/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/exp2x3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:22:38,550 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:22:38,626 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 17:22:38,657 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:22:38,658 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:22:38,658 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:22:38,659 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:22:38,659 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:22:38,660 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:22:38,660 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:22:38,660 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:22:38,663 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:22:38,664 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:22:38,667 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:22:38,668 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:22:38,668 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:22:38,669 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:22:38,670 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:22:38,670 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:22:38,670 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:22:38,670 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:22:38,671 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:22:38,672 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:22:38,672 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:22:38,672 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:22:38,672 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:22:38,672 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:22:38,673 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:22:38,673 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:22:38,673 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:22:38,674 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:22:38,674 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:22:38,674 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:22:38,676 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:22:38,676 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:22:38,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:22:38,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:22:38,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:22:38,948 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:22:38,949 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:22:38,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x3.wvr.bpl [2023-10-12 17:22:38,950 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x3.wvr.bpl' [2023-10-12 17:22:38,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:22:38,979 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:22:38,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:22:38,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:22:38,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:22:38,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:38" (1/1) ... [2023-10-12 17:22:39,003 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:38" (1/1) ... [2023-10-12 17:22:39,009 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:22:39,010 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:22:39,011 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:22:39,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:22:39,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:22:39,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:38" (1/1) ... [2023-10-12 17:22:39,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:38" (1/1) ... [2023-10-12 17:22:39,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:38" (1/1) ... [2023-10-12 17:22:39,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:38" (1/1) ... [2023-10-12 17:22:39,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:38" (1/1) ... [2023-10-12 17:22:39,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:38" (1/1) ... [2023-10-12 17:22:39,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:38" (1/1) ... [2023-10-12 17:22:39,031 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:38" (1/1) ... [2023-10-12 17:22:39,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:22:39,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:22:39,033 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:22:39,033 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:22:39,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:38" (1/1) ... [2023-10-12 17:22:39,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:39,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:39,066 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 17:22:39,072 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 17:22:39,102 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:22:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:22:39,106 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:22:39,106 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:22:39,107 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:22:39,107 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:22:39,107 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:22:39,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:22:39,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:22:39,109 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:22:39,109 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:22:39,109 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:22:39,110 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:22:39,110 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:22:39,110 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:22:39,111 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 17:22:39,153 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:22:39,155 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:22:39,235 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:22:39,242 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:22:39,242 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:22:39,244 INFO L201 PluginConnector]: Adding new model exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:22:39 BoogieIcfgContainer [2023-10-12 17:22:39,244 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:22:39,245 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:22:39,245 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:22:39,251 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:22:39,252 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:22:39,252 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:38" (1/2) ... [2023-10-12 17:22:39,253 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24eb7108 and model type exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:22:39, skipping insertion in model container [2023-10-12 17:22:39,253 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:22:39,253 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:22:39" (2/2) ... [2023-10-12 17:22:39,254 INFO L332 chiAutomizerObserver]: Analyzing ICFG exp2x3.wvr.bpl [2023-10-12 17:22:39,353 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:22:39,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 106 flow [2023-10-12 17:22:39,397 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2023-10-12 17:22:39,397 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:22:39,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 29 events. 4/29 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:22:39,401 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 106 flow [2023-10-12 17:22:39,405 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 29 transitions, 82 flow [2023-10-12 17:22:39,408 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:22:39,420 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 29 transitions, 82 flow [2023-10-12 17:22:39,422 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 29 transitions, 82 flow [2023-10-12 17:22:39,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 29 transitions, 82 flow [2023-10-12 17:22:39,431 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2023-10-12 17:22:39,431 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:22:39,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 29 events. 4/29 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:22:39,433 INFO L119 LiptonReduction]: Number of co-enabled transitions 288 [2023-10-12 17:22:39,588 INFO L134 LiptonReduction]: Checked pairs total: 222 [2023-10-12 17:22:39,588 INFO L136 LiptonReduction]: Total number of compositions: 11 [2023-10-12 17:22:39,599 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:22:39,599 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:22:39,599 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:22:39,599 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:22:39,600 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:22:39,600 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:22:39,600 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:22:39,600 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:22:39,600 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:22:39,604 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:39,604 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:22:39,604 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:22:39,604 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:39,612 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:22:39,612 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:22:39,613 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:39,613 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:22:39,614 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:22:39,614 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:39,618 INFO L748 eck$LassoCheckResult]: Stem: 46#[$Ultimate##0]true [62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[] 48#[L51]true [97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0] 50#[L18, L51-1]true [2023-10-12 17:22:39,618 INFO L750 eck$LassoCheckResult]: Loop: 50#[L18, L51-1]true [103] L18-->L18: Formula: (and (= v_x1_9 (* 2 v_x1_10)) (< v_x1_10 v_n_11)) InVars {n=v_n_11, x1=v_x1_10} OutVars{n=v_n_11, x1=v_x1_9} AuxVars[] AssignedVars[x1] 50#[L18, L51-1]true [2023-10-12 17:22:39,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:39,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2980, now seen corresponding path program 1 times [2023-10-12 17:22:39,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:39,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583757406] [2023-10-12 17:22:39,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:39,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:39,692 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:39,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:39,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:39,709 INFO L85 PathProgramCache]: Analyzing trace with hash 134, now seen corresponding path program 1 times [2023-10-12 17:22:39,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:39,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377762368] [2023-10-12 17:22:39,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:39,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:39,729 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:39,733 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:39,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:39,735 INFO L85 PathProgramCache]: Analyzing trace with hash 92483, now seen corresponding path program 1 times [2023-10-12 17:22:39,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:39,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633941107] [2023-10-12 17:22:39,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:39,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:39,744 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:39,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:39,853 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:39,854 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:39,854 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:39,854 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:39,854 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:22:39,854 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:39,854 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:39,854 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:39,855 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:22:39,855 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:39,855 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:39,868 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 17:22:39,879 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 17:22:39,888 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 17:22:39,945 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:39,946 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:22:39,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:39,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:39,957 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 17:22:39,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:39,975 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:39,994 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 17:22:39,999 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:39,999 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x4=4, x3=4} Honda state: {x4=4, x3=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:40,008 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 17:22:40,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:40,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:40,010 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 17:22:40,013 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 17:22:40,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:40,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:40,043 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 17:22:40,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:40,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:40,044 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 17:22:40,046 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 17:22:40,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:22:40,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:40,123 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:22:40,127 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 17:22:40,127 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:40,128 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:40,128 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:40,128 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:40,128 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:40,128 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:40,128 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:40,128 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:40,128 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:22:40,128 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:40,129 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:40,130 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 17:22:40,136 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 17:22:40,147 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 17:22:40,202 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:40,206 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:40,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:40,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:40,209 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 17:22:40,222 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 17:22:40,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:40,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:40,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:40,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:40,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:40,239 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:40,246 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 17:22:40,257 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:40,264 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 17:22:40,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:40,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:40,266 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 17:22:40,276 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 17:22:40,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:40,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:40,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:40,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:40,296 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:40,296 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:40,308 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 17:22:40,320 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:40,327 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:22:40,327 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:22:40,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:40,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:40,331 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 17:22:40,331 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 17:22:40,369 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:40,377 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:22:40,377 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:40,378 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, n) = -1*x1 + 1*n Supporting invariants [1*x1 - 1 >= 0] [2023-10-12 17:22:40,381 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 17:22:40,386 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:22:40,413 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:40,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 3 conjunts are in the unsatisfiable core [2023-10-12 17:22:40,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:40,453 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:22:40,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:40,454 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 17:22:40,487 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 17:22:40,489 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 17:22:40,761 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 425 transitions. [2023-10-12 17:22:40,762 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:40,766 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:40,775 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 17:22:40,780 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 17:22:40,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 244 transitions. [2023-10-12 17:22:40,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:22:40,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:40,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:22:40,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:40,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:22:40,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:40,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:40,885 INFO L124 PetriNetUnfolderBase]: 431/583 cut-off events. [2023-10-12 17:22:40,886 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-10-12 17:22:40,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1327 conditions, 583 events. 431/583 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1609 event pairs, 48 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 17:22:40,891 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:40,899 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:40,899 INFO L430 stractBuchiCegarLoop]: Abstraction has has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:40,900 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:22:40,900 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:40,908 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:40,908 INFO L124 PetriNetUnfolderBase]: 24/38 cut-off events. [2023-10-12 17:22:40,908 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-10-12 17:22:40,908 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:40,909 INFO L748 eck$LassoCheckResult]: Stem: 46#[$Ultimate##0]true [62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[] 48#[L51]true [97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0] 50#[L18, L51-1]true [88] L51-1-->L26: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0] 114#[L18, L52, L26]true [2023-10-12 17:22:40,909 INFO L750 eck$LassoCheckResult]: Loop: 114#[L18, L52, L26]true [111] L26-->L26: Formula: (and (< v_x2_14 v_n_23) (= v_x2_13 (* 2 v_x2_14))) InVars {n=v_n_23, x2=v_x2_14} OutVars{n=v_n_23, x2=v_x2_13} AuxVars[] AssignedVars[x2] 114#[L18, L52, L26]true [111] L26-->L26: Formula: (and (< v_x2_14 v_n_23) (= v_x2_13 (* 2 v_x2_14))) InVars {n=v_n_23, x2=v_x2_14} OutVars{n=v_n_23, x2=v_x2_13} AuxVars[] AssignedVars[x2] 114#[L18, L52, L26]true [2023-10-12 17:22:40,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:40,911 INFO L85 PathProgramCache]: Analyzing trace with hash 92468, now seen corresponding path program 1 times [2023-10-12 17:22:40,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:40,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356427238] [2023-10-12 17:22:40,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:40,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:40,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:40,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:40,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:40,933 INFO L85 PathProgramCache]: Analyzing trace with hash 4513, now seen corresponding path program 1 times [2023-10-12 17:22:40,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:40,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465556227] [2023-10-12 17:22:40,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:40,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:40,944 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:40,950 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:40,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:40,952 INFO L85 PathProgramCache]: Analyzing trace with hash 88865300, now seen corresponding path program 1 times [2023-10-12 17:22:40,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:40,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030885847] [2023-10-12 17:22:40,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:40,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:40,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:40,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:41,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-10-12 17:22:41,066 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:41,066 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:41,067 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:41,067 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:41,067 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:22:41,067 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,067 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:41,067 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:41,067 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:22:41,067 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:41,067 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:41,069 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 17:22:41,072 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 17:22:41,075 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 17:22:41,085 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:41,091 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 17:22:41,154 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:41,154 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:22:41,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:41,157 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 17:22:41,165 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 17:22:41,190 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:41,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:41,212 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:41,213 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork3_thidvar0=0} Honda state: {thread1Thread1of1ForFork3_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:41,220 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 17:22:41,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:41,222 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 17:22:41,225 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 17:22:41,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:41,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:41,248 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:41,249 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar1=0} Honda state: {thread2Thread1of1ForFork0_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:41,253 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 17:22:41,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:41,255 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 17:22:41,257 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 17:22:41,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:41,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:41,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:41,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:41,278 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 17:22:41,279 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 17:22:41,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:22:41,281 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:41,376 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:22:41,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:41,380 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:41,380 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:41,380 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:41,380 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:41,380 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:41,380 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,381 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:41,381 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:41,381 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:22:41,381 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:41,381 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:41,382 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 17:22:41,392 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 17:22:41,400 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 17:22:41,403 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 17:22:41,407 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 17:22:41,467 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:41,467 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:41,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:41,483 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 17:22:41,486 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 17:22:41,489 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 17:22:41,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:41,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:41,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:41,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:41,506 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:41,506 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:41,525 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:41,531 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 17:22:41,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:41,533 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 17:22:41,535 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 17:22:41,537 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 17:22:41,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:41,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:41,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:41,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:41,551 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:41,551 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:41,575 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:41,584 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:22:41,584 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-10-12 17:22:41,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:41,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:41,586 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 17:22:41,589 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 17:22:41,591 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:41,612 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:22:41,613 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:41,613 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, n) = -1*x2 + 1*n Supporting invariants [3*x2 - 2 >= 0] [2023-10-12 17:22:41,618 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 17:22:41,625 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:22:41,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:41,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:22:41,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:41,689 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:22:41,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:41,704 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 17:22:41,705 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 17:22:41,705 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 17:22:41,958 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 516 transitions. [2023-10-12 17:22:41,958 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:42,005 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:42,006 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 17:22:42,007 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 17:22:42,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 292 transitions. [2023-10-12 17:22:42,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 292 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:22:42,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:42,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 292 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:22:42,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:42,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 292 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:22:42,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:42,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 7240 transitions, 52944 flow [2023-10-12 17:22:42,339 INFO L124 PetriNetUnfolderBase]: 1314/1731 cut-off events. [2023-10-12 17:22:42,339 INFO L125 PetriNetUnfolderBase]: For 366/366 co-relation queries the response was YES. [2023-10-12 17:22:42,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5646 conditions, 1731 events. 1314/1731 cut-off events. For 366/366 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 5790 event pairs, 50 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 17:22:42,342 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 64 places, 7240 transitions, 52944 flow [2023-10-12 17:22:42,417 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 17:22:42,469 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 64 places, 7240 transitions, 52944 flow [2023-10-12 17:22:42,469 INFO L430 stractBuchiCegarLoop]: Abstraction has has 64 places, 7240 transitions, 52944 flow [2023-10-12 17:22:42,471 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:22:42,471 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 64 places, 7240 transitions, 52944 flow [2023-10-12 17:22:42,527 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:42,527 INFO L124 PetriNetUnfolderBase]: 204/280 cut-off events. [2023-10-12 17:22:42,527 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2023-10-12 17:22:42,528 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:42,528 INFO L748 eck$LassoCheckResult]: Stem: 46#[$Ultimate##0]true [62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[] 48#[L51]true [97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0] 50#[L18, L51-1]true [102] L18-->thread1EXIT: Formula: (<= v_n_9 v_x1_7) InVars {n=v_n_9, x1=v_x1_7} OutVars{n=v_n_9, x1=v_x1_7} AuxVars[] AssignedVars[] 186#[L51-1, thread1EXIT]true [88] L51-1-->L26: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0] 188#[L52, L26, thread1EXIT]true [91] L52-->L34: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2] 190#[L34, L26, L53, thread1EXIT]true [2023-10-12 17:22:42,528 INFO L750 eck$LassoCheckResult]: Loop: 190#[L34, L26, L53, thread1EXIT]true [109] L34-->L34: Formula: (and (= (* 2 v_x3_14) v_x3_13) (< v_x3_14 v_n_19)) InVars {n=v_n_19, x3=v_x3_14} OutVars{n=v_n_19, x3=v_x3_13} AuxVars[] AssignedVars[x3] 190#[L34, L26, L53, thread1EXIT]true [109] L34-->L34: Formula: (and (= (* 2 v_x3_14) v_x3_13) (< v_x3_14 v_n_19)) InVars {n=v_n_19, x3=v_x3_14} OutVars{n=v_n_19, x3=v_x3_13} AuxVars[] AssignedVars[x3] 190#[L34, L26, L53, thread1EXIT]true [2023-10-12 17:22:42,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:42,529 INFO L85 PathProgramCache]: Analyzing trace with hash 88878021, now seen corresponding path program 1 times [2023-10-12 17:22:42,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:42,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401006503] [2023-10-12 17:22:42,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:42,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:42,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:42,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:42,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:42,555 INFO L85 PathProgramCache]: Analyzing trace with hash 4449, now seen corresponding path program 1 times [2023-10-12 17:22:42,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:42,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94533273] [2023-10-12 17:22:42,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:42,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:42,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:42,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:42,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:42,570 INFO L85 PathProgramCache]: Analyzing trace with hash -487564251, now seen corresponding path program 1 times [2023-10-12 17:22:42,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:42,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249228455] [2023-10-12 17:22:42,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:42,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:42,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:42,580 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:42,661 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:42,662 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:42,662 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:42,662 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:42,662 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:22:42,662 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:42,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:42,662 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:42,662 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:22:42,662 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:42,662 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:42,663 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 17:22:42,669 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 17:22:42,672 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 17:22:42,674 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 17:22:42,684 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 17:22:42,686 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 17:22:42,688 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 17:22:42,756 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:42,757 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:22:42,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:42,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:42,758 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 17:22:42,771 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 17:22:42,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:42,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:42,793 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:42,793 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar0=0} Honda state: {thread2Thread1of1ForFork0_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:42,799 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 17:22:42,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:42,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:42,800 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 17:22:42,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:42,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:42,817 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 17:22:42,825 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:42,825 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar2=0} Honda state: {thread3Thread1of1ForFork1_thidvar2=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:42,833 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 17:22:42,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:42,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:42,835 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 17:22:42,837 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 17:22:42,839 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:42,839 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:42,852 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:42,852 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar1=0} Honda state: {thread2Thread1of1ForFork0_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:42,855 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 17:22:42,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:42,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:42,856 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 17:22:42,857 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 17:22:42,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:42,859 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:42,879 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 17:22:42,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:42,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:42,880 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 17:22:42,881 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 17:22:42,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:22:42,884 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:42,997 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:22:43,003 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 17:22:43,004 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:43,004 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:43,004 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:43,004 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:43,004 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:43,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,004 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:43,004 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:43,004 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:22:43,004 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:43,004 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:43,006 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 17:22:43,010 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 17:22:43,012 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 17:22:43,014 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 17:22:43,026 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 17:22:43,029 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 17:22:43,031 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 17:22:43,104 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:43,104 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:43,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:43,105 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 17:22:43,116 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 17:22:43,116 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 17:22:43,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:43,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:43,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:43,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:43,125 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:43,125 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:43,140 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:43,146 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 17:22:43,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:43,147 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 17:22:43,158 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 17:22:43,164 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 17:22:43,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:43,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:43,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:43,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:43,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:43,167 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:43,184 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:43,191 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 17:22:43,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:43,193 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 17:22:43,197 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 17:22:43,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:43,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:43,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:43,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:43,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:43,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:43,212 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 17:22:43,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:43,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:43,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:43,228 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 17:22:43,233 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 17:22:43,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:43,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:43,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:43,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:43,248 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:43,248 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:43,249 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 17:22:43,273 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:43,281 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:22:43,281 INFO L444 ModelExtractionUtils]: 13 out of 19 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:22:43,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:43,289 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 17:22:43,298 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:43,304 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 17:22:43,306 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:22:43,306 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:43,306 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x3) = 1*n - 1*x3 Supporting invariants [3*x3 - 2 >= 0] [2023-10-12 17:22:43,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-10-12 17:22:43,311 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:22:43,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:43,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2023-10-12 17:22:43,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:43,377 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:22:43,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:43,394 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 17:22:43,394 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 17:22:43,395 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. 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 17:22:43,614 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. 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) Result 10 states and 516 transitions. [2023-10-12 17:22:43,614 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:43,909 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 17:22:44,717 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:44,718 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 17:22:44,718 INFO L82 GeneralOperation]: Start removeUnreachable. 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 17:22:44,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 292 transitions. [2023-10-12 17:22:44,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 292 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:22:44,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:44,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 292 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:22:44,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:44,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 292 transitions. Stem has 5 letters. Loop has 4 letters. [2023-10-12 17:22:44,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:44,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 156520 transitions, 1461248 flow [2023-10-12 17:23:01,251 INFO L124 PetriNetUnfolderBase]: 3362/4374 cut-off events. [2023-10-12 17:23:01,251 INFO L125 PetriNetUnfolderBase]: For 943/943 co-relation queries the response was YES. [2023-10-12 17:23:01,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18565 conditions, 4374 events. 3362/4374 cut-off events. For 943/943 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 17008 event pairs, 34 based on Foata normal form. 0/2321 useless extension candidates. Maximal degree in co-relation 12844. Up to 1699 conditions per place. [2023-10-12 17:23:01,257 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 84 places, 156520 transitions, 1461248 flow [2023-10-12 17:23:02,678 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 84 places, 156520 transitions, 1461248 flow [2023-10-12 17:23:02,679 INFO L430 stractBuchiCegarLoop]: Abstraction has has 84 places, 156520 transitions, 1461248 flow [2023-10-12 17:23:02,679 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:23:02,679 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 84 places, 156520 transitions, 1461248 flow [2023-10-12 17:23:08,256 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:23:08,256 INFO L124 PetriNetUnfolderBase]: 843/1071 cut-off events. [2023-10-12 17:23:08,256 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2023-10-12 17:23:08,256 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:23:08,257 INFO L748 eck$LassoCheckResult]: Stem: 46#[$Ultimate##0]true [62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[] 48#[L51]true [97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0] 50#[L18, L51-1]true [88] L51-1-->L26: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0] 114#[L18, L52, L26]true [91] L52-->L34: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2] 269#[L18, L34, L26, L53]true [94] L53-->L42: Formula: (and (= 4 v_thread4Thread1of1ForFork2_thidvar2_2) (= 4 v_thread4Thread1of1ForFork2_thidvar3_2) (= 4 v_thread4Thread1of1ForFork2_thidvar1_2) (= 4 v_thread4Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread4Thread1of1ForFork2_thidvar3=v_thread4Thread1of1ForFork2_thidvar3_2, thread4Thread1of1ForFork2_thidvar0=v_thread4Thread1of1ForFork2_thidvar0_2, thread4Thread1of1ForFork2_thidvar2=v_thread4Thread1of1ForFork2_thidvar2_2, thread4Thread1of1ForFork2_thidvar1=v_thread4Thread1of1ForFork2_thidvar1_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork2_thidvar3, thread4Thread1of1ForFork2_thidvar0, thread4Thread1of1ForFork2_thidvar2, thread4Thread1of1ForFork2_thidvar1] 271#[L54, L42, L18, L34, L26]true [107] L42-->L42: Formula: (and (= v_x4_13 (* 2 v_x4_14)) (< v_x4_14 v_n_15)) InVars {n=v_n_15, x4=v_x4_14} OutVars{n=v_n_15, x4=v_x4_13} AuxVars[] AssignedVars[x4] 271#[L54, L42, L18, L34, L26]true [107] L42-->L42: Formula: (and (= v_x4_13 (* 2 v_x4_14)) (< v_x4_14 v_n_15)) InVars {n=v_n_15, x4=v_x4_14} OutVars{n=v_n_15, x4=v_x4_13} AuxVars[] AssignedVars[x4] 271#[L54, L42, L18, L34, L26]true [2023-10-12 17:23:08,257 INFO L750 eck$LassoCheckResult]: Loop: 271#[L54, L42, L18, L34, L26]true [107] L42-->L42: Formula: (and (= v_x4_13 (* 2 v_x4_14)) (< v_x4_14 v_n_15)) InVars {n=v_n_15, x4=v_x4_14} OutVars{n=v_n_15, x4=v_x4_13} AuxVars[] AssignedVars[x4] 271#[L54, L42, L18, L34, L26]true [107] L42-->L42: Formula: (and (= v_x4_13 (* 2 v_x4_14)) (< v_x4_14 v_n_15)) InVars {n=v_n_15, x4=v_x4_14} OutVars{n=v_n_15, x4=v_x4_13} AuxVars[] AssignedVars[x4] 271#[L54, L42, L18, L34, L26]true [2023-10-12 17:23:08,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:08,258 INFO L85 PathProgramCache]: Analyzing trace with hash -500401353, now seen corresponding path program 1 times [2023-10-12 17:23:08,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:08,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086841523] [2023-10-12 17:23:08,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:08,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:08,265 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:08,271 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:08,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:08,271 INFO L85 PathProgramCache]: Analyzing trace with hash 4385, now seen corresponding path program 1 times [2023-10-12 17:23:08,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:08,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793751362] [2023-10-12 17:23:08,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:08,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:08,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:08,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:08,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:08,276 INFO L85 PathProgramCache]: Analyzing trace with hash 150640343, now seen corresponding path program 2 times [2023-10-12 17:23:08,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:08,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497255977] [2023-10-12 17:23:08,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:08,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:08,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:08,291 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:08,428 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:23:08,428 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:23:08,428 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:23:08,428 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:23:08,428 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:23:08,428 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,428 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:23:08,428 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:23:08,428 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:23:08,428 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:23:08,429 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:23:08,432 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 17:23:08,435 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 17:23:08,439 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 17:23:08,441 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 17:23:08,443 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 17:23:08,445 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 17:23:08,447 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 17:23:08,457 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 17:23:08,458 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 17:23:08,463 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 17:23:08,465 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 17:23:08,467 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 17:23:08,576 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:23:08,576 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:23:08,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,581 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 17:23:08,588 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 17:23:08,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:08,590 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:08,597 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:08,597 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar2=0} Honda state: {thread3Thread1of1ForFork1_thidvar2=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:08,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-10-12 17:23:08,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,601 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:23:08,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-10-12 17:23:08,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:08,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:08,611 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:08,611 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar1=0} Honda state: {thread3Thread1of1ForFork1_thidvar1=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:08,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-10-12 17:23:08,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,614 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:23:08,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-10-12 17:23:08,618 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:08,618 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:08,624 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:08,624 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar0=0} Honda state: {thread3Thread1of1ForFork1_thidvar0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:08,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:08,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,632 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:23:08,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-10-12 17:23:08,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:08,635 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:08,642 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:08,642 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread4Thread1of1ForFork2_thidvar1=0} Honda state: {thread4Thread1of1ForFork2_thidvar1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:08,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:08,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,648 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:23:08,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-10-12 17:23:08,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:08,651 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:08,658 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:08,658 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread4Thread1of1ForFork2_thidvar0=0} Honda state: {thread4Thread1of1ForFork2_thidvar0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:08,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:08,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,662 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:23:08,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-10-12 17:23:08,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:08,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:08,673 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:08,673 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork3_thidvar0=0} Honda state: {thread1Thread1of1ForFork3_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:08,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:08,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,677 INFO L229 MonitoredProcess]: Starting monitored process 31 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 17:23:08,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-10-12 17:23:08,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:08,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:08,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-10-12 17:23:08,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,696 INFO L229 MonitoredProcess]: Starting monitored process 32 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 17:23:08,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-10-12 17:23:08,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:23:08,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:08,745 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:23:08,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-10-12 17:23:08,748 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:23:08,748 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:23:08,748 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:23:08,748 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:23:08,748 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:23:08,748 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,748 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:23:08,749 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:23:08,749 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:23:08,749 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:23:08,749 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:23:08,750 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 17:23:08,753 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 17:23:08,754 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 17:23:08,761 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 17:23:08,764 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 17:23:08,766 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 17:23:08,768 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 17:23:08,779 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 17:23:08,782 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 17:23:08,784 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 17:23:08,787 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 17:23:08,789 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 17:23:08,874 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:23:08,874 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:23:08,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,876 INFO L229 MonitoredProcess]: Starting monitored process 33 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 17:23:08,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-10-12 17:23:08,879 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 17:23:08,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:08,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:08,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:08,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:08,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:08,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:08,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:08,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-10-12 17:23:08,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,896 INFO L229 MonitoredProcess]: Starting monitored process 34 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 17:23:08,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-10-12 17:23:08,899 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 17:23:08,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:08,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:08,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:08,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:08,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:08,907 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:08,921 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:08,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-10-12 17:23:08,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,925 INFO L229 MonitoredProcess]: Starting monitored process 35 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 17:23:08,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-10-12 17:23:08,929 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 17:23:08,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:08,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:08,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:08,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:08,936 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:08,936 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:08,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:08,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-10-12 17:23:08,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,941 INFO L229 MonitoredProcess]: Starting monitored process 36 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 17:23:08,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-10-12 17:23:08,944 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 17:23:08,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:08,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:08,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:08,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:08,951 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:08,951 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:08,953 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:08,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:08,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,959 INFO L229 MonitoredProcess]: Starting monitored process 37 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 17:23:08,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-10-12 17:23:08,962 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 17:23:08,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:08,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:08,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:08,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:08,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:08,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:08,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:08,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:08,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,982 INFO L229 MonitoredProcess]: Starting monitored process 38 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 17:23:08,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-10-12 17:23:08,985 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 17:23:08,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:08,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:08,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:08,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:08,992 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:08,992 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:08,997 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:08,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:09,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:09,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:09,000 INFO L229 MonitoredProcess]: Starting monitored process 39 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 17:23:09,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-10-12 17:23:09,004 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 17:23:09,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:09,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:09,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:09,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:09,012 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:09,012 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:09,019 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:23:09,025 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-10-12 17:23:09,025 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-10-12 17:23:09,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:09,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:09,026 INFO L229 MonitoredProcess]: Starting monitored process 40 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 17:23:09,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-10-12 17:23:09,029 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:23:09,035 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:23:09,035 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:23:09,035 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x4, n) = -1*x4 + 1*n Supporting invariants [3*x4 - 2 >= 0] [2023-10-12 17:23:09,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2023-10-12 17:23:09,040 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:23:09,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:23:09,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:23:09,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:23:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:23:09,125 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:23:09,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:23:09,139 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 17:23:09,140 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 17:23:09,140 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:23:09,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:09,447 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 564 transitions. [2023-10-12 17:23:09,447 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:25:08,695 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:25:08,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2023-10-12 17:25:08,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:25:08,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 340 transitions. [2023-10-12 17:25:08,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 340 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:25:08,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:08,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 340 transitions. Stem has 9 letters. Loop has 2 letters. [2023-10-12 17:25:08,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:08,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 340 transitions. Stem has 7 letters. Loop has 4 letters. [2023-10-12 17:25:08,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:08,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 3705744 transitions, 42075552 flow