/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/buchiAutomizer/concurrent-automaton-semanticLbe.epf -i ../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-with_locks.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-638c691-m [2022-09-29 15:00:15,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 15:00:15,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 15:00:15,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 15:00:15,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 15:00:15,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 15:00:15,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 15:00:15,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 15:00:15,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 15:00:15,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 15:00:15,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 15:00:15,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-09-29 15:00:15,673 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf [2022-09-29 15:00:15,695 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 15:00:15,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 15:00:15,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 15:00:15,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 15:00:15,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 15:00:15,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 15:00:15,697 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 15:00:15,697 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 15:00:15,698 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 15:00:15,698 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 15:00:15,698 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 15:00:15,698 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 15:00:15,699 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 15:00:15,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 15:00:15,699 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 15:00:15,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 15:00:15,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 15:00:15,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 15:00:15,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 15:00:15,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 15:00:15,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 15:00:15,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 15:00:15,700 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 15:00:15,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 15:00:15,700 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 15:00:15,700 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 15:00:15,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 15:00:15,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 15:00:15,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 15:00:15,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 15:00:15,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 15:00:15,701 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 15:00:15,701 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 15:00:15,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 15:00:15,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 15:00:15,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 15:00:15,914 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 15:00:15,915 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 15:00:15,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-with_locks.bpl [2022-09-29 15:00:15,916 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-with_locks.bpl' [2022-09-29 15:00:15,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 15:00:15,954 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 15:00:15,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 15:00:15,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 15:00:15,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 15:00:15,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:15" (1/1) ... [2022-09-29 15:00:15,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:15" (1/1) ... [2022-09-29 15:00:15,990 INFO L137 Inliner]: procedures = 8, calls = 11, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 37 [2022-09-29 15:00:15,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 15:00:15,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 15:00:15,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 15:00:15,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 15:00:15,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:15" (1/1) ... [2022-09-29 15:00:15,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:15" (1/1) ... [2022-09-29 15:00:16,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:15" (1/1) ... [2022-09-29 15:00:16,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:15" (1/1) ... [2022-09-29 15:00:16,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:15" (1/1) ... [2022-09-29 15:00:16,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:15" (1/1) ... [2022-09-29 15:00:16,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:15" (1/1) ... [2022-09-29 15:00:16,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 15:00:16,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 15:00:16,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 15:00:16,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 15:00:16,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:15" (1/1) ... [2022-09-29 15:00:16,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:16,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:16,043 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) [2022-09-29 15:00:16,050 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 [2022-09-29 15:00:16,073 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMax given in one single declaration [2022-09-29 15:00:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure computeMax [2022-09-29 15:00:16,073 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMax [2022-09-29 15:00:16,073 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 15:00:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 15:00:16,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 15:00:16,074 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sample given in one single declaration [2022-09-29 15:00:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure sample [2022-09-29 15:00:16,074 INFO L138 BoogieDeclarations]: Found implementation of procedure sample [2022-09-29 15:00:16,074 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMin given in one single declaration [2022-09-29 15:00:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure computeMin [2022-09-29 15:00:16,074 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMin [2022-09-29 15:00:16,075 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 15:00:16,114 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 15:00:16,115 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 15:00:16,279 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 15:00:16,296 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 15:00:16,311 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-09-29 15:00:16,313 INFO L202 PluginConnector]: Adding new model min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:00:16 BoogieIcfgContainer [2022-09-29 15:00:16,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 15:00:16,326 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 15:00:16,326 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 15:00:16,334 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 15:00:16,335 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:00:16,335 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:15" (1/2) ... [2022-09-29 15:00:16,342 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17d88c08 and model type min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 03:00:16, skipping insertion in model container [2022-09-29 15:00:16,343 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:00:16,343 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:00:16" (2/2) ... [2022-09-29 15:00:16,344 INFO L322 chiAutomizerObserver]: Analyzing ICFG min-max-sample-with_locks.bpl [2022-09-29 15:00:16,424 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 15:00:16,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 55 transitions, 131 flow [2022-09-29 15:00:16,513 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:00:16,513 INFO L123 PetriNetUnfolderBase]: 3/49 cut-off events. [2022-09-29 15:00:16,513 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 15:00:16,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 49 events. 3/49 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 126 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2022-09-29 15:00:16,517 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 55 transitions, 131 flow [2022-09-29 15:00:16,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 49 transitions, 113 flow [2022-09-29 15:00:16,529 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 15:00:16,551 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 49 transitions, 113 flow [2022-09-29 15:00:16,556 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 49 transitions, 113 flow [2022-09-29 15:00:16,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 49 transitions, 113 flow [2022-09-29 15:00:16,571 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:00:16,571 INFO L123 PetriNetUnfolderBase]: 3/49 cut-off events. [2022-09-29 15:00:16,571 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 15:00:16,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 49 events. 3/49 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2022-09-29 15:00:16,572 INFO L116 LiptonReduction]: Number of co-enabled transitions 1372 [2022-09-29 15:00:17,007 INFO L131 LiptonReduction]: Checked pairs total: 2034 [2022-09-29 15:00:17,007 INFO L133 LiptonReduction]: Total number of compositions: 21 [2022-09-29 15:00:17,035 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 15:00:17,035 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 15:00:17,035 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 15:00:17,036 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 15:00:17,036 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 15:00:17,036 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 15:00:17,036 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 15:00:17,036 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-09-29 15:00:17,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-09-29 15:00:17,242 INFO L131 ngComponentsAnalysis]: Automaton has 39 accepting balls. 442 [2022-09-29 15:00:17,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:17,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:17,246 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 15:00:17,247 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-09-29 15:00:17,247 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 15:00:17,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 469 states, but on-demand construction may add more states [2022-09-29 15:00:17,287 INFO L131 ngComponentsAnalysis]: Automaton has 39 accepting balls. 442 [2022-09-29 15:00:17,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:17,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:17,288 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 15:00:17,288 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-09-29 15:00:17,291 INFO L733 eck$LassoCheckResult]: Stem: 62#[ULTIMATE.startENTRY]don't care [168] ULTIMATE.startENTRY-->computeMinENTRY: Formula: (= v_computeMinThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{computeMinThread1of1ForFork0_thidvar0=v_computeMinThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork0_thidvar0] 65#[computeMinENTRY, L74]don't care [153] computeMinENTRY-->L33: Formula: (= v_array_min_4 (select v_A_3 0)) InVars {A=v_A_3} OutVars{A=v_A_3, array_min=v_array_min_4} AuxVars[] AssignedVars[array_min] 67#[L33, L74]don't care [154] L33-->L35-1: Formula: (= v_i1_5 0) InVars {} OutVars{i1=v_i1_5} AuxVars[] AssignedVars[i1] 71#[L35-1, L74]don't care [2022-09-29 15:00:17,292 INFO L735 eck$LassoCheckResult]: Loop: 71#[L35-1, L74]don't care [197] L35-1-->L37: Formula: (and (< v_i1_44 v_N_15) v_min_lock_74 (not v_min_lock_75)) InVars {N=v_N_15, min_lock=v_min_lock_75, i1=v_i1_44} OutVars{N=v_N_15, min_lock=v_min_lock_74, i1=v_i1_44} AuxVars[] AssignedVars[min_lock] 79#[L37, L74]don't care [161] L37-->L38: Formula: (= v_array_min_5 (let ((.cse0 (select v_A_4 v_i1_7))) (ite (< v_array_min_6 .cse0) v_array_min_6 .cse0))) InVars {A=v_A_4, i1=v_i1_7, array_min=v_array_min_6} OutVars{A=v_A_4, i1=v_i1_7, array_min=v_array_min_5} AuxVars[] AssignedVars[array_min] 97#[L38, L74]don't care [182] L38-->L94: Formula: (= v_i1_18 (+ v_i1_19 1)) InVars {i1=v_i1_19} OutVars{i1=v_i1_18} AuxVars[] AssignedVars[i1] 127#[L94, L74]don't care [188] L94-->L35-1: Formula: (not v_min_lock_39) InVars {} OutVars{min_lock=v_min_lock_39} AuxVars[] AssignedVars[min_lock] 71#[L35-1, L74]don't care [2022-09-29 15:00:17,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:17,299 INFO L85 PathProgramCache]: Analyzing trace with hash 196136, now seen corresponding path program 1 times [2022-09-29 15:00:17,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:17,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486797955] [2022-09-29 15:00:17,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:17,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:17,373 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:17,411 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:17,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:17,413 INFO L85 PathProgramCache]: Analyzing trace with hash 6952899, now seen corresponding path program 1 times [2022-09-29 15:00:17,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:17,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734785776] [2022-09-29 15:00:17,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:17,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:17,424 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:17,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:17,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:17,436 INFO L85 PathProgramCache]: Analyzing trace with hash 753117802, now seen corresponding path program 1 times [2022-09-29 15:00:17,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:17,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849919954] [2022-09-29 15:00:17,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:17,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:17,460 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:17,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:17,614 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:00:17,614 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:00:17,614 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:00:17,614 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:00:17,614 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:00:17,614 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:17,614 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:00:17,615 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:00:17,615 INFO L133 ssoRankerPreferences]: Filename of dumped script: min-max-sample-with_locks.bpl_BEv2_Iteration1_Lasso [2022-09-29 15:00:17,615 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:00:17,615 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:00:17,633 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:00:17,642 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:00:17,698 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:00:17,813 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:00:17,816 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:00:17,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:17,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:17,835 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) [2022-09-29 15:00:17,842 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 [2022-09-29 15:00:17,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:17,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:17,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:17,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:17,869 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:17,869 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:17,884 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 [2022-09-29 15:00:17,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:17,953 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 [2022-09-29 15:00:17,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:17,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:17,968 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) [2022-09-29 15:00:17,977 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 [2022-09-29 15:00:17,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:17,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:17,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:17,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:18,003 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:18,003 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:18,011 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 [2022-09-29 15:00:18,024 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:00:18,048 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2022-09-29 15:00:18,048 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 15:00:18,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:18,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:18,055 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) [2022-09-29 15:00:18,057 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:00:18,058 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 [2022-09-29 15:00:18,065 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:00:18,065 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:00:18,065 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i1, N) = -1*i1 + 1*N Supporting invariants [] [2022-09-29 15:00:18,095 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 [2022-09-29 15:00:18,097 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:00:18,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:00:18,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:00:18,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:00:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:00:18,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:00:18,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:00:18,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 15:00:18,246 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-09-29 15:00:18,248 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 469 states, but on-demand construction may add more states Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 15:00:18,397 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 469 states, but on-demand construction may add more states. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1162 states and 3873 transitions. Complement of second has 6 states. [2022-09-29 15:00:18,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-09-29 15:00:18,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 15:00:18,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2022-09-29 15:00:18,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 79 transitions. Stem has 3 letters. Loop has 4 letters. [2022-09-29 15:00:18,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:18,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 79 transitions. Stem has 7 letters. Loop has 4 letters. [2022-09-29 15:00:18,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:18,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 79 transitions. Stem has 3 letters. Loop has 8 letters. [2022-09-29 15:00:18,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:18,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1162 states and 3873 transitions. [2022-09-29 15:00:18,425 INFO L131 ngComponentsAnalysis]: Automaton has 50 accepting balls. 414 [2022-09-29 15:00:18,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1162 states to 1014 states and 3390 transitions. [2022-09-29 15:00:18,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 512 [2022-09-29 15:00:18,451 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 735 [2022-09-29 15:00:18,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1014 states and 3390 transitions. [2022-09-29 15:00:18,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-09-29 15:00:18,452 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1014 states and 3390 transitions. [2022-09-29 15:00:18,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states and 3390 transitions. [2022-09-29 15:00:18,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-09-29 15:00:18,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 793. [2022-09-29 15:00:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 793 states have (on average 3.382093316519546) internal successors, (2682), 792 states have internal predecessors, (2682), 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) [2022-09-29 15:00:18,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 2682 transitions. [2022-09-29 15:00:18,602 INFO L240 hiAutomatonCegarLoop]: Abstraction has 793 states and 2682 transitions. [2022-09-29 15:00:18,602 INFO L428 stractBuchiCegarLoop]: Abstraction has 793 states and 2682 transitions. [2022-09-29 15:00:18,602 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 15:00:18,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 793 states and 2682 transitions. [2022-09-29 15:00:18,608 INFO L131 ngComponentsAnalysis]: Automaton has 50 accepting balls. 414 [2022-09-29 15:00:18,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:18,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:18,609 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 15:00:18,609 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-09-29 15:00:18,610 INFO L733 eck$LassoCheckResult]: Stem: 3783#[ULTIMATE.startENTRY]don't care [168] ULTIMATE.startENTRY-->computeMinENTRY: Formula: (= v_computeMinThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{computeMinThread1of1ForFork0_thidvar0=v_computeMinThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork0_thidvar0] 2795#[computeMinENTRY, L74]don't care [171] L74-->computeMaxENTRY: Formula: (and (= v_computeMaxThread1of1ForFork1_thidvar0_2 2) (= v_computeMaxThread1of1ForFork1_thidvar1_2 2)) InVars {} OutVars{computeMaxThread1of1ForFork1_thidvar0=v_computeMaxThread1of1ForFork1_thidvar0_2, computeMaxThread1of1ForFork1_thidvar1=v_computeMaxThread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[computeMaxThread1of1ForFork1_thidvar0, computeMaxThread1of1ForFork1_thidvar1] 2351#[computeMinENTRY, L75, computeMaxENTRY]don't care [174] L75-->L60: Formula: (and (= v_sampleThread1of1ForFork2_thidvar0_2 3) (= v_sampleThread1of1ForFork2_thidvar2_2 3) (= v_sampleThread1of1ForFork2_thidvar1_2 3)) InVars {} OutVars{sampleThread1of1ForFork2_thidvar0=v_sampleThread1of1ForFork2_thidvar0_2, sampleThread1of1ForFork2_thidvar2=v_sampleThread1of1ForFork2_thidvar2_2, sampleThread1of1ForFork2_thidvar1=v_sampleThread1of1ForFork2_thidvar1_2} AuxVars[] AssignedVars[sampleThread1of1ForFork2_thidvar0, sampleThread1of1ForFork2_thidvar2, sampleThread1of1ForFork2_thidvar1] 2357#[computeMaxENTRY, computeMinENTRY, L76, L60]don't care [2022-09-29 15:00:18,611 INFO L735 eck$LassoCheckResult]: Loop: 2357#[computeMaxENTRY, computeMinENTRY, L76, L60]don't care [196] L60-->L62: Formula: (and v_min_lock_70 (not v_min_lock_71)) InVars {min_lock=v_min_lock_71} OutVars{min_lock=v_min_lock_70} AuxVars[] AssignedVars[min_lock] 2635#[computeMinENTRY, computeMaxENTRY, L76, L62]don't care [180] L62-->L94: Formula: (= v_min_samples_7 (store v_min_samples_8 (+ (- 1) v_i1_12) v_array_min_10)) InVars {min_samples=v_min_samples_8, array_min=v_array_min_10, i1=v_i1_12} OutVars{min_samples=v_min_samples_7, array_min=v_array_min_10, i1=v_i1_12} AuxVars[] AssignedVars[min_samples] 2637#[computeMaxENTRY, computeMinENTRY, L76, L94]don't care [191] L94-->L65: Formula: (not v_min_lock_46) InVars {} OutVars{min_lock=v_min_lock_46} AuxVars[] AssignedVars[min_lock] 2841#[computeMinENTRY, computeMaxENTRY, L76, L65]don't care [194] L65-->L66: Formula: (and (not v_max_lock_60) v_max_lock_59) InVars {max_lock=v_max_lock_60} OutVars{max_lock=v_max_lock_59} AuxVars[] AssignedVars[max_lock] 2985#[computeMaxENTRY, computeMinENTRY, L76, L66]don't care [183] L66-->L108: Formula: (= (store v_max_samples_8 (+ (- 1) v_i2_14) v_array_max_11) v_max_samples_7) InVars {array_max=v_array_max_11, i2=v_i2_14, max_samples=v_max_samples_8} OutVars{array_max=v_array_max_11, i2=v_i2_14, max_samples=v_max_samples_7} AuxVars[] AssignedVars[max_samples] 3777#[computeMinENTRY, computeMaxENTRY, L76, L108]don't care [193] L108-->L60: Formula: (not v_max_lock_57) InVars {} OutVars{max_lock=v_max_lock_57} AuxVars[] AssignedVars[max_lock] 2357#[computeMaxENTRY, computeMinENTRY, L76, L60]don't care [2022-09-29 15:00:18,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:18,612 INFO L85 PathProgramCache]: Analyzing trace with hash 196714, now seen corresponding path program 1 times [2022-09-29 15:00:18,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:18,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331316587] [2022-09-29 15:00:18,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:18,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:18,622 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:18,629 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:18,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:18,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1919001154, now seen corresponding path program 1 times [2022-09-29 15:00:18,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:18,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882434446] [2022-09-29 15:00:18,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:18,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:18,635 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:18,638 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:18,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:18,638 INFO L85 PathProgramCache]: Analyzing trace with hash -238048409, now seen corresponding path program 1 times [2022-09-29 15:00:18,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:18,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617819824] [2022-09-29 15:00:18,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:18,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:18,645 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:18,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:18,722 INFO L202 PluginConnector]: Adding new model min-max-sample-with_locks.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 03:00:18 BoogieIcfgContainer [2022-09-29 15:00:18,723 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 15:00:18,724 INFO L158 Benchmark]: Toolchain (without parser) took 2769.31ms. Allocated memory is still 159.4MB. Free memory was 120.8MB in the beginning and 117.2MB in the end (delta: 3.6MB). Peak memory consumption was 3.8MB. Max. memory is 8.0GB. [2022-09-29 15:00:18,724 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 159.4MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:00:18,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.71ms. Allocated memory is still 159.4MB. Free memory was 120.8MB in the beginning and 118.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-29 15:00:18,728 INFO L158 Benchmark]: Boogie Preprocessor took 19.60ms. Allocated memory is still 159.4MB. Free memory was 118.8MB in the beginning and 117.9MB in the end (delta: 918.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 15:00:18,729 INFO L158 Benchmark]: RCFGBuilder took 313.18ms. Allocated memory is still 159.4MB. Free memory was 117.9MB in the beginning and 108.1MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-09-29 15:00:18,730 INFO L158 Benchmark]: BuchiAutomizer took 2396.35ms. Allocated memory is still 159.4MB. Free memory was 107.9MB in the beginning and 117.2MB in the end (delta: -9.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:00:18,732 INFO L339 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 0.13ms. Allocated memory is still 159.4MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.71ms. Allocated memory is still 159.4MB. Free memory was 120.8MB in the beginning and 118.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.60ms. Allocated memory is still 159.4MB. Free memory was 118.8MB in the beginning and 117.9MB in the end (delta: 918.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 313.18ms. Allocated memory is still 159.4MB. Free memory was 117.9MB in the beginning and 108.1MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2396.35ms. Allocated memory is still 159.4MB. Free memory was 107.9MB in the beginning and 117.2MB in the end (delta: -9.3MB). 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function N + -1 * i1 and consists of 4 locations. The remainder module has 793 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 221 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 15 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital47 mio100 ax100 hnf100 lsp102 ukn70 mio100 lsp67 div100 bol100 ite100 ukn100 eq169 hnf94 smp100 dnf129 smp72 tf100 neg97 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 82ms 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: 0.5s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 60]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {array_max=5, array_min=4, i1=0, i2=22475, max_lock=false, min_lock=false} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 60]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L74] FORK 0 fork 1 computeMin(); [L75] FORK 0 fork 2, 2 computeMax(); [L76] FORK 0 fork 3, 3, 3 sample(); Loop: [L61] CALL call lock_min(); [L87] assume !min_lock; [L88] min_lock := true; [L61] RET call lock_min(); [L62] min_samples[i1 - 1] := array_min; [L63] CALL call release_min(); [L94] min_lock := false; [L63] RET call release_min(); [L65] CALL call lock_max(); [L101] assume !max_lock; [L102] max_lock := true; [L65] RET call lock_max(); [L66] max_samples[i2 - 1] := array_max; [L67] CALL call release_max(); [L108] max_lock := false; [L67] RET call release_max(); End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5s, 56 PlacesBefore, 35 PlacesAfterwards, 49 TransitionsBefore, 28 TransitionsAfterwards, 1372 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 21 TotalNumberOfCompositions, 2034 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1350, positive: 1286, positive conditional: 0, positive unconditional: 1286, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 938, positive: 898, positive conditional: 0, positive unconditional: 898, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 938, positive: 890, positive conditional: 0, positive unconditional: 890, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 112, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1350, positive: 388, positive conditional: 0, positive unconditional: 388, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 938, unknown conditional: 0, unknown unconditional: 938] , Statistics on independence cache: Total cache size (in pairs): 243, Positive cache size: 224, Positive conditional cache size: 0, Positive unconditional cache size: 224, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 RESULT: Ultimate proved your program to be incorrect! [2022-09-29 15:00:18,781 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...