/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/bench/exp2x4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:22:39,237 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:22:39,289 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 17:22:39,307 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:22:39,308 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:22:39,308 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:22:39,309 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:22:39,310 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:22:39,310 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:22:39,310 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:22:39,311 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:22:39,311 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:22:39,311 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:22:39,312 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:22:39,312 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:22:39,312 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:22:39,312 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:22:39,313 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:22:39,313 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:22:39,313 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:22:39,313 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:22:39,314 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:22:39,314 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:22:39,314 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:22:39,314 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:22:39,315 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:22:39,315 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:22:39,315 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:22:39,315 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:22:39,316 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:22:39,316 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:22:39,316 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:22:39,316 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:22:39,317 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:22:39,317 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:22:39,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:22:39,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:22:39,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:22:39,524 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:22:39,526 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:22:39,528 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl [2023-10-12 17:22:39,530 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl' [2023-10-12 17:22:39,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:22:39,558 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:22:39,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:22:39,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:22:39,561 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:22:39,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:39" (1/1) ... [2023-10-12 17:22:39,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:39" (1/1) ... [2023-10-12 17:22:39,580 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:22:39,581 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:22:39,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:22:39,583 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:22:39,583 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:22:39,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:39" (1/1) ... [2023-10-12 17:22:39,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:39" (1/1) ... [2023-10-12 17:22:39,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:39" (1/1) ... [2023-10-12 17:22:39,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:39" (1/1) ... [2023-10-12 17:22:39,594 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:39" (1/1) ... [2023-10-12 17:22:39,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:39" (1/1) ... [2023-10-12 17:22:39,598 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:39" (1/1) ... [2023-10-12 17:22:39,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:39" (1/1) ... [2023-10-12 17:22:39,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:22:39,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:22:39,603 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:22:39,603 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:22:39,604 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:39" (1/1) ... [2023-10-12 17:22:39,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:39,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:39,635 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 17:22:39,657 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 17:22:39,667 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:22:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:22:39,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:22:39,668 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:22:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:22:39,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:22:39,668 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:22:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:22:39,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:22:39,669 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:22:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:22:39,669 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:22:39,670 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:22:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:22:39,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:22:39,671 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 17:22:39,709 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:22:39,711 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:22:39,829 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:22:39,836 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:22:39,836 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:22:39,837 INFO L201 PluginConnector]: Adding new model exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:22:39 BoogieIcfgContainer [2023-10-12 17:22:39,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:22:39,838 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:22:39,838 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:22:39,843 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:22:39,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:22:39,843 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:39" (1/2) ... [2023-10-12 17:22:39,844 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c1ab8a4 and model type exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:22:39, skipping insertion in model container [2023-10-12 17:22:39,844 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:22:39,845 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:22:39" (2/2) ... [2023-10-12 17:22:39,846 INFO L332 chiAutomizerObserver]: Analyzing ICFG exp2x4.wvr.bpl [2023-10-12 17:22:39,895 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:22:39,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 41 transitions, 114 flow [2023-10-12 17:22:39,949 INFO L124 PetriNetUnfolderBase]: 4/33 cut-off events. [2023-10-12 17:22:39,950 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:22:39,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 33 events. 4/33 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 75 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-10-12 17:22:39,953 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 41 transitions, 114 flow [2023-10-12 17:22:39,956 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 33 transitions, 90 flow [2023-10-12 17:22:39,959 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:22:39,969 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 33 transitions, 90 flow [2023-10-12 17:22:39,971 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 33 transitions, 90 flow [2023-10-12 17:22:39,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 33 transitions, 90 flow [2023-10-12 17:22:39,977 INFO L124 PetriNetUnfolderBase]: 4/33 cut-off events. [2023-10-12 17:22:39,978 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:22:39,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 33 events. 4/33 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 75 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-10-12 17:22:39,979 INFO L119 LiptonReduction]: Number of co-enabled transitions 420 [2023-10-12 17:22:40,245 INFO L134 LiptonReduction]: Checked pairs total: 276 [2023-10-12 17:22:40,246 INFO L136 LiptonReduction]: Total number of compositions: 15 [2023-10-12 17:22:40,255 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:22:40,255 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:22:40,256 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:22:40,256 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:22:40,256 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:22:40,256 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:22:40,257 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:22:40,258 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:22:40,259 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:22:40,264 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:40,264 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:22:40,264 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:22:40,264 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:40,270 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:22:40,270 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:22:40,271 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:40,271 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:22:40,271 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:22:40,271 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:40,275 INFO L748 eck$LassoCheckResult]: Stem: 50#[$Ultimate##0]true [74] $Ultimate##0-->L55: Formula: (and (< 0 v_x3_1) (= v_x2_7 v_x1_7) (= v_x4_1 v_x3_1) (< 0 v_x1_7)) InVars {x1=v_x1_7, x4=v_x4_1, x2=v_x2_7, x3=v_x3_1} OutVars{x1=v_x1_7, x4=v_x4_1, x2=v_x2_7, x3=v_x3_1} AuxVars[] AssignedVars[] 52#[L55]true [100] L55-->L18: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 54#[L55-1, L18]true [2023-10-12 17:22:40,275 INFO L750 eck$LassoCheckResult]: Loop: 54#[L55-1, L18]true [127] L18-->L18: Formula: (and (= (* v_x1_21 4) v_x1_19) (< v_x1_21 v_n_27)) InVars {n=v_n_27, x1=v_x1_21} OutVars{n=v_n_27, x1=v_x1_19} AuxVars[] AssignedVars[x1] 54#[L55-1, L18]true [2023-10-12 17:22:40,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:40,278 INFO L85 PathProgramCache]: Analyzing trace with hash 3355, now seen corresponding path program 1 times [2023-10-12 17:22:40,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:40,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241704306] [2023-10-12 17:22:40,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:40,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:40,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:40,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:40,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:40,387 INFO L85 PathProgramCache]: Analyzing trace with hash 158, now seen corresponding path program 1 times [2023-10-12 17:22:40,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:40,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252247957] [2023-10-12 17:22:40,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:40,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:40,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:40,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:40,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:40,397 INFO L85 PathProgramCache]: Analyzing trace with hash 104132, now seen corresponding path program 1 times [2023-10-12 17:22:40,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:40,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80640758] [2023-10-12 17:22:40,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:40,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:40,402 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:40,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:40,471 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:40,472 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:40,472 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:40,472 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:40,472 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:22:40,472 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:40,472 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:40,472 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:40,473 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x4.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:22:40,473 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:40,473 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:40,489 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 17:22:40,501 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 17:22:40,512 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 17:22:40,565 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:40,565 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:22:40,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:40,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:40,570 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 17:22:40,571 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 17:22:40,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:40,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:40,594 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:40,594 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:40,598 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 17:22:40,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:40,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:40,599 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 17:22:40,600 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 17:22:40,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:40,603 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:40,641 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 17:22:40,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:40,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:40,643 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 17:22:40,645 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 17:22:40,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:22:40,647 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:40,730 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:22:40,734 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 17:22:40,734 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:40,734 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:40,734 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:40,734 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:40,734 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:40,734 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:40,735 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:40,735 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:40,735 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x4.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:22:40,735 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:40,735 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:40,736 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 17:22:40,741 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 17:22:40,748 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 17:22:40,785 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:40,788 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:40,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:40,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:40,803 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 17:22:40,805 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 17:22:40,806 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 17:22:40,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:40,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:40,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:40,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:40,817 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:40,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:40,839 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:40,842 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 17:22:40,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:40,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:40,844 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 17:22:40,844 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 17:22:40,847 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 17:22:40,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:40,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:40,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:40,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:40,861 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:40,861 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:40,874 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:40,905 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:22:40,905 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:22:40,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:40,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:40,915 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 17:22:40,916 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 17:22:40,937 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:40,954 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:22:40,954 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:40,955 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, n) = -1*x1 + 1*n Supporting invariants [3*x1 - 2 >= 0] [2023-10-12 17:22:40,960 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 17:22:40,968 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:22:40,992 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:41,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 3 conjunts are in the unsatisfiable core [2023-10-12 17:22:41,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:41,018 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:22:41,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:41,019 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 17:22:41,039 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-10-12 17:22:41,040 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 1.0) 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 17:22:41,297 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 1.0) 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 8 states and 495 transitions. [2023-10-12 17:22:41,298 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:41,301 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:41,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 1 non-accepting loop states 2 accepting loop states [2023-10-12 17:22:41,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) 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 17:22:41,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 284 transitions. [2023-10-12 17:22:41,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 284 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:22:41,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:41,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 284 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:22:41,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:41,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 284 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:22:41,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:41,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:41,395 INFO L124 PetriNetUnfolderBase]: 431/583 cut-off events. [2023-10-12 17:22:41,395 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2023-10-12 17:22:41,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1327 conditions, 583 events. 431/583 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1635 event pairs, 67 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 968. Up to 203 conditions per place. [2023-10-12 17:22:41,397 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:41,402 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:41,403 INFO L430 stractBuchiCegarLoop]: Abstraction has has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:41,403 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:22:41,403 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:41,407 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:41,408 INFO L124 PetriNetUnfolderBase]: 27/42 cut-off events. [2023-10-12 17:22:41,408 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-10-12 17:22:41,408 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:41,408 INFO L748 eck$LassoCheckResult]: Stem: 50#[$Ultimate##0]true [74] $Ultimate##0-->L55: Formula: (and (< 0 v_x3_1) (= v_x2_7 v_x1_7) (= v_x4_1 v_x3_1) (< 0 v_x1_7)) InVars {x1=v_x1_7, x4=v_x4_1, x2=v_x2_7, x3=v_x3_1} OutVars{x1=v_x1_7, x4=v_x4_1, x2=v_x2_7, x3=v_x3_1} AuxVars[] AssignedVars[] 52#[L55]true [100] L55-->L18: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 54#[L55-1, L18]true [103] L55-1-->L27: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 118#[L56, L18, L27]true [2023-10-12 17:22:41,408 INFO L750 eck$LassoCheckResult]: Loop: 118#[L56, L18, L27]true [124] L27-->L27: Formula: (and (< v_x2_20 v_n_23) (= v_x2_19 (* v_x2_20 4))) InVars {n=v_n_23, x2=v_x2_20} OutVars{n=v_n_23, x2=v_x2_19} AuxVars[] AssignedVars[x2] 118#[L56, L18, L27]true [124] L27-->L27: Formula: (and (< v_x2_20 v_n_23) (= v_x2_19 (* v_x2_20 4))) InVars {n=v_n_23, x2=v_x2_20} OutVars{n=v_n_23, x2=v_x2_19} AuxVars[] AssignedVars[x2] 118#[L56, L18, L27]true [2023-10-12 17:22:41,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:41,409 INFO L85 PathProgramCache]: Analyzing trace with hash 104108, now seen corresponding path program 1 times [2023-10-12 17:22:41,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:41,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143147478] [2023-10-12 17:22:41,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:41,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:41,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:41,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:41,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:41,417 INFO L85 PathProgramCache]: Analyzing trace with hash 4929, now seen corresponding path program 1 times [2023-10-12 17:22:41,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:41,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17714236] [2023-10-12 17:22:41,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:41,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:41,420 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:41,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:41,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:41,424 INFO L85 PathProgramCache]: Analyzing trace with hash 100051756, now seen corresponding path program 1 times [2023-10-12 17:22:41,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:41,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133071304] [2023-10-12 17:22:41,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:41,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:41,429 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:41,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:41,489 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:41,489 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:41,490 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:41,490 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:41,490 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:22:41,490 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,490 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:41,490 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:41,490 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x4.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:22:41,490 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:41,490 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:41,491 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 17:22:41,494 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 17:22:41,497 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 17:22:41,505 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 17:22:41,507 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 17:22:41,554 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:41,555 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:22:41,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:41,565 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 17:22:41,569 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 17:22:41,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:41,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:41,588 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:41,588 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:41,594 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 17:22:41,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:41,596 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 17:22:41,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:41,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:41,612 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 17:22:41,620 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:41,620 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x3=4, x4=4} Honda state: {x3=4, x4=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:41,626 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 17:22:41,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:41,627 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:41,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-10-12 17:22:41,631 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:41,631 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:41,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-10-12 17:22:41,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:41,650 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:41,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-10-12 17:22:41,654 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:22:41,654 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:41,760 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:22:41,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-10-12 17:22:41,765 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:41,765 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:41,765 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:41,765 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:41,765 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:41,765 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,765 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:41,765 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:41,765 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x4.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:22:41,765 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:41,765 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:41,766 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 17:22:41,776 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 17:22:41,785 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 17:22:41,788 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 17:22:41,791 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 17:22:41,857 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 17:22:41,863 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:41,864 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:41,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:41,865 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:41,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-10-12 17:22:41,869 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 17:22:41,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:41,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:41,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:41,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:41,878 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:41,878 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:41,884 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:41,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:41,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:41,889 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:41,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-10-12 17:22:41,892 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 17:22:41,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:41,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:41,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:41,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:41,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:41,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:41,928 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:41,936 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:22:41,936 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-10-12 17:22:41,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:41,938 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:41,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-10-12 17:22:41,942 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:41,983 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:22:41,984 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:41,984 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, n) = -1*x2 + 1*n Supporting invariants [15*x2 - 2 >= 0] [2023-10-12 17:22:41,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:41,993 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:22:42,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:42,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:22:42,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:42,047 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:22:42,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:42,061 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 17:22:42,062 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-10-12 17:22:42,062 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 4 states, 4 states have (on average 1.25) 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 17:22:42,301 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 4 states, 4 states have (on average 1.25) 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 10 states and 604 transitions. [2023-10-12 17:22:42,302 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:42,341 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:42,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 2 non-accepting loop states 2 accepting loop states [2023-10-12 17:22:42,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) 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 17:22:42,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 340 transitions. [2023-10-12 17:22:42,343 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 340 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:22:42,343 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:42,343 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 340 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:22:42,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:42,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 340 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:22:42,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:42,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 7240 transitions, 52944 flow [2023-10-12 17:22:42,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:42,613 INFO L124 PetriNetUnfolderBase]: 1314/1731 cut-off events. [2023-10-12 17:22:42,613 INFO L125 PetriNetUnfolderBase]: For 321/321 co-relation queries the response was YES. [2023-10-12 17:22:42,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5646 conditions, 1731 events. 1314/1731 cut-off events. For 321/321 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5877 event pairs, 122 based on Foata normal form. 0/931 useless extension candidates. Maximal degree in co-relation 4078. Up to 622 conditions per place. [2023-10-12 17:22:42,616 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 64 places, 7240 transitions, 52944 flow [2023-10-12 17:22:42,684 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 64 places, 7240 transitions, 52944 flow [2023-10-12 17:22:42,685 INFO L430 stractBuchiCegarLoop]: Abstraction has has 64 places, 7240 transitions, 52944 flow [2023-10-12 17:22:42,685 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:22:42,685 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 64 places, 7240 transitions, 52944 flow [2023-10-12 17:22:42,731 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:42,732 INFO L124 PetriNetUnfolderBase]: 191/259 cut-off events. [2023-10-12 17:22:42,732 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-10-12 17:22:42,732 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:42,733 INFO L748 eck$LassoCheckResult]: Stem: 50#[$Ultimate##0]true [74] $Ultimate##0-->L55: Formula: (and (< 0 v_x3_1) (= v_x2_7 v_x1_7) (= v_x4_1 v_x3_1) (< 0 v_x1_7)) InVars {x1=v_x1_7, x4=v_x4_1, x2=v_x2_7, x3=v_x3_1} OutVars{x1=v_x1_7, x4=v_x4_1, x2=v_x2_7, x3=v_x3_1} AuxVars[] AssignedVars[] 52#[L55]true [100] L55-->L18: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 54#[L55-1, L18]true [103] L55-1-->L27: 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] 118#[L56, L18, L27]true [127] L18-->L18: Formula: (and (= (* v_x1_21 4) v_x1_19) (< v_x1_21 v_n_27)) InVars {n=v_n_27, x1=v_x1_21} OutVars{n=v_n_27, x1=v_x1_19} AuxVars[] AssignedVars[x1] 118#[L56, L18, L27]true [106] L56-->L36: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 192#[L18, L36, L27, L57]true [119] L27-->thread2EXIT: Formula: (<= v_n_17 v_x2_15) InVars {n=v_n_17, x2=v_x2_15} OutVars{n=v_n_17, x2=v_x2_15} AuxVars[] AssignedVars[] 194#[L18, thread2EXIT, L36, L57]true [128] L36-->L36: Formula: (and (= (* v_x3_21 4) v_x3_19) (< v_x3_21 v_n_29)) InVars {n=v_n_29, x3=v_x3_21} OutVars{n=v_n_29, x3=v_x3_19} AuxVars[] AssignedVars[x3] 194#[L18, thread2EXIT, L36, L57]true [2023-10-12 17:22:42,733 INFO L750 eck$LassoCheckResult]: Loop: 194#[L18, thread2EXIT, L36, L57]true [128] L36-->L36: Formula: (and (= (* v_x3_21 4) v_x3_19) (< v_x3_21 v_n_29)) InVars {n=v_n_29, x3=v_x3_21} OutVars{n=v_n_29, x3=v_x3_19} AuxVars[] AssignedVars[x3] 194#[L18, thread2EXIT, L36, L57]true [128] L36-->L36: Formula: (and (= (* v_x3_21 4) v_x3_19) (< v_x3_21 v_n_29)) InVars {n=v_n_29, x3=v_x3_21} OutVars{n=v_n_29, x3=v_x3_19} AuxVars[] AssignedVars[x3] 194#[L18, thread2EXIT, L36, L57]true [2023-10-12 17:22:42,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:42,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1660532896, now seen corresponding path program 1 times [2023-10-12 17:22:42,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:42,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397686593] [2023-10-12 17:22:42,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:42,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:42,801 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 17:22:42,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:22:42,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397686593] [2023-10-12 17:22:42,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397686593] provided 1 perfect and 0 imperfect interpolant sequences [2023-10-12 17:22:42,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-10-12 17:22:42,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-10-12 17:22:42,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112454515] [2023-10-12 17:22:42,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-10-12 17:22:42,804 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-10-12 17:22:42,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:42,805 INFO L85 PathProgramCache]: Analyzing trace with hash 5057, now seen corresponding path program 1 times [2023-10-12 17:22:42,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:42,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697952872] [2023-10-12 17:22:42,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:42,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:42,808 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:42,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:42,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:22:42,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-10-12 17:22:42,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-10-12 17:22:42,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 7240 transitions, 52944 flow. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 17:22:42,832 INFO L124 encePairwiseOnDemand]: Subtrahend is not yet constructed. Will not use universal subtrahend loopers optimization. [2023-10-12 17:22:42,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-10-12 17:22:43,603 INFO L124 PetriNetUnfolderBase]: 2553/3520 cut-off events. [2023-10-12 17:22:43,604 INFO L125 PetriNetUnfolderBase]: For 766/766 co-relation queries the response was YES. [2023-10-12 17:22:43,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15050 conditions, 3520 events. 2553/3520 cut-off events. For 766/766 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 14815 event pairs, 135 based on Foata normal form. 63/2121 useless extension candidates. Maximal degree in co-relation 10624. Up to 1835 conditions per place. [2023-10-12 17:22:43,628 INFO L140 encePairwiseOnDemand]: 50/56 looper letters, 360 selfloop transitions, 33 changer transitions 112/505 dead transitions. [2023-10-12 17:22:43,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 505 transitions, 4598 flow [2023-10-12 17:22:43,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 505 transitions, 4598 flow [2023-10-12 17:22:43,817 INFO L124 PetriNetUnfolderBase]: 2553/3520 cut-off events. [2023-10-12 17:22:43,818 INFO L125 PetriNetUnfolderBase]: For 766/766 co-relation queries the response was YES. [2023-10-12 17:22:43,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15050 conditions, 3520 events. 2553/3520 cut-off events. For 766/766 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 14810 event pairs, 135 based on Foata normal form. 0/2058 useless extension candidates. Maximal degree in co-relation 10624. Up to 1835 conditions per place. [2023-10-12 17:22:43,822 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 47 places, 505 transitions, 4598 flow [2023-10-12 17:22:43,827 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 47 places, 505 transitions, 4598 flow [2023-10-12 17:22:43,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-10-12 17:22:43,828 INFO L430 stractBuchiCegarLoop]: Abstraction has has 47 places, 505 transitions, 4598 flow [2023-10-12 17:22:43,828 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:22:43,828 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 47 places, 505 transitions, 4598 flow [2023-10-12 17:22:43,849 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:43,849 INFO L124 PetriNetUnfolderBase]: 253/370 cut-off events. [2023-10-12 17:22:43,849 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-10-12 17:22:43,849 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:43,850 INFO L748 eck$LassoCheckResult]: Stem: 50#[$Ultimate##0]true [74] $Ultimate##0-->L55: Formula: (and (< 0 v_x3_1) (= v_x2_7 v_x1_7) (= v_x4_1 v_x3_1) (< 0 v_x1_7)) InVars {x1=v_x1_7, x4=v_x4_1, x2=v_x2_7, x3=v_x3_1} OutVars{x1=v_x1_7, x4=v_x4_1, x2=v_x2_7, x3=v_x3_1} AuxVars[] AssignedVars[] 52#[L55]true [100] L55-->L18: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 54#[L55-1, L18]true [120] L18-->thread1EXIT: Formula: (<= v_n_19 v_x1_9) InVars {n=v_n_19, x1=v_x1_9} OutVars{n=v_n_19, x1=v_x1_9} AuxVars[] AssignedVars[] 212#[L55-1, thread1EXIT]true [103] L55-1-->L27: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 214#[L56, L27, thread1EXIT]true [106] L56-->L36: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 216#[L36, L27, L57, thread1EXIT]true [2023-10-12 17:22:43,850 INFO L750 eck$LassoCheckResult]: Loop: 216#[L36, L27, L57, thread1EXIT]true [128] L36-->L36: Formula: (and (= (* v_x3_21 4) v_x3_19) (< v_x3_21 v_n_29)) InVars {n=v_n_29, x3=v_x3_21} OutVars{n=v_n_29, x3=v_x3_19} AuxVars[] AssignedVars[x3] 216#[L36, L27, L57, thread1EXIT]true [128] L36-->L36: Formula: (and (= (* v_x3_21 4) v_x3_19) (< v_x3_21 v_n_29)) InVars {n=v_n_29, x3=v_x3_21} OutVars{n=v_n_29, x3=v_x3_19} AuxVars[] AssignedVars[x3] 216#[L36, L27, L57, thread1EXIT]true [2023-10-12 17:22:43,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:43,850 INFO L85 PathProgramCache]: Analyzing trace with hash 100067424, now seen corresponding path program 1 times [2023-10-12 17:22:43,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:43,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827536924] [2023-10-12 17:22:43,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:43,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:43,869 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:43,873 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:43,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:43,873 INFO L85 PathProgramCache]: Analyzing trace with hash 5057, now seen corresponding path program 2 times [2023-10-12 17:22:43,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:43,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913722262] [2023-10-12 17:22:43,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:43,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:43,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:43,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:43,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:43,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1675518048, now seen corresponding path program 1 times [2023-10-12 17:22:43,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:43,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938737101] [2023-10-12 17:22:43,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:43,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:43,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:43,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:43,957 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:43,957 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:43,957 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:43,957 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:43,957 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:22:43,957 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,957 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:43,957 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:43,957 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x4.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:22:43,957 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:43,957 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:43,959 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 17:22:43,969 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 17:22:43,971 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 17:22:43,973 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 17:22:43,974 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 17:22:43,976 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 17:22:43,978 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 17:22:44,040 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:44,040 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:22:44,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:44,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:44,041 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:44,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-10-12 17:22:44,045 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:44,045 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:44,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:44,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:44,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:44,082 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:44,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:22:44,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:44,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-10-12 17:22:44,217 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:22:44,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:44,220 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:44,221 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:44,221 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:44,221 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:44,221 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:44,221 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:44,221 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:44,221 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:44,221 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x4.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:22:44,221 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:44,221 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:44,222 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 17:22:44,228 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 17:22:44,239 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 17:22:44,242 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 17:22:44,244 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 17:22:44,246 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 17:22:44,248 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 17:22:44,311 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:44,311 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:44,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:44,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:44,312 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:44,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-10-12 17:22:44,317 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 17:22:44,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:44,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:44,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:44,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:44,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:44,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:44,328 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:44,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:44,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:44,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:44,335 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:44,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-10-12 17:22:44,340 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 17:22:44,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:44,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:44,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:44,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:44,350 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:44,350 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:44,371 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:44,385 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2023-10-12 17:22:44,385 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-10-12 17:22:44,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:44,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:44,386 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:44,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-10-12 17:22:44,390 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:44,411 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2023-10-12 17:22:44,411 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:44,411 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, x3) = 1*x2 - 1*x3 Supporting invariants [-1*n + 1*x2 >= 0, 15*x3 - 2 >= 0] [2023-10-12 17:22:44,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:44,426 INFO L156 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2023-10-12 17:22:44,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:44,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:22:44,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:44,489 WARN L260 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 7 conjunts are in the unsatisfiable core [2023-10-12 17:22:44,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:44,507 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 17:22:44,507 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2023-10-12 17:22:44,507 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 17:22:44,805 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 10 states and 596 transitions. [2023-10-12 17:22:44,805 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:44,848 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:44,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2023-10-12 17:22:44,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 17:22:44,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 389 transitions. [2023-10-12 17:22:44,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 389 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:22:44,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:44,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 389 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:22:44,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:44,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 389 transitions. Stem has 5 letters. Loop has 4 letters. [2023-10-12 17:22:44,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:44,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 10826 transitions, 120536 flow [2023-10-12 17:22:45,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:48,165 INFO L124 PetriNetUnfolderBase]: 5655/7911 cut-off events. [2023-10-12 17:22:48,166 INFO L125 PetriNetUnfolderBase]: For 2056/2056 co-relation queries the response was YES. [2023-10-12 17:22:48,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41785 conditions, 7911 events. 5655/7911 cut-off events. For 2056/2056 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 39715 event pairs, 311 based on Foata normal form. 0/4641 useless extension candidates. Maximal degree in co-relation 26027. Up to 3120 conditions per place. [2023-10-12 17:22:48,171 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 67 places, 10826 transitions, 120536 flow [2023-10-12 17:22:48,278 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 67 places, 10826 transitions, 120536 flow [2023-10-12 17:22:48,278 INFO L430 stractBuchiCegarLoop]: Abstraction has has 67 places, 10826 transitions, 120536 flow [2023-10-12 17:22:48,279 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:22:48,279 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 67 places, 10826 transitions, 120536 flow [2023-10-12 17:22:49,005 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:49,005 INFO L124 PetriNetUnfolderBase]: 826/1154 cut-off events. [2023-10-12 17:22:49,006 INFO L125 PetriNetUnfolderBase]: For 218/218 co-relation queries the response was YES. [2023-10-12 17:22:49,006 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:49,006 INFO L748 eck$LassoCheckResult]: Stem: 50#[$Ultimate##0]true [74] $Ultimate##0-->L55: Formula: (and (< 0 v_x3_1) (= v_x2_7 v_x1_7) (= v_x4_1 v_x3_1) (< 0 v_x1_7)) InVars {x1=v_x1_7, x4=v_x4_1, x2=v_x2_7, x3=v_x3_1} OutVars{x1=v_x1_7, x4=v_x4_1, x2=v_x2_7, x3=v_x3_1} AuxVars[] AssignedVars[] 52#[L55]true [100] L55-->L18: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 54#[L55-1, L18]true [127] L18-->L18: Formula: (and (= (* v_x1_21 4) v_x1_19) (< v_x1_21 v_n_27)) InVars {n=v_n_27, x1=v_x1_21} OutVars{n=v_n_27, x1=v_x1_19} AuxVars[] AssignedVars[x1] 54#[L55-1, L18]true [103] L55-1-->L27: 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] 118#[L56, L18, L27]true [106] L56-->L36: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 192#[L18, L36, L27, L57]true [128] L36-->L36: Formula: (and (= (* v_x3_21 4) v_x3_19) (< v_x3_21 v_n_29)) InVars {n=v_n_29, x3=v_x3_21} OutVars{n=v_n_29, x3=v_x3_19} AuxVars[] AssignedVars[x3] 192#[L18, L36, L27, L57]true [128] L36-->L36: Formula: (and (= (* v_x3_21 4) v_x3_19) (< v_x3_21 v_n_29)) InVars {n=v_n_29, x3=v_x3_21} OutVars{n=v_n_29, x3=v_x3_19} AuxVars[] AssignedVars[x3] 192#[L18, L36, L27, L57]true [128] L36-->L36: Formula: (and (= (* v_x3_21 4) v_x3_19) (< v_x3_21 v_n_29)) InVars {n=v_n_29, x3=v_x3_21} OutVars{n=v_n_29, x3=v_x3_19} AuxVars[] AssignedVars[x3] 192#[L18, L36, L27, L57]true [2023-10-12 17:22:49,006 INFO L750 eck$LassoCheckResult]: Loop: 192#[L18, L36, L27, L57]true [128] L36-->L36: Formula: (and (= (* v_x3_21 4) v_x3_19) (< v_x3_21 v_n_29)) InVars {n=v_n_29, x3=v_x3_21} OutVars{n=v_n_29, x3=v_x3_19} AuxVars[] AssignedVars[x3] 192#[L18, L36, L27, L57]true [128] L36-->L36: Formula: (and (= (* v_x3_21 4) v_x3_19) (< v_x3_21 v_n_29)) InVars {n=v_n_29, x3=v_x3_21} OutVars{n=v_n_29, x3=v_x3_19} AuxVars[] AssignedVars[x3] 192#[L18, L36, L27, L57]true [2023-10-12 17:22:49,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:49,006 INFO L85 PathProgramCache]: Analyzing trace with hash 601856121, now seen corresponding path program 1 times [2023-10-12 17:22:49,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:49,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559185349] [2023-10-12 17:22:49,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:49,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:49,013 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:49,017 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:49,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:49,017 INFO L85 PathProgramCache]: Analyzing trace with hash 5057, now seen corresponding path program 3 times [2023-10-12 17:22:49,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:49,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711119776] [2023-10-12 17:22:49,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:49,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:49,020 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:49,021 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:49,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:49,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1436848583, now seen corresponding path program 2 times [2023-10-12 17:22:49,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:49,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459243291] [2023-10-12 17:22:49,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:49,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:49,028 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:49,033 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:49,139 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:49,140 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:49,140 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:49,140 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:49,140 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:22:49,140 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:49,140 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:49,140 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:49,140 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x4.wvr.bpl_BEv2_Iteration5_Lasso [2023-10-12 17:22:49,140 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:49,140 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:49,142 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 17:22:49,145 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 17:22:49,146 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 17:22:49,161 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 17:22:49,163 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 17:22:49,165 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 17:22:49,167 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 17:22:49,239 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:49,239 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:22:49,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:49,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:49,240 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:49,254 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:49,254 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:49,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-10-12 17:22:49,261 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:49,261 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork2_thidvar1=0} Honda state: {thread3Thread1of1ForFork2_thidvar1=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:49,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:49,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:49,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:49,264 INFO L229 MonitoredProcess]: Starting monitored process 21 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 17:22:49,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-10-12 17:22:49,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:49,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:49,275 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:49,275 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork2_thidvar0=0} Honda state: {thread3Thread1of1ForFork2_thidvar0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:49,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:49,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:49,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:49,281 INFO L229 MonitoredProcess]: Starting monitored process 22 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 17:22:49,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-10-12 17:22:49,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:49,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:49,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-10-12 17:22:49,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:49,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:49,305 INFO L229 MonitoredProcess]: Starting monitored process 23 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 17:22:49,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-10-12 17:22:49,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:22:49,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:49,376 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:22:49,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:49,379 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:49,379 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:49,379 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:49,379 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:49,380 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:49,380 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:49,380 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:49,380 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:49,380 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x4.wvr.bpl_BEv2_Iteration5_Lasso [2023-10-12 17:22:49,380 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:49,380 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:49,381 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 17:22:49,395 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 17:22:49,398 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 17:22:49,400 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 17:22:49,402 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 17:22:49,404 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 17:22:49,406 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 17:22:49,490 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:49,491 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:49,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:49,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:49,492 INFO L229 MonitoredProcess]: Starting monitored process 24 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 17:22:49,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-10-12 17:22:49,495 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 17:22:49,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:49,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:49,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:49,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:49,506 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:49,506 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:49,522 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:49,536 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-10-12 17:22:49,537 INFO L444 ModelExtractionUtils]: 11 out of 19 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-10-12 17:22:49,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:49,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:49,538 INFO L229 MonitoredProcess]: Starting monitored process 25 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 17:22:49,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-10-12 17:22:49,541 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:49,562 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:22:49,563 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:49,563 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x3) = 1*n - 1*x3 Supporting invariants [15*x3 - 2 >= 0] [2023-10-12 17:22:49,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:49,570 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:22:49,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:49,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:22:49,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:49,645 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:22:49,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:49,657 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 17:22:49,658 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2023-10-12 17:22:49,658 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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 17:22:49,831 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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 495 transitions. [2023-10-12 17:22:49,831 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:50,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:51,388 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:51,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 1 non-accepting loop states 2 accepting loop states [2023-10-12 17:22:51,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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 17:22:51,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 284 transitions. [2023-10-12 17:22:51,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 284 transitions. Stem has 8 letters. Loop has 2 letters. [2023-10-12 17:22:51,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:51,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 284 transitions. Stem has 10 letters. Loop has 2 letters. [2023-10-12 17:22:51,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:51,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 284 transitions. Stem has 8 letters. Loop has 4 letters. [2023-10-12 17:22:51,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:51,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 191672 transitions, 2521032 flow Received shutdown request... [2023-10-12 17:26:17,335 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-10-12 17:26:17,395 WARN L144 chiPetriNetCegarLoop]: Unhandled de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user.occured during abstraction size reduction. Continuing with non-reduced net [2023-10-12 17:26:17,395 INFO L430 stractBuchiCegarLoop]: Abstraction has has 83 places, 191672 transitions, 2521032 flow [2023-10-12 17:26:17,395 INFO L337 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-10-12 17:26:17,395 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 83 places, 191672 transitions, 2521032 flow [2023-10-12 17:26:17,469 WARN L343 stractBuchiCegarLoop]: Verification cancelled [2023-10-12 17:26:17,475 INFO L201 PluginConnector]: Adding new model exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:26:17 BoogieIcfgContainer [2023-10-12 17:26:17,475 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:26:17,476 INFO L158 Benchmark]: Toolchain (without parser) took 217918.29ms. Allocated memory was 207.6MB in the beginning and 5.6GB in the end (delta: 5.3GB). Free memory was 160.4MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-10-12 17:26:17,476 INFO L158 Benchmark]: Boogie PL CUP Parser took 2.59ms. Allocated memory is still 207.6MB. Free memory was 161.6MB in the beginning and 161.5MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:26:17,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.75ms. Allocated memory is still 207.6MB. Free memory was 160.4MB in the beginning and 158.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:26:17,477 INFO L158 Benchmark]: Boogie Preprocessor took 18.88ms. Allocated memory is still 207.6MB. Free memory was 158.9MB in the beginning and 157.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:26:17,477 INFO L158 Benchmark]: RCFGBuilder took 234.45ms. Allocated memory is still 207.6MB. Free memory was 157.6MB in the beginning and 147.9MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:26:17,477 INFO L158 Benchmark]: BuchiAutomizer took 217637.16ms. Allocated memory was 207.6MB in the beginning and 5.6GB in the end (delta: 5.3GB). Free memory was 147.7MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-10-12 17:26:17,478 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 2.59ms. Allocated memory is still 207.6MB. Free memory was 161.6MB in the beginning and 161.5MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.75ms. Allocated memory is still 207.6MB. Free memory was 160.4MB in the beginning and 158.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.88ms. Allocated memory is still 207.6MB. Free memory was 158.9MB in the beginning and 157.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 234.45ms. Allocated memory is still 207.6MB. Free memory was 157.6MB in the beginning and 147.9MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 217637.16ms. Allocated memory was 207.6MB in the beginning and 5.6GB in the end (delta: 5.3GB). Free memory was 147.7MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 4 deterministic, 0 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function -1 * x1 + n and consists of 6 locations. One deterministic module has affine ranking function n + -1 * x2 and consists of 7 locations. One deterministic module has affine ranking function -1 * x3 + x2 and consists of 8 locations. One deterministic module has affine ranking function -1 * x3 + n and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 2521032 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 217.5s and 6 iterations. TraceHistogramMax:0. Analysis of lassos took 2.5s. Construction of modules took 0.6s. Büchi inclusion checks took 3.3s. 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 [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 736 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 736 mSDsluCounter, 955 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 534 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1427 IncrementalHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 421 mSDtfsCounter, 1427 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital43 mio100 ax100 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf92 smp100 dnf100 smp100 tf100 neg100 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 49ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.3s - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Buchi Automizer is unable to decide termination: Timeout while executing PetriNetUnfolderBuchi. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 42 PlacesBefore, 28 PlacesAfterwards, 33 TransitionsBefore, 19 TransitionsAfterwards, 420 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 15 TotalNumberOfCompositions, 276 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 276, independent: 276, independent conditional: 0, independent unconditional: 276, 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: 240, independent: 240, independent conditional: 0, independent unconditional: 240, 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: 240, independent: 240, independent conditional: 0, independent unconditional: 240, 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: 276, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 240, unknown conditional: 0, unknown unconditional: 240] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, 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 could not prove your program: Timeout Completed graceful shutdown