/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_increment.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-ed1a3e5-m [2022-09-29 14:47:44,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 14:47:44,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 14:47:44,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-29 14:47:44,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 14:47:44,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 14:47:44,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 14:47:44,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 14:47:44,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 14:47:44,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 14:47:44,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 14:47:44,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 14:47:44,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 14:47:44,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 14:47:44,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 14:47:44,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 14:47:44,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 14:47:44,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 14:47:44,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 14:47:44,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 14:47:44,194 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 14:47:44,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 14:47:44,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 14:47:44,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 14:47:44,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 14:47:44,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 14:47:44,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 14:47:44,215 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 14:47:44,215 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 14:47:44,215 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 14:47:44,215 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 14:47:44,215 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 14:47:44,216 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 14:47:44,216 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 14:47:44,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 14:47:44,216 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 14:47:44,216 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 14:47:44,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 14:47:44,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 14:47:44,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 14:47:44,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 14:47:44,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 14:47:44,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 14:47:44,217 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 14:47:44,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 14:47:44,217 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 14:47:44,217 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 14:47:44,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 14:47:44,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 14:47:44,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 14:47:44,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 14:47:44,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 14:47:44,219 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 14:47:44,219 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 14:47:44,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 14:47:44,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 14:47:44,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 14:47:44,479 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 14:47:44,480 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 14:47:44,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/concurrent_increment.bpl [2022-09-29 14:47:44,482 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/concurrent_increment.bpl' [2022-09-29 14:47:44,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 14:47:44,503 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 14:47:44,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 14:47:44,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 14:47:44,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 14:47:44,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:44" (1/1) ... [2022-09-29 14:47:44,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:44" (1/1) ... [2022-09-29 14:47:44,525 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-29 14:47:44,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 14:47:44,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 14:47:44,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 14:47:44,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 14:47:44,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:44" (1/1) ... [2022-09-29 14:47:44,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:44" (1/1) ... [2022-09-29 14:47:44,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:44" (1/1) ... [2022-09-29 14:47:44,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:44" (1/1) ... [2022-09-29 14:47:44,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:44" (1/1) ... [2022-09-29 14:47:44,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:44" (1/1) ... [2022-09-29 14:47:44,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:44" (1/1) ... [2022-09-29 14:47:44,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 14:47:44,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 14:47:44,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 14:47:44,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 14:47:44,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:44" (1/1) ... [2022-09-29 14:47:44,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:44,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:44,577 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 14:47:44,590 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 14:47:44,613 INFO L124 BoogieDeclarations]: Specification and implementation of procedure dec given in one single declaration [2022-09-29 14:47:44,613 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2022-09-29 14:47:44,613 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2022-09-29 14:47:44,613 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 14:47:44,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 14:47:44,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 14:47:44,614 INFO L124 BoogieDeclarations]: Specification and implementation of procedure inc given in one single declaration [2022-09-29 14:47:44,614 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2022-09-29 14:47:44,614 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2022-09-29 14:47:44,615 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 14:47:44,660 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 14:47:44,662 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 14:47:44,757 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 14:47:44,766 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 14:47:44,766 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 14:47:44,769 INFO L202 PluginConnector]: Adding new model concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:47:44 BoogieIcfgContainer [2022-09-29 14:47:44,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 14:47:44,771 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 14:47:44,771 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 14:47:44,776 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 14:47:44,776 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:47:44,776 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:44" (1/2) ... [2022-09-29 14:47:44,778 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e691f21 and model type concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 02:47:44, skipping insertion in model container [2022-09-29 14:47:44,778 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:47:44,778 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:47:44" (2/2) ... [2022-09-29 14:47:44,785 INFO L322 chiAutomizerObserver]: Analyzing ICFG concurrent_increment.bpl [2022-09-29 14:47:44,866 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 14:47:44,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 24 transitions, 64 flow [2022-09-29 14:47:44,935 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:47:44,945 INFO L123 PetriNetUnfolderBase]: 2/20 cut-off events. [2022-09-29 14:47:44,946 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 14:47:44,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 20 events. 2/20 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2022-09-29 14:47:44,949 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 24 transitions, 64 flow [2022-09-29 14:47:44,955 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 20 transitions, 52 flow [2022-09-29 14:47:44,958 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 14:47:44,980 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 20 transitions, 52 flow [2022-09-29 14:47:44,983 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 20 transitions, 52 flow [2022-09-29 14:47:44,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 20 transitions, 52 flow [2022-09-29 14:47:44,990 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:47:44,991 INFO L123 PetriNetUnfolderBase]: 2/20 cut-off events. [2022-09-29 14:47:44,991 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 14:47:44,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 20 events. 2/20 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2022-09-29 14:47:44,993 INFO L116 LiptonReduction]: Number of co-enabled transitions 96 [2022-09-29 14:47:45,203 INFO L131 LiptonReduction]: Checked pairs total: 63 [2022-09-29 14:47:45,204 INFO L133 LiptonReduction]: Total number of compositions: 7 [2022-09-29 14:47:45,220 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 14:47:45,221 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 14:47:45,221 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 14:47:45,221 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 14:47:45,221 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 14:47:45,221 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 14:47:45,221 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 14:47:45,221 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-09-29 14:47:45,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-09-29 14:47:45,255 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2022-09-29 14:47:45,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:47:45,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:47:45,259 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 14:47:45,259 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 14:47:45,260 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 14:47:45,260 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 19 states, but on-demand construction may add more states [2022-09-29 14:47:45,264 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2022-09-29 14:47:45,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:47:45,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:47:45,264 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 14:47:45,264 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 14:47:45,269 INFO L733 eck$LassoCheckResult]: Stem: 30#[ULTIMATE.startENTRY]don't care [29] ULTIMATE.startENTRY-->L20: Formula: (= v_x_4 0) InVars {} OutVars{x=v_x_4} AuxVars[] AssignedVars[x] 33#[L20]don't care [62] L20-->incENTRY: Formula: (= v_incThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{incThread1of1ForFork0_i=v_incThread1of1ForFork0_i_12, incThread1of1ForFork0_thidvar0=v_incThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[incThread1of1ForFork0_i, incThread1of1ForFork0_thidvar0] 35#[L20-1, incENTRY]don't care [54] incENTRY-->L33-1: Formula: (= v_incThread1of1ForFork0_i_1 0) InVars {} OutVars{incThread1of1ForFork0_i=v_incThread1of1ForFork0_i_1} AuxVars[] AssignedVars[incThread1of1ForFork0_i] 39#[L33-1, L20-1]don't care [2022-09-29 14:47:45,269 INFO L735 eck$LassoCheckResult]: Loop: 39#[L33-1, L20-1]don't care [74] L33-1-->L33-1: Formula: (and (= v_x_34 (+ v_x_35 1)) (= v_incThread1of1ForFork0_i_19 (+ v_incThread1of1ForFork0_i_20 1)) (< v_incThread1of1ForFork0_i_20 v_n_11)) InVars {n=v_n_11, incThread1of1ForFork0_i=v_incThread1of1ForFork0_i_20, x=v_x_35} OutVars{n=v_n_11, incThread1of1ForFork0_i=v_incThread1of1ForFork0_i_19, x=v_x_34} AuxVars[] AssignedVars[incThread1of1ForFork0_i, x] 39#[L33-1, L20-1]don't care [2022-09-29 14:47:45,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:45,274 INFO L85 PathProgramCache]: Analyzing trace with hash 59636, now seen corresponding path program 1 times [2022-09-29 14:47:45,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:45,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172859750] [2022-09-29 14:47:45,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:45,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:45,350 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:45,375 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:45,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:45,378 INFO L85 PathProgramCache]: Analyzing trace with hash 105, now seen corresponding path program 1 times [2022-09-29 14:47:45,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:45,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991240051] [2022-09-29 14:47:45,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:45,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:45,398 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:45,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:45,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:45,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1848790, now seen corresponding path program 1 times [2022-09-29 14:47:45,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:45,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060082258] [2022-09-29 14:47:45,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:45,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:45,417 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:45,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:45,465 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:45,465 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:45,465 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:45,466 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:45,466 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-09-29 14:47:45,466 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,466 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:45,466 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:45,466 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_increment.bpl_BEv2_Iteration1_Loop [2022-09-29 14:47:45,466 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:45,467 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:45,507 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 14:47:45,530 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 14:47:45,563 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:45,564 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-09-29 14:47:45,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:45,571 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 14:47:45,583 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 14:47:45,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 14:47:45,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:47:45,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-09-29 14:47:45,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:45,622 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 14:47:45,622 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 14:47:45,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 14:47:45,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:47:45,753 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-09-29 14:47:45,756 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 14:47:45,757 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:45,757 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:45,757 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:45,757 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:45,757 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:47:45,757 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,757 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:45,757 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:45,758 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_increment.bpl_BEv2_Iteration1_Loop [2022-09-29 14:47:45,758 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:45,758 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:45,759 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 14:47:45,765 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 14:47:45,790 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:45,793 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:47:45,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:45,796 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 14:47:45,804 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 14:47:45,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:45,812 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:47:45,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:45,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:45,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:45,813 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 14:47:45,814 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:47:45,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:47:45,818 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:47:45,836 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-09-29 14:47:45,837 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-09-29 14:47:45,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:45,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:45,848 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 14:47:45,907 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:47:45,907 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-09-29 14:47:45,908 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:47:45,908 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(incThread1of1ForFork0_i, n) = -1*incThread1of1ForFork0_i + 1*n Supporting invariants [] [2022-09-29 14:47:45,909 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 14:47:45,933 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 14:47:45,935 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:47:45,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:45,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:47:45,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:46,006 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:47:46,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:46,007 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 14:47:46,045 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 14:47:46,047 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 14:47:46,109 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 14:47:46,111 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 14:47:46,116 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 14:47:46,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2022-09-29 14:47:46,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 14:47:46,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:46,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 14:47:46,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:46,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 14:47:46,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:46,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 101 transitions. [2022-09-29 14:47:46,130 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2022-09-29 14:47:46,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 23 states and 53 transitions. [2022-09-29 14:47:46,137 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-09-29 14:47:46,138 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-09-29 14:47:46,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 53 transitions. [2022-09-29 14:47:46,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-09-29 14:47:46,139 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 53 transitions. [2022-09-29 14:47:46,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 53 transitions. [2022-09-29 14:47:46,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2022-09-29 14:47:46,162 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 14:47:46,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 47 transitions. [2022-09-29 14:47:46,164 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 47 transitions. [2022-09-29 14:47:46,164 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 47 transitions. [2022-09-29 14:47:46,164 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 14:47:46,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 47 transitions. [2022-09-29 14:47:46,166 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2022-09-29 14:47:46,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:47:46,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:47:46,166 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-09-29 14:47:46,166 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 14:47:46,167 INFO L733 eck$LassoCheckResult]: Stem: 156#[ULTIMATE.startENTRY]don't care [29] ULTIMATE.startENTRY-->L20: Formula: (= v_x_4 0) InVars {} OutVars{x=v_x_4} AuxVars[] AssignedVars[x] 158#[L20]don't care [62] L20-->incENTRY: Formula: (= v_incThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{incThread1of1ForFork0_i=v_incThread1of1ForFork0_i_12, incThread1of1ForFork0_thidvar0=v_incThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[incThread1of1ForFork0_i, incThread1of1ForFork0_thidvar0] 178#[L20-1, incENTRY]don't care [65] L20-1-->decENTRY: Formula: (and (= v_decThread1of1ForFork1_thidvar1_2 2) (= v_decThread1of1ForFork1_thidvar0_2 2)) InVars {} OutVars{decThread1of1ForFork1_thidvar0=v_decThread1of1ForFork1_thidvar0_2, decThread1of1ForFork1_thidvar1=v_decThread1of1ForFork1_thidvar1_2, decThread1of1ForFork1_i=v_decThread1of1ForFork1_i_12} AuxVars[] AssignedVars[decThread1of1ForFork1_thidvar0, decThread1of1ForFork1_thidvar1, decThread1of1ForFork1_i] 172#[incENTRY, decENTRY, L21]don't care [48] decENTRY-->L44-1: Formula: (= 0 v_decThread1of1ForFork1_i_1) InVars {} OutVars{decThread1of1ForFork1_i=v_decThread1of1ForFork1_i_1} AuxVars[] AssignedVars[decThread1of1ForFork1_i] 174#[incENTRY, L44-1, L21]don't care [2022-09-29 14:47:46,167 INFO L735 eck$LassoCheckResult]: Loop: 174#[incENTRY, L44-1, L21]don't care [73] L44-1-->L44-1: Formula: (and (= (+ (- 1) v_x_31) v_x_30) (= v_decThread1of1ForFork1_i_19 (+ v_decThread1of1ForFork1_i_20 1)) (< v_decThread1of1ForFork1_i_20 v_n_9)) InVars {n=v_n_9, x=v_x_31, decThread1of1ForFork1_i=v_decThread1of1ForFork1_i_20} OutVars{n=v_n_9, x=v_x_30, decThread1of1ForFork1_i=v_decThread1of1ForFork1_i_19} AuxVars[] AssignedVars[x, decThread1of1ForFork1_i] 174#[incENTRY, L44-1, L21]don't care [2022-09-29 14:47:46,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:46,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1849105, now seen corresponding path program 1 times [2022-09-29 14:47:46,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:46,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807792077] [2022-09-29 14:47:46,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:46,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:46,184 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:46,193 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:46,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:46,193 INFO L85 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 1 times [2022-09-29 14:47:46,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:46,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102755856] [2022-09-29 14:47:46,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:46,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:46,206 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:46,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:46,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:46,210 INFO L85 PathProgramCache]: Analyzing trace with hash 57322328, now seen corresponding path program 1 times [2022-09-29 14:47:46,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:46,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193929397] [2022-09-29 14:47:46,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:46,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:46,215 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:46,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:46,246 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:46,246 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:46,246 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:46,246 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:46,246 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-09-29 14:47:46,247 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:46,247 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:46,247 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:46,247 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_increment.bpl_BEv2_Iteration2_Loop [2022-09-29 14:47:46,247 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:46,247 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:46,248 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 14:47:46,253 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 14:47:46,281 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:46,281 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-09-29 14:47:46,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:46,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:46,284 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 14:47:46,292 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 14:47:46,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 14:47:46,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:47:46,318 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 14:47:46,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:46,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:46,320 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 14:47:46,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 14:47:46,333 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:47:46,333 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 14:47:46,468 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-09-29 14:47:46,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-09-29 14:47:46,471 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:46,471 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:46,471 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:46,471 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:46,471 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:47:46,471 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:46,472 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:46,472 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:46,472 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_increment.bpl_BEv2_Iteration2_Loop [2022-09-29 14:47:46,472 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:46,472 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:46,472 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 14:47:46,488 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 14:47:46,514 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:46,514 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:47:46,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:46,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:46,516 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 14:47:46,524 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 14:47:46,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:46,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:47:46,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:46,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:46,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:46,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:47:46,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:47:46,536 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 14:47:46,551 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:47:46,556 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-09-29 14:47:46,556 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-09-29 14:47:46,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:46,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:46,596 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 14:47:46,599 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 14:47:46,600 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:47:46,600 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-09-29 14:47:46,600 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:47:46,600 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, decThread1of1ForFork1_i) = 1*n - 1*decThread1of1ForFork1_i Supporting invariants [] [2022-09-29 14:47:46,624 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 14:47:46,625 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:47:46,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:46,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:47:46,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:46,657 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:47:46,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:46,658 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 14:47:46,659 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 14:47:46,659 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 14:47:46,683 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 14:47:46,683 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 14:47:46,684 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 14:47:46,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2022-09-29 14:47:46,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 14:47:46,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:46,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 1 letters. [2022-09-29 14:47:46,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:46,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2022-09-29 14:47:46,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:46,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 81 transitions. [2022-09-29 14:47:46,686 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 14:47:46,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2022-09-29 14:47:46,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-09-29 14:47:46,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-09-29 14:47:46,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-09-29 14:47:46,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-29 14:47:46,686 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:47:46,687 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:47:46,687 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:47:46,687 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 14:47:46,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-09-29 14:47:46,687 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 14:47:46,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-09-29 14:47:46,692 INFO L202 PluginConnector]: Adding new model concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 02:47:46 BoogieIcfgContainer [2022-09-29 14:47:46,692 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 14:47:46,693 INFO L158 Benchmark]: Toolchain (without parser) took 2189.83ms. Allocated memory was 199.2MB in the beginning and 272.6MB in the end (delta: 73.4MB). Free memory was 153.4MB in the beginning and 203.9MB in the end (delta: -50.5MB). Peak memory consumption was 24.2MB. Max. memory is 8.0GB. [2022-09-29 14:47:46,693 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.19ms. Allocated memory is still 199.2MB. Free memory is still 154.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:47:46,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.42ms. Allocated memory is still 199.2MB. Free memory was 153.3MB in the beginning and 151.8MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-29 14:47:46,694 INFO L158 Benchmark]: Boogie Preprocessor took 14.80ms. Allocated memory is still 199.2MB. Free memory was 151.8MB in the beginning and 150.9MB in the end (delta: 901.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 14:47:46,694 INFO L158 Benchmark]: RCFGBuilder took 226.03ms. Allocated memory is still 199.2MB. Free memory was 150.8MB in the beginning and 142.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-29 14:47:46,695 INFO L158 Benchmark]: BuchiAutomizer took 1920.93ms. Allocated memory was 199.2MB in the beginning and 272.6MB in the end (delta: 73.4MB). Free memory was 142.3MB in the beginning and 203.9MB in the end (delta: -61.6MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. [2022-09-29 14:47:46,697 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 0.19ms. Allocated memory is still 199.2MB. Free memory is still 154.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.42ms. Allocated memory is still 199.2MB. Free memory was 153.3MB in the beginning and 151.8MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.80ms. Allocated memory is still 199.2MB. Free memory was 151.8MB in the beginning and 150.9MB in the end (delta: 901.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 226.03ms. Allocated memory is still 199.2MB. Free memory was 150.8MB in the beginning and 142.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1920.93ms. Allocated memory was 199.2MB in the beginning and 272.6MB in the end (delta: 73.4MB). Free memory was 142.3MB in the beginning and 203.9MB in the end (delta: -61.6MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 3 locations. One deterministic module has affine ranking function -1 * i + n and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 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, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 9 mSDtfsCounter, 31 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: sat Degree: 0 Time: 114ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s 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, 25 PlacesBefore, 18 PlacesAfterwards, 20 TransitionsBefore, 13 TransitionsAfterwards, 96 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 63 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 63, positive: 63, positive conditional: 0, positive unconditional: 63, 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: 50, positive: 50, positive conditional: 0, positive unconditional: 50, 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: 50, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 63, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 50, unknown conditional: 0, unknown unconditional: 50] , 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 14:47:46,723 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 14:47:46,931 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 14:47:47,134 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...