/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/concurrent_mult.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-ed1a3e5-m [2022-09-29 14:45:26,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 14:45:26,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 14:45:26,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 14:45:26,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 14:45:26,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 14:45:26,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 14:45:26,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 14:45:26,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 14:45:26,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 14:45:26,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 14:45:26,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 14:45:26,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 14:45:26,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 14:45:26,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 14:45:26,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 14:45:26,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 14:45:26,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 14:45:26,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 14:45:26,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 14:45:26,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 14:45:26,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 14:45:26,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 14:45:26,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 14:45:26,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 14:45:26,781 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 14:45:26,814 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 14:45:26,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 14:45:26,814 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 14:45:26,815 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 14:45:26,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 14:45:26,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 14:45:26,816 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 14:45:26,816 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 14:45:26,816 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 14:45:26,816 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 14:45:26,817 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 14:45:26,817 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 14:45:26,817 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 14:45:26,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 14:45:26,817 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 14:45:26,817 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 14:45:26,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 14:45:26,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 14:45:26,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 14:45:26,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 14:45:26,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 14:45:26,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 14:45:26,818 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 14:45:26,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 14:45:26,818 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 14:45:26,818 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 14:45:26,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 14:45:26,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 14:45:26,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 14:45:26,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 14:45:26,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 14:45:26,820 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 14:45:26,820 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 14:45:27,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 14:45:27,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 14:45:27,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 14:45:27,062 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 14:45:27,067 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 14:45:27,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/concurrent_mult.bpl [2022-09-29 14:45:27,069 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/concurrent_mult.bpl' [2022-09-29 14:45:27,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 14:45:27,086 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 14:45:27,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 14:45:27,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 14:45:27,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 14:45:27,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:27" (1/1) ... [2022-09-29 14:45:27,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:27" (1/1) ... [2022-09-29 14:45:27,110 INFO L137 Inliner]: procedures = 2, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-29 14:45:27,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 14:45:27,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 14:45:27,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 14:45:27,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 14:45:27,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:27" (1/1) ... [2022-09-29 14:45:27,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:27" (1/1) ... [2022-09-29 14:45:27,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:27" (1/1) ... [2022-09-29 14:45:27,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:27" (1/1) ... [2022-09-29 14:45:27,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:27" (1/1) ... [2022-09-29 14:45:27,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:27" (1/1) ... [2022-09-29 14:45:27,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:27" (1/1) ... [2022-09-29 14:45:27,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 14:45:27,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 14:45:27,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 14:45:27,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 14:45:27,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:27" (1/1) ... [2022-09-29 14:45:27,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:27,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:27,158 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 14:45:27,171 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 14:45:27,199 INFO L124 BoogieDeclarations]: Specification and implementation of procedure mult given in one single declaration [2022-09-29 14:45:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2022-09-29 14:45:27,199 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2022-09-29 14:45:27,199 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 14:45:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 14:45:27,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 14:45:27,200 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 14:45:27,241 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 14:45:27,243 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 14:45:27,322 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 14:45:27,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 14:45:27,330 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 14:45:27,332 INFO L202 PluginConnector]: Adding new model concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:45:27 BoogieIcfgContainer [2022-09-29 14:45:27,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 14:45:27,334 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 14:45:27,334 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 14:45:27,337 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 14:45:27,338 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:45:27,338 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:27" (1/2) ... [2022-09-29 14:45:27,340 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fb52e65 and model type concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 02:45:27, skipping insertion in model container [2022-09-29 14:45:27,340 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:45:27,341 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:45:27" (2/2) ... [2022-09-29 14:45:27,348 INFO L322 chiAutomizerObserver]: Analyzing ICFG concurrent_mult.bpl [2022-09-29 14:45:27,436 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 14:45:27,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 70 flow [2022-09-29 14:45:27,494 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:45:27,494 INFO L123 PetriNetUnfolderBase]: 2/23 cut-off events. [2022-09-29 14:45:27,494 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 14:45:27,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 23 events. 2/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2022-09-29 14:45:27,497 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 70 flow [2022-09-29 14:45:27,501 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 23 transitions, 58 flow [2022-09-29 14:45:27,504 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 14:45:27,527 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 23 transitions, 58 flow [2022-09-29 14:45:27,529 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 23 transitions, 58 flow [2022-09-29 14:45:27,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 23 transitions, 58 flow [2022-09-29 14:45:27,539 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:45:27,539 INFO L123 PetriNetUnfolderBase]: 2/23 cut-off events. [2022-09-29 14:45:27,539 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 14:45:27,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 23 events. 2/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2022-09-29 14:45:27,541 INFO L116 LiptonReduction]: Number of co-enabled transitions 126 [2022-09-29 14:45:27,766 INFO L131 LiptonReduction]: Checked pairs total: 76 [2022-09-29 14:45:27,766 INFO L133 LiptonReduction]: Total number of compositions: 10 [2022-09-29 14:45:27,783 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 14:45:27,783 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 14:45:27,783 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 14:45:27,783 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 14:45:27,783 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 14:45:27,783 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 14:45:27,783 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 14:45:27,784 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-09-29 14:45:27,785 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-09-29 14:45:27,811 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2022-09-29 14:45:27,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:45:27,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:45:27,815 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 14:45:27,815 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 14:45:27,815 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 14:45:27,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 19 states, but on-demand construction may add more states [2022-09-29 14:45:27,819 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2022-09-29 14:45:27,819 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:45:27,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:45:27,820 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 14:45:27,820 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 14:45:27,825 INFO L733 eck$LassoCheckResult]: Stem: 33#[ULTIMATE.startENTRY]don't care [64] ULTIMATE.startENTRY-->L19: Formula: (and (<= 0 v_ULTIMATE.start_y_6) (<= 0 v_ULTIMATE.start_x_6)) InVars {ULTIMATE.start_y=v_ULTIMATE.start_y_6, ULTIMATE.start_x=v_ULTIMATE.start_x_6} OutVars{ULTIMATE.start_y=v_ULTIMATE.start_y_6, ULTIMATE.start_x=v_ULTIMATE.start_x_6} AuxVars[] AssignedVars[] 36#[L19]don't care [52] L19-->multENTRY: Formula: (and (= v_multThread1of1ForFork0_a_6 v_ULTIMATE.start_x_3) (= v_multThread1of1ForFork0_thidvar0_2 1) (= v_multThread1of1ForFork0_b_4 v_ULTIMATE.start_y_3)) InVars {ULTIMATE.start_y=v_ULTIMATE.start_y_3, ULTIMATE.start_x=v_ULTIMATE.start_x_3} OutVars{multThread1of1ForFork0_thidvar0=v_multThread1of1ForFork0_thidvar0_2, multThread1of1ForFork0_b=v_multThread1of1ForFork0_b_4, multThread1of1ForFork0_a=v_multThread1of1ForFork0_a_6, ULTIMATE.start_y=v_ULTIMATE.start_y_3, ULTIMATE.start_x=v_ULTIMATE.start_x_3, multThread1of1ForFork0_z=v_multThread1of1ForFork0_z_8, multThread1of1ForFork0_i=v_multThread1of1ForFork0_i_12} AuxVars[] AssignedVars[multThread1of1ForFork0_thidvar0, multThread1of1ForFork0_b, multThread1of1ForFork0_a, multThread1of1ForFork0_z, multThread1of1ForFork0_i] 38#[L19-1, multENTRY]don't care [63] multENTRY-->L32-1: Formula: (and (= v_multThread1of1ForFork0_z_15 0) (= v_multThread1of1ForFork0_i_19 0)) InVars {} OutVars{multThread1of1ForFork0_z=v_multThread1of1ForFork0_z_15, multThread1of1ForFork0_i=v_multThread1of1ForFork0_i_19} AuxVars[] AssignedVars[multThread1of1ForFork0_z, multThread1of1ForFork0_i] 42#[L19-1, L32-1]don't care [2022-09-29 14:45:27,826 INFO L735 eck$LassoCheckResult]: Loop: 42#[L19-1, L32-1]don't care [66] L32-1-->L32-1: Formula: (and (= (+ v_multThread1of1ForFork0_i_22 1) v_multThread1of1ForFork0_i_21) (< v_multThread1of1ForFork0_i_22 v_multThread1of1ForFork0_a_9) (= (+ v_multThread1of1ForFork0_b_7 v_multThread1of1ForFork0_z_18) v_multThread1of1ForFork0_z_17)) InVars {multThread1of1ForFork0_b=v_multThread1of1ForFork0_b_7, multThread1of1ForFork0_a=v_multThread1of1ForFork0_a_9, multThread1of1ForFork0_z=v_multThread1of1ForFork0_z_18, multThread1of1ForFork0_i=v_multThread1of1ForFork0_i_22} OutVars{multThread1of1ForFork0_b=v_multThread1of1ForFork0_b_7, multThread1of1ForFork0_a=v_multThread1of1ForFork0_a_9, multThread1of1ForFork0_z=v_multThread1of1ForFork0_z_17, multThread1of1ForFork0_i=v_multThread1of1ForFork0_i_21} AuxVars[] AssignedVars[multThread1of1ForFork0_z, multThread1of1ForFork0_i] 42#[L19-1, L32-1]don't care [2022-09-29 14:45:27,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:27,830 INFO L85 PathProgramCache]: Analyzing trace with hash 92970, now seen corresponding path program 1 times [2022-09-29 14:45:27,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:27,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625510007] [2022-09-29 14:45:27,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:27,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,896 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:27,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:27,918 INFO L85 PathProgramCache]: Analyzing trace with hash 97, now seen corresponding path program 1 times [2022-09-29 14:45:27,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:27,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634918828] [2022-09-29 14:45:27,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:27,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,930 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:27,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:27,937 INFO L85 PathProgramCache]: Analyzing trace with hash 2882136, now seen corresponding path program 1 times [2022-09-29 14:45:27,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:27,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843895542] [2022-09-29 14:45:27,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:27,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,952 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:28,037 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:45:28,037 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:45:28,038 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:45:28,038 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:45:28,038 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-09-29 14:45:28,038 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,038 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:45:28,038 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:45:28,038 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_mult.bpl_BEv2_Iteration1_Loop [2022-09-29 14:45:28,038 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:45:28,038 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:45:28,057 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 14:45:28,065 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 14:45:28,117 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:45:28,118 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-09-29 14:45:28,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:28,127 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 14:45:28,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 14:45:28,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:45:28,149 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 14:45:28,166 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-09-29 14:45:28,166 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {multThread1of1ForFork0_b=0, multThread1of1ForFork0_z=0} Honda state: {multThread1of1ForFork0_b=0, multThread1of1ForFork0_z=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-09-29 14:45:28,192 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 14:45:28,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:28,194 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 14:45:28,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 14:45:28,202 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:45:28,212 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 14:45:28,252 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 14:45:28,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:28,254 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 14:45:28,255 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 14:45:28,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 14:45:28,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:45:28,401 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-09-29 14:45:28,404 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 14:45:28,404 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:45:28,404 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:45:28,405 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:45:28,405 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:45:28,405 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:45:28,405 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,405 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:45:28,405 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:45:28,405 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_mult.bpl_BEv2_Iteration1_Loop [2022-09-29 14:45:28,405 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:45:28,405 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:45:28,406 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 14:45:28,411 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 14:45:28,448 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:45:28,451 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:45:28,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:28,454 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 14:45:28,455 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 14:45:28,456 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 14:45:28,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:45:28,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:45:28,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:45:28,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:45:28,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:45:28,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:45:28,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:45:28,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:45:28,486 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 14:45:28,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:28,488 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 14:45:28,489 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 14:45:28,513 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 14:45:28,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:45:28,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:45:28,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:45:28,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:45:28,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:45:28,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:45:28,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:45:28,526 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:45:28,530 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-09-29 14:45:28,530 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-09-29 14:45:28,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:28,534 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 14:45:28,535 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 14:45:28,535 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:45:28,535 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-09-29 14:45:28,536 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:45:28,536 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(multThread1of1ForFork0_a, multThread1of1ForFork0_i) = 1*multThread1of1ForFork0_a - 1*multThread1of1ForFork0_i Supporting invariants [] [2022-09-29 14:45:28,551 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 14:45:28,554 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:45:28,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:45:28,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:45:28,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:45:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:45:28,604 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:45:28,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:45:28,605 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 14:45:28,645 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-09-29 14:45:28,647 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 19 states, but on-demand construction may add more states Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:45:28,708 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 19 states, but on-demand construction may add more states. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 101 transitions. Complement of second has 4 states. [2022-09-29 14:45:28,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-09-29 14:45:28,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:45:28,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2022-09-29 14:45:28,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 14:45:28,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:45:28,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 14:45:28,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:45:28,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 14:45:28,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:45:28,718 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 101 transitions. [2022-09-29 14:45:28,727 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2022-09-29 14:45:28,734 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 23 states and 53 transitions. [2022-09-29 14:45:28,735 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-09-29 14:45:28,735 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-09-29 14:45:28,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 53 transitions. [2022-09-29 14:45:28,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-09-29 14:45:28,736 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 53 transitions. [2022-09-29 14:45:28,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 53 transitions. [2022-09-29 14:45:28,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2022-09-29 14:45:28,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 states have internal predecessors, (47), 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 14:45:28,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 47 transitions. [2022-09-29 14:45:28,760 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 47 transitions. [2022-09-29 14:45:28,760 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 47 transitions. [2022-09-29 14:45:28,760 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 14:45:28,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 47 transitions. [2022-09-29 14:45:28,762 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2022-09-29 14:45:28,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:45:28,762 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:45:28,762 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-09-29 14:45:28,762 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 14:45:28,763 INFO L733 eck$LassoCheckResult]: Stem: 153#[ULTIMATE.startENTRY]don't care [64] ULTIMATE.startENTRY-->L19: Formula: (and (<= 0 v_ULTIMATE.start_y_6) (<= 0 v_ULTIMATE.start_x_6)) InVars {ULTIMATE.start_y=v_ULTIMATE.start_y_6, ULTIMATE.start_x=v_ULTIMATE.start_x_6} OutVars{ULTIMATE.start_y=v_ULTIMATE.start_y_6, ULTIMATE.start_x=v_ULTIMATE.start_x_6} AuxVars[] AssignedVars[] 155#[L19]don't care [52] L19-->multENTRY: Formula: (and (= v_multThread1of1ForFork0_a_6 v_ULTIMATE.start_x_3) (= v_multThread1of1ForFork0_thidvar0_2 1) (= v_multThread1of1ForFork0_b_4 v_ULTIMATE.start_y_3)) InVars {ULTIMATE.start_y=v_ULTIMATE.start_y_3, ULTIMATE.start_x=v_ULTIMATE.start_x_3} OutVars{multThread1of1ForFork0_thidvar0=v_multThread1of1ForFork0_thidvar0_2, multThread1of1ForFork0_b=v_multThread1of1ForFork0_b_4, multThread1of1ForFork0_a=v_multThread1of1ForFork0_a_6, ULTIMATE.start_y=v_ULTIMATE.start_y_3, ULTIMATE.start_x=v_ULTIMATE.start_x_3, multThread1of1ForFork0_z=v_multThread1of1ForFork0_z_8, multThread1of1ForFork0_i=v_multThread1of1ForFork0_i_12} AuxVars[] AssignedVars[multThread1of1ForFork0_thidvar0, multThread1of1ForFork0_b, multThread1of1ForFork0_a, multThread1of1ForFork0_z, multThread1of1ForFork0_i] 187#[L19-1, multENTRY]don't care [55] L19-1-->multENTRY: Formula: (and (= 2 v_multThread1of1ForFork1_thidvar1_2) (= 2 v_multThread1of1ForFork1_thidvar0_2) (= v_multThread1of1ForFork1_a_6 v_ULTIMATE.start_y_5) (= v_multThread1of1ForFork1_b_4 v_ULTIMATE.start_x_5)) InVars {ULTIMATE.start_y=v_ULTIMATE.start_y_5, ULTIMATE.start_x=v_ULTIMATE.start_x_5} OutVars{multThread1of1ForFork1_b=v_multThread1of1ForFork1_b_4, multThread1of1ForFork1_a=v_multThread1of1ForFork1_a_6, multThread1of1ForFork1_thidvar0=v_multThread1of1ForFork1_thidvar0_2, multThread1of1ForFork1_thidvar1=v_multThread1of1ForFork1_thidvar1_2, ULTIMATE.start_y=v_ULTIMATE.start_y_5, ULTIMATE.start_x=v_ULTIMATE.start_x_5, multThread1of1ForFork1_z=v_multThread1of1ForFork1_z_8, multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_12} AuxVars[] AssignedVars[multThread1of1ForFork1_b, multThread1of1ForFork1_a, multThread1of1ForFork1_thidvar0, multThread1of1ForFork1_thidvar1, multThread1of1ForFork1_z, multThread1of1ForFork1_i] 163#[L20, multENTRY, multENTRY]don't care [61] multENTRY-->L32-1: Formula: (and (= v_multThread1of1ForFork1_z_11 0) (= v_multThread1of1ForFork1_i_15 0)) InVars {} OutVars{multThread1of1ForFork1_z=v_multThread1of1ForFork1_z_11, multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_15} AuxVars[] AssignedVars[multThread1of1ForFork1_z, multThread1of1ForFork1_i] 165#[L32-1, L20, multENTRY]don't care [2022-09-29 14:45:28,763 INFO L735 eck$LassoCheckResult]: Loop: 165#[L32-1, L20, multENTRY]don't care [67] L32-1-->L32-1: Formula: (and (= (+ v_multThread1of1ForFork1_i_22 1) v_multThread1of1ForFork1_i_21) (< v_multThread1of1ForFork1_i_22 v_multThread1of1ForFork1_a_9) (= (+ v_multThread1of1ForFork1_b_7 v_multThread1of1ForFork1_z_18) v_multThread1of1ForFork1_z_17)) InVars {multThread1of1ForFork1_b=v_multThread1of1ForFork1_b_7, multThread1of1ForFork1_a=v_multThread1of1ForFork1_a_9, multThread1of1ForFork1_z=v_multThread1of1ForFork1_z_18, multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_22} OutVars{multThread1of1ForFork1_b=v_multThread1of1ForFork1_b_7, multThread1of1ForFork1_a=v_multThread1of1ForFork1_a_9, multThread1of1ForFork1_z=v_multThread1of1ForFork1_z_17, multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_21} AuxVars[] AssignedVars[multThread1of1ForFork1_z, multThread1of1ForFork1_i] 165#[L32-1, L20, multENTRY]don't care [2022-09-29 14:45:28,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:28,766 INFO L85 PathProgramCache]: Analyzing trace with hash 2881883, now seen corresponding path program 1 times [2022-09-29 14:45:28,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:28,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848216577] [2022-09-29 14:45:28,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:28,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:28,783 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:28,793 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:28,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:28,793 INFO L85 PathProgramCache]: Analyzing trace with hash 98, now seen corresponding path program 1 times [2022-09-29 14:45:28,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:28,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067616556] [2022-09-29 14:45:28,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:28,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:28,802 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:28,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:28,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:28,811 INFO L85 PathProgramCache]: Analyzing trace with hash 89338440, now seen corresponding path program 1 times [2022-09-29 14:45:28,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:28,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507821040] [2022-09-29 14:45:28,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:28,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:28,821 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:28,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:28,850 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:45:28,850 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:45:28,850 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:45:28,851 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:45:28,851 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-09-29 14:45:28,851 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,851 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:45:28,851 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:45:28,851 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_mult.bpl_BEv2_Iteration2_Loop [2022-09-29 14:45:28,851 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:45:28,852 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:45:28,853 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 14:45:28,859 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 14:45:28,884 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:45:28,888 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-09-29 14:45:28,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:28,892 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 14:45:28,900 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 14:45:28,900 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:45:28,910 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 14:45:28,944 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 14:45:28,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:28,946 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 14:45:28,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 14:45:28,954 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:45:28,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-09-29 14:45:29,088 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-09-29 14:45:29,091 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 14:45:29,092 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:45:29,092 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:45:29,092 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:45:29,092 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:45:29,092 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:45:29,092 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:29,092 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:45:29,092 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:45:29,092 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_mult.bpl_BEv2_Iteration2_Loop [2022-09-29 14:45:29,092 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:45:29,092 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:45:29,093 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 14:45:29,108 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 14:45:29,134 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:45:29,134 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:45:29,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:29,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:29,135 INFO L229 MonitoredProcess]: Starting monitored process 10 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 14:45:29,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-09-29 14:45:29,149 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 14:45:29,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:45:29,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:45:29,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:45:29,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:45:29,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:45:29,158 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:45:29,158 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:45:29,175 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:45:29,178 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-09-29 14:45:29,178 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-09-29 14:45:29,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:29,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:29,220 INFO L229 MonitoredProcess]: Starting monitored process 11 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 14:45:29,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-09-29 14:45:29,223 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:45:29,223 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-09-29 14:45:29,223 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:45:29,223 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(multThread1of1ForFork1_i, multThread1of1ForFork1_a) = -1*multThread1of1ForFork1_i + 1*multThread1of1ForFork1_a Supporting invariants [] [2022-09-29 14:45:29,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-09-29 14:45:29,240 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:45:29,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:45:29,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:45:29,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:45:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:45:29,272 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:45:29,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:45:29,273 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 14:45:29,274 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-09-29 14:45:29,274 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 47 transitions. cyclomatic complexity: 34 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:45:29,308 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 47 transitions. cyclomatic complexity: 34. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 81 transitions. Complement of second has 4 states. [2022-09-29 14:45:29,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-09-29 14:45:29,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:45:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2022-09-29 14:45:29,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 14:45:29,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:45:29,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 1 letters. [2022-09-29 14:45:29,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:45:29,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2022-09-29 14:45:29,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:45:29,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 81 transitions. [2022-09-29 14:45:29,314 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 14:45:29,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2022-09-29 14:45:29,314 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-09-29 14:45:29,314 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-09-29 14:45:29,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-09-29 14:45:29,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-29 14:45:29,314 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:45:29,314 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:45:29,314 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:45:29,315 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 14:45:29,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-09-29 14:45:29,315 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 14:45:29,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-09-29 14:45:29,325 INFO L202 PluginConnector]: Adding new model concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 02:45:29 BoogieIcfgContainer [2022-09-29 14:45:29,325 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 14:45:29,326 INFO L158 Benchmark]: Toolchain (without parser) took 2239.01ms. Allocated memory is still 175.1MB. Free memory was 135.2MB in the beginning and 108.8MB in the end (delta: 26.3MB). Peak memory consumption was 25.3MB. Max. memory is 8.0GB. [2022-09-29 14:45:29,326 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 175.1MB. Free memory is still 136.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:45:29,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.96ms. Allocated memory is still 175.1MB. Free memory was 135.2MB in the beginning and 133.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 14:45:29,328 INFO L158 Benchmark]: Boogie Preprocessor took 12.32ms. Allocated memory is still 175.1MB. Free memory was 133.7MB in the beginning and 132.7MB in the end (delta: 991.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:45:29,328 INFO L158 Benchmark]: RCFGBuilder took 206.54ms. Allocated memory is still 175.1MB. Free memory was 132.7MB in the beginning and 124.3MB in the end (delta: 8.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-09-29 14:45:29,330 INFO L158 Benchmark]: BuchiAutomizer took 1991.30ms. Allocated memory is still 175.1MB. Free memory was 124.3MB in the beginning and 108.8MB in the end (delta: 15.5MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. [2022-09-29 14:45:29,334 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 0.16ms. Allocated memory is still 175.1MB. Free memory is still 136.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.96ms. Allocated memory is still 175.1MB. Free memory was 135.2MB in the beginning and 133.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.32ms. Allocated memory is still 175.1MB. Free memory was 133.7MB in the beginning and 132.7MB in the end (delta: 991.2kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 206.54ms. Allocated memory is still 175.1MB. Free memory was 132.7MB in the beginning and 124.3MB in the end (delta: 8.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1991.30ms. Allocated memory is still 175.1MB. Free memory was 124.3MB in the beginning and 108.8MB in the end (delta: 15.5MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + a and consists of 3 locations. One deterministic module has affine ranking function -1 * i + a and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. 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, 3 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, 28 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 1 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s 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: 0.2s, 28 PlacesBefore, 18 PlacesAfterwards, 23 TransitionsBefore, 13 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 76 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 76, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 68, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 68, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 76, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 68, unknown conditional: 0, unknown unconditional: 68] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2022-09-29 14:45:29,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-09-29 14:45:29,573 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 14:45:29,775 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...