/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-ed1a3e5-m [2022-09-29 14:47:43,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 14:47:43,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 14:47:43,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 14:47:43,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 14:47:43,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 14:47:43,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 14:47:43,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 14:47:43,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 14:47:43,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 14:47:43,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 14:47:43,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 14:47:43,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 14:47:43,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 14:47:43,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 14:47:43,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 14:47:43,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 14:47:43,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 14:47:43,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 14:47:43,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 14:47:43,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 14:47:43,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 14:47:43,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 14:47:43,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 14:47:43,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 14:47:43,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 14:47:43,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 14:47:43,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 14:47:43,838 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 14:47:43,852 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 14:47:43,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 14:47:43,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 14:47:43,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 14:47:43,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 14:47:43,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 14:47:43,854 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 14:47:43,854 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 14:47:43,854 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 14:47:43,854 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 14:47:43,854 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 14:47:43,854 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 14:47:43,855 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 14:47:43,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 14:47:43,855 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 14:47:43,855 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 14:47:43,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 14:47:43,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 14:47:43,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 14:47:43,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 14:47:43,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 14:47:43,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 14:47:43,855 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 14:47:43,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 14:47:43,856 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 14:47:43,856 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 14:47:43,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 14:47:43,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 14:47:43,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 14:47:43,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 14:47:43,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 14:47:43,857 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 14:47:43,857 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 14:47:44,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 14:47:44,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 14:47:44,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 14:47:44,050 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 14:47:44,052 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 14:47:44,053 INFO L432 ainManager$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 14:47:44,053 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/equal-array-sums-locked.bpl' [2022-09-29 14:47:44,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 14:47:44,076 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 14:47:44,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 14:47:44,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 14:47:44,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 14:47:44,084 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 02:47:44" (1/1) ... [2022-09-29 14:47:44,089 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 02:47:44" (1/1) ... [2022-09-29 14:47:44,103 INFO L137 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 20 [2022-09-29 14:47:44,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 14:47:44,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 14:47:44,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 14:47:44,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 14:47:44,110 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 02:47:44" (1/1) ... [2022-09-29 14:47:44,110 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 02:47:44" (1/1) ... [2022-09-29 14:47:44,111 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 02:47:44" (1/1) ... [2022-09-29 14:47:44,112 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 02:47:44" (1/1) ... [2022-09-29 14:47:44,114 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 02:47:44" (1/1) ... [2022-09-29 14:47:44,116 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 02:47:44" (1/1) ... [2022-09-29 14:47:44,116 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 02:47:44" (1/1) ... [2022-09-29 14:47:44,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 14:47:44,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 14:47:44,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 14:47:44,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 14:47:44,121 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 02:47:44" (1/1) ... [2022-09-29 14:47:44,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:44,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:44,140 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 14:47:44,158 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 14:47:44,178 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-09-29 14:47:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-29 14:47:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-29 14:47:44,178 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-09-29 14:47:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-29 14:47:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-29 14:47:44,178 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 14:47:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 14:47:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 14:47:44,179 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 14:47:44,210 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 14:47:44,210 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 14:47:44,272 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 14:47:44,280 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 14:47:44,280 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 14:47:44,281 INFO L202 PluginConnector]: Adding new model equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:47:44 BoogieIcfgContainer [2022-09-29 14:47:44,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 14:47:44,282 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 14:47:44,282 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 14:47:44,294 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 14:47:44,295 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:47:44,295 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 02:47:44" (1/2) ... [2022-09-29 14:47:44,312 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1235722a and model type equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 02:47:44, skipping insertion in model container [2022-09-29 14:47:44,312 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:47:44,312 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 02:47:44" (2/2) ... [2022-09-29 14:47:44,313 INFO L322 chiAutomizerObserver]: Analyzing ICFG equal-array-sums-locked.bpl [2022-09-29 14:47:44,372 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 14:47:44,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 90 flow [2022-09-29 14:47:44,421 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:47:44,421 INFO L123 PetriNetUnfolderBase]: 2/33 cut-off events. [2022-09-29 14:47:44,421 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 14:47:44,423 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 14:47:44,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 37 transitions, 90 flow [2022-09-29 14:47:44,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 33 transitions, 78 flow [2022-09-29 14:47:44,429 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 14:47:44,445 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 33 transitions, 78 flow [2022-09-29 14:47:44,449 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 33 transitions, 78 flow [2022-09-29 14:47:44,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 33 transitions, 78 flow [2022-09-29 14:47:44,467 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:47:44,467 INFO L123 PetriNetUnfolderBase]: 2/33 cut-off events. [2022-09-29 14:47:44,467 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 14:47:44,468 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 14:47:44,470 INFO L116 LiptonReduction]: Number of co-enabled transitions 336 [2022-09-29 14:47:44,746 INFO L131 LiptonReduction]: Checked pairs total: 296 [2022-09-29 14:47:44,746 INFO L133 LiptonReduction]: Total number of compositions: 18 [2022-09-29 14:47:44,763 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 14:47:44,763 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 14:47:44,763 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 14:47:44,763 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 14:47:44,763 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 14:47:44,763 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 14:47:44,763 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 14:47:44,764 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-09-29 14:47:44,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-09-29 14:47:44,788 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 16 [2022-09-29 14:47:44,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:47:44,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:47:44,791 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 14:47:44,792 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-09-29 14:47:44,792 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 14:47:44,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 28 states, but on-demand construction may add more states [2022-09-29 14:47:44,794 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 16 [2022-09-29 14:47:44,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:47:44,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:47:44,794 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 14:47:44,795 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-09-29 14:47:44,798 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#[thread1ENTRY, L26-1]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#[L40-1, L26-1]don't care [2022-09-29 14:47:44,798 INFO L735 eck$LassoCheckResult]: Loop: 50#[L40-1, L26-1]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#[L42, L26-1]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#[L40-1, L26-1]don't care [2022-09-29 14:47:44,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:44,801 INFO L85 PathProgramCache]: Analyzing trace with hash 145658, now seen corresponding path program 1 times [2022-09-29 14:47:44,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:44,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531640019] [2022-09-29 14:47:44,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:44,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:44,854 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:44,868 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:44,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:44,870 INFO L85 PathProgramCache]: Analyzing trace with hash 5059, now seen corresponding path program 1 times [2022-09-29 14:47:44,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:44,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576636194] [2022-09-29 14:47:44,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:44,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:44,886 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:44,890 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:44,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:44,892 INFO L85 PathProgramCache]: Analyzing trace with hash 139981436, now seen corresponding path program 1 times [2022-09-29 14:47:44,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:44,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840779174] [2022-09-29 14:47:44,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:44,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:44,903 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:44,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:45,024 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:45,025 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:45,025 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:45,026 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:45,026 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:47:45,026 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,026 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:45,026 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:45,026 INFO L133 ssoRankerPreferences]: Filename of dumped script: equal-array-sums-locked.bpl_BEv2_Iteration1_Lasso [2022-09-29 14:47:45,026 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:45,026 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:45,036 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 14:47:45,061 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 14:47:45,063 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 14:47:45,067 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 14:47:45,122 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:45,125 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:47:45,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:45,128 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 14:47:45,129 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 14:47:45,131 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 14:47:45,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:45,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:45,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:45,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:45,158 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:47:45,158 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:47:45,173 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:47:45,196 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-09-29 14:47:45,196 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 14:47:45,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:45,199 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 14:47:45,200 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 14:47:45,201 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:47:45,238 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 14:47:45,239 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:47:45,239 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 14:47:45,258 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 14:47:45,260 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:47:45,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:45,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:47:45,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:45,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:47:45,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:45,314 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 14:47:45,337 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 14:47:45,338 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 14:47:45,402 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 14:47:45,405 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 14:47:45,411 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 14:47:45,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2022-09-29 14:47:45,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 14:47:45,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:45,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 5 letters. Loop has 2 letters. [2022-09-29 14:47:45,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:45,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 3 letters. Loop has 4 letters. [2022-09-29 14:47:45,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:45,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 164 transitions. [2022-09-29 14:47:45,425 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2022-09-29 14:47:45,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 43 states and 102 transitions. [2022-09-29 14:47:45,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2022-09-29 14:47:45,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2022-09-29 14:47:45,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 102 transitions. [2022-09-29 14:47:45,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-09-29 14:47:45,430 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43 states and 102 transitions. [2022-09-29 14:47:45,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 102 transitions. [2022-09-29 14:47:45,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2022-09-29 14:47:45,449 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 14:47:45,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 87 transitions. [2022-09-29 14:47:45,464 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 87 transitions. [2022-09-29 14:47:45,464 INFO L428 stractBuchiCegarLoop]: Abstraction has 35 states and 87 transitions. [2022-09-29 14:47:45,464 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 14:47:45,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 87 transitions. [2022-09-29 14:47:45,466 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2022-09-29 14:47:45,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:47:45,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:47:45,466 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-09-29 14:47:45,466 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-09-29 14:47:45,467 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#[thread1ENTRY, L26-1]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#[L27, thread1ENTRY, thread2ENTRY]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#[L27, thread1ENTRY, L54-1]don't care [2022-09-29 14:47:45,467 INFO L735 eck$LassoCheckResult]: Loop: 241#[L27, thread1ENTRY, L54-1]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, L27, thread1ENTRY]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#[L27, thread1ENTRY, L54-1]don't care [2022-09-29 14:47:45,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:45,469 INFO L85 PathProgramCache]: Analyzing trace with hash 4516391, now seen corresponding path program 1 times [2022-09-29 14:47:45,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:45,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266375812] [2022-09-29 14:47:45,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:45,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:45,483 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:45,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:45,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:45,492 INFO L85 PathProgramCache]: Analyzing trace with hash 5091, now seen corresponding path program 1 times [2022-09-29 14:47:45,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:45,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299255757] [2022-09-29 14:47:45,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:45,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:45,504 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:45,507 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:45,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:45,508 INFO L85 PathProgramCache]: Analyzing trace with hash 45288585, now seen corresponding path program 1 times [2022-09-29 14:47:45,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:45,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094303582] [2022-09-29 14:47:45,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:45,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:45,512 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:45,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:45,569 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:45,569 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:45,569 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:45,569 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:45,569 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:47:45,569 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,569 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:45,569 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:45,569 INFO L133 ssoRankerPreferences]: Filename of dumped script: equal-array-sums-locked.bpl_BEv2_Iteration2_Lasso [2022-09-29 14:47:45,569 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:45,570 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:45,571 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 14:47:45,572 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 14:47:45,575 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 14:47:45,576 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 14:47:45,579 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 14:47:45,588 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 14:47:45,590 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 14:47:45,647 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:45,647 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:47:45,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:45,652 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 14:47:45,653 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 14:47:45,655 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 14:47:45,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:45,662 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:47:45,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:45,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:45,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:45,663 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:47:45,663 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:47:45,678 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:47:45,695 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 14:47:45,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:45,697 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 14:47:45,705 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 14:47:45,706 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 14:47:45,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:45,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:45,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:45,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:45,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:47:45,714 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:47:45,734 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:47:45,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-09-29 14:47:45,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:45,751 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 14:47:45,751 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 14:47:45,753 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 14:47:45,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:45,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:45,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:45,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:45,760 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:47:45,760 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:47:45,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:47:45,791 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 14:47:45,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:45,793 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 14:47:45,794 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 14:47:45,796 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 14:47:45,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:45,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:47:45,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:45,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:45,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:45,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:47:45,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:47:45,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:47:45,818 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 14:47:45,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:45,819 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 14:47:45,820 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 14:47:45,822 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 14:47:45,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:45,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:45,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:45,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:45,830 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:47:45,830 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:47:45,843 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:47:45,849 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-09-29 14:47:45,849 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 14:47:45,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:45,890 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 14:47:45,891 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 14:47:45,920 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:47:45,926 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 14:47:45,927 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:47:45,927 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 14:47:45,941 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 14:47:45,942 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:47:45,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:45,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:47:45,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:45,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:47:45,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:45,991 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 14:47:45,992 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 14:47:45,992 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 14:47:46,018 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 14:47:46,018 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 14:47:46,019 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 14:47:46,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2022-09-29 14:47:46,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 4 letters. Loop has 2 letters. [2022-09-29 14:47:46,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:46,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 6 letters. Loop has 2 letters. [2022-09-29 14:47:46,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:46,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 4 letters. Loop has 4 letters. [2022-09-29 14:47:46,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:46,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 201 transitions. [2022-09-29 14:47:46,021 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 14:47:46,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 0 states and 0 transitions. [2022-09-29 14:47:46,021 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-09-29 14:47:46,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-09-29 14:47:46,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-09-29 14:47:46,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-29 14:47:46,021 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:47:46,021 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:47:46,021 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:47:46,021 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 14:47:46,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-09-29 14:47:46,021 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 14:47:46,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-09-29 14:47:46,025 INFO L202 PluginConnector]: Adding new model equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 02:47:46 BoogieIcfgContainer [2022-09-29 14:47:46,025 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 14:47:46,026 INFO L158 Benchmark]: Toolchain (without parser) took 1950.19ms. Allocated memory was 198.2MB in the beginning and 251.7MB in the end (delta: 53.5MB). Free memory was 158.8MB in the beginning and 171.4MB in the end (delta: -12.6MB). Peak memory consumption was 41.4MB. Max. memory is 8.0GB. [2022-09-29 14:47:46,026 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 198.2MB. Free memory was 160.0MB in the beginning and 159.8MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:47:46,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.77ms. Allocated memory is still 198.2MB. Free memory was 158.7MB in the beginning and 156.8MB in the end (delta: 1.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-29 14:47:46,027 INFO L158 Benchmark]: Boogie Preprocessor took 13.36ms. Allocated memory is still 198.2MB. Free memory was 156.8MB in the beginning and 155.9MB in the end (delta: 894.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 14:47:46,027 INFO L158 Benchmark]: RCFGBuilder took 161.36ms. Allocated memory is still 198.2MB. Free memory was 155.9MB in the beginning and 146.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-29 14:47:46,028 INFO L158 Benchmark]: BuchiAutomizer took 1743.19ms. Allocated memory was 198.2MB in the beginning and 251.7MB in the end (delta: 53.5MB). Free memory was 146.6MB in the beginning and 171.4MB in the end (delta: -24.8MB). Peak memory consumption was 27.8MB. Max. memory is 8.0GB. [2022-09-29 14:47:46,029 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 0.12ms. Allocated memory is still 198.2MB. Free memory was 160.0MB in the beginning and 159.8MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.77ms. Allocated memory is still 198.2MB. Free memory was 158.7MB in the beginning and 156.8MB in the end (delta: 1.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.36ms. Allocated memory is still 198.2MB. Free memory was 156.8MB in the beginning and 155.9MB in the end (delta: 894.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 161.36ms. Allocated memory is still 198.2MB. Free memory was 155.9MB in the beginning and 146.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1743.19ms. Allocated memory was 198.2MB in the beginning and 251.7MB in the end (delta: 53.5MB). Free memory was 146.6MB in the beginning and 171.4MB in the end (delta: -24.8MB). Peak memory consumption was 27.8MB. 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 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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, 0.0s 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: 112ms 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: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 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: 33, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 19, negative conditional: 0, negative unconditional: 19, 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 14:47:46,054 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 14:47:46,256 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 14:47:46,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...