/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/equal-array-sums-locked.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-638c691-m [2022-09-29 14:59:51,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 14:59:51,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 14:59:51,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 14:59:51,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 14:59:51,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 14:59:51,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 14:59:51,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 14:59:51,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 14:59:51,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 14:59:51,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 14:59:51,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 14:59:51,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 14:59:51,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 14:59:51,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 14:59:51,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 14:59:51,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 14:59:51,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 14:59:51,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 14:59:51,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 14:59:51,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 14:59:51,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 14:59:51,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 14:59:51,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 14:59:51,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 14:59:51,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 14:59:51,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 14:59:51,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 14:59:51,832 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 14:59:51,858 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 14:59:51,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 14:59:51,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 14:59:51,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 14:59:51,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 14:59:51,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 14:59:51,860 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 14:59:51,860 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 14:59:51,860 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 14:59:51,860 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 14:59:51,860 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 14:59:51,860 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 14:59:51,860 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 14:59:51,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 14:59:51,860 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 14:59:51,860 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 14:59:51,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 14:59:51,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 14:59:51,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 14:59:51,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 14:59:51,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 14:59:51,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 14:59:51,861 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 14:59:51,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 14:59:51,861 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 14:59:51,861 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 14:59:51,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 14:59:51,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 14:59:51,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 14:59:51,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 14:59:51,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 14:59:51,862 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 14:59:51,862 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 14:59:52,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 14:59:52,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 14:59:52,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 14:59:52,077 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 14:59:52,081 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 14:59:52,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/equal-array-sums-locked.bpl [2022-09-29 14:59:52,082 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/equal-array-sums-locked.bpl' [2022-09-29 14:59:52,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 14:59:52,099 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 14:59:52,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 14:59:52,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 14:59:52,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 14:59:52,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:59:52" (1/1) ... [2022-09-29 14:59:52,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:59:52" (1/1) ... [2022-09-29 14:59:52,126 INFO L137 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 20 [2022-09-29 14:59:52,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 14:59:52,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 14:59:52,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 14:59:52,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 14:59:52,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:59:52" (1/1) ... [2022-09-29 14:59:52,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:59:52" (1/1) ... [2022-09-29 14:59:52,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:59:52" (1/1) ... [2022-09-29 14:59:52,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:59:52" (1/1) ... [2022-09-29 14:59:52,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:59:52" (1/1) ... [2022-09-29 14:59:52,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:59:52" (1/1) ... [2022-09-29 14:59:52,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:59:52" (1/1) ... [2022-09-29 14:59:52,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 14:59:52,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 14:59:52,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 14:59:52,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 14:59:52,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:59:52" (1/1) ... [2022-09-29 14:59:52,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:59:52,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:59:52,176 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 14:59:52,186 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 14:59:52,217 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-09-29 14:59:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-29 14:59:52,218 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-29 14:59:52,218 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-09-29 14:59:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-29 14:59:52,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-29 14:59:52,219 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 14:59:52,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 14:59:52,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 14:59:52,220 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 14:59:52,263 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 14:59:52,264 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 14:59:52,327 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 14:59:52,334 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 14:59:52,334 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 14:59:52,336 INFO L202 PluginConnector]: Adding new model equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:59:52 BoogieIcfgContainer [2022-09-29 14:59:52,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 14:59:52,337 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 14:59:52,337 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 14:59:52,347 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 14:59:52,347 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:59:52,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:59:52" (1/2) ... [2022-09-29 14:59:52,349 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31b821e6 and model type equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 02:59:52, skipping insertion in model container [2022-09-29 14:59:52,349 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:59:52,350 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:59:52" (2/2) ... [2022-09-29 14:59:52,352 INFO L322 chiAutomizerObserver]: Analyzing ICFG equal-array-sums-locked.bpl [2022-09-29 14:59:52,404 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 14:59:52,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 90 flow [2022-09-29 14:59:52,475 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:59:52,476 INFO L123 PetriNetUnfolderBase]: 2/33 cut-off events. [2022-09-29 14:59:52,476 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 14:59:52,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 33 events. 2/33 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2022-09-29 14:59:52,478 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 37 transitions, 90 flow [2022-09-29 14:59:52,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 33 transitions, 78 flow [2022-09-29 14:59:52,497 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 14:59:52,521 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 33 transitions, 78 flow [2022-09-29 14:59:52,523 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 33 transitions, 78 flow [2022-09-29 14:59:52,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 33 transitions, 78 flow [2022-09-29 14:59:52,530 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:59:52,530 INFO L123 PetriNetUnfolderBase]: 2/33 cut-off events. [2022-09-29 14:59:52,530 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 14:59:52,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 33 events. 2/33 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2022-09-29 14:59:52,546 INFO L116 LiptonReduction]: Number of co-enabled transitions 336 [2022-09-29 14:59:52,839 INFO L131 LiptonReduction]: Checked pairs total: 296 [2022-09-29 14:59:52,839 INFO L133 LiptonReduction]: Total number of compositions: 18 [2022-09-29 14:59:52,856 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 14:59:52,856 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 14:59:52,856 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 14:59:52,856 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 14:59:52,856 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 14:59:52,856 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 14:59:52,856 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 14:59:52,856 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-09-29 14:59:52,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-09-29 14:59:52,881 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 16 [2022-09-29 14:59:52,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:59:52,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:59:52,884 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 14:59:52,884 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-09-29 14:59:52,884 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 14:59:52,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 28 states, but on-demand construction may add more states [2022-09-29 14:59:52,886 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 16 [2022-09-29 14:59:52,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:59:52,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:59:52,886 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 14:59:52,887 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-09-29 14:59:52,890 INFO L733 eck$LassoCheckResult]: Stem: 43#[ULTIMATE.startENTRY]don't care [117] ULTIMATE.startENTRY-->L26: Formula: (and (= v_x_10 0) (= v_y_6 0)) InVars {} OutVars{y=v_y_6, x=v_x_10} AuxVars[] AssignedVars[y, x] 46#[L26]don't care [108] L26-->thread1ENTRY: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_i#1=|v_thread1Thread1of1ForFork0_i#1_14|, thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i#1, thread1Thread1of1ForFork0_thidvar0] 48#[L26-1, thread1ENTRY]don't care [82] thread1ENTRY-->L40-1: Formula: (= |v_thread1Thread1of1ForFork0_i#1_1| 0) InVars {} OutVars{thread1Thread1of1ForFork0_i#1=|v_thread1Thread1of1ForFork0_i#1_1|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i#1] 50#[L26-1, L40-1]don't care [2022-09-29 14:59:52,892 INFO L735 eck$LassoCheckResult]: Loop: 50#[L26-1, L40-1]don't care [128] L40-1-->L42: Formula: (and v_m_56 (< |v_thread1Thread1of1ForFork0_i#1_27| v_n_13) (not v_m_57)) InVars {thread1Thread1of1ForFork0_i#1=|v_thread1Thread1of1ForFork0_i#1_27|, n=v_n_13, m=v_m_57} OutVars{thread1Thread1of1ForFork0_i#1=|v_thread1Thread1of1ForFork0_i#1_27|, n=v_n_13, m=v_m_56} AuxVars[] AssignedVars[m] 54#[L26-1, L42]don't care [130] L42-->L40-1: Formula: (and (= |v_thread1Thread1of1ForFork0_i#1_31| (+ |v_thread1Thread1of1ForFork0_i#1_32| 1)) (not v_m_69) (= (+ v_x_23 (select v_A_13 |v_thread1Thread1of1ForFork0_i#1_32|)) v_x_22)) InVars {A=v_A_13, thread1Thread1of1ForFork0_i#1=|v_thread1Thread1of1ForFork0_i#1_32|, x=v_x_23} OutVars{A=v_A_13, thread1Thread1of1ForFork0_i#1=|v_thread1Thread1of1ForFork0_i#1_31|, m=v_m_69, x=v_x_22} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i#1, m, x] 50#[L26-1, L40-1]don't care [2022-09-29 14:59:52,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:59:52,895 INFO L85 PathProgramCache]: Analyzing trace with hash 145658, now seen corresponding path program 1 times [2022-09-29 14:59:52,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:59:52,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3737474] [2022-09-29 14:59:52,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:59:52,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:59:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:59:52,944 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:59:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:59:52,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:59:52,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:59:52,957 INFO L85 PathProgramCache]: Analyzing trace with hash 5059, now seen corresponding path program 1 times [2022-09-29 14:59:52,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:59:52,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52936294] [2022-09-29 14:59:52,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:59:52,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:59:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:59:52,965 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:59:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:59:52,969 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:59:52,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:59:52,970 INFO L85 PathProgramCache]: Analyzing trace with hash 139981436, now seen corresponding path program 1 times [2022-09-29 14:59:52,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:59:52,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146686590] [2022-09-29 14:59:52,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:59:52,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:59:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:59:52,976 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:59:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:59:52,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:59:53,085 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:59:53,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:59:53,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:59:53,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:59:53,085 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:59:53,086 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:59:53,086 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:59:53,086 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:59:53,086 INFO L133 ssoRankerPreferences]: Filename of dumped script: equal-array-sums-locked.bpl_BEv2_Iteration1_Lasso [2022-09-29 14:59:53,086 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:59:53,086 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:59:53,095 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 14:59:53,114 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 14:59:53,116 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 14:59:53,120 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 14:59:53,172 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:59:53,175 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:59:53,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:59:53,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:59:53,184 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 14:59:53,185 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 14:59:53,189 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 14:59:53,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:59:53,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:59:53,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:59:53,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:59:53,199 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:59:53,199 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:59:53,216 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:59:53,238 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-09-29 14:59:53,238 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 14:59:53,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:59:53,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:59:53,241 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 14:59:53,242 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 14:59:53,243 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:59:53,257 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 14:59:53,257 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:59:53,258 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, thread1Thread1of1ForFork0_i#1) = 1*n - 1*thread1Thread1of1ForFork0_i#1 Supporting invariants [] [2022-09-29 14:59:53,276 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 14:59:53,278 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:59:53,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:59:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:59:53,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:59:53,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:59:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:59:53,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:59:53,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:59:53,336 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 14:59:53,360 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-09-29 14:59:53,362 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 28 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:59:53,444 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 28 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 70 states and 164 transitions. Complement of second has 6 states. [2022-09-29 14:59:53,449 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 14:59:53,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:59:53,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2022-09-29 14:59:53,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 14:59:53,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:59:53,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 5 letters. Loop has 2 letters. [2022-09-29 14:59:53,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:59:53,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 3 letters. Loop has 4 letters. [2022-09-29 14:59:53,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:59:53,457 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 164 transitions. [2022-09-29 14:59:53,461 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2022-09-29 14:59:53,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 43 states and 102 transitions. [2022-09-29 14:59:53,465 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2022-09-29 14:59:53,465 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2022-09-29 14:59:53,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 102 transitions. [2022-09-29 14:59:53,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-09-29 14:59:53,466 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43 states and 102 transitions. [2022-09-29 14:59:53,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 102 transitions. [2022-09-29 14:59:53,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2022-09-29 14:59:53,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 2.4857142857142858) internal successors, (87), 34 states have internal predecessors, (87), 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 14:59:53,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 87 transitions. [2022-09-29 14:59:53,496 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 87 transitions. [2022-09-29 14:59:53,496 INFO L428 stractBuchiCegarLoop]: Abstraction has 35 states and 87 transitions. [2022-09-29 14:59:53,496 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 14:59:53,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 87 transitions. [2022-09-29 14:59:53,499 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2022-09-29 14:59:53,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:59:53,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:59:53,499 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-09-29 14:59:53,499 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-09-29 14:59:53,500 INFO L733 eck$LassoCheckResult]: Stem: 247#[ULTIMATE.startENTRY]don't care [117] ULTIMATE.startENTRY-->L26: Formula: (and (= v_x_10 0) (= v_y_6 0)) InVars {} OutVars{y=v_y_6, x=v_x_10} AuxVars[] AssignedVars[y, x] 249#[L26]don't care [108] L26-->thread1ENTRY: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_i#1=|v_thread1Thread1of1ForFork0_i#1_14|, thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i#1, thread1Thread1of1ForFork0_thidvar0] 265#[L26-1, thread1ENTRY]don't care [111] L26-1-->thread2ENTRY: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_j#1=|v_thread2Thread1of1ForFork1_j#1_14|, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_j#1, thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 255#[thread2ENTRY, thread1ENTRY, L27]don't care [94] thread2ENTRY-->L54-1: Formula: (= |v_thread2Thread1of1ForFork1_j#1_1| 0) InVars {} OutVars{thread2Thread1of1ForFork1_j#1=|v_thread2Thread1of1ForFork1_j#1_1|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_j#1] 241#[L54-1, thread1ENTRY, L27]don't care [2022-09-29 14:59:53,500 INFO L735 eck$LassoCheckResult]: Loop: 241#[L54-1, thread1ENTRY, L27]don't care [129] L54-1-->L56: Formula: (and v_m_60 (< |v_thread2Thread1of1ForFork1_j#1_23| v_n_15) (not v_m_61)) InVars {n=v_n_15, m=v_m_61, thread2Thread1of1ForFork1_j#1=|v_thread2Thread1of1ForFork1_j#1_23|} OutVars{n=v_n_15, m=v_m_60, thread2Thread1of1ForFork1_j#1=|v_thread2Thread1of1ForFork1_j#1_23|} AuxVars[] AssignedVars[m] 243#[L56, thread1ENTRY, L27]don't care [131] L56-->L54-1: Formula: (and (= v_y_22 (+ v_y_23 (select v_A_17 |v_thread2Thread1of1ForFork1_j#1_30|))) (not v_m_76) (= |v_thread2Thread1of1ForFork1_j#1_29| (+ |v_thread2Thread1of1ForFork1_j#1_30| 1))) InVars {A=v_A_17, y=v_y_23, thread2Thread1of1ForFork1_j#1=|v_thread2Thread1of1ForFork1_j#1_30|} OutVars{A=v_A_17, m=v_m_76, y=v_y_22, thread2Thread1of1ForFork1_j#1=|v_thread2Thread1of1ForFork1_j#1_29|} AuxVars[] AssignedVars[m, y, thread2Thread1of1ForFork1_j#1] 241#[L54-1, thread1ENTRY, L27]don't care [2022-09-29 14:59:53,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:59:53,500 INFO L85 PathProgramCache]: Analyzing trace with hash 4516391, now seen corresponding path program 1 times [2022-09-29 14:59:53,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:59:53,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214217995] [2022-09-29 14:59:53,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:59:53,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:59:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:59:53,506 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:59:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:59:53,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:59:53,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:59:53,509 INFO L85 PathProgramCache]: Analyzing trace with hash 5091, now seen corresponding path program 1 times [2022-09-29 14:59:53,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:59:53,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978350079] [2022-09-29 14:59:53,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:59:53,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:59:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:59:53,512 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:59:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:59:53,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:59:53,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:59:53,517 INFO L85 PathProgramCache]: Analyzing trace with hash 45288585, now seen corresponding path program 1 times [2022-09-29 14:59:53,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:59:53,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960307671] [2022-09-29 14:59:53,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:59:53,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:59:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:59:53,522 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:59:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:59:53,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:59:53,571 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:59:53,572 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:59:53,572 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:59:53,572 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:59:53,572 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:59:53,572 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:59:53,572 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:59:53,572 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:59:53,572 INFO L133 ssoRankerPreferences]: Filename of dumped script: equal-array-sums-locked.bpl_BEv2_Iteration2_Lasso [2022-09-29 14:59:53,572 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:59:53,572 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:59:53,573 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 14:59:53,575 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 14:59:53,577 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 14:59:53,579 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 14:59:53,581 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 14:59:53,589 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 14:59:53,591 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 14:59:53,648 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:59:53,648 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:59:53,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:59:53,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:59:53,657 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 14:59:53,658 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 14:59:53,660 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 14:59:53,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:59:53,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:59:53,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:59:53,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:59:53,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:59:53,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:59:53,667 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:59:53,678 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:59:53,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-09-29 14:59:53,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:59:53,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:59:53,695 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 14:59:53,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-09-29 14:59:53,703 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 14:59:53,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:59:53,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:59:53,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:59:53,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:59:53,713 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:59:53,713 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:59:53,730 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:59:53,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-09-29 14:59:53,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:59:53,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:59:53,747 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 14:59:53,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-09-29 14:59:53,749 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 14:59:53,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:59:53,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:59:53,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:59:53,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:59:53,758 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:59:53,758 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:59:53,766 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:59:53,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-09-29 14:59:53,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:59:53,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:59:53,785 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 14:59:53,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-09-29 14:59:53,787 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 14:59:53,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:59:53,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:59:53,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:59:53,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:59:53,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:59:53,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:59:53,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:59:53,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:59:53,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-09-29 14:59:53,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:59:53,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:59:53,826 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 14:59:53,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-09-29 14:59:53,828 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 14:59:53,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:59:53,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:59:53,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:59:53,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:59:53,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:59:53,840 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:59:53,856 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:59:53,862 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-09-29 14:59:53,862 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 14:59:53,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:59:53,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:59:53,900 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 14:59:53,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-09-29 14:59:53,907 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:59:53,915 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 14:59:53,916 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:59:53,916 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread2Thread1of1ForFork1_j#1, n) = -1*thread2Thread1of1ForFork1_j#1 + 1*n Supporting invariants [] [2022-09-29 14:59:53,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-09-29 14:59:53,932 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:59:53,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:59:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:59:53,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:59:53,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:59:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:59:53,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:59:53,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:59:53,995 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 14:59:53,996 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-09-29 14:59:53,997 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 87 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:59:54,033 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 87 transitions. cyclomatic complexity: 60. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 82 states and 201 transitions. Complement of second has 6 states. [2022-09-29 14:59:54,034 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 14:59:54,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:59:54,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2022-09-29 14:59:54,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 4 letters. Loop has 2 letters. [2022-09-29 14:59:54,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:59:54,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 6 letters. Loop has 2 letters. [2022-09-29 14:59:54,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:59:54,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 4 letters. Loop has 4 letters. [2022-09-29 14:59:54,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:59:54,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 201 transitions. [2022-09-29 14:59:54,042 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 14:59:54,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 0 states and 0 transitions. [2022-09-29 14:59:54,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-09-29 14:59:54,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-09-29 14:59:54,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-09-29 14:59:54,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-29 14:59:54,043 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:59:54,043 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:59:54,043 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:59:54,044 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 14:59:54,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-09-29 14:59:54,044 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 14:59:54,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-09-29 14:59:54,053 INFO L202 PluginConnector]: Adding new model equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 02:59:54 BoogieIcfgContainer [2022-09-29 14:59:54,053 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 14:59:54,054 INFO L158 Benchmark]: Toolchain (without parser) took 1954.31ms. Allocated memory was 197.1MB in the beginning and 270.5MB in the end (delta: 73.4MB). Free memory was 157.8MB in the beginning and 188.9MB in the end (delta: -31.1MB). Peak memory consumption was 41.8MB. Max. memory is 8.0GB. [2022-09-29 14:59:54,054 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 197.1MB. Free memory was 158.9MB in the beginning and 158.8MB in the end (delta: 143.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:59:54,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.60ms. Allocated memory is still 197.1MB. Free memory was 157.7MB in the beginning and 155.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-29 14:59:54,055 INFO L158 Benchmark]: Boogie Preprocessor took 9.91ms. Allocated memory is still 197.1MB. Free memory was 155.8MB in the beginning and 154.9MB in the end (delta: 902.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 14:59:54,055 INFO L158 Benchmark]: RCFGBuilder took 197.55ms. Allocated memory is still 197.1MB. Free memory was 154.9MB in the beginning and 145.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-29 14:59:54,057 INFO L158 Benchmark]: BuchiAutomizer took 1716.27ms. Allocated memory was 197.1MB in the beginning and 270.5MB in the end (delta: 73.4MB). Free memory was 145.6MB in the beginning and 188.9MB in the end (delta: -43.3MB). Peak memory consumption was 29.2MB. Max. memory is 8.0GB. [2022-09-29 14:59:54,061 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 197.1MB. Free memory was 158.9MB in the beginning and 158.8MB in the end (delta: 143.3kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.60ms. Allocated memory is still 197.1MB. Free memory was 157.7MB in the beginning and 155.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.91ms. Allocated memory is still 197.1MB. Free memory was 155.8MB in the beginning and 154.9MB in the end (delta: 902.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 197.55ms. Allocated memory is still 197.1MB. Free memory was 154.9MB in the beginning and 145.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1716.27ms. Allocated memory was 197.1MB in the beginning and 270.5MB in the end (delta: 73.4MB). Free memory was 145.6MB in the beginning and 188.9MB in the end (delta: -43.3MB). Peak memory consumption was 29.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function -1 * j + n and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital36 mio100 ax100 hnf100 lsp64 ukn91 mio100 lsp57 div100 bol100 ite100 ukn100 eq183 hnf95 smp100 dnf100 smp100 tf100 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 81ms VariablesStem: 1 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 38 PlacesBefore, 20 PlacesAfterwards, 33 TransitionsBefore, 15 TransitionsAfterwards, 336 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 18 TotalNumberOfCompositions, 296 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 261, positive: 252, positive conditional: 0, positive unconditional: 252, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 212, positive: 205, positive conditional: 0, positive unconditional: 205, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 212, positive: 201, positive conditional: 0, positive unconditional: 201, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 49, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 261, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 212, unknown conditional: 0, unknown unconditional: 212] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 RESULT: Ultimate proved your program to be correct! [2022-09-29 14:59:54,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-09-29 14:59:54,299 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 14:59:54,502 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...