/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_AUTOMATON -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/hard1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:14:47,281 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:14:47,354 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 17:14:47,382 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:14:47,383 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:14:47,383 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:14:47,384 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:14:47,385 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:14:47,385 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:14:47,389 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:14:47,389 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:14:47,389 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:14:47,390 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:14:47,391 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:14:47,391 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:14:47,392 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:14:47,392 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:14:47,392 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:14:47,392 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:14:47,392 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:14:47,393 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:14:47,393 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:14:47,393 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:14:47,394 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:14:47,394 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:14:47,394 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:14:47,394 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:14:47,394 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:14:47,395 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:14:47,395 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:14:47,396 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:14:47,396 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:14:47,396 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:14:47,398 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:14:47,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:14:47,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:14:47,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:14:47,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:14:47,644 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:14:47,646 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:14:47,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/hard1.wvr.bpl [2023-10-12 17:14:47,648 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/hard1.wvr.bpl' [2023-10-12 17:14:47,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:14:47,683 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:14:47,685 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:14:47,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:14:47,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:14:47,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:47" (1/1) ... [2023-10-12 17:14:47,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:47" (1/1) ... [2023-10-12 17:14:47,709 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:14:47,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:14:47,713 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:14:47,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:14:47,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:14:47,721 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:47" (1/1) ... [2023-10-12 17:14:47,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:47" (1/1) ... [2023-10-12 17:14:47,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:47" (1/1) ... [2023-10-12 17:14:47,723 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:47" (1/1) ... [2023-10-12 17:14:47,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:47" (1/1) ... [2023-10-12 17:14:47,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:47" (1/1) ... [2023-10-12 17:14:47,732 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:47" (1/1) ... [2023-10-12 17:14:47,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:47" (1/1) ... [2023-10-12 17:14:47,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:14:47,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:14:47,739 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:14:47,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:14:47,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:47" (1/1) ... [2023-10-12 17:14:47,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:47,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:47,773 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 17:14:47,780 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 17:14:47,810 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:14:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:14:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:14:47,814 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:14:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:14:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:14:47,815 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:14:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:14:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:14:47,815 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:14:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:14:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:14:47,816 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:14:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:14:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:14:47,817 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 17:14:47,859 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:14:47,861 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:14:47,986 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:14:48,005 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:14:48,005 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:14:48,007 INFO L201 PluginConnector]: Adding new model hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:14:48 BoogieIcfgContainer [2023-10-12 17:14:48,007 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:14:48,008 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:14:48,008 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:14:48,011 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:14:48,012 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:14:48,012 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:47" (1/2) ... [2023-10-12 17:14:48,013 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c54a5de and model type hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:14:48, skipping insertion in model container [2023-10-12 17:14:48,013 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:14:48,013 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:14:48" (2/2) ... [2023-10-12 17:14:48,014 INFO L332 chiAutomizerObserver]: Analyzing ICFG hard1.wvr.bpl [2023-10-12 17:14:48,069 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:14:48,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 106 flow [2023-10-12 17:14:48,113 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2023-10-12 17:14:48,114 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:14:48,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 29 events. 4/29 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:14:48,118 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 106 flow [2023-10-12 17:14:48,122 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 29 transitions, 82 flow [2023-10-12 17:14:48,125 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:14:48,136 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 29 transitions, 82 flow [2023-10-12 17:14:48,138 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 29 transitions, 82 flow [2023-10-12 17:14:48,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 29 transitions, 82 flow [2023-10-12 17:14:48,147 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2023-10-12 17:14:48,147 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:14:48,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 29 events. 4/29 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:14:48,149 INFO L119 LiptonReduction]: Number of co-enabled transitions 288 [2023-10-12 17:14:48,272 INFO L134 LiptonReduction]: Checked pairs total: 468 [2023-10-12 17:14:48,273 INFO L136 LiptonReduction]: Total number of compositions: 7 [2023-10-12 17:14:48,292 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:14:48,293 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:14:48,293 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:14:48,293 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:14:48,294 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:14:48,294 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:14:48,295 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:14:48,296 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:14:48,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:14:48,389 INFO L131 ngComponentsAnalysis]: Automaton has 37 accepting balls. 152 [2023-10-12 17:14:48,390 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:14:48,390 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:14:48,394 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:14:48,395 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-10-12 17:14:48,395 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:14:48,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 163 states, but on-demand construction may add more states [2023-10-12 17:14:48,410 INFO L131 ngComponentsAnalysis]: Automaton has 37 accepting balls. 152 [2023-10-12 17:14:48,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:14:48,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:14:48,411 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:14:48,411 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-10-12 17:14:48,415 INFO L748 eck$LassoCheckResult]: Stem: 45#[$Ultimate##0]don't care [71] $Ultimate##0-->L63: Formula: (and (= v_n2_1 v_n1_11) (= v_p1_5 v_p2_1)) InVars {p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} OutVars{p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} AuxVars[] AssignedVars[] 48#[L63]don't care [96] L63-->L19-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 50#[L63-1, L19-1]don't care [2023-10-12 17:14:48,416 INFO L750 eck$LassoCheckResult]: Loop: 50#[L63-1, L19-1]don't care [79] L19-1-->L19: Formula: (< 0 v_n1_1) InVars {n1=v_n1_1} OutVars{n1=v_n1_1} AuxVars[] AssignedVars[] 56#[L63-1, L19]don't care [81] L19-->L19-1: Formula: (let ((.cse0 (< 0 v_n1_13))) (and (= v_n1_12 (ite .cse0 (+ (- 1) v_n1_13) v_n1_13)) (= v_p1_7 (ite .cse0 (+ v_p1_8 v_m_7) v_p1_8)))) InVars {p1=v_p1_8, m=v_m_7, n1=v_n1_13} OutVars{p1=v_p1_7, m=v_m_7, n1=v_n1_12} AuxVars[] AssignedVars[p1, n1] 50#[L63-1, L19-1]don't care [2023-10-12 17:14:48,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:48,420 INFO L85 PathProgramCache]: Analyzing trace with hash 3258, now seen corresponding path program 1 times [2023-10-12 17:14:48,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:48,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414455017] [2023-10-12 17:14:48,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:48,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:48,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:48,536 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:48,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:48,537 INFO L85 PathProgramCache]: Analyzing trace with hash 3491, now seen corresponding path program 1 times [2023-10-12 17:14:48,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:48,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622960125] [2023-10-12 17:14:48,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:48,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:48,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:48,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:48,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:48,554 INFO L85 PathProgramCache]: Analyzing trace with hash 3133468, now seen corresponding path program 1 times [2023-10-12 17:14:48,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:48,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292959280] [2023-10-12 17:14:48,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:48,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:48,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:48,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:48,611 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:48,612 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:48,612 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:48,612 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:48,612 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:14:48,612 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:48,613 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:48,613 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:48,613 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:14:48,613 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:48,613 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:48,625 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 17:14:48,634 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 17:14:48,667 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:48,667 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:14:48,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:48,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:48,673 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 17:14:48,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:48,681 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:48,692 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 17:14:48,704 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:14:48,704 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {m=0, p1=0} Honda state: {m=0, p1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:14:48,709 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 17:14:48,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:48,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:48,710 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 17:14:48,711 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 17:14:48,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:48,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:48,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-10-12 17:14:48,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:48,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:48,726 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 17:14:48,728 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 17:14:48,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:14:48,733 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:48,759 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:14:48,762 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 17:14:48,762 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:48,762 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:48,762 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:48,762 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:48,763 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:14:48,763 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:48,763 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:48,763 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:48,763 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:14:48,763 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:48,763 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:48,764 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:48,768 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:48,795 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:48,799 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:14:48,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:48,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:48,801 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 17:14:48,809 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 17:14:48,812 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 17:14:48,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:48,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:48,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:48,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:48,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:48,819 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:48,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:48,835 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:14:48,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:48,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:48,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:48,844 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:48,845 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 17:14:48,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:14:48,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:48,853 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:48,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:48,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:48,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:48,855 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:48,855 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:48,867 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:14:48,871 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:14:48,871 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:14:48,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:48,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:48,879 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 17:14:48,880 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 17:14:48,917 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:14:48,918 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:14:48,918 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:14:48,919 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n1) = 1*n1 Supporting invariants [] [2023-10-12 17:14:48,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-10-12 17:14:48,927 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:14:48,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:48,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:14:48,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:48,971 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:14:48,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:48,989 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 17:14:49,033 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:14:49,034 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 163 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:14:49,180 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 163 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 692 states and 2778 transitions. Complement of second has 7 states. [2023-10-12 17:14:49,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:14:49,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:14:49,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2023-10-12 17:14:49,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:14:49,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:49,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:14:49,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:49,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 2 letters. Loop has 4 letters. [2023-10-12 17:14:49,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:49,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 692 states and 2778 transitions. [2023-10-12 17:14:49,215 INFO L131 ngComponentsAnalysis]: Automaton has 52 accepting balls. 195 [2023-10-12 17:14:49,233 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 692 states to 492 states and 2036 transitions. [2023-10-12 17:14:49,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2023-10-12 17:14:49,238 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 339 [2023-10-12 17:14:49,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 492 states and 2036 transitions. [2023-10-12 17:14:49,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:14:49,239 INFO L219 hiAutomatonCegarLoop]: Abstraction has 492 states and 2036 transitions. [2023-10-12 17:14:49,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states and 2036 transitions. [2023-10-12 17:14:49,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 333. [2023-10-12 17:14:49,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 333 states have (on average 4.306306306306307) internal successors, (1434), 332 states have internal predecessors, (1434), 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 17:14:49,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 1434 transitions. [2023-10-12 17:14:49,310 INFO L241 hiAutomatonCegarLoop]: Abstraction has 333 states and 1434 transitions. [2023-10-12 17:14:49,310 INFO L430 stractBuchiCegarLoop]: Abstraction has 333 states and 1434 transitions. [2023-10-12 17:14:49,310 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:14:49,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 333 states and 1434 transitions. [2023-10-12 17:14:49,313 INFO L131 ngComponentsAnalysis]: Automaton has 45 accepting balls. 177 [2023-10-12 17:14:49,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:14:49,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:14:49,314 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:14:49,314 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-10-12 17:14:49,314 INFO L748 eck$LassoCheckResult]: Stem: 1431#[$Ultimate##0]don't care [71] $Ultimate##0-->L63: Formula: (and (= v_n2_1 v_n1_11) (= v_p1_5 v_p2_1)) InVars {p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} OutVars{p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} AuxVars[] AssignedVars[] 1127#[L63]don't care [96] L63-->L19-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 1129#[L63-1, L19-1]don't care [99] L63-1-->L30-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 1251#[L19-1, L30-1, L64]don't care [2023-10-12 17:14:49,314 INFO L750 eck$LassoCheckResult]: Loop: 1251#[L19-1, L30-1, L64]don't care [83] L30-1-->L30: Formula: (< 1 v_n1_6) InVars {n1=v_n1_6} OutVars{n1=v_n1_6} AuxVars[] AssignedVars[] 1249#[L19-1, L30, L64]don't care [85] L30-->L30-1: Formula: (let ((.cse0 (< 1 v_n1_17))) (and (= (ite .cse0 (+ (* 2 v_m_9) v_p1_12) v_p1_12) v_p1_11) (= v_n1_16 (ite .cse0 (+ (- 2) v_n1_17) v_n1_17)))) InVars {p1=v_p1_12, m=v_m_9, n1=v_n1_17} OutVars{p1=v_p1_11, m=v_m_9, n1=v_n1_16} AuxVars[] AssignedVars[p1, n1] 1251#[L19-1, L30-1, L64]don't care [2023-10-12 17:14:49,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:49,315 INFO L85 PathProgramCache]: Analyzing trace with hash 101097, now seen corresponding path program 1 times [2023-10-12 17:14:49,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:49,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824874915] [2023-10-12 17:14:49,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:49,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:49,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:49,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:49,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:49,333 INFO L85 PathProgramCache]: Analyzing trace with hash 3619, now seen corresponding path program 1 times [2023-10-12 17:14:49,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:49,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048904816] [2023-10-12 17:14:49,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:49,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:49,343 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:49,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:49,347 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:49,347 INFO L85 PathProgramCache]: Analyzing trace with hash 97156875, now seen corresponding path program 1 times [2023-10-12 17:14:49,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:49,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617923596] [2023-10-12 17:14:49,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:49,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:49,362 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:49,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:49,399 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:49,399 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:49,399 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:49,399 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:49,399 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:14:49,399 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:49,399 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:49,399 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:49,399 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:14:49,399 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:49,399 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:49,400 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:49,403 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:49,427 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:49,427 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:14:49,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:49,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:49,435 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 17:14:49,436 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 17:14:49,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:49,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:49,460 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:14:49,460 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {m=0, p1=0} Honda state: {m=0, p1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:14:49,466 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 17:14:49,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:49,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:49,469 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 17:14:49,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:49,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:49,489 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 17:14:49,506 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 17:14:49,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:49,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:49,509 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 17:14:49,512 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 17:14:49,513 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:14:49,513 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:49,548 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:14:49,553 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 17:14:49,554 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:49,554 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:49,554 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:49,554 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:49,554 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:14:49,554 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:49,554 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:49,554 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:49,555 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:14:49,555 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:49,555 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:49,556 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 17:14:49,561 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:49,587 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:49,587 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:14:49,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:49,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:49,589 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 17:14:49,597 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 17:14:49,604 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 17:14:49,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:49,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:49,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:49,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:49,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:49,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:49,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:49,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:14:49,625 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 17:14:49,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:49,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:49,627 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 17:14:49,640 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 17:14:49,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:49,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:49,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:49,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:49,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:49,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:49,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:49,653 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 17:14:49,661 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:14:49,669 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-10-12 17:14:49,669 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:14:49,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:49,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:49,675 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 17:14:49,679 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:14:49,679 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:14:49,680 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:14:49,680 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n1) = 1*n1 Supporting invariants [] [2023-10-12 17:14:49,686 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 17:14:49,687 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 17:14:49,687 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:14:49,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:49,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:14:49,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:49,713 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:14:49,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:49,728 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 17:14:49,729 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:14:49,729 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 333 states and 1434 transitions. cyclomatic complexity: 1164 Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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 17:14:49,825 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 333 states and 1434 transitions. cyclomatic complexity: 1164. Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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 1147 states and 5175 transitions. Complement of second has 6 states. [2023-10-12 17:14:49,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:14:49,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) 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 17:14:49,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 50 transitions. [2023-10-12 17:14:49,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:14:49,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:49,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:14:49,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:49,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:14:49,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:49,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1147 states and 5175 transitions. [2023-10-12 17:14:49,844 INFO L131 ngComponentsAnalysis]: Automaton has 72 accepting balls. 182 [2023-10-12 17:14:49,856 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1147 states to 906 states and 4048 transitions. [2023-10-12 17:14:49,856 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 300 [2023-10-12 17:14:49,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 444 [2023-10-12 17:14:49,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 906 states and 4048 transitions. [2023-10-12 17:14:49,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:14:49,859 INFO L219 hiAutomatonCegarLoop]: Abstraction has 906 states and 4048 transitions. [2023-10-12 17:14:49,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states and 4048 transitions. [2023-10-12 17:14:49,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 762. [2023-10-12 17:14:49,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 762 states have (on average 4.652230971128609) internal successors, (3545), 761 states have internal predecessors, (3545), 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 17:14:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 3545 transitions. [2023-10-12 17:14:49,934 INFO L241 hiAutomatonCegarLoop]: Abstraction has 762 states and 3545 transitions. [2023-10-12 17:14:49,934 INFO L430 stractBuchiCegarLoop]: Abstraction has 762 states and 3545 transitions. [2023-10-12 17:14:49,936 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:14:49,936 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 762 states and 3545 transitions. [2023-10-12 17:14:49,943 INFO L131 ngComponentsAnalysis]: Automaton has 72 accepting balls. 182 [2023-10-12 17:14:49,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:14:49,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:14:49,944 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-10-12 17:14:49,944 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-10-12 17:14:49,944 INFO L748 eck$LassoCheckResult]: Stem: 3283#[$Ultimate##0]don't care [71] $Ultimate##0-->L63: Formula: (and (= v_n2_1 v_n1_11) (= v_p1_5 v_p2_1)) InVars {p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} OutVars{p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} AuxVars[] AssignedVars[] 2971#[L63]don't care [96] L63-->L19-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 2973#[L63-1, L19-1]don't care [99] L63-1-->L30-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 3631#[L19-1, L30-1, L64]don't care [102] L64-->L41-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 3459#[L19-1, L65, L30-1, L41-1]don't care [2023-10-12 17:14:49,944 INFO L750 eck$LassoCheckResult]: Loop: 3459#[L19-1, L65, L30-1, L41-1]don't care [87] L41-1-->L41: Formula: (< 0 v_n2_6) InVars {n2=v_n2_6} OutVars{n2=v_n2_6} AuxVars[] AssignedVars[] 3845#[L41, L19-1, L65, L30-1]don't care [89] L41-->L41-1: Formula: (let ((.cse0 (< 0 v_n2_17))) (and (= (ite .cse0 (+ (- 1) v_n2_17) v_n2_17) v_n2_16) (= v_p2_11 (ite .cse0 (+ v_m_11 v_p2_12) v_p2_12)))) InVars {m=v_m_11, n2=v_n2_17, p2=v_p2_12} OutVars{m=v_m_11, n2=v_n2_16, p2=v_p2_11} AuxVars[] AssignedVars[n2, p2] 3459#[L19-1, L65, L30-1, L41-1]don't care [2023-10-12 17:14:49,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:49,945 INFO L85 PathProgramCache]: Analyzing trace with hash 3134109, now seen corresponding path program 1 times [2023-10-12 17:14:49,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:49,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688993390] [2023-10-12 17:14:49,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-10-12 17:14:49,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:49,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:49,971 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:49,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:49,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:49,975 INFO L85 PathProgramCache]: Analyzing trace with hash 3747, now seen corresponding path program 1 times [2023-10-12 17:14:49,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:49,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015847772] [2023-10-12 17:14:49,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:49,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:49,978 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:49,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:49,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:49,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1283085761, now seen corresponding path program 1 times [2023-10-12 17:14:49,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:49,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836178144] [2023-10-12 17:14:49,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:49,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:50,001 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 17:14:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:50,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:50,008 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:50,025 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:50,025 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:50,025 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:50,025 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:50,025 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:14:50,026 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:50,026 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:50,026 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:50,026 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration3_Loop [2023-10-12 17:14:50,026 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:50,026 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:50,027 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 17:14:50,029 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:50,054 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:50,054 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:14:50,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:50,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:50,055 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 17:14:50,057 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 17:14:50,058 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:50,058 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:50,066 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:14:50,066 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {m=0, p2=0} Honda state: {m=0, p2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:14:50,069 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 17:14:50,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:50,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:50,070 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 17:14:50,071 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 17:14:50,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:50,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:50,082 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 17:14:50,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:50,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:50,083 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 17:14:50,084 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 17:14:50,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:14:50,085 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:50,125 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:14:50,128 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 17:14:50,129 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:50,129 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:50,129 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:50,129 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:50,129 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:14:50,129 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:50,129 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:50,129 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:50,129 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration3_Loop [2023-10-12 17:14:50,129 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:50,130 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:50,130 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:50,134 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 17:14:50,160 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:50,160 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:14:50,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:50,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:50,161 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 17:14:50,172 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 17:14:50,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:50,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:50,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:50,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:50,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:50,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:50,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:50,183 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 17:14:50,194 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:14:50,199 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 17:14:50,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:50,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:50,200 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 17:14:50,202 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 17:14:50,203 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 17:14:50,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:50,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:50,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:50,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:50,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:50,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:50,211 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:50,233 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:14:50,236 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:14:50,236 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:14:50,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:50,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:50,241 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 17:14:50,245 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:14:50,245 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:14:50,245 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:14:50,245 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n2) = 1*n2 Supporting invariants [] [2023-10-12 17:14:50,252 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 17:14:50,252 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 17:14:50,253 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:14:50,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:50,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:14:50,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:50,281 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:14:50,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:50,292 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 17:14:50,293 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:14:50,293 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 762 states and 3545 transitions. cyclomatic complexity: 2918 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:14:50,395 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 762 states and 3545 transitions. cyclomatic complexity: 2918. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 3268 states and 15146 transitions. Complement of second has 7 states. [2023-10-12 17:14:50,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:14:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:14:50,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 67 transitions. [2023-10-12 17:14:50,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 67 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:14:50,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:50,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 67 transitions. Stem has 6 letters. Loop has 2 letters. [2023-10-12 17:14:50,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:50,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 67 transitions. Stem has 4 letters. Loop has 4 letters. [2023-10-12 17:14:50,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:50,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3268 states and 15146 transitions. [2023-10-12 17:14:50,439 INFO L131 ngComponentsAnalysis]: Automaton has 39 accepting balls. 135 [2023-10-12 17:14:50,465 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3268 states to 2055 states and 9591 transitions. [2023-10-12 17:14:50,465 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 535 [2023-10-12 17:14:50,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 708 [2023-10-12 17:14:50,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2055 states and 9591 transitions. [2023-10-12 17:14:50,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:14:50,467 INFO L219 hiAutomatonCegarLoop]: Abstraction has 2055 states and 9591 transitions. [2023-10-12 17:14:50,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states and 9591 transitions. [2023-10-12 17:14:50,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 1602. [2023-10-12 17:14:50,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1602 states, 1602 states have (on average 4.938202247191011) internal successors, (7911), 1601 states have internal predecessors, (7911), 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 17:14:50,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1602 states to 1602 states and 7911 transitions. [2023-10-12 17:14:50,518 INFO L241 hiAutomatonCegarLoop]: Abstraction has 1602 states and 7911 transitions. [2023-10-12 17:14:50,519 INFO L430 stractBuchiCegarLoop]: Abstraction has 1602 states and 7911 transitions. [2023-10-12 17:14:50,519 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:14:50,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1602 states and 7911 transitions. [2023-10-12 17:14:50,531 INFO L131 ngComponentsAnalysis]: Automaton has 39 accepting balls. 135 [2023-10-12 17:14:50,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:14:50,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:14:50,531 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-10-12 17:14:50,531 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-10-12 17:14:50,536 INFO L748 eck$LassoCheckResult]: Stem: 8070#[$Ultimate##0]don't care [71] $Ultimate##0-->L63: Formula: (and (= v_n2_1 v_n1_11) (= v_p1_5 v_p2_1)) InVars {p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} OutVars{p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} AuxVars[] AssignedVars[] 7804#[L63]don't care [96] L63-->L19-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 7806#[L63-1, L19-1]don't care [99] L63-1-->L30-1: 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] 8596#[L19-1, L30-1, L64]don't care [102] L64-->L41-1: 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] 8678#[L19-1, L65, L30-1, L41-1]don't care [105] L65-->L52-1: 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] 8336#[L52-1, L66, L41-1, L19-1, L30-1]don't care [2023-10-12 17:14:50,537 INFO L750 eck$LassoCheckResult]: Loop: 8336#[L52-1, L66, L41-1, L19-1, L30-1]don't care [91] L52-1-->L52: Formula: (< 1 v_n2_7) InVars {n2=v_n2_7} OutVars{n2=v_n2_7} AuxVars[] AssignedVars[] 10470#[L66, L41-1, L52, L19-1, L30-1]don't care [93] L52-->L52-1: Formula: (let ((.cse0 (< 1 v_n2_13))) (and (= (ite .cse0 (+ (- 2) v_n2_13) v_n2_13) v_n2_12) (= v_p2_7 (ite .cse0 (+ (* 2 v_m_5) v_p2_8) v_p2_8)))) InVars {m=v_m_5, n2=v_n2_13, p2=v_p2_8} OutVars{m=v_m_5, n2=v_n2_12, p2=v_p2_7} AuxVars[] AssignedVars[n2, p2] 8336#[L52-1, L66, L41-1, L19-1, L30-1]don't care [2023-10-12 17:14:50,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:50,537 INFO L85 PathProgramCache]: Analyzing trace with hash 97157484, now seen corresponding path program 1 times [2023-10-12 17:14:50,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:50,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080490373] [2023-10-12 17:14:50,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:50,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:50,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:50,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:50,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:50,548 INFO L85 PathProgramCache]: Analyzing trace with hash 3875, now seen corresponding path program 1 times [2023-10-12 17:14:50,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:50,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324052787] [2023-10-12 17:14:50,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:50,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:50,551 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:50,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:50,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:50,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1120935474, now seen corresponding path program 1 times [2023-10-12 17:14:50,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:50,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010868163] [2023-10-12 17:14:50,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:50,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:50,560 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:50,565 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:50,586 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:50,586 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:50,586 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:50,587 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:50,587 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:14:50,587 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:50,587 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:50,587 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:50,587 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration4_Loop [2023-10-12 17:14:50,587 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:50,587 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:50,588 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 17:14:50,592 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 17:14:50,636 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 17:14:50,640 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:50,640 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:14:50,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:50,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:50,641 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 17:14:50,645 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 17:14:50,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:50,647 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:50,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-10-12 17:14:50,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:50,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:50,659 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 17:14:50,660 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 17:14:50,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:14:50,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:50,676 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:14:50,680 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 17:14:50,680 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:50,680 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:50,680 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:50,680 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:50,680 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:14:50,680 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:50,680 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:50,680 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:50,680 INFO L133 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_BEv2_Iteration4_Loop [2023-10-12 17:14:50,680 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:50,680 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:50,681 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 17:14:50,686 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:50,710 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:50,710 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:14:50,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:50,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:50,711 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 17:14:50,722 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 17:14:50,729 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 17:14:50,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:50,730 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:50,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:50,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:50,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:50,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:50,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:50,732 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:14:50,734 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-10-12 17:14:50,734 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:14:50,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:50,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:50,735 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 17:14:50,737 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 17:14:50,738 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:14:50,738 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:14:50,738 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:14:50,738 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n2) = 1*n2 Supporting invariants [] [2023-10-12 17:14:50,745 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 17:14:50,745 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:14:50,756 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:50,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:14:50,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:50,775 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:14:50,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:50,785 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 17:14:50,785 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:14:50,785 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1602 states and 7911 transitions. cyclomatic complexity: 6473 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:14:50,894 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1602 states and 7911 transitions. cyclomatic complexity: 6473. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 5255 states and 25976 transitions. Complement of second has 6 states. [2023-10-12 17:14:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:14:50,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:14:50,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2023-10-12 17:14:50,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 54 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:14:50,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:50,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 54 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:14:50,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:50,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 54 transitions. Stem has 5 letters. Loop has 4 letters. [2023-10-12 17:14:50,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:50,897 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5255 states and 25976 transitions. [2023-10-12 17:14:50,962 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:14:50,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5255 states to 0 states and 0 transitions. [2023-10-12 17:14:50,962 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-10-12 17:14:50,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-10-12 17:14:50,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-10-12 17:14:50,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:14:50,964 INFO L219 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:14:50,964 INFO L241 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:14:50,964 INFO L430 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:14:50,964 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:14:50,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-10-12 17:14:50,964 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:14:50,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-10-12 17:14:50,971 INFO L201 PluginConnector]: Adding new model hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:14:50 BoogieIcfgContainer [2023-10-12 17:14:50,971 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:14:50,973 INFO L158 Benchmark]: Toolchain (without parser) took 3287.81ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 145.5MB in the beginning and 122.3MB in the end (delta: 23.2MB). Peak memory consumption was 62.2MB. Max. memory is 8.0GB. [2023-10-12 17:14:50,973 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.29ms. Allocated memory is still 190.8MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:14:50,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.28ms. Allocated memory is still 190.8MB. Free memory was 145.5MB in the beginning and 144.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:14:50,974 INFO L158 Benchmark]: Boogie Preprocessor took 24.40ms. Allocated memory is still 190.8MB. Free memory was 144.1MB in the beginning and 143.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:14:50,974 INFO L158 Benchmark]: RCFGBuilder took 268.82ms. Allocated memory is still 190.8MB. Free memory was 142.8MB in the beginning and 164.4MB in the end (delta: -21.7MB). Peak memory consumption was 16.1MB. Max. memory is 8.0GB. [2023-10-12 17:14:50,974 INFO L158 Benchmark]: BuchiAutomizer took 2962.62ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 164.2MB in the beginning and 122.3MB in the end (delta: 41.9MB). Peak memory consumption was 81.8MB. Max. memory is 8.0GB. [2023-10-12 17:14:50,976 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 0.29ms. Allocated memory is still 190.8MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.28ms. Allocated memory is still 190.8MB. Free memory was 145.5MB in the beginning and 144.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.40ms. Allocated memory is still 190.8MB. Free memory was 144.1MB in the beginning and 143.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 268.82ms. Allocated memory is still 190.8MB. Free memory was 142.8MB in the beginning and 164.4MB in the end (delta: -21.7MB). Peak memory consumption was 16.1MB. Max. memory is 8.0GB. * BuchiAutomizer took 2962.62ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 164.2MB in the beginning and 122.3MB in the end (delta: 41.9MB). Peak memory consumption was 81.8MB. 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). One deterministic module has affine ranking function n1 and consists of 5 locations. One deterministic module has affine ranking function n1 and consists of 4 locations. One deterministic module has affine ranking function n2 and consists of 5 locations. One deterministic module has affine ranking function n2 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 756 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.2s 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: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 128 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 271 IncrementalHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 26 mSDtfsCounter, 271 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf96 smp100 dnf100 smp100 tf112 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 38 PlacesBefore, 32 PlacesAfterwards, 29 TransitionsBefore, 23 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 468 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 382, independent: 358, independent conditional: 0, independent unconditional: 358, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 175, independent: 171, independent conditional: 0, independent unconditional: 171, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 175, independent: 163, independent conditional: 0, independent unconditional: 163, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 49, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 382, independent: 187, independent conditional: 0, independent unconditional: 187, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 175, unknown conditional: 0, unknown unconditional: 175] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:14:50,987 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 17:14:51,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...