/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/POPL2023/map-comp.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:12:24,611 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:12:24,664 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 17:12:24,682 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:12:24,683 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:12:24,684 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:12:24,685 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:12:24,685 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:12:24,685 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:12:24,689 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:12:24,689 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:12:24,689 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:12:24,689 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:12:24,691 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:12:24,691 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:12:24,691 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:12:24,692 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:12:24,692 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:12:24,692 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:12:24,692 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:12:24,692 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:12:24,693 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:12:24,693 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:12:24,693 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:12:24,693 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:12:24,693 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:12:24,694 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:12:24,695 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:12:24,695 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:12:24,695 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:12:24,696 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:12:24,696 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:12:24,696 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:12:24,697 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:12:24,697 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:12:24,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:12:24,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:12:24,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:12:24,922 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:12:24,924 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:12:24,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/map-comp.bpl [2023-10-12 17:12:24,925 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/map-comp.bpl' [2023-10-12 17:12:24,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:12:24,951 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:12:24,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:24,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:12:24,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:12:24,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "map-comp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:24" (1/1) ... [2023-10-12 17:12:24,971 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "map-comp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:24" (1/1) ... [2023-10-12 17:12:24,976 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:12:24,978 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:24,979 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:12:24,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:12:24,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:12:24,987 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "map-comp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:24" (1/1) ... [2023-10-12 17:12:24,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "map-comp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:24" (1/1) ... [2023-10-12 17:12:24,989 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "map-comp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:24" (1/1) ... [2023-10-12 17:12:24,989 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "map-comp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:24" (1/1) ... [2023-10-12 17:12:24,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "map-comp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:24" (1/1) ... [2023-10-12 17:12:24,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "map-comp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:24" (1/1) ... [2023-10-12 17:12:24,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "map-comp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:24" (1/1) ... [2023-10-12 17:12:24,996 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "map-comp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:24" (1/1) ... [2023-10-12 17:12:24,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:12:24,998 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:12:24,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:12:24,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:12:24,999 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "map-comp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:24" (1/1) ... [2023-10-12 17:12:25,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:25,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:25,034 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 17:12:25,049 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 17:12:25,074 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:12:25,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:12:25,077 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:12:25,078 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:12:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:12:25,079 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:12:25,079 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:12:25,079 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:12:25,079 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:12:25,080 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:12:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:12:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:12:25,082 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 17:12:25,121 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:12:25,122 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:12:25,214 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:12:25,220 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:12:25,220 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:12:25,222 INFO L201 PluginConnector]: Adding new model map-comp.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:25 BoogieIcfgContainer [2023-10-12 17:12:25,222 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:12:25,223 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:12:25,223 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:12:25,226 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:12:25,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:25,227 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "map-comp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:24" (1/2) ... [2023-10-12 17:12:25,228 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dbc665b and model type map-comp.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:12:25, skipping insertion in model container [2023-10-12 17:12:25,228 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:25,228 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "map-comp.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:25" (2/2) ... [2023-10-12 17:12:25,229 INFO L332 chiAutomizerObserver]: Analyzing ICFG map-comp.bpl [2023-10-12 17:12:25,305 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:12:25,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 35 transitions, 94 flow [2023-10-12 17:12:25,372 INFO L124 PetriNetUnfolderBase]: 3/29 cut-off events. [2023-10-12 17:12:25,372 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:12:25,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 29 events. 3/29 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-10-12 17:12:25,376 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 35 transitions, 94 flow [2023-10-12 17:12:25,380 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 29 transitions, 76 flow [2023-10-12 17:12:25,383 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:12:25,410 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 29 transitions, 76 flow [2023-10-12 17:12:25,413 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 29 transitions, 76 flow [2023-10-12 17:12:25,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 29 transitions, 76 flow [2023-10-12 17:12:25,449 INFO L124 PetriNetUnfolderBase]: 3/29 cut-off events. [2023-10-12 17:12:25,450 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:12:25,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 29 events. 3/29 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-10-12 17:12:25,451 INFO L119 LiptonReduction]: Number of co-enabled transitions 288 [2023-10-12 17:12:25,720 INFO L134 LiptonReduction]: Checked pairs total: 168 [2023-10-12 17:12:25,720 INFO L136 LiptonReduction]: Total number of compositions: 11 [2023-10-12 17:12:25,737 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:12:25,737 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:12:25,737 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:12:25,737 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:12:25,738 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:12:25,738 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:12:25,738 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:12:25,738 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:12:25,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:12:25,775 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 31 [2023-10-12 17:12:25,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:25,776 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:25,780 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:12:25,780 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:25,781 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:12:25,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 55 states, but on-demand construction may add more states [2023-10-12 17:12:25,786 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 31 [2023-10-12 17:12:25,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:25,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:25,787 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:12:25,787 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:25,791 INFO L748 eck$LassoCheckResult]: Stem: 42#[$Ultimate##0]don't care [107] $Ultimate##0-->L18: Formula: (and (= v_A_18 v_B_12) (<= 0 v_k_6) (< v_k_6 v_N_20)) InVars {A=v_A_18, N=v_N_20, k=v_k_6} OutVars{A=v_A_18, N=v_N_20, k=v_k_6, B=v_B_12} AuxVars[] AssignedVars[B] 45#[L18]don't care [90] L18-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_14} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_i] 47#[L18-1, $Ultimate##0]don't care [70] $Ultimate##0-->L34-1: Formula: (= v_thread1Thread1of1ForFork0_i_1 0) InVars {} OutVars{thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i] 49#[L34-1, L18-1]don't care [2023-10-12 17:12:25,791 INFO L750 eck$LassoCheckResult]: Loop: 49#[L34-1, L18-1]don't care [110] L34-1-->L34-1: Formula: (and (= v_thread1Thread1of1ForFork0_i_23 (+ v_thread1Thread1of1ForFork0_i_24 1)) (= v_A_36 (store v_A_37 v_thread1Thread1of1ForFork0_i_24 (+ (select v_A_37 v_thread1Thread1of1ForFork0_i_24) 1))) (< v_thread1Thread1of1ForFork0_i_24 v_N_30)) InVars {A=v_A_37, N=v_N_30, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_24} OutVars{A=v_A_36, N=v_N_30, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_23} AuxVars[] AssignedVars[A, thread1Thread1of1ForFork0_i] 49#[L34-1, L18-1]don't care [2023-10-12 17:12:25,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:25,796 INFO L85 PathProgramCache]: Analyzing trace with hash 135478, now seen corresponding path program 1 times [2023-10-12 17:12:25,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:25,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145411653] [2023-10-12 17:12:25,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:25,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:25,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:25,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:25,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:25,886 INFO L85 PathProgramCache]: Analyzing trace with hash 141, now seen corresponding path program 1 times [2023-10-12 17:12:25,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:25,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264337396] [2023-10-12 17:12:25,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:25,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:25,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:25,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:25,900 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:25,901 INFO L85 PathProgramCache]: Analyzing trace with hash 4199928, now seen corresponding path program 1 times [2023-10-12 17:12:25,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:25,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782072283] [2023-10-12 17:12:25,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:25,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:25,909 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:25,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:25,915 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:25,984 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:25,984 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:25,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:25,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:25,984 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:25,985 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:25,985 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:25,985 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:25,985 INFO L133 ssoRankerPreferences]: Filename of dumped script: map-comp.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:12:25,985 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:25,985 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:25,997 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 17:12:26,025 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 17:12:26,077 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:26,080 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:26,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:26,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:26,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:12:26,087 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 17:12:26,088 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 17:12:26,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:26,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:26,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:26,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:26,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:26,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:26,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:26,113 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:26,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:12:26,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:26,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:26,121 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 17:12:26,122 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 17:12:26,124 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 17:12:26,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:26,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:26,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:26,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:26,138 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:26,139 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:26,160 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:26,187 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:12:26,188 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:12:26,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:26,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:26,193 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 17:12:26,196 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 17:12:26,198 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:26,223 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:12:26,223 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:26,223 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread1Thread1of1ForFork0_i, N) = -1*thread1Thread1of1ForFork0_i + 1*N Supporting invariants [] [2023-10-12 17:12:26,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:26,235 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:12:26,267 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:26,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:26,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:26,296 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:26,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:26,297 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 17:12:26,317 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:12:26,318 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 55 states, but on-demand construction may add more states Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 17:12:26,380 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 55 states, but on-demand construction may add more states. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 144 states and 490 transitions. Complement of second has 4 states. [2023-10-12 17:12:26,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:12:26,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 17:12:26,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2023-10-12 17:12:26,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 36 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:12:26,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:26,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 36 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:12:26,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:26,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 36 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:12:26,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:26,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 144 states and 490 transitions. [2023-10-12 17:12:26,399 INFO L131 ngComponentsAnalysis]: Automaton has 24 accepting balls. 24 [2023-10-12 17:12:26,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 144 states to 103 states and 354 transitions. [2023-10-12 17:12:26,407 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2023-10-12 17:12:26,407 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 80 [2023-10-12 17:12:26,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 354 transitions. [2023-10-12 17:12:26,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:12:26,408 INFO L219 hiAutomatonCegarLoop]: Abstraction has 103 states and 354 transitions. [2023-10-12 17:12:26,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 354 transitions. [2023-10-12 17:12:26,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 82. [2023-10-12 17:12:26,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 3.5853658536585367) internal successors, (294), 81 states have internal predecessors, (294), 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 17:12:26,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 294 transitions. [2023-10-12 17:12:26,436 INFO L241 hiAutomatonCegarLoop]: Abstraction has 82 states and 294 transitions. [2023-10-12 17:12:26,436 INFO L430 stractBuchiCegarLoop]: Abstraction has 82 states and 294 transitions. [2023-10-12 17:12:26,436 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:12:26,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 294 transitions. [2023-10-12 17:12:26,439 INFO L131 ngComponentsAnalysis]: Automaton has 24 accepting balls. 24 [2023-10-12 17:12:26,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:26,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:26,439 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-10-12 17:12:26,439 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:26,440 INFO L748 eck$LassoCheckResult]: Stem: 485#[$Ultimate##0]don't care [107] $Ultimate##0-->L18: Formula: (and (= v_A_18 v_B_12) (<= 0 v_k_6) (< v_k_6 v_N_20)) InVars {A=v_A_18, N=v_N_20, k=v_k_6} OutVars{A=v_A_18, N=v_N_20, k=v_k_6, B=v_B_12} AuxVars[] AssignedVars[B] 471#[L18]don't care [90] L18-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_14} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_i] 465#[L18-1, $Ultimate##0]don't care [93] L18-1-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_i=v_thread2Thread1of1ForFork1_i_14, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_i, thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 467#[L19, $Ultimate##0, $Ultimate##0]don't care [76] $Ultimate##0-->L46-1: Formula: (= v_thread2Thread1of1ForFork1_i_1 0) InVars {} OutVars{thread2Thread1of1ForFork1_i=v_thread2Thread1of1ForFork1_i_1} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_i] 475#[L19, L46-1, $Ultimate##0]don't care [2023-10-12 17:12:26,440 INFO L750 eck$LassoCheckResult]: Loop: 475#[L19, L46-1, $Ultimate##0]don't care [109] L46-1-->L46-1: Formula: (and (< v_thread2Thread1of1ForFork1_i_22 v_N_26) (= v_A_26 (store v_A_27 v_thread2Thread1of1ForFork1_i_22 (+ 2 (select v_A_27 v_thread2Thread1of1ForFork1_i_22)))) (= v_thread2Thread1of1ForFork1_i_21 (+ v_thread2Thread1of1ForFork1_i_22 1))) InVars {A=v_A_27, thread2Thread1of1ForFork1_i=v_thread2Thread1of1ForFork1_i_22, N=v_N_26} OutVars{A=v_A_26, thread2Thread1of1ForFork1_i=v_thread2Thread1of1ForFork1_i_21, N=v_N_26} AuxVars[] AssignedVars[A, thread2Thread1of1ForFork1_i] 475#[L19, L46-1, $Ultimate##0]don't care [2023-10-12 17:12:26,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:26,440 INFO L85 PathProgramCache]: Analyzing trace with hash 4200607, now seen corresponding path program 1 times [2023-10-12 17:12:26,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:26,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325983648] [2023-10-12 17:12:26,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:26,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:26,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:26,450 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:26,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:26,450 INFO L85 PathProgramCache]: Analyzing trace with hash 140, now seen corresponding path program 1 times [2023-10-12 17:12:26,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:26,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85490808] [2023-10-12 17:12:26,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:26,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:26,455 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:26,459 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:26,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:26,459 INFO L85 PathProgramCache]: Analyzing trace with hash 130218926, now seen corresponding path program 1 times [2023-10-12 17:12:26,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:26,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333592262] [2023-10-12 17:12:26,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:26,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:26,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:26,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:26,535 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:26,535 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:26,535 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:26,535 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:26,535 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:26,536 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:26,536 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:26,536 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:26,536 INFO L133 ssoRankerPreferences]: Filename of dumped script: map-comp.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:12:26,536 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:26,536 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:26,540 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 17:12:26,543 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 17:12:26,562 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:26,564 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:26,567 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 17:12:26,597 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 17:12:26,642 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:26,643 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:26,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:26,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:26,645 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 17:12:26,658 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 17:12:26,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:26,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:26,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:26,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:26,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:26,672 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:26,676 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 17:12:26,688 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:26,691 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 17:12:26,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:26,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:26,693 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 17:12:26,702 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 17:12:26,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:26,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:26,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:26,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:26,712 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 17:12:26,720 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:26,720 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:26,737 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:26,753 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-10-12 17:12:26,753 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:12:26,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:26,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:26,754 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 17:12:26,756 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 17:12:26,758 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:26,764 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:12:26,765 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:26,765 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread2Thread1of1ForFork1_i, N) = -1*thread2Thread1of1ForFork1_i + 1*N Supporting invariants [] [2023-10-12 17:12:26,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:26,771 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:12:26,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:26,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:26,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:26,822 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:26,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:26,824 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 17:12:26,825 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:12:26,825 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 294 transitions. cyclomatic complexity: 248 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 17:12:26,878 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 294 transitions. cyclomatic complexity: 248. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 224 states and 842 transitions. Complement of second has 4 states. [2023-10-12 17:12:26,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:12:26,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 17:12:26,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2023-10-12 17:12:26,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:12:26,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:26,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:12:26,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:26,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:12:26,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:26,882 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 224 states and 842 transitions. [2023-10-12 17:12:26,894 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 13 [2023-10-12 17:12:26,899 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 224 states to 148 states and 549 transitions. [2023-10-12 17:12:26,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2023-10-12 17:12:26,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 80 [2023-10-12 17:12:26,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 549 transitions. [2023-10-12 17:12:26,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:12:26,901 INFO L219 hiAutomatonCegarLoop]: Abstraction has 148 states and 549 transitions. [2023-10-12 17:12:26,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 549 transitions. [2023-10-12 17:12:26,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 116. [2023-10-12 17:12:26,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 116 states have (on average 3.8189655172413794) internal successors, (443), 115 states have internal predecessors, (443), 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 17:12:26,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 443 transitions. [2023-10-12 17:12:26,923 INFO L241 hiAutomatonCegarLoop]: Abstraction has 116 states and 443 transitions. [2023-10-12 17:12:26,924 INFO L430 stractBuchiCegarLoop]: Abstraction has 116 states and 443 transitions. [2023-10-12 17:12:26,924 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:12:26,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 443 transitions. [2023-10-12 17:12:26,927 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 13 [2023-10-12 17:12:26,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:26,927 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:26,927 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-10-12 17:12:26,927 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:26,928 INFO L748 eck$LassoCheckResult]: Stem: 946#[$Ultimate##0]don't care [107] $Ultimate##0-->L18: Formula: (and (= v_A_18 v_B_12) (<= 0 v_k_6) (< v_k_6 v_N_20)) InVars {A=v_A_18, N=v_N_20, k=v_k_6} OutVars{A=v_A_18, N=v_N_20, k=v_k_6, B=v_B_12} AuxVars[] AssignedVars[B] 930#[L18]don't care [90] L18-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_14} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_i] 924#[L18-1, $Ultimate##0]don't care [93] L18-1-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_i=v_thread2Thread1of1ForFork1_i_14, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_i, thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 926#[L19, $Ultimate##0, $Ultimate##0]don't care [96] L19-->$Ultimate##0: 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_i=v_thread3Thread1of1ForFork2_i_14, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_i, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 850#[$Ultimate##0, L20, $Ultimate##0, $Ultimate##0]don't care [82] $Ultimate##0-->L58-1: Formula: (= v_thread3Thread1of1ForFork2_i_1 0) InVars {} OutVars{thread3Thread1of1ForFork2_i=v_thread3Thread1of1ForFork2_i_1} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_i] 852#[$Ultimate##0, L20, L58-1, $Ultimate##0]don't care [2023-10-12 17:12:26,928 INFO L750 eck$LassoCheckResult]: Loop: 852#[$Ultimate##0, L20, L58-1, $Ultimate##0]don't care [108] L58-1-->L58-1: Formula: (and (= v_thread3Thread1of1ForFork2_i_19 (+ v_thread3Thread1of1ForFork2_i_20 1)) (= (store v_B_15 v_thread3Thread1of1ForFork2_i_20 (+ (select v_B_15 v_thread3Thread1of1ForFork2_i_20) 3)) v_B_14) (< v_thread3Thread1of1ForFork2_i_20 v_N_22)) InVars {N=v_N_22, thread3Thread1of1ForFork2_i=v_thread3Thread1of1ForFork2_i_20, B=v_B_15} OutVars{N=v_N_22, thread3Thread1of1ForFork2_i=v_thread3Thread1of1ForFork2_i_19, B=v_B_14} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_i, B] 852#[$Ultimate##0, L20, L58-1, $Ultimate##0]don't care [2023-10-12 17:12:26,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:26,929 INFO L85 PathProgramCache]: Analyzing trace with hash 130219519, now seen corresponding path program 1 times [2023-10-12 17:12:26,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:26,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88676783] [2023-10-12 17:12:26,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:26,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:26,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:26,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:26,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:26,955 INFO L85 PathProgramCache]: Analyzing trace with hash 139, now seen corresponding path program 1 times [2023-10-12 17:12:26,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:26,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550029528] [2023-10-12 17:12:26,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:26,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:26,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:26,969 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:26,970 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:26,970 INFO L85 PathProgramCache]: Analyzing trace with hash -258162099, now seen corresponding path program 1 times [2023-10-12 17:12:26,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:26,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439927764] [2023-10-12 17:12:26,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:26,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:26,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:26,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:27,087 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:27,088 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:27,088 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:27,088 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:27,088 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:27,088 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:27,088 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:27,088 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:27,088 INFO L133 ssoRankerPreferences]: Filename of dumped script: map-comp.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:12:27,088 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:27,088 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:27,091 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:27,093 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:12:27,095 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 17:12:27,108 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 17:12:27,111 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 17:12:27,113 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 17:12:27,117 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 17:12:27,119 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 17:12:27,121 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 17:12:27,203 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:27,203 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:27,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:27,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:27,205 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 17:12:27,216 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 17:12:27,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:27,223 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:27,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:27,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:27,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:27,224 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:27,224 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:27,227 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 17:12:27,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:27,241 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 17:12:27,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:27,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:27,242 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 17:12:27,244 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 17:12:27,247 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 17:12:27,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:27,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:27,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:27,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:27,255 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:27,256 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:27,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:27,274 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 17:12:27,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:27,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:27,421 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 17:12:27,423 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 17:12:27,471 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 17:12:27,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:27,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:27,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:27,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:27,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:27,481 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:27,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:27,510 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:27,513 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 17:12:27,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:27,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:27,515 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 17:12:27,517 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 17:12:27,525 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 17:12:27,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:27,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:12:27,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:27,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:27,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:27,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:12:27,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:12:27,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:27,557 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 17:12:27,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:27,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:27,559 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 17:12:27,565 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 17:12:27,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:27,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:27,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:27,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:27,579 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:27,579 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:27,582 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 17:12:27,601 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:27,611 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-10-12 17:12:27,611 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-10-12 17:12:27,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:27,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:27,620 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 17:12:27,624 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:27,632 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 17:12:27,646 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:12:27,647 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:27,647 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread3Thread1of1ForFork2_i, N) = -1*thread3Thread1of1ForFork2_i + 1*N Supporting invariants [] [2023-10-12 17:12:27,653 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 17:12:27,654 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:12:27,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:27,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:12:27,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:27,700 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:27,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:27,701 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 17:12:27,701 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:12:27,701 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 116 states and 443 transitions. cyclomatic complexity: 367 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 17:12:27,742 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 116 states and 443 transitions. cyclomatic complexity: 367. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 232 states and 840 transitions. Complement of second has 4 states. [2023-10-12 17:12:27,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:12:27,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 17:12:27,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2023-10-12 17:12:27,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:12:27,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:27,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 6 letters. Loop has 1 letters. [2023-10-12 17:12:27,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:27,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:12:27,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:27,745 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 232 states and 840 transitions. [2023-10-12 17:12:27,749 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:12:27,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 232 states to 0 states and 0 transitions. [2023-10-12 17:12:27,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-10-12 17:12:27,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-10-12 17:12:27,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-10-12 17:12:27,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:12:27,749 INFO L219 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:12:27,750 INFO L241 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:12:27,750 INFO L430 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:12:27,750 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:12:27,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-10-12 17:12:27,750 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:12:27,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-10-12 17:12:27,756 INFO L201 PluginConnector]: Adding new model map-comp.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:12:27 BoogieIcfgContainer [2023-10-12 17:12:27,756 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:12:27,758 INFO L158 Benchmark]: Toolchain (without parser) took 2806.12ms. Allocated memory was 188.7MB in the beginning and 282.1MB in the end (delta: 93.3MB). Free memory was 142.5MB in the beginning and 194.9MB in the end (delta: -52.4MB). Peak memory consumption was 42.0MB. Max. memory is 8.0GB. [2023-10-12 17:12:27,758 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.27ms. Allocated memory is still 188.7MB. Free memory is still 143.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:12:27,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.56ms. Allocated memory is still 188.7MB. Free memory was 142.3MB in the beginning and 140.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:12:27,759 INFO L158 Benchmark]: Boogie Preprocessor took 18.63ms. Allocated memory is still 188.7MB. Free memory was 140.9MB in the beginning and 139.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:12:27,759 INFO L158 Benchmark]: RCFGBuilder took 223.97ms. Allocated memory is still 188.7MB. Free memory was 139.7MB in the beginning and 130.0MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:12:27,760 INFO L158 Benchmark]: BuchiAutomizer took 2533.75ms. Allocated memory was 188.7MB in the beginning and 282.1MB in the end (delta: 93.3MB). Free memory was 129.9MB in the beginning and 194.9MB in the end (delta: -65.0MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-10-12 17:12:27,761 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 0.27ms. Allocated memory is still 188.7MB. Free memory is still 143.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.56ms. Allocated memory is still 188.7MB. Free memory was 142.3MB in the beginning and 140.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.63ms. Allocated memory is still 188.7MB. Free memory was 140.9MB in the beginning and 139.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 223.97ms. Allocated memory is still 188.7MB. Free memory was 139.7MB in the beginning and 130.0MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2533.75ms. Allocated memory was 188.7MB in the beginning and 282.1MB in the end (delta: 93.3MB). Free memory was 129.9MB in the beginning and 194.9MB in the end (delta: -65.0MB). Peak memory consumption was 29.4MB. 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 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + N and consists of 3 locations. One deterministic module has affine ranking function -1 * i + N and consists of 3 locations. One deterministic module has affine ranking function -1 * i + N and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 53 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 80 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 16 mSDtfsCounter, 80 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital42 mio100 ax100 hnf100 lsp77 ukn59 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf100 neg100 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 105ms VariablesStem: 3 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.4s - 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: 0.3s, 36 PlacesBefore, 25 PlacesAfterwards, 29 TransitionsBefore, 18 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 168 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 168, independent: 168, independent conditional: 0, independent unconditional: 168, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 144, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 144, independent: 142, independent conditional: 0, independent unconditional: 142, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 168, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 144, unknown conditional: 0, unknown unconditional: 144] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:12:27,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:27,987 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 17:12:28,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...