/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/exp2x9.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:22:42,381 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:22:42,454 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 17:22:42,485 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:22:42,486 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:22:42,487 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:22:42,488 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:22:42,488 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:22:42,489 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:22:42,492 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:22:42,492 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:22:42,493 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:22:42,493 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:22:42,494 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:22:42,495 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:22:42,495 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:22:42,495 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:22:42,495 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:22:42,495 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:22:42,496 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:22:42,496 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:22:42,496 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:22:42,496 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:22:42,497 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:22:42,497 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:22:42,497 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:22:42,497 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:22:42,497 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:22:42,498 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:22:42,498 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:22:42,499 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:22:42,499 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:22:42,499 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:22:42,500 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:22:42,501 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:22:42,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:22:42,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:22:42,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:22:42,763 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:22:42,763 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:22:42,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl [2023-10-12 17:22:42,765 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl' [2023-10-12 17:22:42,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:22:42,800 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:22:42,805 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:22:42,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:22:42,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:22:42,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,828 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,833 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:22:42,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:22:42,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:22:42,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:22:42,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:22:42,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,852 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,852 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,864 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:22:42,866 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:22:42,866 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:22:42,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:22:42,867 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/1) ... [2023-10-12 17:22:42,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:42,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:42,902 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 17:22:42,910 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 17:22:42,936 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:22:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:22:42,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:22:42,940 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:22:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:22:42,941 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:22:42,941 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:22:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:22:42,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:22:42,942 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:22:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:22:42,942 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:22:42,943 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:22:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:22:42,943 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:22:42,944 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 17:22:42,982 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:22:42,983 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:22:43,084 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:22:43,091 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:22:43,091 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:22:43,092 INFO L201 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:22:43 BoogieIcfgContainer [2023-10-12 17:22:43,093 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:22:43,094 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:22:43,094 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:22:43,097 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:22:43,097 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:22:43,098 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:42" (1/2) ... [2023-10-12 17:22:43,099 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65e0ba36 and model type exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:22:43, skipping insertion in model container [2023-10-12 17:22:43,099 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:22:43,099 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:22:43" (2/2) ... [2023-10-12 17:22:43,100 INFO L332 chiAutomizerObserver]: Analyzing ICFG exp2x9.wvr.bpl [2023-10-12 17:22:43,199 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:22:43,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 154 flow [2023-10-12 17:22:43,247 INFO L124 PetriNetUnfolderBase]: 4/53 cut-off events. [2023-10-12 17:22:43,248 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:22:43,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 53 events. 4/53 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 147 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2023-10-12 17:22:43,253 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 154 flow [2023-10-12 17:22:43,259 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 53 transitions, 130 flow [2023-10-12 17:22:43,262 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:22:43,274 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions, 130 flow [2023-10-12 17:22:43,277 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 53 transitions, 130 flow [2023-10-12 17:22:43,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions, 130 flow [2023-10-12 17:22:43,290 INFO L124 PetriNetUnfolderBase]: 4/53 cut-off events. [2023-10-12 17:22:43,290 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:22:43,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 53 events. 4/53 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 147 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2023-10-12 17:22:43,292 INFO L119 LiptonReduction]: Number of co-enabled transitions 1440 [2023-10-12 17:22:43,898 INFO L134 LiptonReduction]: Checked pairs total: 1069 [2023-10-12 17:22:43,898 INFO L136 LiptonReduction]: Total number of compositions: 35 [2023-10-12 17:22:43,911 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:22:43,911 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:22:43,911 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:22:43,911 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:22:43,912 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:22:43,912 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:22:43,913 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:22:43,914 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:22:43,915 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:22:43,921 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:43,921 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:22:43,921 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:22:43,922 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:43,927 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:22:43,928 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:22:43,929 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:43,929 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:22:43,929 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:22:43,929 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:43,934 INFO L748 eck$LassoCheckResult]: Stem: 70#[$Ultimate##0]true [84] $Ultimate##0-->L75: Formula: (and (= v_x4_2 v_x3_2) (< 0 v_x3_2) (= v_x1_18 v_x2_18) (< 0 v_x1_18)) InVars {x1=v_x1_18, x4=v_x4_2, x2=v_x2_18, x3=v_x3_2} OutVars{x1=v_x1_18, x4=v_x4_2, x2=v_x2_18, x3=v_x3_2} AuxVars[] AssignedVars[] 72#[L75]true [160] L75-->L18: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 74#[L75-1, L18]true [2023-10-12 17:22:43,935 INFO L750 eck$LassoCheckResult]: Loop: 74#[L75-1, L18]true [206] L18-->L18: Formula: (and (= v_x1_59 (* v_x1_61 128)) (< v_x1_61 v_n_37)) InVars {n=v_n_37, x1=v_x1_61} OutVars{n=v_n_37, x1=v_x1_59} AuxVars[] AssignedVars[x1] 74#[L75-1, L18]true [2023-10-12 17:22:43,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:43,943 INFO L85 PathProgramCache]: Analyzing trace with hash 3725, now seen corresponding path program 1 times [2023-10-12 17:22:43,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:43,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353571793] [2023-10-12 17:22:43,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:43,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:44,053 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:44,074 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:44,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:44,077 INFO L85 PathProgramCache]: Analyzing trace with hash 237, now seen corresponding path program 1 times [2023-10-12 17:22:44,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:44,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248024671] [2023-10-12 17:22:44,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:44,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:44,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:44,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:44,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:44,097 INFO L85 PathProgramCache]: Analyzing trace with hash 115681, now seen corresponding path program 1 times [2023-10-12 17:22:44,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:44,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711399509] [2023-10-12 17:22:44,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:44,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:44,107 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:44,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:44,209 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:44,210 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:44,210 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:44,210 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:44,210 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:22:44,210 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:44,211 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:44,211 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:44,211 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x9.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:22:44,211 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:44,211 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:44,224 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:44,234 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:44,236 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:44,289 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:44,289 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:22:44,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:44,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:44,301 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 17:22:44,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:44,309 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:44,325 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 17:22:44,329 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:44,329 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 17:22:44,336 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 17:22:44,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:44,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:44,341 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 17:22:44,344 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 17:22:44,346 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:44,346 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:44,369 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:44,369 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 17:22:44,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:44,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:44,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:44,378 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 17:22:44,381 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 17:22:44,383 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:44,383 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:44,427 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 17:22:44,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:44,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:44,429 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 17:22:44,440 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:22:44,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:44,465 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 17:22:44,879 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:22:44,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:44,885 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:44,885 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:44,885 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:44,885 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:44,886 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:44,886 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:44,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:44,886 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:44,886 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x9.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:22:44,886 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:44,886 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:44,887 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:44,894 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:44,899 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:44,952 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:44,955 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:44,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:44,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:44,961 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 17:22:44,964 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 17:22:44,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:22:44,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:44,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:44,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:44,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:44,980 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:44,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:44,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:45,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:45,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:45,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:45,005 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 17:22:45,018 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 17:22:45,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:45,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:45,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:45,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:45,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:45,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:45,035 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 17:22:45,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:45,052 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 17:22:45,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:45,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:45,054 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 17:22:45,064 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 17:22:45,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:45,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:45,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:45,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:45,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:45,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:45,088 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 17:22:45,093 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:45,103 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:22:45,104 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:22:45,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:45,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:45,141 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 17:22:45,143 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 17:22:45,144 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:45,152 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:22:45,152 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:45,153 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, n) = -1*x1 + 1*n Supporting invariants [127*x1 - 2 >= 0] [2023-10-12 17:22:45,165 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 17:22:45,178 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:22:45,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:45,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 3 conjunts are in the unsatisfiable core [2023-10-12 17:22:45,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:45,246 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:22:45,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:45,247 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 17:22:45,281 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 17:22:45,283 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 17:22:45,755 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 853 transitions. [2023-10-12 17:22:45,756 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:45,759 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:45,761 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 17:22:45,765 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 17:22:45,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 484 transitions. [2023-10-12 17:22:45,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 484 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:22:45,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:45,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 484 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:22:45,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:45,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 484 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:22:45,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:45,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:45,826 INFO L124 PetriNetUnfolderBase]: 431/583 cut-off events. [2023-10-12 17:22:45,826 INFO L125 PetriNetUnfolderBase]: For 111/111 co-relation queries the response was YES. [2023-10-12 17:22:45,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1327 conditions, 583 events. 431/583 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1662 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 17:22:45,828 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:45,833 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:45,833 INFO L430 stractBuchiCegarLoop]: Abstraction has has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:45,833 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:22:45,833 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 44 places, 336 transitions, 1776 flow [2023-10-12 17:22:45,838 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:45,838 INFO L124 PetriNetUnfolderBase]: 28/43 cut-off events. [2023-10-12 17:22:45,838 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-10-12 17:22:45,838 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:45,839 INFO L748 eck$LassoCheckResult]: Stem: 70#[$Ultimate##0]true [84] $Ultimate##0-->L75: Formula: (and (= v_x4_2 v_x3_2) (< 0 v_x3_2) (= v_x1_18 v_x2_18) (< 0 v_x1_18)) InVars {x1=v_x1_18, x4=v_x4_2, x2=v_x2_18, x3=v_x3_2} OutVars{x1=v_x1_18, x4=v_x4_2, x2=v_x2_18, x3=v_x3_2} AuxVars[] AssignedVars[] 72#[L75]true [160] L75-->L18: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 74#[L75-1, L18]true [163] L75-1-->L32: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 138#[L32, L18, L76]true [2023-10-12 17:22:45,839 INFO L750 eck$LassoCheckResult]: Loop: 138#[L32, L18, L76]true [205] L32-->L32: Formula: (and (= (* v_x2_61 128) v_x2_59) (< v_x2_61 v_n_35)) InVars {n=v_n_35, x2=v_x2_61} OutVars{n=v_n_35, x2=v_x2_59} AuxVars[] AssignedVars[x2] 138#[L32, L18, L76]true [205] L32-->L32: Formula: (and (= (* v_x2_61 128) v_x2_59) (< v_x2_61 v_n_35)) InVars {n=v_n_35, x2=v_x2_61} OutVars{n=v_n_35, x2=v_x2_59} AuxVars[] AssignedVars[x2] 138#[L32, L18, L76]true [2023-10-12 17:22:45,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:45,840 INFO L85 PathProgramCache]: Analyzing trace with hash 115638, now seen corresponding path program 1 times [2023-10-12 17:22:45,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:45,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620351838] [2023-10-12 17:22:45,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:45,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:45,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:45,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:45,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:45,851 INFO L85 PathProgramCache]: Analyzing trace with hash 7521, now seen corresponding path program 1 times [2023-10-12 17:22:45,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:45,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104164949] [2023-10-12 17:22:45,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:45,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:45,855 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:45,859 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:45,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:45,859 INFO L85 PathProgramCache]: Analyzing trace with hash 111134678, now seen corresponding path program 1 times [2023-10-12 17:22:45,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:45,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101910738] [2023-10-12 17:22:45,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:45,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:45,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:45,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:45,936 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:45,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:45,937 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:45,937 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:45,937 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:22:45,937 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:45,937 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:45,937 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:45,937 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x9.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:22:45,937 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:45,937 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:45,939 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 17:22:45,941 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 17:22:45,943 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 17:22:45,951 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 17:22:45,955 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 17:22:46,011 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:46,012 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:22:46,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:46,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:46,014 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 17:22:46,028 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 17:22:46,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:46,029 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:46,040 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:46,040 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 17:22:46,047 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 17:22:46,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:46,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:46,051 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 17:22:46,052 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 17:22:46,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:46,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:46,068 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:22:46,068 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 17:22:46,075 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 17:22:46,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:46,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:46,077 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 17:22:46,078 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 17:22:46,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:46,081 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:46,128 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 17:22:46,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:46,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:46,130 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 17:22:46,145 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 17:22:46,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:22:46,146 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:50,155 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:22:50,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:50,162 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:50,162 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:50,162 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:50,163 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:50,163 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:50,163 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:50,163 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:50,163 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:50,163 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x9.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:22:50,163 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:50,163 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:50,164 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 17:22:50,172 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 17:22:50,181 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 17:22:50,184 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 17:22:50,189 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 17:22:50,262 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:50,263 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:50,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:50,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:50,264 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 17:22:50,267 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 17:22:50,269 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 17:22:50,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:50,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:50,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:50,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:50,280 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:50,281 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:50,293 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:50,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:50,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:50,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:50,297 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 17:22:50,312 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 17:22:50,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:50,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:50,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:50,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:50,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:50,325 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:50,333 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 17:22:50,339 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:50,369 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-10-12 17:22:50,370 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-10-12 17:22:50,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:50,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:50,372 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 17:22:50,374 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 17:22:50,375 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:50,397 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:22:50,397 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:50,397 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, n) = -1*x2 + 1*n Supporting invariants [16383*x2 - 2 >= 0] [2023-10-12 17:22:50,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:50,403 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:22:50,421 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:50,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:22:50,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:50,453 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:22:50,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:50,477 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 17:22:50,477 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 17:22:50,477 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 17:22:50,777 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 17:22:50,782 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 17:22:50,859 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 853 transitions. [2023-10-12 17:22:50,859 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:50,888 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:50,889 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 17:22:50,890 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 17:22:50,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 484 transitions. [2023-10-12 17:22:50,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 484 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:22:50,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:50,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 484 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:22:50,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:50,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 484 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:22:50,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:50,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 5960 transitions, 43536 flow [2023-10-12 17:22:51,170 INFO L124 PetriNetUnfolderBase]: 1314/1731 cut-off events. [2023-10-12 17:22:51,171 INFO L125 PetriNetUnfolderBase]: For 353/353 co-relation queries the response was YES. [2023-10-12 17:22:51,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5646 conditions, 1731 events. 1314/1731 cut-off events. For 353/353 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 5932 event pairs, 76 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 17:22:51,175 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 60 places, 5960 transitions, 43536 flow [2023-10-12 17:22:51,262 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 60 places, 5960 transitions, 43536 flow [2023-10-12 17:22:51,263 INFO L430 stractBuchiCegarLoop]: Abstraction has has 60 places, 5960 transitions, 43536 flow [2023-10-12 17:22:51,263 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:22:51,263 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 places, 5960 transitions, 43536 flow [2023-10-12 17:22:51,343 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:51,344 INFO L124 PetriNetUnfolderBase]: 274/358 cut-off events. [2023-10-12 17:22:51,344 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-10-12 17:22:51,344 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:51,345 INFO L748 eck$LassoCheckResult]: Stem: 70#[$Ultimate##0]true [84] $Ultimate##0-->L75: Formula: (and (= v_x4_2 v_x3_2) (< 0 v_x3_2) (= v_x1_18 v_x2_18) (< 0 v_x1_18)) InVars {x1=v_x1_18, x4=v_x4_2, x2=v_x2_18, x3=v_x3_2} OutVars{x1=v_x1_18, x4=v_x4_2, x2=v_x2_18, x3=v_x3_2} AuxVars[] AssignedVars[] 72#[L75]true [160] L75-->L18: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 74#[L75-1, L18]true [163] L75-1-->L32: 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] 138#[L32, L18, L76]true [166] L76-->L46: 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] 206#[L46, L32, L18, L77]true [206] L18-->L18: Formula: (and (= v_x1_59 (* v_x1_61 128)) (< v_x1_61 v_n_37)) InVars {n=v_n_37, x1=v_x1_61} OutVars{n=v_n_37, x1=v_x1_59} AuxVars[] AssignedVars[x1] 206#[L46, L32, L18, L77]true [169] L77-->L60: 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] 209#[L46, L60, L32, L18, L78]true [207] L46-->L46: Formula: (and (= (* v_x3_61 128) v_x3_59) (< v_x3_61 v_n_39)) InVars {n=v_n_39, x3=v_x3_61} OutVars{n=v_n_39, x3=v_x3_59} AuxVars[] AssignedVars[x3] 209#[L46, L60, L32, L18, L78]true [2023-10-12 17:22:51,345 INFO L750 eck$LassoCheckResult]: Loop: 209#[L46, L60, L32, L18, L78]true [207] L46-->L46: Formula: (and (= (* v_x3_61 128) v_x3_59) (< v_x3_61 v_n_39)) InVars {n=v_n_39, x3=v_x3_61} OutVars{n=v_n_39, x3=v_x3_59} AuxVars[] AssignedVars[x3] 209#[L46, L60, L32, L18, L78]true [207] L46-->L46: Formula: (and (= (* v_x3_61 128) v_x3_59) (< v_x3_61 v_n_39)) InVars {n=v_n_39, x3=v_x3_61} OutVars{n=v_n_39, x3=v_x3_59} AuxVars[] AssignedVars[x3] 209#[L46, L60, L32, L18, L78]true [2023-10-12 17:22:51,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:51,346 INFO L85 PathProgramCache]: Analyzing trace with hash -574912284, now seen corresponding path program 1 times [2023-10-12 17:22:51,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:51,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105483265] [2023-10-12 17:22:51,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:51,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:51,375 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:51,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:51,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:51,383 INFO L85 PathProgramCache]: Analyzing trace with hash 7585, now seen corresponding path program 1 times [2023-10-12 17:22:51,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:51,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165868847] [2023-10-12 17:22:51,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:51,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:51,416 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:51,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:51,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:51,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1560082884, now seen corresponding path program 2 times [2023-10-12 17:22:51,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:51,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930757468] [2023-10-12 17:22:51,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:51,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:51,432 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:51,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:51,609 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:51,610 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:51,610 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:51,610 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:51,610 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:22:51,610 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:51,610 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:51,610 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:51,610 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x9.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:22:51,610 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:51,610 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:51,612 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 17:22:51,630 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 17:22:51,633 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 17:22:51,635 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 17:22:51,638 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 17:22:51,640 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 17:22:51,642 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 17:22:51,645 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 17:22:51,647 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 17:22:51,654 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 17:22:51,657 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 17:22:51,781 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:51,781 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:22:51,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:51,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:51,783 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 17:22:51,792 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 17:22:51,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:22:51,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:51,814 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 17:22:51,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:51,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:51,815 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 17:22:51,817 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 17:22:51,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:22:51,819 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:22:52,451 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:22:52,457 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 17:22:52,457 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:52,457 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:52,457 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:52,457 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:52,457 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:52,457 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:52,457 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:52,458 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:52,458 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x9.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:22:52,458 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:52,458 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:52,459 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 17:22:52,484 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 17:22:52,487 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 17:22:52,489 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:52,492 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 17:22:52,494 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:52,497 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:52,499 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 17:22:52,502 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 17:22:52,505 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:52,506 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 17:22:52,626 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:52,627 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:52,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:52,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:52,628 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 17:22:52,633 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 17:22:52,634 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 17:22:52,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:52,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:52,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:52,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:52,646 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:52,646 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:52,660 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:52,667 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:22:52,667 INFO L444 ModelExtractionUtils]: 13 out of 19 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:22:52,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:52,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:52,669 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 17:22:52,680 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:52,689 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 17:22:52,698 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:22:52,698 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:52,698 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x3) = 1*n - 1*x3 Supporting invariants [16383*x3 - 2 >= 0] [2023-10-12 17:22:52,705 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 17:22:52,709 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:22:52,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:52,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:22:52,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:52,782 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:22:52,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:52,799 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 17:22:52,800 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 17:22:52,800 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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 17:22:53,154 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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 851 transitions. [2023-10-12 17:22:53,154 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:53,479 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 17:22:54,036 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:54,041 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 17:22:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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 17:22:54,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 484 transitions. [2023-10-12 17:22:54,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 484 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:22:54,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:54,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 484 transitions. Stem has 9 letters. Loop has 2 letters. [2023-10-12 17:22:54,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:54,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 484 transitions. Stem has 7 letters. Loop has 4 letters. [2023-10-12 17:22:54,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:54,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 106000 transitions, 987968 flow [2023-10-12 17:23:10,096 INFO L124 PetriNetUnfolderBase]: 4830/6277 cut-off events. [2023-10-12 17:23:10,097 INFO L125 PetriNetUnfolderBase]: For 1362/1362 co-relation queries the response was YES. [2023-10-12 17:23:10,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26575 conditions, 6277 events. 4830/6277 cut-off events. For 1362/1362 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 26175 event pairs, 123 based on Foata normal form. 0/3323 useless extension candidates. Maximal degree in co-relation 18324. Up to 2379 conditions per place. [2023-10-12 17:23:10,104 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 76 places, 106000 transitions, 987968 flow [2023-10-12 17:23:11,146 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 76 places, 106000 transitions, 987968 flow [2023-10-12 17:23:11,146 INFO L430 stractBuchiCegarLoop]: Abstraction has has 76 places, 106000 transitions, 987968 flow [2023-10-12 17:23:11,147 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:23:11,147 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 76 places, 106000 transitions, 987968 flow [2023-10-12 17:23:13,024 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:23:13,024 INFO L124 PetriNetUnfolderBase]: 302/401 cut-off events. [2023-10-12 17:23:13,024 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-10-12 17:23:13,024 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:23:13,025 INFO L748 eck$LassoCheckResult]: Stem: 70#[$Ultimate##0]true [84] $Ultimate##0-->L75: Formula: (and (= v_x4_2 v_x3_2) (< 0 v_x3_2) (= v_x1_18 v_x2_18) (< 0 v_x1_18)) InVars {x1=v_x1_18, x4=v_x4_2, x2=v_x2_18, x3=v_x3_2} OutVars{x1=v_x1_18, x4=v_x4_2, x2=v_x2_18, x3=v_x3_2} AuxVars[] AssignedVars[] 72#[L75]true [160] L75-->L18: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 74#[L75-1, L18]true [163] L75-1-->L32: 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] 138#[L32, L18, L76]true [166] L76-->L46: 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] 206#[L46, L32, L18, L77]true [206] L18-->L18: Formula: (and (= v_x1_59 (* v_x1_61 128)) (< v_x1_61 v_n_37)) InVars {n=v_n_37, x1=v_x1_61} OutVars{n=v_n_37, x1=v_x1_59} AuxVars[] AssignedVars[x1] 206#[L46, L32, L18, L77]true [169] L77-->L60: 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] 209#[L46, L60, L32, L18, L78]true [208] L60-->L60: Formula: (and (= (* v_x4_61 128) v_x4_59) (< v_x4_61 v_n_41)) InVars {n=v_n_41, x4=v_x4_61} OutVars{n=v_n_41, x4=v_x4_59} AuxVars[] AssignedVars[x4] 209#[L46, L60, L32, L18, L78]true [2023-10-12 17:23:13,025 INFO L750 eck$LassoCheckResult]: Loop: 209#[L46, L60, L32, L18, L78]true [208] L60-->L60: Formula: (and (= (* v_x4_61 128) v_x4_59) (< v_x4_61 v_n_41)) InVars {n=v_n_41, x4=v_x4_61} OutVars{n=v_n_41, x4=v_x4_59} AuxVars[] AssignedVars[x4] 209#[L46, L60, L32, L18, L78]true [208] L60-->L60: Formula: (and (= (* v_x4_61 128) v_x4_59) (< v_x4_61 v_n_41)) InVars {n=v_n_41, x4=v_x4_61} OutVars{n=v_n_41, x4=v_x4_59} AuxVars[] AssignedVars[x4] 209#[L46, L60, L32, L18, L78]true [2023-10-12 17:23:13,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:13,025 INFO L85 PathProgramCache]: Analyzing trace with hash -574912283, now seen corresponding path program 1 times [2023-10-12 17:23:13,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:13,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854194144] [2023-10-12 17:23:13,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:13,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:13,040 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:13,243 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:13,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:13,243 INFO L85 PathProgramCache]: Analyzing trace with hash 7617, now seen corresponding path program 1 times [2023-10-12 17:23:13,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:13,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968761259] [2023-10-12 17:23:13,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:13,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:13,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:13,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:13,249 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:13,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1560083877, now seen corresponding path program 2 times [2023-10-12 17:23:13,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:13,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096155563] [2023-10-12 17:23:13,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:13,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:13,280 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:13,298 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:13,547 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:23:13,547 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:23:13,547 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:23:13,547 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:23:13,547 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:23:13,547 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:13,547 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:23:13,547 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:23:13,547 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x9.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:23:13,547 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:23:13,547 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:23:13,549 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 17:23:13,551 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 17:23:13,554 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 17:23:13,556 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 17:23:13,558 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 17:23:13,560 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 17:23:13,562 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 17:23:13,564 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 17:23:13,566 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 17:23:13,580 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 17:23:13,583 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 17:23:13,703 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:23:13,704 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:23:13,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:13,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:13,710 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 17:23:13,723 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:13,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:13,731 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 17:23:13,732 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:13,732 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 17:23:13,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:13,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:13,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:13,735 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 17:23:13,737 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 17:23:13,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:13,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:13,746 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:13,746 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 17:23:13,749 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 17:23:13,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:13,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:13,750 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 17:23:13,752 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 17:23:13,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:13,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:13,760 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:13,761 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread4Thread1of1ForFork3_thidvar3=0} Honda state: {thread4Thread1of1ForFork3_thidvar3=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:13,767 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 17:23:13,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:13,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:13,768 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 17:23:13,770 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 17:23:13,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:13,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:13,779 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:13,779 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread4Thread1of1ForFork3_thidvar2=0} Honda state: {thread4Thread1of1ForFork3_thidvar2=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:23:13,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:13,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:13,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:13,783 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 17:23:13,785 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 17:23:13,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:13,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:13,794 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:13,794 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 17:23:13,797 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 17:23:13,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:13,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:13,798 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 17:23:13,799 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 17:23:13,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:13,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:13,814 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:13,814 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 17:23:13,817 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 17:23:13,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:13,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:13,818 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 17:23:13,819 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 17:23:13,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:13,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:13,829 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:13,829 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 17:23:13,831 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 17:23:13,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:13,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:13,833 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 17:23:13,836 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 17:23:13,837 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:13,837 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:13,844 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:23:13,844 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 17:23:13,846 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 17:23:13,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:13,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:13,848 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 17:23:13,848 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 17:23:13,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:23:13,852 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:13,869 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 17:23:13,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:13,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:13,871 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 17:23:13,871 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 17:23:13,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:23:13,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:23:15,564 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:23:15,570 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 17:23:15,570 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:23:15,570 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:23:15,570 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:23:15,570 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:23:15,570 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:23:15,571 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:15,571 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:23:15,571 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:23:15,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x9.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:23:15,571 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:23:15,571 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:23:15,572 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 17:23:15,580 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 17:23:15,582 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 17:23:15,584 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 17:23:15,586 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 17:23:15,588 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 17:23:15,591 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 17:23:15,593 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 17:23:15,596 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 17:23:15,599 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 17:23:15,617 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 17:23:15,728 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:23:15,728 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:23:15,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:15,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:15,729 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 17:23:15,731 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 17:23:15,733 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 17:23:15,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:15,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:15,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:15,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:15,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:15,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:15,744 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:15,747 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 17:23:15,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:15,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:15,751 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 17:23:15,752 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 17:23:15,804 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 17:23:15,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:15,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:15,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:15,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:15,812 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:15,812 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:15,816 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:15,821 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 17:23:15,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:15,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:15,823 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 17:23:15,823 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 17:23:15,826 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 17:23:15,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:15,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:15,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:15,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:15,835 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:15,835 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:15,837 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:15,840 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 17:23:15,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:15,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:15,842 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 17:23:15,843 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 17:23:15,845 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 17:23:15,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:15,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:15,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:15,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:15,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:15,854 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:15,856 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:15,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:15,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:15,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:15,861 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 17:23:15,862 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 17:23:15,864 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 17:23:15,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:15,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:15,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:15,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:15,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:15,872 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:15,874 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:15,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:15,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:15,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:15,878 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 17:23:15,880 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 17:23:15,881 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 17:23:15,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:15,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:15,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:15,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:15,889 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:15,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:15,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:15,895 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 17:23:15,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:15,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:15,901 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 17:23:15,904 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 17:23:15,905 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 17:23:15,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:15,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:15,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:15,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:15,913 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:15,913 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:15,925 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:15,929 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 17:23:15,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:15,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:16,081 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 17:23:16,082 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 17:23:16,084 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 17:23:16,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:16,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:16,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:16,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:16,091 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:16,091 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:16,094 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:16,096 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 17:23:16,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:16,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:16,098 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 17:23:16,099 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 17:23:16,101 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 17:23:16,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:16,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:16,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:16,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:16,108 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:16,108 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:16,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:16,113 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 17:23:16,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:16,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:16,114 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 17:23:16,117 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 17:23:16,118 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 17:23:16,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:16,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:16,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:16,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:16,128 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:16,128 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:16,146 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:23:16,153 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:23:16,153 INFO L444 ModelExtractionUtils]: 13 out of 19 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:23:16,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:16,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:16,185 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 17:23:16,187 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 17:23:16,189 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:23:16,218 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:23:16,218 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:23:16,218 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x4) = 1*n - 1*x4 Supporting invariants [16383*x4 - 2 >= 0] [2023-10-12 17:23:16,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:16,227 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:23:16,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:23:16,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:23:16,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:23:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:23:16,293 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:23:16,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:23:16,307 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 17:23:16,308 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 17:23:16,308 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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 17:23:16,631 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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 853 transitions. [2023-10-12 17:23:16,631 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:23:16,841 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 17:23:54,627 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:23:54,628 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 17:23:54,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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 17:23:54,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 484 transitions. [2023-10-12 17:23:54,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 484 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:23:54,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:54,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 484 transitions. Stem has 9 letters. Loop has 2 letters. [2023-10-12 17:23:54,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:54,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 484 transitions. Stem has 7 letters. Loop has 4 letters. [2023-10-12 17:23:54,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:54,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 1889696 transitions, 21416384 flow Received shutdown request... [2023-10-12 17:25:37,695 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 17:25:38,012 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 17:25:38,012 INFO L430 stractBuchiCegarLoop]: Abstraction has has 92 places, 1889696 transitions, 21416384 flow [2023-10-12 17:25:38,013 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:25:38,013 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 92 places, 1889696 transitions, 21416384 flow [2023-10-12 17:25:38,685 WARN L343 stractBuchiCegarLoop]: Verification cancelled [2023-10-12 17:25:38,690 INFO L201 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:25:38 BoogieIcfgContainer [2023-10-12 17:25:38,690 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:25:38,690 INFO L158 Benchmark]: Toolchain (without parser) took 175889.81ms. Allocated memory was 175.1MB in the beginning and 6.7GB in the end (delta: 6.6GB). Free memory was 129.2MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 5.1GB. Max. memory is 8.0GB. [2023-10-12 17:25:38,690 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.22ms. Allocated memory is still 175.1MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:25:38,691 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.94ms. Allocated memory is still 175.1MB. Free memory was 129.1MB in the beginning and 127.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:25:38,691 INFO L158 Benchmark]: Boogie Preprocessor took 29.34ms. Allocated memory is still 175.1MB. Free memory was 127.6MB in the beginning and 126.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:25:38,691 INFO L158 Benchmark]: RCFGBuilder took 227.13ms. Allocated memory is still 175.1MB. Free memory was 126.5MB in the beginning and 115.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-10-12 17:25:38,691 INFO L158 Benchmark]: BuchiAutomizer took 175596.29ms. Allocated memory was 175.1MB in the beginning and 6.7GB in the end (delta: 6.6GB). Free memory was 115.6MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 5.1GB. Max. memory is 8.0GB. [2023-10-12 17:25:38,692 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 0.22ms. Allocated memory is still 175.1MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.94ms. Allocated memory is still 175.1MB. Free memory was 129.1MB in the beginning and 127.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.34ms. Allocated memory is still 175.1MB. Free memory was 127.6MB in the beginning and 126.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 227.13ms. Allocated memory is still 175.1MB. Free memory was 126.5MB in the beginning and 115.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 175596.29ms. Allocated memory was 175.1MB in the beginning and 6.7GB in the end (delta: 6.6GB). Free memory was 115.6MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 5.1GB. 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 175.4s and 5 iterations. TraceHistogramMax:0. Analysis of lassos took 10.3s. Construction of modules took 1.0s. Büchi inclusion checks took 39.7s. 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, 989 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 989 mSDsluCounter, 1376 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 724 mSDsCounter, 133 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1943 IncrementalHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 133 mSolverCounterUnsat, 652 mSDtfsCounter, 1943 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital51 mio100 ax100 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf92 smp100 dnf100 smp100 tf100 neg100 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 12 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 7.2s InitialAbstractionConstructionTime: 0.6s - 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: 0.6s, 62 PlacesBefore, 28 PlacesAfterwards, 53 TransitionsBefore, 19 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 4 FixpointIterations, 3 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 35 TotalNumberOfCompositions, 1069 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1069, independent: 1069, independent conditional: 0, independent unconditional: 1069, 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: 912, independent: 912, independent conditional: 0, independent unconditional: 912, 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: 912, independent: 912, independent conditional: 0, independent unconditional: 912, 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: 1069, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 912, unknown conditional: 0, unknown unconditional: 912] , 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