/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-buchi-pn-semanticLbe.epf -i ../../../trunk/examples/concurrent/bpl/concurrent_increment.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-638c691-m [2022-09-29 15:02:36,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 15:02:36,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 15:02:36,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-29 15:02:36,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 15:02:36,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 15:02:36,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 15:02:36,638 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-buchi-pn-semanticLbe.epf [2022-09-29 15:02:36,669 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 15:02:36,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 15:02:36,669 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 15:02:36,670 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 15:02:36,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 15:02:36,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 15:02:36,671 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 15:02:36,671 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 15:02:36,671 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 15:02:36,672 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 15:02:36,672 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 15:02:36,673 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 15:02:36,673 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 15:02:36,673 INFO L138 SettingsManager]: * Automaton type for concurrent programs=BUCHI_PETRI_NET [2022-09-29 15:02:36,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 15:02:36,673 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 15:02:36,673 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 15:02:36,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 15:02:36,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 15:02:36,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 15:02:36,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 15:02:36,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 15:02:36,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 15:02:36,674 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 15:02:36,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 15:02:36,674 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 15:02:36,674 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 15:02:36,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 15:02:36,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 15:02:36,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 15:02:36,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 15:02:36,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 15:02:36,676 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 15:02:36,676 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 15:02:36,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 15:02:36,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 15:02:36,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 15:02:36,941 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 15:02:36,943 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 15:02:36,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/concurrent_increment.bpl [2022-09-29 15:02:36,944 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/concurrent_increment.bpl' [2022-09-29 15:02:36,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 15:02:36,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 15:02:36,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 15:02:36,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 15:02:36,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 15:02:36,978 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 03:02:36" (1/1) ... [2022-09-29 15:02:36,989 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 03:02:36" (1/1) ... [2022-09-29 15:02:36,994 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-29 15:02:36,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 15:02:36,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 15:02:36,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 15:02:36,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 15:02:37,004 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 03:02:36" (1/1) ... [2022-09-29 15:02:37,004 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 03:02:36" (1/1) ... [2022-09-29 15:02:37,005 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 03:02:36" (1/1) ... [2022-09-29 15:02:37,005 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 03:02:36" (1/1) ... [2022-09-29 15:02:37,007 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 03:02:36" (1/1) ... [2022-09-29 15:02:37,009 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 03:02:36" (1/1) ... [2022-09-29 15:02:37,010 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 03:02:36" (1/1) ... [2022-09-29 15:02:37,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 15:02:37,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 15:02:37,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 15:02:37,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 15:02:37,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:02:36" (1/1) ... [2022-09-29 15:02:37,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:02:37,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:02:37,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:02:37,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-09-29 15:02:37,087 INFO L124 BoogieDeclarations]: Specification and implementation of procedure dec given in one single declaration [2022-09-29 15:02:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2022-09-29 15:02:37,088 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2022-09-29 15:02:37,088 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 15:02:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 15:02:37,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 15:02:37,088 INFO L124 BoogieDeclarations]: Specification and implementation of procedure inc given in one single declaration [2022-09-29 15:02:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2022-09-29 15:02:37,088 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2022-09-29 15:02:37,089 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 15:02:37,128 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 15:02:37,129 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 15:02:37,226 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 15:02:37,234 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 15:02:37,234 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 15:02:37,237 INFO L202 PluginConnector]: Adding new model concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:02:37 BoogieIcfgContainer [2022-09-29 15:02:37,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 15:02:37,239 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 15:02:37,242 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 15:02:37,245 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 15:02:37,246 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:02:37,246 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:02:36" (1/2) ... [2022-09-29 15:02:37,249 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5333e71 and model type concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 03:02:37, skipping insertion in model container [2022-09-29 15:02:37,249 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:02:37,249 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 03:02:37" (2/2) ... [2022-09-29 15:02:37,253 INFO L322 chiAutomizerObserver]: Analyzing ICFG concurrent_increment.bpl [2022-09-29 15:02:37,338 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 15:02:37,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 24 transitions, 64 flow [2022-09-29 15:02:37,407 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:02:37,408 INFO L123 PetriNetUnfolderBase]: 2/20 cut-off events. [2022-09-29 15:02:37,408 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 15:02:37,410 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 15:02:37,411 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 24 transitions, 64 flow [2022-09-29 15:02:37,414 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 20 transitions, 52 flow [2022-09-29 15:02:37,417 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 15:02:37,429 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 20 transitions, 52 flow [2022-09-29 15:02:37,431 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 20 transitions, 52 flow [2022-09-29 15:02:37,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 20 transitions, 52 flow [2022-09-29 15:02:37,437 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:02:37,437 INFO L123 PetriNetUnfolderBase]: 2/20 cut-off events. [2022-09-29 15:02:37,437 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 15:02:37,438 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 15:02:37,438 INFO L116 LiptonReduction]: Number of co-enabled transitions 96 [2022-09-29 15:02:37,633 INFO L131 LiptonReduction]: Checked pairs total: 63 [2022-09-29 15:02:37,633 INFO L133 LiptonReduction]: Total number of compositions: 7 [2022-09-29 15:02:37,642 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 15:02:37,643 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 15:02:37,643 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 15:02:37,643 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 15:02:37,643 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 15:02:37,643 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 15:02:37,643 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 15:02:37,643 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2022-09-29 15:02:37,644 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 18 places, 13 transitions, 38 flow [2022-09-29 15:02:37,647 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 18 places, 13 transitions, 38 flow [2022-09-29 15:02:37,648 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:37,648 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:02:37,648 INFO L123 PetriNetUnfolderBase]: 0/3 cut-off events. [2022-09-29 15:02:37,649 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:02:37,649 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:02:37,651 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 15:02:37,651 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 18 places, 13 transitions, 38 flow [2022-09-29 15:02:37,652 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 18 places, 13 transitions, 38 flow [2022-09-29 15:02:37,653 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:37,653 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:02:37,653 INFO L123 PetriNetUnfolderBase]: 0/3 cut-off events. [2022-09-29 15:02:37,653 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:02:37,653 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:02:37,660 INFO L733 eck$LassoCheckResult]: Stem: 31#[ULTIMATE.startENTRY]true [29] ULTIMATE.startENTRY-->L20: Formula: (= v_x_4 0) InVars {} OutVars{x=v_x_4} AuxVars[] AssignedVars[x] 33#[L20]true [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#[incENTRY, L20-1]true [54] incENTRY-->L33-1: Formula: (= v_incThread1of1ForFork0_i_1 0) InVars {} OutVars{incThread1of1ForFork0_i=v_incThread1of1ForFork0_i_1} AuxVars[] AssignedVars[incThread1of1ForFork0_i] 37#[L33-1, L20-1]true [2022-09-29 15:02:37,660 INFO L735 eck$LassoCheckResult]: Loop: 37#[L33-1, L20-1]true [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] 37#[L33-1, L20-1]true [2022-09-29 15:02:37,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:02:37,664 INFO L85 PathProgramCache]: Analyzing trace with hash 59636, now seen corresponding path program 1 times [2022-09-29 15:02:37,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:02:37,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594280498] [2022-09-29 15:02:37,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:02:37,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:02:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:02:37,720 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:02:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:02:37,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:02:37,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:02:37,736 INFO L85 PathProgramCache]: Analyzing trace with hash 105, now seen corresponding path program 1 times [2022-09-29 15:02:37,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:02:37,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18387559] [2022-09-29 15:02:37,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:02:37,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:02:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:02:37,745 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:02:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:02:37,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:02:37,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:02:37,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1848790, now seen corresponding path program 1 times [2022-09-29 15:02:37,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:02:37,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391102094] [2022-09-29 15:02:37,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:02:37,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:02:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:02:37,759 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:02:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:02:37,765 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:02:37,828 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:02:37,829 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:02:37,829 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:02:37,829 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:02:37,829 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-09-29 15:02:37,829 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:02:37,829 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:02:37,829 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:02:37,830 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_increment.bpl_BEv2_Iteration1_Loop [2022-09-29 15:02:37,830 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:02:37,830 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:02:37,843 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:02:37,861 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:02:37,892 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:02:37,893 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-09-29 15:02:37,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:02:37,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:02:37,899 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:02:37,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 15:02:37,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:02:37,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-09-29 15:02:37,947 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 15:02:37,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:02:37,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:02:37,948 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:02:37,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-09-29 15:02:37,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 15:02:37,959 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:02:38,083 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-09-29 15:02:38,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-09-29 15:02:38,087 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:02:38,088 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:02:38,088 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:02:38,088 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:02:38,088 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:02:38,088 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:02:38,089 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:02:38,089 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:02:38,089 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_increment.bpl_BEv2_Iteration1_Loop [2022-09-29 15:02:38,091 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:02:38,091 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:02:38,093 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 15:02:38,100 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:02:38,131 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:02:38,134 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:02:38,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:02:38,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:02:38,137 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 15:02:38,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-09-29 15:02:38,140 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-09-29 15:02:38,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:02:38,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:02:38,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:02:38,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:02:38,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:02:38,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:02:38,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:02:38,159 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:02:38,200 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-09-29 15:02:38,200 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-09-29 15:02:38,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:02:38,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:02:38,216 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 15:02:38,218 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 15:02:38,223 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:02:38,223 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-09-29 15:02:38,224 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:02:38,224 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(incThread1of1ForFork0_i, n) = -1*incThread1of1ForFork0_i + 1*n Supporting invariants [] [2022-09-29 15:02:38,249 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 15:02:38,252 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:02:38,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:02:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:02:38,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:02:38,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:02:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:02:38,306 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:02:38,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:02:38,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 15:02:38,334 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 15:02:38,335 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. 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 15:02:38,441 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. 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 6 states and 268 transitions.4 powerset states2 rank states. The highest rank that occured is 1 [2022-09-29 15:02:38,442 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 15:02:38,445 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 15:02:38,447 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 15:02:38,451 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 15:02:38,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2022-09-29 15:02:38,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 89 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 15:02:38,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:02:38,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 89 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 15:02:38,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:02:38,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 89 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 15:02:38,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:02:38,457 INFO L428 stractBuchiCegarLoop]: Abstraction has has 30 places, 212 transitions, 1046 flow [2022-09-29 15:02:38,457 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 15:02:38,457 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 30 places, 212 transitions, 1046 flow [2022-09-29 15:02:38,460 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 30 places, 212 transitions, 1046 flow [2022-09-29 15:02:38,461 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:38,463 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 30 places, 212 transitions, 1046 flow [2022-09-29 15:02:38,467 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:38,467 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:02:38,467 INFO L123 PetriNetUnfolderBase]: 3/13 cut-off events. [2022-09-29 15:02:38,467 INFO L124 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2022-09-29 15:02:38,467 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:02:38,468 INFO L733 eck$LassoCheckResult]: Stem: 31#[ULTIMATE.startENTRY]true [29] ULTIMATE.startENTRY-->L20: Formula: (= v_x_4 0) InVars {} OutVars{x=v_x_4} AuxVars[] AssignedVars[x] 33#[L20]true [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#[incENTRY, L20-1]true [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] 88#[incENTRY, L21, decENTRY]true [48] decENTRY-->L44-1: Formula: (= 0 v_decThread1of1ForFork1_i_1) InVars {} OutVars{decThread1of1ForFork1_i=v_decThread1of1ForFork1_i_1} AuxVars[] AssignedVars[decThread1of1ForFork1_i] 90#[incENTRY, L44-1, L21]true [2022-09-29 15:02:38,468 INFO L735 eck$LassoCheckResult]: Loop: 90#[incENTRY, L44-1, L21]true [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] 90#[incENTRY, L44-1, L21]true [2022-09-29 15:02:38,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:02:38,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1849105, now seen corresponding path program 1 times [2022-09-29 15:02:38,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:02:38,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255365306] [2022-09-29 15:02:38,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:02:38,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:02:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:02:38,474 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:02:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:02:38,477 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:02:38,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:02:38,478 INFO L85 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 1 times [2022-09-29 15:02:38,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:02:38,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502430118] [2022-09-29 15:02:38,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:02:38,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:02:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:02:38,486 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:02:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:02:38,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:02:38,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:02:38,490 INFO L85 PathProgramCache]: Analyzing trace with hash 57322328, now seen corresponding path program 1 times [2022-09-29 15:02:38,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:02:38,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73188405] [2022-09-29 15:02:38,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:02:38,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:02:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:02:38,496 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:02:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:02:38,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:02:38,519 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:02:38,519 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:02:38,519 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:02:38,519 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:02:38,520 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-09-29 15:02:38,520 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:02:38,520 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:02:38,520 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:02:38,520 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_increment.bpl_BEv2_Iteration2_Loop [2022-09-29 15:02:38,520 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:02:38,520 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:02:38,521 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:02:38,526 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:02:38,547 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:02:38,548 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-09-29 15:02:38,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:02:38,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:02:38,549 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 15:02:38,550 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 15:02:38,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 15:02:38,552 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:02:38,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-09-29 15:02:38,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:02:38,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:02:38,580 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 15:02:38,581 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 15:02:38,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 15:02:38,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:02:38,702 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-09-29 15:02:38,705 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 15:02:38,705 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:02:38,705 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:02:38,705 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:02:38,706 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:02:38,706 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:02:38,706 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:02:38,706 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:02:38,706 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:02:38,706 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_increment.bpl_BEv2_Iteration2_Loop [2022-09-29 15:02:38,706 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:02:38,706 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:02:38,707 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:02:38,721 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:02:38,749 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:02:38,749 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:02:38,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:02:38,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:02:38,751 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 15:02:38,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-09-29 15:02:38,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:02:38,762 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:02:38,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:02:38,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:02:38,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:02:38,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:02:38,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:02:38,766 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 15:02:38,774 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:02:38,779 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-09-29 15:02:38,780 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-09-29 15:02:38,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:02:38,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:02:38,820 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 15:02:38,822 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 15:02:38,858 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:02:38,858 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-09-29 15:02:38,858 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:02:38,859 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, decThread1of1ForFork1_i) = 1*n - 1*decThread1of1ForFork1_i Supporting invariants [] [2022-09-29 15:02:38,874 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 15:02:38,875 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:02:38,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:02:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:02:38,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:02:38,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:02:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:02:38,926 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:02:38,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:02:38,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 15:02:38,928 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 15:02:38,929 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. 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 15:02:39,015 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. 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 6 states and 268 transitions.4 powerset states2 rank states. The highest rank that occured is 1 [2022-09-29 15:02:39,016 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 15:02:39,062 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 15:02:39,063 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 15:02:39,064 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 15:02:39,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2022-09-29 15:02:39,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 89 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 15:02:39,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:02:39,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 89 transitions. Stem has 5 letters. Loop has 1 letters. [2022-09-29 15:02:39,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:02:39,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 89 transitions. Stem has 4 letters. Loop has 2 letters. [2022-09-29 15:02:39,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:02:39,066 INFO L428 stractBuchiCegarLoop]: Abstraction has has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:02:39,066 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 15:02:39,066 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:02:39,090 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:02:39,102 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:39,105 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:02:39,112 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:39,127 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:02:39,139 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:39,143 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:02:39,153 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:39,155 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:02:39,162 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:39,171 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:02:39,179 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:39,185 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:02:39,192 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:39,194 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:02:39,200 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:39,209 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:02:39,218 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:39,231 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:02:39,238 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:39,239 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:02:39,246 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:39,247 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 15:02:39,260 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:02:39,278 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:02:39,278 INFO L123 PetriNetUnfolderBase]: 193/321 cut-off events. [2022-09-29 15:02:39,278 INFO L124 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2022-09-29 15:02:39,282 INFO L47 CFPrefixIsEmptyBuchi]: Starting emptiness check. [2022-09-29 15:02:39,282 INFO L62 CFPrefixIsEmptyBuchi]: Starting cutoff event analysis. [2022-09-29 15:02:39,282 INFO L72 CFPrefixIsEmptyBuchi]: Ended cutoff event analysis. [2022-09-29 15:02:39,283 INFO L76 CFPrefixIsEmptyBuchi]: Type 1 Lasso search started. [2022-09-29 15:02:39,283 INFO L87 CFPrefixIsEmptyBuchi]: Type 1 Lasso search ended. [2022-09-29 15:02:39,283 INFO L107 CFPrefixIsEmptyBuchi]: Type 3 Lasso search started. [2022-09-29 15:02:39,298 INFO L206 CFPrefixIsEmptyBuchi]: Type 3 Lasso search ended. [2022-09-29 15:02:39,298 INFO L50 CFPrefixIsEmptyBuchi]: Finished emptiness check, language is empty [2022-09-29 15:02:39,299 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is empty [2022-09-29 15:02:39,305 INFO L202 PluginConnector]: Adding new model concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 03:02:39 BoogieIcfgContainer [2022-09-29 15:02:39,305 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 15:02:39,310 INFO L158 Benchmark]: Toolchain (without parser) took 2343.42ms. Allocated memory was 184.5MB in the beginning and 233.8MB in the end (delta: 49.3MB). Free memory was 139.2MB in the beginning and 138.8MB in the end (delta: 405.5kB). Peak memory consumption was 49.1MB. Max. memory is 8.0GB. [2022-09-29 15:02:39,311 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 140.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:02:39,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.98ms. Allocated memory is still 184.5MB. Free memory was 139.2MB in the beginning and 137.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-29 15:02:39,312 INFO L158 Benchmark]: Boogie Preprocessor took 14.05ms. Allocated memory is still 184.5MB. Free memory was 137.6MB in the beginning and 136.7MB in the end (delta: 911.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 15:02:39,313 INFO L158 Benchmark]: RCFGBuilder took 226.75ms. Allocated memory is still 184.5MB. Free memory was 136.7MB in the beginning and 128.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-29 15:02:39,315 INFO L158 Benchmark]: BuchiAutomizer took 2066.16ms. Allocated memory was 184.5MB in the beginning and 233.8MB in the end (delta: 49.3MB). Free memory was 128.1MB in the beginning and 138.8MB in the end (delta: -10.7MB). Peak memory consumption was 37.5MB. Max. memory is 8.0GB. [2022-09-29 15:02:39,318 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 0.14ms. Allocated memory is still 184.5MB. Free memory is still 140.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.98ms. Allocated memory is still 184.5MB. Free memory was 139.2MB in the beginning and 137.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.05ms. Allocated memory is still 184.5MB. Free memory was 137.6MB in the beginning and 136.7MB in the end (delta: 911.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 226.75ms. Allocated memory is still 184.5MB. Free memory was 136.7MB in the beginning and 128.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2066.16ms. Allocated memory was 184.5MB in the beginning and 233.8MB in the end (delta: 49.3MB). Free memory was 128.1MB in the beginning and 138.8MB in the end (delta: -10.7MB). Peak memory consumption was 37.5MB. 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 1.9s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 1. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. 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, 114 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 98 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 70 mSDtfsCounter, 90 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: 89ms 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: 0.2s - 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: 10, positive: 10, positive conditional: 0, positive unconditional: 10, 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 15:02:39,339 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 15:02:39,539 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 15:02:39,741 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...