/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:24:33,188 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:24:33,267 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 17:24:33,306 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:24:33,306 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:24:33,307 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:24:33,308 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:24:33,308 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:24:33,309 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:24:33,312 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:24:33,312 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:24:33,313 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:24:33,313 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:24:33,314 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:24:33,315 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:24:33,315 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:24:33,315 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:24:33,315 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:24:33,316 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:24:33,316 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:24:33,316 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:24:33,317 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:24:33,317 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:24:33,318 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:24:33,318 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:24:33,318 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:24:33,318 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:24:33,318 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:24:33,319 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:24:33,319 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:24:33,320 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:24:33,320 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:24:33,320 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:24:33,321 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:24:33,322 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:24:33,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:24:33,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:24:33,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:24:33,610 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:24:33,611 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:24:33,613 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-1.wvr.bpl [2023-10-12 17:24:33,613 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-1.wvr.bpl' [2023-10-12 17:24:33,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:24:33,644 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:24:33,646 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:24:33,646 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:24:33,646 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:24:33,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:33" (1/1) ... [2023-10-12 17:24:33,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:33" (1/1) ... [2023-10-12 17:24:33,670 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:24:33,671 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:24:33,672 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:24:33,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:24:33,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:24:33,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:33" (1/1) ... [2023-10-12 17:24:33,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:33" (1/1) ... [2023-10-12 17:24:33,683 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:33" (1/1) ... [2023-10-12 17:24:33,683 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:33" (1/1) ... [2023-10-12 17:24:33,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:33" (1/1) ... [2023-10-12 17:24:33,691 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:33" (1/1) ... [2023-10-12 17:24:33,692 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:33" (1/1) ... [2023-10-12 17:24:33,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:33" (1/1) ... [2023-10-12 17:24:33,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:24:33,698 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:24:33,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:24:33,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:24:33,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:33" (1/1) ... [2023-10-12 17:24:33,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:33,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:33,730 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 17:24:33,753 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 17:24:33,765 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:24:33,766 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:24:33,766 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:24:33,766 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:24:33,766 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:24:33,766 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:24:33,766 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:24:33,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:24:33,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:24:33,767 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:24:33,768 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:24:33,768 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:24:33,769 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 17:24:33,810 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:24:33,812 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:24:33,922 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:24:33,947 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:24:33,947 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:24:33,949 INFO L201 PluginConnector]: Adding new model min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:24:33 BoogieIcfgContainer [2023-10-12 17:24:33,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:24:33,950 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:24:33,950 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:24:33,966 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:24:33,967 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:24:33,967 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:33" (1/2) ... [2023-10-12 17:24:33,969 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2cc80b25 and model type min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:24:33, skipping insertion in model container [2023-10-12 17:24:33,969 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:24:33,969 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:24:33" (2/2) ... [2023-10-12 17:24:33,970 INFO L332 chiAutomizerObserver]: Analyzing ICFG min-max-1.wvr.bpl [2023-10-12 17:24:34,025 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:24:34,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 33 transitions, 90 flow [2023-10-12 17:24:34,068 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2023-10-12 17:24:34,068 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:24:34,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 27 events. 2/27 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-10-12 17:24:34,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 33 transitions, 90 flow [2023-10-12 17:24:34,077 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 27 transitions, 72 flow [2023-10-12 17:24:34,080 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:24:34,092 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 27 transitions, 72 flow [2023-10-12 17:24:34,094 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 27 transitions, 72 flow [2023-10-12 17:24:34,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 27 transitions, 72 flow [2023-10-12 17:24:34,102 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2023-10-12 17:24:34,102 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:24:34,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 27 events. 2/27 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-10-12 17:24:34,104 INFO L119 LiptonReduction]: Number of co-enabled transitions 218 [2023-10-12 17:24:34,418 INFO L134 LiptonReduction]: Checked pairs total: 267 [2023-10-12 17:24:34,418 INFO L136 LiptonReduction]: Total number of compositions: 10 [2023-10-12 17:24:34,430 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:24:34,431 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:24:34,431 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:24:34,431 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:24:34,431 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:24:34,431 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:24:34,431 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:24:34,431 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:24:34,432 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 places, 18 transitions, 54 flow [2023-10-12 17:24:34,436 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:24:34,436 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-10-12 17:24:34,437 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:24:34,437 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:24:34,440 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:24:34,440 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 places, 18 transitions, 54 flow [2023-10-12 17:24:34,442 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:24:34,442 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-10-12 17:24:34,442 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:24:34,442 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:24:34,447 INFO L748 eck$LassoCheckResult]: Stem: 42#[$Ultimate##0]true [57] $Ultimate##0-->L51: Formula: (let ((.cse0 (not v_v_assert_1))) (and (= v_i_6 0) (= v_j_6 v_i_6) (or (and v_b2_2 v_v_assert_1) (and .cse0 (not v_b2_2))) .cse0 (or (and (not v_b1_2) .cse0) (and v_b1_2 v_v_assert_1)) (= (select v_A_5 0) v_min_4) (= v_max_4 v_min_4))) InVars {A=v_A_5, b2=v_b2_2, b1=v_b1_2, j=v_j_6, i=v_i_6, v_assert=v_v_assert_1, min=v_min_4, max=v_max_4} OutVars{A=v_A_5, b2=v_b2_2, b1=v_b1_2, j=v_j_6, i=v_i_6, v_assert=v_v_assert_1, min=v_min_4, max=v_max_4} AuxVars[] AssignedVars[] 44#[L51]true [80] L51-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 46#[$Ultimate##0, L51-1]true [62] $Ultimate##0-->L23: Formula: (= (select v_A_1 0) v_min_1) InVars {A=v_A_1} OutVars{A=v_A_1, min=v_min_1} AuxVars[] AssignedVars[min] 48#[L23, L51-1]true [63] L23-->L24-1: Formula: v_b1_1 InVars {} OutVars{b1=v_b1_1} AuxVars[] AssignedVars[b1] 50#[L24-1, L51-1]true [2023-10-12 17:24:34,447 INFO L750 eck$LassoCheckResult]: Loop: 50#[L24-1, L51-1]true [98] L24-1-->L24-1: Formula: (and (< 0 v_i_16) (= v_i_15 (+ v_i_16 1)) (= (let ((.cse0 (select v_A_26 v_i_16))) (ite (< v_min_41 .cse0) v_min_41 .cse0)) v_min_40) (< v_i_16 v_N_15)) InVars {A=v_A_26, N=v_N_15, i=v_i_16, min=v_min_41} OutVars{A=v_A_26, N=v_N_15, i=v_i_15, min=v_min_40} AuxVars[] AssignedVars[i, min] 50#[L24-1, L51-1]true [2023-10-12 17:24:34,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:34,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2700473, now seen corresponding path program 1 times [2023-10-12 17:24:34,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:34,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623241939] [2023-10-12 17:24:34,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:34,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:34,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:34,546 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:34,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:34,549 INFO L85 PathProgramCache]: Analyzing trace with hash 129, now seen corresponding path program 1 times [2023-10-12 17:24:34,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:34,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695129006] [2023-10-12 17:24:34,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:34,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:34,562 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:34,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:34,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:34,570 INFO L85 PathProgramCache]: Analyzing trace with hash 83714761, now seen corresponding path program 1 times [2023-10-12 17:24:34,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:34,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851911067] [2023-10-12 17:24:34,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:34,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:24:34,633 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 17:24:34,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:24:34,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851911067] [2023-10-12 17:24:34,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851911067] provided 1 perfect and 0 imperfect interpolant sequences [2023-10-12 17:24:34,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-10-12 17:24:34,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-10-12 17:24:34,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362844389] [2023-10-12 17:24:34,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-10-12 17:24:34,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:24:34,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-10-12 17:24:34,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-10-12 17:24:34,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 54 flow. Second operand has 3 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 17:24:34,748 INFO L124 encePairwiseOnDemand]: Subtrahend is not yet constructed. Will not use universal subtrahend loopers optimization. [2023-10-12 17:24:34,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-10-12 17:24:34,808 INFO L124 PetriNetUnfolderBase]: 85/150 cut-off events. [2023-10-12 17:24:34,808 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2023-10-12 17:24:34,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 150 events. 85/150 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 384 event pairs, 71 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 286. Up to 150 conditions per place. [2023-10-12 17:24:34,814 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-10-12 17:24:34,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 16 transitions, 82 flow [2023-10-12 17:24:34,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 16 transitions, 82 flow [2023-10-12 17:24:34,842 INFO L124 PetriNetUnfolderBase]: 85/150 cut-off events. [2023-10-12 17:24:34,842 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2023-10-12 17:24:34,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 150 events. 85/150 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 385 event pairs, 71 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 286. Up to 150 conditions per place. [2023-10-12 17:24:34,843 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 27 places, 16 transitions, 82 flow [2023-10-12 17:24:34,845 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 27 places, 16 transitions, 82 flow [2023-10-12 17:24:34,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-10-12 17:24:34,850 INFO L430 stractBuchiCegarLoop]: Abstraction has has 27 places, 16 transitions, 82 flow [2023-10-12 17:24:34,851 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:24:34,851 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 places, 16 transitions, 82 flow [2023-10-12 17:24:34,858 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:24:34,859 INFO L124 PetriNetUnfolderBase]: 13/28 cut-off events. [2023-10-12 17:24:34,859 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-10-12 17:24:34,859 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:24:34,860 INFO L748 eck$LassoCheckResult]: Stem: 42#[$Ultimate##0]true [57] $Ultimate##0-->L51: Formula: (let ((.cse0 (not v_v_assert_1))) (and (= v_i_6 0) (= v_j_6 v_i_6) (or (and v_b2_2 v_v_assert_1) (and .cse0 (not v_b2_2))) .cse0 (or (and (not v_b1_2) .cse0) (and v_b1_2 v_v_assert_1)) (= (select v_A_5 0) v_min_4) (= v_max_4 v_min_4))) InVars {A=v_A_5, b2=v_b2_2, b1=v_b1_2, j=v_j_6, i=v_i_6, v_assert=v_v_assert_1, min=v_min_4, max=v_max_4} OutVars{A=v_A_5, b2=v_b2_2, b1=v_b1_2, j=v_j_6, i=v_i_6, v_assert=v_v_assert_1, min=v_min_4, max=v_max_4} AuxVars[] AssignedVars[] 44#[L51]true [80] L51-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 46#[$Ultimate##0, L51-1]true [83] L51-1-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 72#[$Ultimate##0, $Ultimate##0, L52]true [69] $Ultimate##0-->L34: Formula: (= (select v_A_4 0) v_max_3) InVars {A=v_A_4} OutVars{A=v_A_4, max=v_max_3} AuxVars[] AssignedVars[max] 74#[$Ultimate##0, L52, L34]true [70] L34-->L35-1: Formula: v_b2_1 InVars {} OutVars{b2=v_b2_1} AuxVars[] AssignedVars[b2] 76#[$Ultimate##0, L52, L35-1]true [2023-10-12 17:24:34,860 INFO L750 eck$LassoCheckResult]: Loop: 76#[$Ultimate##0, L52, L35-1]true [97] L35-1-->L35-1: Formula: (and (= v_j_15 (+ v_j_16 1)) (< 0 v_j_16) (= v_max_31 (let ((.cse0 (select v_A_20 v_j_16))) (ite (< .cse0 v_max_32) v_max_32 .cse0))) (< v_j_16 v_N_11)) InVars {A=v_A_20, N=v_N_11, j=v_j_16, max=v_max_32} OutVars{A=v_A_20, N=v_N_11, j=v_j_15, max=v_max_31} AuxVars[] AssignedVars[j, max] 76#[$Ultimate##0, L52, L35-1]true [2023-10-12 17:24:34,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:34,860 INFO L85 PathProgramCache]: Analyzing trace with hash 83735100, now seen corresponding path program 1 times [2023-10-12 17:24:34,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:34,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793697876] [2023-10-12 17:24:34,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:34,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:34,866 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:34,876 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:34,877 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:34,877 INFO L85 PathProgramCache]: Analyzing trace with hash 128, now seen corresponding path program 1 times [2023-10-12 17:24:34,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:34,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911813454] [2023-10-12 17:24:34,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:34,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:34,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:34,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:34,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:34,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1699179099, now seen corresponding path program 1 times [2023-10-12 17:24:34,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:34,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992169049] [2023-10-12 17:24:34,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:34,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:24:34,932 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 17:24:34,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:24:34,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992169049] [2023-10-12 17:24:34,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992169049] provided 1 perfect and 0 imperfect interpolant sequences [2023-10-12 17:24:34,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-10-12 17:24:34,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-10-12 17:24:34,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435965899] [2023-10-12 17:24:34,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-10-12 17:24:34,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:24:34,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-10-12 17:24:34,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-10-12 17:24:34,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 16 transitions, 82 flow. Second operand has 3 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 17:24:34,975 INFO L124 encePairwiseOnDemand]: Subtrahend is not yet constructed. Will not use universal subtrahend loopers optimization. [2023-10-12 17:24:34,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-10-12 17:24:35,037 INFO L124 PetriNetUnfolderBase]: 71/136 cut-off events. [2023-10-12 17:24:35,038 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2023-10-12 17:24:35,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 136 events. 71/136 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 371 event pairs, 71 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 373. Up to 136 conditions per place. [2023-10-12 17:24:35,043 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 14 selfloop transitions, 1 changer transitions 0/15 dead transitions. [2023-10-12 17:24:35,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 15 transitions, 108 flow [2023-10-12 17:24:35,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 15 transitions, 108 flow [2023-10-12 17:24:35,057 INFO L124 PetriNetUnfolderBase]: 71/136 cut-off events. [2023-10-12 17:24:35,057 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2023-10-12 17:24:35,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 136 events. 71/136 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 369 event pairs, 71 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 373. Up to 136 conditions per place. [2023-10-12 17:24:35,058 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 29 places, 15 transitions, 108 flow [2023-10-12 17:24:35,060 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 29 places, 15 transitions, 108 flow [2023-10-12 17:24:35,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-10-12 17:24:35,062 INFO L430 stractBuchiCegarLoop]: Abstraction has has 29 places, 15 transitions, 108 flow [2023-10-12 17:24:35,063 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:24:35,065 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 29 places, 15 transitions, 108 flow [2023-10-12 17:24:35,082 INFO L124 PetriNetUnfolderBase]: 71/136 cut-off events. [2023-10-12 17:24:35,085 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2023-10-12 17:24:35,086 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:24:35,092 INFO L201 PluginConnector]: Adding new model min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:24:35 BoogieIcfgContainer [2023-10-12 17:24:35,092 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:24:35,097 INFO L158 Benchmark]: Toolchain (without parser) took 1448.33ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 131.6MB in the beginning and 175.2MB in the end (delta: -43.6MB). Peak memory consumption was 49.7MB. Max. memory is 8.0GB. [2023-10-12 17:24:35,097 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.24ms. Allocated memory is still 176.2MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:24:35,098 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.47ms. Allocated memory is still 176.2MB. Free memory was 131.6MB in the beginning and 130.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:24:35,099 INFO L158 Benchmark]: Boogie Preprocessor took 25.16ms. Allocated memory is still 176.2MB. Free memory was 130.0MB in the beginning and 128.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:24:35,100 INFO L158 Benchmark]: RCFGBuilder took 250.96ms. Allocated memory is still 176.2MB. Free memory was 128.9MB in the beginning and 152.2MB in the end (delta: -23.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-10-12 17:24:35,100 INFO L158 Benchmark]: BuchiAutomizer took 1142.40ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 152.0MB in the beginning and 175.2MB in the end (delta: -23.1MB). Peak memory consumption was 69.6MB. Max. memory is 8.0GB. [2023-10-12 17:24:35,105 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 0.24ms. Allocated memory is still 176.2MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.47ms. Allocated memory is still 176.2MB. Free memory was 131.6MB in the beginning and 130.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 25.16ms. Allocated memory is still 176.2MB. Free memory was 130.0MB in the beginning and 128.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 250.96ms. Allocated memory is still 176.2MB. Free memory was 128.9MB in the beginning and 152.2MB in the end (delta: -23.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * BuchiAutomizer took 1142.40ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 152.0MB in the beginning and 175.2MB in the end (delta: -23.1MB). Peak memory consumption was 69.6MB. 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 (2 trivial, 0 deterministic, 0 nondeterministic). 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.3s - 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, 35 PlacesBefore, 26 PlacesAfterwards, 27 TransitionsBefore, 18 TransitionsAfterwards, 218 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 267 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 166, independent: 149, independent conditional: 0, independent unconditional: 149, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 132, independent: 119, independent conditional: 0, independent unconditional: 119, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 132, independent: 119, independent conditional: 0, independent unconditional: 119, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 166, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 132, unknown conditional: 0, unknown unconditional: 132] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 32, Positive conditional cache size: 0, Positive unconditional cache size: 32, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, 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 17:24:35,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...