/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/NonAtomicIncrement_2Threads_Loop.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-ed1a3e5-m [2022-09-29 14:47:53,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 14:47:53,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 14:47:53,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 14:47:53,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 14:47:53,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 14:47:53,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 14:47:53,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 14:47:53,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 14:47:53,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 14:47:53,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 14:47:53,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 14:47:53,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 14:47:53,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 14:47:53,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 14:47:53,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 14:47:53,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 14:47:53,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 14:47:53,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 14:47:53,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 14:47:53,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 14:47:53,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 14:47:53,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 14:47:53,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 14:47:53,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 14:47:53,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 14:47:53,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 14:47:53,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 14:47:53,279 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 14:47:53,310 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 14:47:53,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 14:47:53,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 14:47:53,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 14:47:53,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 14:47:53,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 14:47:53,312 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 14:47:53,313 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 14:47:53,313 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 14:47:53,313 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 14:47:53,314 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 14:47:53,314 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 14:47:53,314 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 14:47:53,314 INFO L138 SettingsManager]: * Automaton type for concurrent programs=BUCHI_PETRI_NET [2022-09-29 14:47:53,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 14:47:53,314 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 14:47:53,314 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 14:47:53,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 14:47:53,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 14:47:53,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 14:47:53,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 14:47:53,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 14:47:53,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 14:47:53,316 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 14:47:53,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 14:47:53,316 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 14:47:53,316 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 14:47:53,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 14:47:53,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 14:47:53,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 14:47:53,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 14:47:53,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 14:47:53,318 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 14:47:53,318 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 14:47:53,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 14:47:53,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 14:47:53,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 14:47:53,595 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 14:47:53,597 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 14:47:53,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/NonAtomicIncrement_2Threads_Loop.bpl [2022-09-29 14:47:53,598 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/NonAtomicIncrement_2Threads_Loop.bpl' [2022-09-29 14:47:53,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 14:47:53,623 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 14:47:53,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 14:47:53,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 14:47:53,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 14:47:53,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,650 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-29 14:47:53,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 14:47:53,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 14:47:53,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 14:47:53,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 14:47:53,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 14:47:53,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 14:47:53,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 14:47:53,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 14:47:53,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:53,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:53,700 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 14:47:53,707 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 14:47:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure fistIncrementProcess [2022-09-29 14:47:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure fistIncrementProcess [2022-09-29 14:47:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 14:47:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 14:47:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure secondIncrementProcess [2022-09-29 14:47:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure secondIncrementProcess [2022-09-29 14:47:53,731 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 14:47:53,766 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 14:47:53,768 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 14:47:53,862 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 14:47:53,872 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 14:47:53,872 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 14:47:53,875 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:47:53 BoogieIcfgContainer [2022-09-29 14:47:53,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 14:47:53,877 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 14:47:53,877 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 14:47:53,880 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 14:47:53,881 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:47:53,882 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/2) ... [2022-09-29 14:47:53,884 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6283c5cb and model type NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 02:47:53, skipping insertion in model container [2022-09-29 14:47:53,884 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:47:53,884 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:47:53" (2/2) ... [2022-09-29 14:47:53,887 INFO L322 chiAutomizerObserver]: Analyzing ICFG NonAtomicIncrement_2Threads_Loop.bpl [2022-09-29 14:47:53,982 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-09-29 14:47:54,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 28 transitions, 78 flow [2022-09-29 14:47:54,041 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:47:54,042 INFO L123 PetriNetUnfolderBase]: 3/24 cut-off events. [2022-09-29 14:47:54,042 INFO L124 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2022-09-29 14:47:54,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 24 events. 3/24 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 19. Up to 3 conditions per place. [2022-09-29 14:47:54,045 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 28 transitions, 78 flow [2022-09-29 14:47:54,050 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 24 transitions, 66 flow [2022-09-29 14:47:54,053 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 14:47:54,096 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 24 transitions, 66 flow [2022-09-29 14:47:54,098 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 24 transitions, 66 flow [2022-09-29 14:47:54,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 24 transitions, 66 flow [2022-09-29 14:47:54,112 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:47:54,112 INFO L123 PetriNetUnfolderBase]: 3/24 cut-off events. [2022-09-29 14:47:54,112 INFO L124 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2022-09-29 14:47:54,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 24 events. 3/24 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 19. Up to 3 conditions per place. [2022-09-29 14:47:54,113 INFO L116 LiptonReduction]: Number of co-enabled transitions 140 [2022-09-29 14:47:54,327 INFO L131 LiptonReduction]: Checked pairs total: 148 [2022-09-29 14:47:54,327 INFO L133 LiptonReduction]: Total number of compositions: 7 [2022-09-29 14:47:54,343 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 14:47:54,343 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 14:47:54,343 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 14:47:54,343 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 14:47:54,343 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 14:47:54,344 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 14:47:54,344 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 14:47:54,344 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2022-09-29 14:47:54,344 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 20 places, 17 transitions, 52 flow [2022-09-29 14:47:54,348 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 20 places, 17 transitions, 52 flow [2022-09-29 14:47:54,350 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:54,351 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 14:47:54,351 INFO L123 PetriNetUnfolderBase]: 0/5 cut-off events. [2022-09-29 14:47:54,351 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 14:47:54,351 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 14:47:54,354 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 14:47:54,354 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 20 places, 17 transitions, 52 flow [2022-09-29 14:47:54,356 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 20 places, 17 transitions, 52 flow [2022-09-29 14:47:54,357 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:54,357 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 14:47:54,357 INFO L123 PetriNetUnfolderBase]: 0/5 cut-off events. [2022-09-29 14:47:54,357 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 14:47:54,357 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 14:47:54,363 INFO L733 eck$LassoCheckResult]: Stem: 33#[ULTIMATE.startENTRY]true [31] ULTIMATE.startENTRY-->L18: Formula: (= v_x_5 0) InVars {} OutVars{x=v_x_5} AuxVars[] AssignedVars[x] 35#[L18]true [68] L18-->fistIncrementProcessENTRY: Formula: (= v_fistIncrementProcessThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{fistIncrementProcessThread1of1ForFork0_localx=v_fistIncrementProcessThread1of1ForFork0_localx_6, fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_12, fistIncrementProcessThread1of1ForFork0_thidvar0=v_fistIncrementProcessThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[fistIncrementProcessThread1of1ForFork0_localx, fistIncrementProcessThread1of1ForFork0_i, fistIncrementProcessThread1of1ForFork0_thidvar0] 37#[L18-1, fistIncrementProcessENTRY]true [52] fistIncrementProcessENTRY-->L33-1: Formula: (= 0 v_fistIncrementProcessThread1of1ForFork0_i_1) InVars {} OutVars{fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_1} AuxVars[] AssignedVars[fistIncrementProcessThread1of1ForFork0_i] 39#[L33-1, L18-1]true [2022-09-29 14:47:54,363 INFO L735 eck$LassoCheckResult]: Loop: 39#[L33-1, L18-1]true [79] L33-1-->L35: Formula: (and (= v_fistIncrementProcessThread1of1ForFork0_localx_11 v_x_19) (< v_fistIncrementProcessThread1of1ForFork0_i_13 3)) InVars {fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_13, x=v_x_19} OutVars{fistIncrementProcessThread1of1ForFork0_localx=v_fistIncrementProcessThread1of1ForFork0_localx_11, fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_13, x=v_x_19} AuxVars[] AssignedVars[fistIncrementProcessThread1of1ForFork0_localx] 42#[L18-1, L35]true [82] L35-->L33-1: Formula: (and (= v_fistIncrementProcessThread1of1ForFork0_i_17 (+ v_fistIncrementProcessThread1of1ForFork0_i_18 1)) (= v_x_30 (+ v_fistIncrementProcessThread1of1ForFork0_localx_17 1))) InVars {fistIncrementProcessThread1of1ForFork0_localx=v_fistIncrementProcessThread1of1ForFork0_localx_17, fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_18} OutVars{fistIncrementProcessThread1of1ForFork0_localx=v_fistIncrementProcessThread1of1ForFork0_localx_17, fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_17, x=v_x_30} AuxVars[] AssignedVars[fistIncrementProcessThread1of1ForFork0_i, x] 39#[L33-1, L18-1]true [2022-09-29 14:47:54,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:54,369 INFO L85 PathProgramCache]: Analyzing trace with hash 61742, now seen corresponding path program 1 times [2022-09-29 14:47:54,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:54,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875964298] [2022-09-29 14:47:54,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:54,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,433 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,448 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:54,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:54,451 INFO L85 PathProgramCache]: Analyzing trace with hash 3492, now seen corresponding path program 1 times [2022-09-29 14:47:54,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:54,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951522883] [2022-09-29 14:47:54,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:54,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,462 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:54,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:54,469 INFO L85 PathProgramCache]: Analyzing trace with hash 59336593, now seen corresponding path program 1 times [2022-09-29 14:47:54,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:54,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961875954] [2022-09-29 14:47:54,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:54,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,483 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:54,542 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:54,542 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:54,543 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:54,543 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:54,543 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-09-29 14:47:54,543 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,543 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:54,543 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:54,543 INFO L133 ssoRankerPreferences]: Filename of dumped script: NonAtomicIncrement_2Threads_Loop.bpl_BEv2_Iteration1_Loop [2022-09-29 14:47:54,543 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:54,543 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:54,555 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 14:47:54,566 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 14:47:54,602 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:54,603 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-09-29 14:47:54,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:54,616 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 14:47:54,618 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 14:47:54,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 14:47:54,621 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:47:54,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-09-29 14:47:54,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:54,669 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 14:47:54,670 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 14:47:54,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 14:47:54,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:47:54,700 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-09-29 14:47:54,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-09-29 14:47:54,704 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:54,704 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:54,704 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:54,704 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:54,704 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:47:54,704 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,704 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:54,704 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:54,705 INFO L133 ssoRankerPreferences]: Filename of dumped script: NonAtomicIncrement_2Threads_Loop.bpl_BEv2_Iteration1_Loop [2022-09-29 14:47:54,705 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:54,705 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:54,706 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 14:47:54,719 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 14:47:54,760 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:54,764 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:47:54,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:54,771 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 14:47:54,773 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 14:47:54,774 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 14:47:54,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:54,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:47:54,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:54,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:54,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:54,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:47:54,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:47:54,799 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:47:54,815 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 14:47:54,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:54,817 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 14:47:54,818 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 14:47:54,820 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 14:47:54,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:54,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:47:54,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:54,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:54,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:54,827 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:47:54,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:47:54,841 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:47:54,862 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-09-29 14:47:54,863 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-09-29 14:47:54,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:54,868 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 14:47:54,869 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 14:47:54,870 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:47:54,870 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-09-29 14:47:54,870 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:47:54,870 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fistIncrementProcessThread1of1ForFork0_i) = -2*fistIncrementProcessThread1of1ForFork0_i + 5 Supporting invariants [] [2022-09-29 14:47:54,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-09-29 14:47:54,893 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:47:54,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:54,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:47:54,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:54,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:47:54,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:54,997 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 14:47:55,040 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-09-29 14:47:55,042 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:47:55,168 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 435 transitions.6 powerset states3 rank states. The highest rank that occured is 1 [2022-09-29 14:47:55,169 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 14:47:55,176 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 14:47:55,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-09-29 14:47:55,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:47:55,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 169 transitions. [2022-09-29 14:47:55,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 169 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 14:47:55,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 169 transitions. Stem has 5 letters. Loop has 2 letters. [2022-09-29 14:47:55,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 169 transitions. Stem has 3 letters. Loop has 4 letters. [2022-09-29 14:47:55,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,187 INFO L428 stractBuchiCegarLoop]: Abstraction has has 38 places, 410 transitions, 2078 flow [2022-09-29 14:47:55,187 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 14:47:55,187 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 38 places, 410 transitions, 2078 flow [2022-09-29 14:47:55,202 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 38 places, 410 transitions, 2078 flow [2022-09-29 14:47:55,204 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,212 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 38 places, 410 transitions, 2078 flow [2022-09-29 14:47:55,219 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,219 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 14:47:55,220 INFO L123 PetriNetUnfolderBase]: 17/37 cut-off events. [2022-09-29 14:47:55,220 INFO L124 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2022-09-29 14:47:55,220 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 14:47:55,221 INFO L733 eck$LassoCheckResult]: Stem: 33#[ULTIMATE.startENTRY]true [31] ULTIMATE.startENTRY-->L18: Formula: (= v_x_5 0) InVars {} OutVars{x=v_x_5} AuxVars[] AssignedVars[x] 35#[L18]true [68] L18-->fistIncrementProcessENTRY: Formula: (= v_fistIncrementProcessThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{fistIncrementProcessThread1of1ForFork0_localx=v_fistIncrementProcessThread1of1ForFork0_localx_6, fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_12, fistIncrementProcessThread1of1ForFork0_thidvar0=v_fistIncrementProcessThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[fistIncrementProcessThread1of1ForFork0_localx, fistIncrementProcessThread1of1ForFork0_i, fistIncrementProcessThread1of1ForFork0_thidvar0] 37#[L18-1, fistIncrementProcessENTRY]true [71] L18-1-->secondIncrementProcessENTRY: Formula: (= v_secondIncrementProcessThread1of1ForFork1_thidvar0_2 2) InVars {} OutVars{secondIncrementProcessThread1of1ForFork1_localx=v_secondIncrementProcessThread1of1ForFork1_localx_6, secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_12, secondIncrementProcessThread1of1ForFork1_thidvar0=v_secondIncrementProcessThread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[secondIncrementProcessThread1of1ForFork1_localx, secondIncrementProcessThread1of1ForFork1_i, secondIncrementProcessThread1of1ForFork1_thidvar0] 104#[fistIncrementProcessENTRY, secondIncrementProcessENTRY, L19]true [59] secondIncrementProcessENTRY-->L49-1: Formula: (= v_secondIncrementProcessThread1of1ForFork1_i_1 0) InVars {} OutVars{secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_1} AuxVars[] AssignedVars[secondIncrementProcessThread1of1ForFork1_i] 106#[L49-1, fistIncrementProcessENTRY, L19]true [2022-09-29 14:47:55,222 INFO L735 eck$LassoCheckResult]: Loop: 106#[L49-1, fistIncrementProcessENTRY, L19]true [78] L49-1-->L51: Formula: (and (< v_secondIncrementProcessThread1of1ForFork1_i_15 3) (= v_x_17 v_secondIncrementProcessThread1of1ForFork1_localx_11)) InVars {x=v_x_17, secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_15} OutVars{secondIncrementProcessThread1of1ForFork1_localx=v_secondIncrementProcessThread1of1ForFork1_localx_11, x=v_x_17, secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_15} AuxVars[] AssignedVars[secondIncrementProcessThread1of1ForFork1_localx] 109#[fistIncrementProcessENTRY, L19, L51]true [81] L51-->L49-1: Formula: (and (= v_secondIncrementProcessThread1of1ForFork1_i_17 (+ v_secondIncrementProcessThread1of1ForFork1_i_18 1)) (= v_x_24 (+ v_secondIncrementProcessThread1of1ForFork1_localx_15 1))) InVars {secondIncrementProcessThread1of1ForFork1_localx=v_secondIncrementProcessThread1of1ForFork1_localx_15, secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_18} OutVars{secondIncrementProcessThread1of1ForFork1_localx=v_secondIncrementProcessThread1of1ForFork1_localx_15, x=v_x_24, secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_17} AuxVars[] AssignedVars[x, secondIncrementProcessThread1of1ForFork1_i] 106#[L49-1, fistIncrementProcessENTRY, L19]true [2022-09-29 14:47:55,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:55,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1914650, now seen corresponding path program 1 times [2022-09-29 14:47:55,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:55,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922218003] [2022-09-29 14:47:55,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:55,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,229 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:55,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:55,233 INFO L85 PathProgramCache]: Analyzing trace with hash 3460, now seen corresponding path program 1 times [2022-09-29 14:47:55,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:55,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520269844] [2022-09-29 14:47:55,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:55,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,238 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:55,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:55,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1839981149, now seen corresponding path program 1 times [2022-09-29 14:47:55,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:55,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113725990] [2022-09-29 14:47:55,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:55,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,250 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:55,304 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:55,305 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:55,305 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:55,305 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:55,305 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-09-29 14:47:55,305 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,305 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:55,305 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:55,305 INFO L133 ssoRankerPreferences]: Filename of dumped script: NonAtomicIncrement_2Threads_Loop.bpl_BEv2_Iteration2_Loop [2022-09-29 14:47:55,305 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:55,305 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:55,306 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 14:47:55,314 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 14:47:55,344 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:55,344 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-09-29 14:47:55,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:55,348 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 14:47:55,358 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 14:47:55,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 14:47:55,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:47:55,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-09-29 14:47:55,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:55,412 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 14:47:55,420 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 14:47:55,420 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 14:47:55,420 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:47:55,531 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-09-29 14:47:55,531 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x=-1, secondIncrementProcessThread1of1ForFork1_localx=-2} Honda state: {x=-1, secondIncrementProcessThread1of1ForFork1_localx=-2} Generalized eigenvectors: [{x=-1, secondIncrementProcessThread1of1ForFork1_localx=-1}, {x=5, secondIncrementProcessThread1of1ForFork1_localx=5}, {x=-3, secondIncrementProcessThread1of1ForFork1_localx=-3}] Lambdas: [6, 1, 1] Nus: [1, 0] [2022-09-29 14:47:55,548 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 14:47:55,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:55,552 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 14:47:55,556 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 14:47:55,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 14:47:55,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:47:55,577 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 14:47:55,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:55,578 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 14:47:55,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-09-29 14:47:55,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 14:47:55,627 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:47:55,675 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-09-29 14:47:55,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-09-29 14:47:55,683 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:55,683 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:55,683 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:55,683 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:55,683 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:47:55,683 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,684 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:55,684 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:55,684 INFO L133 ssoRankerPreferences]: Filename of dumped script: NonAtomicIncrement_2Threads_Loop.bpl_BEv2_Iteration2_Loop [2022-09-29 14:47:55,684 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:55,684 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:55,685 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 14:47:55,691 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 14:47:55,726 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:55,726 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:47:55,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:55,728 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 14:47:55,742 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 14:47:55,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:55,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:47:55,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:55,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:55,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:55,751 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:47:55,751 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:47:55,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-09-29 14:47:55,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:47:55,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-09-29 14:47:55,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:55,776 INFO L229 MonitoredProcess]: Starting monitored process 12 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 14:47:55,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-09-29 14:47:55,778 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 14:47:55,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:55,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:47:55,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:55,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:55,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:55,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:47:55,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:47:55,786 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:47:55,789 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-09-29 14:47:55,789 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-09-29 14:47:55,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:55,820 INFO L229 MonitoredProcess]: Starting monitored process 13 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 14:47:55,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-09-29 14:47:55,821 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:47:55,821 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-09-29 14:47:55,821 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:47:55,822 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(secondIncrementProcessThread1of1ForFork1_i) = -2*secondIncrementProcessThread1of1ForFork1_i + 5 Supporting invariants [] [2022-09-29 14:47:55,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-09-29 14:47:55,837 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:47:55,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:55,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:47:55,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:55,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:47:55,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:55,891 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 14:47:55,893 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-09-29 14:47:55,893 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:47:56,019 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 435 transitions.6 powerset states3 rank states. The highest rank that occured is 1 [2022-09-29 14:47:56,020 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 14:47:56,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-09-29 14:47:56,114 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 14:47:56,123 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 14:47:56,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-09-29 14:47:56,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:47:56,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 169 transitions. [2022-09-29 14:47:56,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 169 transitions. Stem has 4 letters. Loop has 2 letters. [2022-09-29 14:47:56,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:56,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 169 transitions. Stem has 6 letters. Loop has 2 letters. [2022-09-29 14:47:56,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:56,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 169 transitions. Stem has 4 letters. Loop has 4 letters. [2022-09-29 14:47:56,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:56,126 INFO L428 stractBuchiCegarLoop]: Abstraction has has 56 places, 9828 transitions, 69576 flow [2022-09-29 14:47:56,126 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 14:47:56,126 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 56 places, 9828 transitions, 69576 flow [2022-09-29 14:47:56,199 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 56 places, 9828 transitions, 69576 flow [2022-09-29 14:47:56,229 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:56,237 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 56 places, 9828 transitions, 69576 flow [2022-09-29 14:47:56,286 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:56,294 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 56 places, 9828 transitions, 69576 flow [2022-09-29 14:47:56,325 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:56,337 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 56 places, 9828 transitions, 69576 flow [2022-09-29 14:47:56,365 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:56,396 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 56 places, 9828 transitions, 69576 flow [2022-09-29 14:47:56,416 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:56,446 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 56 places, 9828 transitions, 69576 flow [2022-09-29 14:47:56,467 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:56,479 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 56 places, 9828 transitions, 69576 flow [2022-09-29 14:47:56,499 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:56,549 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:47:56,550 INFO L123 PetriNetUnfolderBase]: 427/655 cut-off events. [2022-09-29 14:47:56,550 INFO L124 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2022-09-29 14:47:56,551 INFO L47 CFPrefixIsEmptyBuchi]: Starting emptiness check. [2022-09-29 14:47:56,551 INFO L62 CFPrefixIsEmptyBuchi]: Starting cutoff event analysis. [2022-09-29 14:47:56,552 INFO L72 CFPrefixIsEmptyBuchi]: Ended cutoff event analysis. [2022-09-29 14:47:56,552 INFO L76 CFPrefixIsEmptyBuchi]: Type 1 Lasso search started. [2022-09-29 14:47:56,552 INFO L87 CFPrefixIsEmptyBuchi]: Type 1 Lasso search ended. [2022-09-29 14:47:56,552 INFO L107 CFPrefixIsEmptyBuchi]: Type 3 Lasso search started. [2022-09-29 14:47:56,584 INFO L206 CFPrefixIsEmptyBuchi]: Type 3 Lasso search ended. [2022-09-29 14:47:56,584 INFO L50 CFPrefixIsEmptyBuchi]: Finished emptiness check, language is empty [2022-09-29 14:47:56,584 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is empty [2022-09-29 14:47:56,592 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 02:47:56 BoogieIcfgContainer [2022-09-29 14:47:56,593 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 14:47:56,595 INFO L158 Benchmark]: Toolchain (without parser) took 2971.93ms. Allocated memory was 168.8MB in the beginning and 221.2MB in the end (delta: 52.4MB). Free memory was 129.6MB in the beginning and 107.4MB in the end (delta: 22.2MB). Peak memory consumption was 75.7MB. Max. memory is 8.0GB. [2022-09-29 14:47:56,601 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 168.8MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:47:56,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.85ms. Allocated memory is still 168.8MB. Free memory was 129.5MB in the beginning and 128.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-29 14:47:56,605 INFO L158 Benchmark]: Boogie Preprocessor took 16.40ms. Allocated memory is still 168.8MB. Free memory was 128.0MB in the beginning and 127.1MB in the end (delta: 956.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 14:47:56,606 INFO L158 Benchmark]: RCFGBuilder took 205.00ms. Allocated memory is still 168.8MB. Free memory was 127.0MB in the beginning and 118.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-29 14:47:56,606 INFO L158 Benchmark]: BuchiAutomizer took 2717.56ms. Allocated memory was 168.8MB in the beginning and 221.2MB in the end (delta: 52.4MB). Free memory was 118.0MB in the beginning and 107.4MB in the end (delta: 10.7MB). Peak memory consumption was 64.1MB. Max. memory is 8.0GB. [2022-09-29 14:47:56,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13ms. Allocated memory is still 168.8MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.85ms. Allocated memory is still 168.8MB. Free memory was 129.5MB in the beginning and 128.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.40ms. Allocated memory is still 168.8MB. Free memory was 128.0MB in the beginning and 127.1MB in the end (delta: 956.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 205.00ms. Allocated memory is still 168.8MB. Free memory was 127.0MB in the beginning and 118.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2717.56ms. Allocated memory was 168.8MB in the beginning and 221.2MB in the end (delta: 52.4MB). Free memory was 118.0MB in the beginning and 107.4MB in the end (delta: 10.7MB). Peak memory consumption was 64.1MB. 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 5 + i * -2 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 5 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. 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, 184 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 182 mSDsluCounter, 228 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 162 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 184 IncrementalHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 120 mSDtfsCounter, 184 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq200 hnf89 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 27 PlacesBefore, 20 PlacesAfterwards, 24 TransitionsBefore, 17 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 1 FixpointIterations, 1 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 148 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 104, positive: 96, positive conditional: 0, positive unconditional: 96, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 72, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 72, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 104, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 72, unknown conditional: 0, unknown unconditional: 72] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 RESULT: Ultimate proved your program to be correct! [2022-09-29 14:47:56,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...