/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/exp2x6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:22:41,717 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:22:41,762 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 17:22:41,777 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:22:41,777 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:22:41,777 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:22:41,778 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:22:41,778 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:22:41,779 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:22:41,779 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:22:41,779 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:22:41,779 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:22:41,780 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:22:41,780 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:22:41,780 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:22:41,780 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:22:41,781 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:22:41,781 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:22:41,781 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:22:41,782 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:22:41,782 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:22:41,782 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:22:41,783 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:22:41,783 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:22:41,783 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:22:41,783 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:22:41,784 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:22:41,784 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:22:41,784 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:22:41,784 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:22:41,785 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:22:41,785 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:22:41,785 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:22:41,786 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:22:41,786 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:22:41,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:22:42,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:22:42,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:22:42,006 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:22:42,008 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:22:42,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl [2023-10-12 17:22:42,009 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl' [2023-10-12 17:22:42,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:22:42,027 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:22:42,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:22:42,028 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:22:42,028 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:22:42,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,045 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:22:42,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:22:42,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:22:42,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:22:42,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:22:42,054 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,059 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,063 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:22:42,067 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:22:42,067 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:22:42,067 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:22:42,067 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:42,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:42,118 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 17:22:42,122 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 17:22:42,158 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:22:42,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:22:42,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:22:42,158 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:22:42,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:22:42,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:22:42,158 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:22:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:22:42,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:22:42,159 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:22:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:22:42,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:22:42,159 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:22:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:22:42,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:22:42,160 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 17:22:42,194 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:22:42,196 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:22:42,338 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:22:42,342 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:22:42,343 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:22:42,344 INFO L201 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:22:42 BoogieIcfgContainer [2023-10-12 17:22:42,346 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:22:42,347 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:22:42,347 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:22:42,351 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:22:42,351 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:22:42,351 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/2) ... [2023-10-12 17:22:42,352 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63e0d484 and model type exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:22:42, skipping insertion in model container [2023-10-12 17:22:42,352 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:22:42,352 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:22:42" (2/2) ... [2023-10-12 17:22:42,353 INFO L332 chiAutomizerObserver]: Analyzing ICFG exp2x6.wvr.bpl [2023-10-12 17:22:42,458 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:22:42,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 49 transitions, 130 flow [2023-10-12 17:22:42,513 INFO L124 PetriNetUnfolderBase]: 4/41 cut-off events. [2023-10-12 17:22:42,513 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:22:42,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 41 events. 4/41 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 107 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-10-12 17:22:42,518 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 49 transitions, 130 flow [2023-10-12 17:22:42,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 41 transitions, 106 flow [2023-10-12 17:22:42,528 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:22:42,545 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 41 transitions, 106 flow [2023-10-12 17:22:42,548 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 41 transitions, 106 flow [2023-10-12 17:22:42,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 41 transitions, 106 flow [2023-10-12 17:22:42,555 INFO L124 PetriNetUnfolderBase]: 4/41 cut-off events. [2023-10-12 17:22:42,555 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:22:42,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 41 events. 4/41 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 107 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-10-12 17:22:42,556 INFO L119 LiptonReduction]: Number of co-enabled transitions 756 [2023-10-12 17:22:42,822 INFO L134 LiptonReduction]: Checked pairs total: 588 [2023-10-12 17:22:42,823 INFO L136 LiptonReduction]: Total number of compositions: 23 [2023-10-12 17:22:42,831 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:22:42,832 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:22:42,832 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:22:42,832 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:22:42,832 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:22:42,832 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:22:42,832 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:22:42,832 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:22:42,833 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:22:42,835 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:42,835 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:22:42,835 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:22:42,835 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:42,837 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:22:42,837 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:22:42,838 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:42,838 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:22:42,838 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:22:42,838 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:42,841 INFO L748 eck$LassoCheckResult]: Stem: 58#[$Ultimate##0]true [86] $Ultimate##0-->L63: Formula: (and (< 0 v_x3_1) (< 0 v_x1_11) (= v_x1_11 v_x2_11) (= v_x4_1 v_x3_1)) InVars {x1=v_x1_11, x4=v_x4_1, x2=v_x2_11, x3=v_x3_1} OutVars{x1=v_x1_11, x4=v_x4_1, x2=v_x2_11, x3=v_x3_1} AuxVars[] AssignedVars[] 60#[L63]true [124] L63-->L18: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 62#[L18, L63-1]true [2023-10-12 17:22:42,841 INFO L750 eck$LassoCheckResult]: Loop: 62#[L18, L63-1]true [159] L18-->L18: Formula: (and (= v_x1_35 (* 16 v_x1_37)) (< v_x1_37 v_n_33)) InVars {n=v_n_33, x1=v_x1_37} OutVars{n=v_n_33, x1=v_x1_35} AuxVars[] AssignedVars[x1] 62#[L18, L63-1]true [2023-10-12 17:22:42,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:42,845 INFO L85 PathProgramCache]: Analyzing trace with hash 3751, now seen corresponding path program 1 times [2023-10-12 17:22:42,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:42,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004910877] [2023-10-12 17:22:42,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:42,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:42,946 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:42,959 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:42,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:42,961 INFO L85 PathProgramCache]: Analyzing trace with hash 190, now seen corresponding path program 1 times [2023-10-12 17:22:42,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:42,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915589349] [2023-10-12 17:22:42,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:42,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:42,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:42,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:42,970 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:42,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:42,971 INFO L85 PathProgramCache]: Analyzing trace with hash 116440, now seen corresponding path program 1 times [2023-10-12 17:22:42,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:42,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45094034] [2023-10-12 17:22:42,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:42,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:42,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:42,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:43,023 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:43,024 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:43,024 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:43,024 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:43,024 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:22:43,024 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,024 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:43,024 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:43,024 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x6.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:22:43,024 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:43,024 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:43,033 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 17:22:43,041 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 17:22:43,047 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 17:22:43,082 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:43,083 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:22:43,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:43,085 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 17:22:43,086 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 17:22:43,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:43,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:43,107 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:43,107 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x3=4, x4=4} Honda state: {x3=4, x4=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:43,114 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 17:22:43,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:43,117 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 17:22:43,118 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 17:22:43,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:43,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:43,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-10-12 17:22:43,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:43,145 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 17:22:43,145 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 17:22:43,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:22:43,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:43,246 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:22:43,251 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 17:22:43,252 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:43,252 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:43,252 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:43,252 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:43,252 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:43,252 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,252 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:43,252 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:43,252 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x6.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:22:43,252 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:43,252 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:43,253 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 17:22:43,258 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 17:22:43,265 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 17:22:43,301 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:43,304 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:43,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:43,322 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 17:22:43,345 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 17:22:43,346 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 17:22:43,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:43,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:43,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:43,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:43,356 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:43,356 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:43,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:43,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-10-12 17:22:43,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:43,371 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 17:22:43,373 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 17:22:43,375 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 17:22:43,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:43,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:43,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:43,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:43,385 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:43,386 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:43,405 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:43,421 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:22:43,422 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:22:43,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:43,436 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 17:22:43,438 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 17:22:43,439 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:43,448 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:22:43,448 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:43,449 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, n) = -1*x1 + 1*n Supporting invariants [15*x1 - 2 >= 0] [2023-10-12 17:22:43,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-10-12 17:22:43,458 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:22:43,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:43,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 3 conjunts are in the unsatisfiable core [2023-10-12 17:22:43,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:43,503 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:22:43,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:43,503 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 17:22:43,532 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 17:22:43,533 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 17:22:43,765 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 637 transitions. [2023-10-12 17:22:43,766 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:43,768 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:43,769 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 17:22:43,772 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 17:22:43,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 364 transitions. [2023-10-12 17:22:43,776 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 364 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:22:43,776 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:43,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 364 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:22:43,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:43,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 364 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:22:43,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:43,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:43,816 INFO L124 PetriNetUnfolderBase]: 431/583 cut-off events. [2023-10-12 17:22:43,816 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2023-10-12 17:22:43,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1327 conditions, 583 events. 431/583 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1628 event pairs, 44 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 17:22:43,817 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:43,821 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:43,821 INFO L430 stractBuchiCegarLoop]: Abstraction has has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:43,821 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:22:43,821 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:43,833 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:43,833 INFO L124 PetriNetUnfolderBase]: 28/43 cut-off events. [2023-10-12 17:22:43,833 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-10-12 17:22:43,833 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:43,836 INFO L748 eck$LassoCheckResult]: Stem: 58#[$Ultimate##0]true [86] $Ultimate##0-->L63: Formula: (and (< 0 v_x3_1) (< 0 v_x1_11) (= v_x1_11 v_x2_11) (= v_x4_1 v_x3_1)) InVars {x1=v_x1_11, x4=v_x4_1, x2=v_x2_11, x3=v_x3_1} OutVars{x1=v_x1_11, x4=v_x4_1, x2=v_x2_11, x3=v_x3_1} AuxVars[] AssignedVars[] 60#[L63]true [124] L63-->L18: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 62#[L18, L63-1]true [127] L63-1-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 126#[L64, L18, L29]true [2023-10-12 17:22:43,836 INFO L750 eck$LassoCheckResult]: Loop: 126#[L64, L18, L29]true [158] L29-->L29: Formula: (and (< v_x2_37 v_n_31) (= (* 16 v_x2_37) v_x2_35)) InVars {n=v_n_31, x2=v_x2_37} OutVars{n=v_n_31, x2=v_x2_35} AuxVars[] AssignedVars[x2] 126#[L64, L18, L29]true [158] L29-->L29: Formula: (and (< v_x2_37 v_n_31) (= (* 16 v_x2_37) v_x2_35)) InVars {n=v_n_31, x2=v_x2_37} OutVars{n=v_n_31, x2=v_x2_35} AuxVars[] AssignedVars[x2] 126#[L64, L18, L29]true [2023-10-12 17:22:43,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:43,836 INFO L85 PathProgramCache]: Analyzing trace with hash 116408, now seen corresponding path program 1 times [2023-10-12 17:22:43,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:43,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378815074] [2023-10-12 17:22:43,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:43,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:43,845 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:43,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:43,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:43,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:43,851 INFO L85 PathProgramCache]: Analyzing trace with hash 6017, now seen corresponding path program 1 times [2023-10-12 17:22:43,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:43,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535944843] [2023-10-12 17:22:43,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:43,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:43,854 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:43,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:43,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:43,857 INFO L85 PathProgramCache]: Analyzing trace with hash 111873144, now seen corresponding path program 1 times [2023-10-12 17:22:43,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:43,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372456063] [2023-10-12 17:22:43,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:43,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:43,862 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:43,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:43,914 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:43,915 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:43,915 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:43,915 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:43,915 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:22:43,915 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,915 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:43,915 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:43,915 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x6.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:22:43,915 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:43,915 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:43,916 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:43,926 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 17:22:43,929 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 17:22:43,931 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 17:22:43,934 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 17:22:43,977 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:43,977 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:22:43,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:43,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:43,995 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 17:22:44,029 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 17:22:44,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:44,030 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:44,061 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 17:22:44,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:44,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:44,063 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 17:22:44,072 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 17:22:44,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:22:44,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:45,075 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:22:45,079 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 17:22:45,079 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:45,080 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:45,080 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:45,080 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:45,080 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:45,080 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:45,080 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:45,080 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:45,080 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x6.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:22:45,080 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:45,080 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:45,081 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 17:22:45,089 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 17:22:45,091 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 17:22:45,093 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 17:22:45,097 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 17:22:45,147 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:45,147 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:45,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:45,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:45,148 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 17:22:45,150 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 17:22:45,152 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 17:22:45,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:45,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:45,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:45,158 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:45,162 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:45,162 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:45,185 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:45,204 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:22:45,204 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:22:45,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:45,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:45,235 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 17:22:45,257 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 17:22:45,257 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:45,289 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:22:45,289 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:45,289 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, n) = -1*x2 + 1*n Supporting invariants [255*x2 - 2 >= 0] [2023-10-12 17:22:45,305 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 17:22:45,307 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:22:45,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:45,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:22:45,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:45,349 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:22:45,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:45,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:22:45,364 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 17:22:45,364 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 17:22:45,595 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 8 states and 639 transitions. [2023-10-12 17:22:45,595 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:45,636 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:45,649 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 17:22:45,649 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 17:22:45,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 364 transitions. [2023-10-12 17:22:45,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 364 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:22:45,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:45,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 364 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:22:45,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:45,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 364 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:22:45,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:45,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 5960 transitions, 43536 flow [2023-10-12 17:22:46,064 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 17:22:46,128 INFO L124 PetriNetUnfolderBase]: 1314/1731 cut-off events. [2023-10-12 17:22:46,128 INFO L125 PetriNetUnfolderBase]: For 369/369 co-relation queries the response was YES. [2023-10-12 17:22:46,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5646 conditions, 1731 events. 1314/1731 cut-off events. For 369/369 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5825 event pairs, 78 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 17:22:46,132 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 60 places, 5960 transitions, 43536 flow [2023-10-12 17:22:46,243 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 60 places, 5960 transitions, 43536 flow [2023-10-12 17:22:46,244 INFO L430 stractBuchiCegarLoop]: Abstraction has has 60 places, 5960 transitions, 43536 flow [2023-10-12 17:22:46,244 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:22:46,244 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 places, 5960 transitions, 43536 flow [2023-10-12 17:22:46,333 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:46,333 INFO L124 PetriNetUnfolderBase]: 203/279 cut-off events. [2023-10-12 17:22:46,333 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2023-10-12 17:22:46,333 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:46,334 INFO L748 eck$LassoCheckResult]: Stem: 58#[$Ultimate##0]true [86] $Ultimate##0-->L63: Formula: (and (< 0 v_x3_1) (< 0 v_x1_11) (= v_x1_11 v_x2_11) (= v_x4_1 v_x3_1)) InVars {x1=v_x1_11, x4=v_x4_1, x2=v_x2_11, x3=v_x3_1} OutVars{x1=v_x1_11, x4=v_x4_1, x2=v_x2_11, x3=v_x3_1} AuxVars[] AssignedVars[] 60#[L63]true [124] L63-->L18: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 62#[L18, L63-1]true [144] L18-->thread1EXIT: Formula: (<= v_n_11 v_x1_19) InVars {n=v_n_11, x1=v_x1_19} OutVars{n=v_n_11, x1=v_x1_19} AuxVars[] AssignedVars[] 193#[L63-1, thread1EXIT]true [127] L63-1-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 195#[L64, thread1EXIT, L29]true [130] L64-->L40: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 197#[L40, L29, thread1EXIT, L65]true [2023-10-12 17:22:46,334 INFO L750 eck$LassoCheckResult]: Loop: 197#[L40, L29, thread1EXIT, L65]true [157] L40-->L40: Formula: (and (= v_x3_35 (* 16 v_x3_37)) (< v_x3_37 v_n_29)) InVars {n=v_n_29, x3=v_x3_37} OutVars{n=v_n_29, x3=v_x3_35} AuxVars[] AssignedVars[x3] 197#[L40, L29, thread1EXIT, L65]true [157] L40-->L40: Formula: (and (= v_x3_35 (* 16 v_x3_37)) (< v_x3_37 v_n_29)) InVars {n=v_n_29, x3=v_x3_37} OutVars{n=v_n_29, x3=v_x3_35} AuxVars[] AssignedVars[x3] 197#[L40, L29, thread1EXIT, L65]true [2023-10-12 17:22:46,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:46,334 INFO L85 PathProgramCache]: Analyzing trace with hash 111888492, now seen corresponding path program 1 times [2023-10-12 17:22:46,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:46,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667620543] [2023-10-12 17:22:46,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:46,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:46,352 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:46,355 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:46,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:46,356 INFO L85 PathProgramCache]: Analyzing trace with hash 5985, now seen corresponding path program 1 times [2023-10-12 17:22:46,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:46,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782536275] [2023-10-12 17:22:46,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:46,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:46,362 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:46,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:46,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:46,364 INFO L85 PathProgramCache]: Analyzing trace with hash 150663436, now seen corresponding path program 1 times [2023-10-12 17:22:46,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:46,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564880466] [2023-10-12 17:22:46,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:46,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:46,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:46,386 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:46,464 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:46,465 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:46,465 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:46,465 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:46,465 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:22:46,465 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:46,465 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:46,465 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:46,465 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x6.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:22:46,465 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:46,465 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:46,466 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 17:22:46,468 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 17:22:46,470 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 17:22:46,472 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 17:22:46,474 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 17:22:46,484 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 17:22:46,486 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 17:22:46,553 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:46,554 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:22:46,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:46,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:46,566 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 17:22:46,593 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 17:22:46,594 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:46,594 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:46,609 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:46,609 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:46,612 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 17:22:46,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:46,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:46,614 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 17:22:46,638 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 17:22:46,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:46,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:46,649 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:46,649 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar0=0} Honda state: {thread2Thread1of1ForFork1_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:46,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-10-12 17:22:46,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:46,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:46,655 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 17:22:46,657 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 17:22:46,659 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:46,659 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:46,666 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:46,666 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork2_thidvar0=0} Honda state: {thread3Thread1of1ForFork2_thidvar0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:46,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-10-12 17:22:46,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:46,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:46,672 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 17:22:46,673 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 17:22:46,675 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:46,675 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:46,702 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:46,702 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar1=0} Honda state: {thread2Thread1of1ForFork1_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:22:46,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-10-12 17:22:46,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:46,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:46,709 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 17:22:46,730 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 17:22:46,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:46,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:46,769 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 17:22:46,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:46,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:46,771 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 17:22:46,774 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 17:22:46,774 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:22:46,774 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:47,541 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:22:47,546 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 17:22:47,546 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:47,546 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:47,546 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:47,546 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:47,546 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:47,546 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:47,547 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:47,547 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:47,547 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x6.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:22:47,547 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:47,547 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:47,548 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:47,562 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 17:22:47,564 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 17:22:47,566 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:47,576 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 17:22:47,578 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 17:22:47,580 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 17:22:47,649 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:47,649 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:47,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:47,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:47,662 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 17:22:47,663 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 17:22:47,664 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 17:22:47,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:47,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:47,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:47,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:47,672 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:47,672 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:47,693 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:47,697 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 17:22:47,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:47,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:47,709 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 17:22:47,712 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 17:22:47,714 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 17:22:47,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:47,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:47,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:47,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:47,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:47,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:47,734 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:47,755 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 17:22:47,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:47,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:47,756 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 17:22:47,762 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 17:22:47,762 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 17:22:47,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:47,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:47,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:47,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:47,769 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:47,769 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:47,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:47,790 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 17:22:47,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:47,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:47,791 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 17:22:47,841 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 17:22:47,842 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 17:22:47,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:47,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:47,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:47,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:47,853 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:47,853 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:47,865 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:47,871 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:22:47,871 INFO L444 ModelExtractionUtils]: 11 out of 19 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-10-12 17:22:47,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:47,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:47,872 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 17:22:47,873 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 17:22:47,876 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:47,886 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:22:47,886 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:47,886 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x3) = 1*n - 1*x3 Supporting invariants [255*x3 - 2 >= 0] [2023-10-12 17:22:47,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-10-12 17:22:47,902 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:22:47,917 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:47,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2023-10-12 17:22:47,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:47,943 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:22:47,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:47,954 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 17:22:47,954 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 17:22:47,955 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 17:22:48,022 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 17:22:48,217 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 8 states and 639 transitions. [2023-10-12 17:22:48,218 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:48,982 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:48,983 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 17:22:48,984 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 17:22:48,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 364 transitions. [2023-10-12 17:22:48,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 364 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:22:48,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:48,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 364 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:22:48,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:48,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 364 transitions. Stem has 5 letters. Loop has 4 letters. [2023-10-12 17:22:48,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:48,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 106000 transitions, 987968 flow [2023-10-12 17:22:58,500 INFO L124 PetriNetUnfolderBase]: 3362/4374 cut-off events. [2023-10-12 17:22:58,500 INFO L125 PetriNetUnfolderBase]: For 958/958 co-relation queries the response was YES. [2023-10-12 17:22:58,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18565 conditions, 4374 events. 3362/4374 cut-off events. For 958/958 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 17147 event pairs, 116 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 17:22:58,505 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 76 places, 106000 transitions, 987968 flow [2023-10-12 17:22:59,448 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 76 places, 106000 transitions, 987968 flow [2023-10-12 17:22:59,449 INFO L430 stractBuchiCegarLoop]: Abstraction has has 76 places, 106000 transitions, 987968 flow [2023-10-12 17:22:59,449 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:22:59,449 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 76 places, 106000 transitions, 987968 flow [2023-10-12 17:23:02,982 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:23:02,982 INFO L124 PetriNetUnfolderBase]: 850/1080 cut-off events. [2023-10-12 17:23:02,982 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2023-10-12 17:23:02,982 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:23:02,983 INFO L748 eck$LassoCheckResult]: Stem: 58#[$Ultimate##0]true [86] $Ultimate##0-->L63: Formula: (and (< 0 v_x3_1) (< 0 v_x1_11) (= v_x1_11 v_x2_11) (= v_x4_1 v_x3_1)) InVars {x1=v_x1_11, x4=v_x4_1, x2=v_x2_11, x3=v_x3_1} OutVars{x1=v_x1_11, x4=v_x4_1, x2=v_x2_11, x3=v_x3_1} AuxVars[] AssignedVars[] 60#[L63]true [124] L63-->L18: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 62#[L18, L63-1]true [127] L63-1-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 126#[L64, L18, L29]true [130] L64-->L40: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 271#[L18, L40, L29, L65]true [133] L65-->L51: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2] 273#[L66, L18, L40, L51, L29]true [160] L51-->L51: Formula: (and (< v_x4_37 v_n_35) (= (* 16 v_x4_37) v_x4_35)) InVars {n=v_n_35, x4=v_x4_37} OutVars{n=v_n_35, x4=v_x4_35} AuxVars[] AssignedVars[x4] 273#[L66, L18, L40, L51, L29]true [160] L51-->L51: Formula: (and (< v_x4_37 v_n_35) (= (* 16 v_x4_37) v_x4_35)) InVars {n=v_n_35, x4=v_x4_37} OutVars{n=v_n_35, x4=v_x4_35} AuxVars[] AssignedVars[x4] 273#[L66, L18, L40, L51, L29]true [2023-10-12 17:23:02,983 INFO L750 eck$LassoCheckResult]: Loop: 273#[L66, L18, L40, L51, L29]true [160] L51-->L51: Formula: (and (< v_x4_37 v_n_35) (= (* 16 v_x4_37) v_x4_35)) InVars {n=v_n_35, x4=v_x4_37} OutVars{n=v_n_35, x4=v_x4_35} AuxVars[] AssignedVars[x4] 273#[L66, L18, L40, L51, L29]true [160] L51-->L51: Formula: (and (< v_x4_37 v_n_35) (= (* 16 v_x4_37) v_x4_35)) InVars {n=v_n_35, x4=v_x4_37} OutVars{n=v_n_35, x4=v_x4_35} AuxVars[] AssignedVars[x4] 273#[L66, L18, L40, L51, L29]true [2023-10-12 17:23:02,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:02,983 INFO L85 PathProgramCache]: Analyzing trace with hash 135055931, now seen corresponding path program 1 times [2023-10-12 17:23:02,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:02,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149468705] [2023-10-12 17:23:02,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:02,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:02,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:02,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:02,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:02,993 INFO L85 PathProgramCache]: Analyzing trace with hash 6081, now seen corresponding path program 1 times [2023-10-12 17:23:02,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:02,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431324497] [2023-10-12 17:23:02,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:02,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:02,995 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:02,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:02,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:02,997 INFO L85 PathProgramCache]: Analyzing trace with hash 939735931, now seen corresponding path program 2 times [2023-10-12 17:23:02,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:02,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984776850] [2023-10-12 17:23:02,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:02,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:03,002 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:03,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:03,121 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:23:03,121 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:23:03,121 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:23:03,121 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:23:03,121 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:23:03,122 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:03,122 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:23:03,122 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:23:03,122 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x6.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:23:03,122 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:23:03,122 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:23:03,123 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 17:23:03,125 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 17:23:03,129 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 17:23:03,131 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 17:23:03,132 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 17:23:03,135 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 17:23:03,137 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 17:23:03,138 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 17:23:03,140 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 17:23:03,156 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 17:23:03,159 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 17:23:03,161 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:23:03,249 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:23:03,250 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:23:03,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:03,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:03,251 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 17:23:03,254 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 17:23:03,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:03,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:03,265 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:03,266 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork2_thidvar1=0} Honda state: {thread3Thread1of1ForFork2_thidvar1=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:03,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:03,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:03,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:03,271 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 17:23:03,273 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 17:23:03,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:03,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:03,286 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:03,286 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x1=4, x2=4} Honda state: {x1=4, x2=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:03,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-10-12 17:23:03,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:03,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:03,290 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 17:23:03,292 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 17:23:03,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:03,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:03,314 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:03,314 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork2_thidvar0=0} Honda state: {thread3Thread1of1ForFork2_thidvar0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:03,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:03,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:03,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:03,320 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 17:23:03,321 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 17:23:03,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:03,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:03,331 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:03,331 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork2_thidvar2=0} Honda state: {thread3Thread1of1ForFork2_thidvar2=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:03,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:03,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:03,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:03,335 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 17:23:03,336 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 17:23:03,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:03,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:03,345 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:03,345 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:03,350 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 17:23:03,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:03,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:03,351 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 17:23:03,353 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 17:23:03,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:03,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:03,371 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:03,372 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread4Thread1of1ForFork3_thidvar0=0} Honda state: {thread4Thread1of1ForFork3_thidvar0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:03,376 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 17:23:03,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:03,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:03,377 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 17:23:03,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:03,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:03,397 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 17:23:03,405 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:03,405 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar1=0} Honda state: {thread2Thread1of1ForFork1_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:03,407 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 17:23:03,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:03,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:03,408 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 17:23:03,410 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 17:23:03,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:03,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:03,432 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:03,432 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar0=0} Honda state: {thread2Thread1of1ForFork1_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:03,434 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 17:23:03,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:03,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:03,436 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 17:23:03,438 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 17:23:03,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:03,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:03,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:03,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:03,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:03,455 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 17:23:03,456 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 17:23:03,458 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:23:03,458 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:03,884 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:23:03,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:03,890 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:23:03,890 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:23:03,890 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:23:03,890 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:23:03,890 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:23:03,890 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:03,891 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:23:03,891 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:23:03,891 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x6.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:23:03,891 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:23:03,891 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:23:03,892 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 17:23:03,903 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 17:23:03,905 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 17:23:03,907 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 17:23:03,909 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 17:23:03,911 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:23:03,913 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:23:03,914 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 17:23:03,916 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:23:03,926 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 17:23:03,928 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 17:23:03,930 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 17:23:04,011 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:23:04,011 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:23:04,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:04,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:04,029 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 17:23:04,031 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 17:23:04,033 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 17:23:04,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:04,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:04,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:04,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:04,040 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:04,040 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:04,056 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:04,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:04,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:04,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:04,059 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 17:23:04,060 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 17:23:04,064 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 17:23:04,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:04,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:04,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:04,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:04,073 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:04,073 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:04,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:04,082 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 17:23:04,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:04,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:04,083 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 17:23:04,085 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 17:23:04,086 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 17:23:04,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:04,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:04,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:04,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:04,095 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:04,095 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:04,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:04,102 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 17:23:04,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:04,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:04,103 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 17:23:04,104 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 17:23:04,106 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 17:23:04,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:04,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:04,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:04,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:04,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:04,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:04,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:04,121 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 17:23:04,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:04,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:04,122 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 17:23:04,124 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 17:23:04,125 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 17:23:04,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:04,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:04,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:04,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:04,134 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:04,134 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:04,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:04,138 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 17:23:04,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:04,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:04,139 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 17:23:04,140 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 17:23:04,142 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 17:23:04,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:04,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:04,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:04,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:04,150 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:04,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:04,159 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:04,161 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 17:23:04,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:04,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:04,163 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 17:23:04,164 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 17:23:04,166 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 17:23:04,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:04,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:04,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:04,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:04,174 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:04,174 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:04,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:04,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:04,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:04,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:04,215 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 17:23:04,218 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 17:23:04,219 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 17:23:04,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:04,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:04,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:04,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:04,232 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:04,232 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:04,234 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:04,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2023-10-12 17:23:04,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:04,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:04,240 INFO L229 MonitoredProcess]: Starting monitored process 41 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 17:23:04,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-10-12 17:23:04,243 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 17:23:04,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:04,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:04,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:04,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:04,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:04,251 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:04,267 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:23:04,273 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:23:04,273 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-10-12 17:23:04,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:04,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:04,281 INFO L229 MonitoredProcess]: Starting monitored process 42 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 17:23:04,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-10-12 17:23:04,284 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:23:04,296 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:23:04,296 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:23:04,296 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x4, n) = -1*x4 + 1*n Supporting invariants [255*x4 - 2 >= 0] [2023-10-12 17:23:04,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:04,309 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:23:04,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:23:04,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:23:04,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:23:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:23:04,377 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:23:04,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:23:04,389 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 17:23:04,390 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 17:23:04,390 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 17:23:04,604 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 8 states and 637 transitions. [2023-10-12 17:23:04,605 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:23:38,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:41,450 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:23:41,451 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 17:23:41,452 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 17:23:41,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 364 transitions. [2023-10-12 17:23:41,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 364 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:23:41,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:41,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 364 transitions. Stem has 9 letters. Loop has 2 letters. [2023-10-12 17:23:41,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:41,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 364 transitions. Stem has 7 letters. Loop has 4 letters. [2023-10-12 17:23:41,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:41,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 1889696 transitions, 21416384 flow Received shutdown request... [2023-10-12 17:25:51,934 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-10-12 17:25:52,129 WARN L144 chiPetriNetCegarLoop]: Unhandled de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user.occured during abstraction size reduction. Continuing with non-reduced net [2023-10-12 17:25:52,129 INFO L430 stractBuchiCegarLoop]: Abstraction has has 92 places, 1889696 transitions, 21416384 flow [2023-10-12 17:25:52,129 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:25:52,129 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 92 places, 1889696 transitions, 21416384 flow [2023-10-12 17:25:52,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 [2023-10-12 17:25:52,989 WARN L343 stractBuchiCegarLoop]: Verification cancelled [2023-10-12 17:25:52,995 INFO L201 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:25:52 BoogieIcfgContainer [2023-10-12 17:25:52,995 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:25:52,995 INFO L158 Benchmark]: Toolchain (without parser) took 190967.94ms. Allocated memory was 172.0MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 119.7MB in the beginning and 1.1GB in the end (delta: -953.8MB). Peak memory consumption was 5.8GB. Max. memory is 8.0GB. [2023-10-12 17:25:52,996 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.26ms. Allocated memory is still 172.0MB. Free memory is still 120.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:25:52,996 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.28ms. Allocated memory is still 172.0MB. Free memory was 119.7MB in the beginning and 118.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:25:52,997 INFO L158 Benchmark]: Boogie Preprocessor took 18.41ms. Allocated memory is still 172.0MB. Free memory was 118.1MB in the beginning and 117.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:25:52,997 INFO L158 Benchmark]: RCFGBuilder took 279.14ms. Allocated memory is still 172.0MB. Free memory was 117.0MB in the beginning and 138.0MB in the end (delta: -21.0MB). Peak memory consumption was 16.1MB. Max. memory is 8.0GB. [2023-10-12 17:25:52,997 INFO L158 Benchmark]: BuchiAutomizer took 190647.92ms. Allocated memory was 172.0MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 137.8MB in the beginning and 1.1GB in the end (delta: -935.7MB). Peak memory consumption was 5.8GB. Max. memory is 8.0GB. [2023-10-12 17:25:53,003 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.26ms. Allocated memory is still 172.0MB. Free memory is still 120.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.28ms. Allocated memory is still 172.0MB. Free memory was 119.7MB in the beginning and 118.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.41ms. Allocated memory is still 172.0MB. Free memory was 118.1MB in the beginning and 117.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 279.14ms. Allocated memory is still 172.0MB. Free memory was 117.0MB in the beginning and 138.0MB in the end (delta: -21.0MB). Peak memory consumption was 16.1MB. Max. memory is 8.0GB. * BuchiAutomizer took 190647.92ms. Allocated memory was 172.0MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 137.8MB in the beginning and 1.1GB in the end (delta: -935.7MB). Peak memory consumption was 5.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 4 deterministic, 0 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function -1 * x1 + n and consists of 6 locations. One deterministic module has affine ranking function n + -1 * x2 and consists of 6 locations. One deterministic module has affine ranking function -1 * x3 + n and consists of 6 locations. One deterministic module has affine ranking function -1 * x4 + n and consists of 6 locations. The remainder module has 21416384 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 190.5s and 5 iterations. TraceHistogramMax:0. Analysis of lassos took 4.9s. Construction of modules took 0.6s. Büchi inclusion checks took 38.2s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 751 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 751 mSDsluCounter, 1098 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 602 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1500 IncrementalHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 496 mSDtfsCounter, 1500 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital44 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf100 neg100 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 60ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.8s InitialAbstractionConstructionTime: 0.3s - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Buchi Automizer is unable to decide termination: Timeout while executing PetriNetUnfolderBuchi. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 50 PlacesBefore, 28 PlacesAfterwards, 41 TransitionsBefore, 19 TransitionsAfterwards, 756 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 23 TotalNumberOfCompositions, 588 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 588, independent: 588, independent conditional: 0, independent unconditional: 588, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 474, independent: 474, independent conditional: 0, independent unconditional: 474, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 474, independent: 474, independent conditional: 0, independent unconditional: 474, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 588, independent: 114, independent conditional: 0, independent unconditional: 114, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 474, unknown conditional: 0, unknown unconditional: 474] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown !SESSION 2023-10-12 17:22:38.921 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.18 java.vendor=Debian BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -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/exp2x6.wvr.bpl Command-line arguments: -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/exp2x6.wvr.bpl !ENTRY org.eclipse.osgi 4 0 2023-10-12 17:25:53.029 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b55e014de/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:190) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b55e014de/.metadata/.log.