/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_AUTOMATON -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:13:37,552 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:13:37,617 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 17:13:37,637 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:13:37,637 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:13:37,638 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:13:37,639 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:13:37,639 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:13:37,639 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:13:37,640 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:13:37,640 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:13:37,640 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:13:37,641 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:13:37,641 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:13:37,641 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:13:37,642 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:13:37,642 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:13:37,642 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:13:37,643 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:13:37,643 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:13:37,643 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:13:37,646 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:13:37,646 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:13:37,647 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:13:37,647 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:13:37,647 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:13:37,647 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:13:37,648 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:13:37,648 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:13:37,648 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:13:37,649 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:13:37,649 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:13:37,649 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:13:37,650 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:13:37,650 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:13:37,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:13:37,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:13:37,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:13:37,902 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:13:37,902 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:13:37,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl [2023-10-12 17:13:37,904 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl' [2023-10-12 17:13:37,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:13:37,938 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:13:37,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:13:37,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:13:37,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:13:37,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:37" (1/1) ... [2023-10-12 17:13:37,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:37" (1/1) ... [2023-10-12 17:13:37,966 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:13:37,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:13:37,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:13:37,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:13:37,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:13:37,977 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:37" (1/1) ... [2023-10-12 17:13:37,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:37" (1/1) ... [2023-10-12 17:13:37,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:37" (1/1) ... [2023-10-12 17:13:37,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:37" (1/1) ... [2023-10-12 17:13:37,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:37" (1/1) ... [2023-10-12 17:13:37,990 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:37" (1/1) ... [2023-10-12 17:13:37,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:37" (1/1) ... [2023-10-12 17:13:37,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:37" (1/1) ... [2023-10-12 17:13:37,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:13:37,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:13:37,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:13:37,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:13:37,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:37" (1/1) ... [2023-10-12 17:13:38,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:38,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:38,030 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 17:13:38,034 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 17:13:38,064 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:13:38,068 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:13:38,069 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:13:38,069 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:13:38,069 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:13:38,069 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:13:38,069 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:13:38,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:13:38,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:13:38,070 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:13:38,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:13:38,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:13:38,071 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:13:38,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:13:38,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:13:38,072 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 17:13:38,122 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:13:38,124 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:13:38,216 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:13:38,247 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:13:38,248 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-10-12 17:13:38,248 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2023-10-12 17:13:38,249 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2023-10-12 17:13:38,249 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread4EXIT is neither atomic block end nor error location. [2023-10-12 17:13:38,250 INFO L201 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:13:38 BoogieIcfgContainer [2023-10-12 17:13:38,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:13:38,251 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:13:38,251 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:13:38,263 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:13:38,264 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:13:38,264 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:37" (1/2) ... [2023-10-12 17:13:38,265 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76e4092b and model type parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:13:38, skipping insertion in model container [2023-10-12 17:13:38,265 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:13:38,265 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:13:38" (2/2) ... [2023-10-12 17:13:38,266 INFO L332 chiAutomizerObserver]: Analyzing ICFG parallel-sum-equiv.wvr.bpl [2023-10-12 17:13:38,349 INFO L144 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2023-10-12 17:13:38,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 37 transitions, 118 flow [2023-10-12 17:13:38,424 INFO L124 PetriNetUnfolderBase]: 5/26 cut-off events. [2023-10-12 17:13:38,424 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:13:38,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 26 events. 5/26 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 28 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 29. Up to 3 conditions per place. [2023-10-12 17:13:38,428 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 37 transitions, 118 flow [2023-10-12 17:13:38,432 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 26 transitions, 82 flow [2023-10-12 17:13:38,434 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:13:38,446 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 26 transitions, 82 flow [2023-10-12 17:13:38,449 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 26 transitions, 82 flow [2023-10-12 17:13:38,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 26 transitions, 82 flow [2023-10-12 17:13:38,456 INFO L124 PetriNetUnfolderBase]: 5/26 cut-off events. [2023-10-12 17:13:38,456 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:13:38,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 26 events. 5/26 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 28 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 29. Up to 3 conditions per place. [2023-10-12 17:13:38,458 INFO L119 LiptonReduction]: Number of co-enabled transitions 184 [2023-10-12 17:13:38,611 INFO L134 LiptonReduction]: Checked pairs total: 231 [2023-10-12 17:13:38,612 INFO L136 LiptonReduction]: Total number of compositions: 6 [2023-10-12 17:13:38,628 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:13:38,628 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:13:38,628 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:13:38,629 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:13:38,629 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:13:38,629 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:13:38,629 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:13:38,629 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:13:38,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:13:38,667 INFO L131 ngComponentsAnalysis]: Automaton has 28 accepting balls. 28 [2023-10-12 17:13:38,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:38,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:38,672 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:13:38,673 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:38,673 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:13:38,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 54 states, but on-demand construction may add more states [2023-10-12 17:13:38,678 INFO L131 ngComponentsAnalysis]: Automaton has 28 accepting balls. 28 [2023-10-12 17:13:38,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:38,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:38,679 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:13:38,679 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:38,683 INFO L748 eck$LassoCheckResult]: Stem: 44#[$Ultimate##0]don't care [98] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 47#[$Ultimate##0, L81]don't care [80] $Ultimate##0-->L50: Formula: (and (= v_i_3_28 0) (= v_s_2_7 0)) InVars {} OutVars{i_3=v_i_3_28, s_2=v_s_2_7} AuxVars[] AssignedVars[i_3, s_2] 49#[L81, L50]don't care [110] L50-->L22: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_4) (= 2 v_thread2Thread1of1ForFork2_thidvar0_4)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_4, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0] 55#[L81, L54, L22]don't care [2023-10-12 17:13:38,683 INFO L750 eck$LassoCheckResult]: Loop: 55#[L81, L54, L22]don't care [125] L22-->L22: Formula: (and (< v_i_3_39 v_n_1_23) (= (select v_X_0_16 v_i_3_38) v_t_4_9) (= (+ v_i_3_39 1) v_i_3_38) (= (+ v_t_4_9 v_s_2_16) v_s_2_15)) InVars {X_0=v_X_0_16, n_1=v_n_1_23, i_3=v_i_3_39, s_2=v_s_2_16} OutVars{X_0=v_X_0_16, n_1=v_n_1_23, i_3=v_i_3_38, s_2=v_s_2_15, t_4=v_t_4_9} AuxVars[] AssignedVars[i_3, s_2, t_4] 55#[L81, L54, L22]don't care [2023-10-12 17:13:38,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:38,688 INFO L85 PathProgramCache]: Analyzing trace with hash 126559, now seen corresponding path program 1 times [2023-10-12 17:13:38,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:38,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390662614] [2023-10-12 17:13:38,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:38,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:38,760 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:38,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:38,787 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:38,788 INFO L85 PathProgramCache]: Analyzing trace with hash 156, now seen corresponding path program 1 times [2023-10-12 17:13:38,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:38,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118142413] [2023-10-12 17:13:38,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:38,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:38,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:38,815 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:38,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:38,816 INFO L85 PathProgramCache]: Analyzing trace with hash 3923454, now seen corresponding path program 1 times [2023-10-12 17:13:38,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:38,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538710532] [2023-10-12 17:13:38,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:38,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:38,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:38,839 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:38,946 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:38,946 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:38,947 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:38,947 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:38,947 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:38,947 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:38,947 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:38,947 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:38,948 INFO L133 ssoRankerPreferences]: Filename of dumped script: parallel-sum-equiv.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:13:38,948 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:38,948 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:38,965 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 17:13:38,980 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 17:13:38,985 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 17:13:38,989 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 17:13:39,105 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:39,108 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:39,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:39,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:39,121 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 17:13:39,124 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 17:13:39,126 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 17:13:39,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:39,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:39,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:39,133 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:39,137 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:39,138 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:39,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:39,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:39,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:39,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:39,165 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 17:13:39,176 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 17:13:39,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:39,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:39,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:39,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:39,185 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 17:13:39,188 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:39,188 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:39,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:39,211 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 17:13:39,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:39,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:39,225 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 17:13:39,236 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 17:13:39,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:39,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:39,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:39,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:39,248 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 17:13:39,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:39,251 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:39,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:39,281 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 17:13:39,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:39,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:39,283 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 17:13:39,295 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 17:13:39,295 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 17:13:39,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:39,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:39,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:39,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:39,312 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:39,313 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:39,333 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:39,355 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:13:39,355 INFO L444 ModelExtractionUtils]: 7 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:13:39,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:39,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:39,378 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 17:13:39,379 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 17:13:39,396 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:39,403 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:13:39,403 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:39,404 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i_3, n_1) = -1*i_3 + 1*n_1 Supporting invariants [] [2023-10-12 17:13:39,409 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 17:13:39,412 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:39,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:39,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:39,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:39,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:39,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:39,456 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 17:13:39,478 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 17:13:39,480 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 54 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 17:13:39,579 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 54 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 150 states and 492 transitions. Complement of second has 5 states. [2023-10-12 17:13:39,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:13:39,588 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 17:13:39,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2023-10-12 17:13:39,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:13:39,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:39,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:13:39,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:39,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:13:39,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:39,591 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 150 states and 492 transitions. [2023-10-12 17:13:39,599 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 13 [2023-10-12 17:13:39,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 150 states to 93 states and 311 transitions. [2023-10-12 17:13:39,607 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2023-10-12 17:13:39,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 61 [2023-10-12 17:13:39,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 311 transitions. [2023-10-12 17:13:39,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:13:39,608 INFO L219 hiAutomatonCegarLoop]: Abstraction has 93 states and 311 transitions. [2023-10-12 17:13:39,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 311 transitions. [2023-10-12 17:13:39,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 73. [2023-10-12 17:13:39,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 73 states have (on average 3.506849315068493) internal successors, (256), 72 states have internal predecessors, (256), 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 17:13:39,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 256 transitions. [2023-10-12 17:13:39,636 INFO L241 hiAutomatonCegarLoop]: Abstraction has 73 states and 256 transitions. [2023-10-12 17:13:39,636 INFO L430 stractBuchiCegarLoop]: Abstraction has 73 states and 256 transitions. [2023-10-12 17:13:39,636 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:13:39,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 256 transitions. [2023-10-12 17:13:39,638 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 13 [2023-10-12 17:13:39,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:39,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:39,639 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:13:39,639 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:39,639 INFO L748 eck$LassoCheckResult]: Stem: 480#[$Ultimate##0]don't care [98] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 476#[$Ultimate##0, L81]don't care [101] L81-->$Ultimate##0: Formula: (and (= 4 v_thread4Thread1of1ForFork1_thidvar1_2) (= 4 v_thread4Thread1of1ForFork1_thidvar0_2) (= 4 v_thread4Thread1of1ForFork1_thidvar2_2) (= 4 v_thread4Thread1of1ForFork1_thidvar3_2)) InVars {} OutVars{thread4Thread1of1ForFork1_thidvar0=v_thread4Thread1of1ForFork1_thidvar0_2, thread4Thread1of1ForFork1_thidvar1=v_thread4Thread1of1ForFork1_thidvar1_2, thread4Thread1of1ForFork1_thidvar2=v_thread4Thread1of1ForFork1_thidvar2_2, thread4Thread1of1ForFork1_thidvar3=v_thread4Thread1of1ForFork1_thidvar3_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork1_thidvar0, thread4Thread1of1ForFork1_thidvar1, thread4Thread1of1ForFork1_thidvar2, thread4Thread1of1ForFork1_thidvar3] 464#[$Ultimate##0, $Ultimate##0, L82]don't care [92] $Ultimate##0-->L67: Formula: (and (= v_s_6_5 0) (= v_i_7_17 0)) InVars {} OutVars{i_7=v_i_7_17, s_6=v_s_6_5} AuxVars[] AssignedVars[i_7, s_6] 438#[$Ultimate##0, L67, L82]don't care [2023-10-12 17:13:39,640 INFO L750 eck$LassoCheckResult]: Loop: 438#[$Ultimate##0, L67, L82]don't care [128] L67-->L67: Formula: (and (= (+ v_i_7_20 1) v_i_7_19) (= (+ v_t_8_7 v_s_6_10) v_s_6_9) (= (select v_X_0_26 v_i_7_19) v_t_8_7) (< v_i_7_20 v_n_1_33)) InVars {X_0=v_X_0_26, i_7=v_i_7_20, s_6=v_s_6_10, n_1=v_n_1_33} OutVars{X_0=v_X_0_26, i_7=v_i_7_19, s_6=v_s_6_9, t_8=v_t_8_7, n_1=v_n_1_33} AuxVars[] AssignedVars[i_7, s_6, t_8] 438#[$Ultimate##0, L67, L82]don't care [2023-10-12 17:13:39,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:39,640 INFO L85 PathProgramCache]: Analyzing trace with hash 127192, now seen corresponding path program 1 times [2023-10-12 17:13:39,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:39,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712278484] [2023-10-12 17:13:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:39,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:39,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:39,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:39,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:39,650 INFO L85 PathProgramCache]: Analyzing trace with hash 159, now seen corresponding path program 1 times [2023-10-12 17:13:39,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:39,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237945321] [2023-10-12 17:13:39,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:39,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:39,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:39,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:39,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:39,663 INFO L85 PathProgramCache]: Analyzing trace with hash 3943080, now seen corresponding path program 1 times [2023-10-12 17:13:39,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:39,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019115800] [2023-10-12 17:13:39,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:39,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:39,694 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:39,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:39,701 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 17:13:39,768 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:39,769 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:39,769 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:39,769 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:39,769 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:39,769 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:39,769 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:39,769 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:39,769 INFO L133 ssoRankerPreferences]: Filename of dumped script: parallel-sum-equiv.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:13:39,769 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:39,769 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:39,771 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 17:13:39,783 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 17:13:39,786 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 17:13:39,789 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:13:39,792 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 17:13:39,794 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 17:13:39,881 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:39,881 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:39,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:39,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:39,883 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 17:13:39,894 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 17:13:39,894 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 17:13:39,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:39,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:39,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:39,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:39,905 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:39,906 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:39,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:39,935 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 17:13:39,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:39,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:39,938 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 17:13:39,946 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 17:13:39,946 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 17:13:39,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:39,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:39,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:39,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:39,958 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:39,958 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:39,974 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:39,978 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:13:39,978 INFO L444 ModelExtractionUtils]: 7 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:13:39,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:39,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:39,980 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 17:13:39,983 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 17:13:39,984 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:40,000 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:13:40,000 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:40,000 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n_1, i_7) = 1*n_1 - 1*i_7 Supporting invariants [] [2023-10-12 17:13:40,005 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 17:13:40,006 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:40,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:40,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:40,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:40,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:40,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:40,042 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 17:13:40,043 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 17:13:40,043 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 73 states and 256 transitions. cyclomatic complexity: 212 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 17:13:40,106 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 73 states and 256 transitions. cyclomatic complexity: 212. 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 168 states and 575 transitions. Complement of second has 4 states. [2023-10-12 17:13:40,107 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 17:13:40,107 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 17:13:40,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2023-10-12 17:13:40,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:13:40,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:40,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:13:40,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:40,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:13:40,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:40,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 168 states and 575 transitions. [2023-10-12 17:13:40,116 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:13:40,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 168 states to 0 states and 0 transitions. [2023-10-12 17:13:40,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-10-12 17:13:40,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-10-12 17:13:40,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-10-12 17:13:40,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:13:40,118 INFO L219 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:40,118 INFO L241 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:40,118 INFO L430 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:40,118 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:13:40,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-10-12 17:13:40,118 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:13:40,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-10-12 17:13:40,128 INFO L201 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:13:40 BoogieIcfgContainer [2023-10-12 17:13:40,129 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:13:40,130 INFO L158 Benchmark]: Toolchain (without parser) took 2191.42ms. Allocated memory was 186.6MB in the beginning and 262.1MB in the end (delta: 75.5MB). Free memory was 139.7MB in the beginning and 203.5MB in the end (delta: -63.8MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB. [2023-10-12 17:13:40,130 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.26ms. Allocated memory is still 186.6MB. Free memory was 140.9MB in the beginning and 140.7MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:13:40,131 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.40ms. Allocated memory is still 186.6MB. Free memory was 139.5MB in the beginning and 138.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:13:40,131 INFO L158 Benchmark]: Boogie Preprocessor took 23.73ms. Allocated memory is still 186.6MB. Free memory was 138.1MB in the beginning and 137.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:13:40,133 INFO L158 Benchmark]: RCFGBuilder took 255.27ms. Allocated memory is still 186.6MB. Free memory was 136.8MB in the beginning and 125.7MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-10-12 17:13:40,133 INFO L158 Benchmark]: BuchiAutomizer took 1877.37ms. Allocated memory was 186.6MB in the beginning and 262.1MB in the end (delta: 75.5MB). Free memory was 125.5MB in the beginning and 203.5MB in the end (delta: -78.0MB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:13:40,138 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.26ms. Allocated memory is still 186.6MB. Free memory was 140.9MB in the beginning and 140.7MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.40ms. Allocated memory is still 186.6MB. Free memory was 139.5MB in the beginning and 138.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 23.73ms. Allocated memory is still 186.6MB. Free memory was 138.1MB in the beginning and 137.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 255.27ms. Allocated memory is still 186.6MB. Free memory was 136.8MB in the beginning and 125.7MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 1877.37ms. Allocated memory was 186.6MB in the beginning and 262.1MB in the end (delta: 75.5MB). Free memory was 125.5MB in the beginning and 203.5MB in the end (delta: -78.0MB). There was no memory consumed. 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 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i_3 + n_1 and consists of 4 locations. One deterministic module has affine ranking function n_1 + -1 * i_7 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. 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 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 20 StatesRemovedByMinimization, 1 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 3 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp68 ukn92 mio100 lsp50 div100 bol100 ite100 ukn100 eq216 hnf92 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 34 PlacesBefore, 29 PlacesAfterwards, 26 TransitionsBefore, 21 TransitionsAfterwards, 184 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 231 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 217, independent: 215, independent conditional: 0, independent unconditional: 215, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 82, independent: 80, independent conditional: 0, independent unconditional: 80, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 82, independent: 76, independent conditional: 0, independent unconditional: 76, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 24, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 217, independent: 135, independent conditional: 0, independent unconditional: 135, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 82, unknown conditional: 0, unknown unconditional: 82] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 40, Positive conditional cache size: 0, Positive unconditional cache size: 40, 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 17:13:40,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-10-12 17:13:40,361 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...