/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/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/regression/NonAtomicIncrement_2Threads_Loop.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:17:52,380 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:17:52,433 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-10-12 17:17:52,453 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:17:52,453 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:17:52,454 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:17:52,455 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:17:52,455 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:17:52,456 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:17:52,458 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:17:52,459 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:17:52,459 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:17:52,459 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:17:52,460 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:17:52,460 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:17:52,460 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:17:52,461 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:17:52,461 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:17:52,461 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:17:52,461 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:17:52,461 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:17:52,462 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:17:52,462 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:17:52,462 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:17:52,462 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:17:52,463 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:17:52,463 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:17:52,463 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:17:52,463 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:17:52,463 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:17:52,464 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:17:52,464 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:17:52,464 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:17:52,465 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:17:52,466 INFO L137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:17:52,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:17:52,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:17:52,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:17:52,677 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:17:52,678 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:17:52,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/NonAtomicIncrement_2Threads_Loop.bpl [2023-10-12 17:17:52,679 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/NonAtomicIncrement_2Threads_Loop.bpl' [2023-10-12 17:17:52,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:17:52,700 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:17:52,701 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:17:52,701 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:17:52,701 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:17:52,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:17:52" (1/1) ... [2023-10-12 17:17:52,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:17:52" (1/1) ... [2023-10-12 17:17:52,722 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:17:52,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:17:52,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:17:52,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:17:52,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:17:52,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:17:52" (1/1) ... [2023-10-12 17:17:52,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:17:52" (1/1) ... [2023-10-12 17:17:52,733 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:17:52" (1/1) ... [2023-10-12 17:17:52,733 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:17:52" (1/1) ... [2023-10-12 17:17:52,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:17:52" (1/1) ... [2023-10-12 17:17:52,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:17:52" (1/1) ... [2023-10-12 17:17:52,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:17:52" (1/1) ... [2023-10-12 17:17:52,739 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:17:52" (1/1) ... [2023-10-12 17:17:52,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:17:52,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:17:52,741 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:17:52,741 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:17:52,742 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:17:52" (1/1) ... [2023-10-12 17:17:52,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:52,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:17:52,769 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) [2023-10-12 17:17:52,789 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 [2023-10-12 17:17:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure fistIncrementProcess [2023-10-12 17:17:52,800 INFO L138 BoogieDeclarations]: Found implementation of procedure fistIncrementProcess [2023-10-12 17:17:52,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:17:52,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:17:52,800 INFO L130 BoogieDeclarations]: Found specification of procedure secondIncrementProcess [2023-10-12 17:17:52,800 INFO L138 BoogieDeclarations]: Found implementation of procedure secondIncrementProcess [2023-10-12 17:17:52,801 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-10-12 17:17:52,838 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:17:52,840 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:17:52,933 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:17:52,943 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:17:52,944 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:17:52,945 INFO L201 PluginConnector]: Adding new model NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:17:52 BoogieIcfgContainer [2023-10-12 17:17:52,945 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:17:52,946 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:17:52,946 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:17:52,951 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:17:52,952 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:17:52,952 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:17:52" (1/2) ... [2023-10-12 17:17:52,953 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d33bc6f and model type NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:17:52, skipping insertion in model container [2023-10-12 17:17:52,953 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:17:52,953 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:17:52" (2/2) ... [2023-10-12 17:17:52,957 INFO L332 chiAutomizerObserver]: Analyzing ICFG NonAtomicIncrement_2Threads_Loop.bpl [2023-10-12 17:17:53,006 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:17:53,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 28 transitions, 78 flow [2023-10-12 17:17:53,057 INFO L124 PetriNetUnfolderBase]: 3/24 cut-off events. [2023-10-12 17:17:53,058 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:17:53,061 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. [2023-10-12 17:17:53,061 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 28 transitions, 78 flow [2023-10-12 17:17:53,064 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 24 transitions, 66 flow [2023-10-12 17:17:53,068 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:17:53,078 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 24 transitions, 66 flow [2023-10-12 17:17:53,080 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 24 transitions, 66 flow [2023-10-12 17:17:53,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 24 transitions, 66 flow [2023-10-12 17:17:53,097 INFO L124 PetriNetUnfolderBase]: 3/24 cut-off events. [2023-10-12 17:17:53,097 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:17:53,098 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. [2023-10-12 17:17:53,098 INFO L119 LiptonReduction]: Number of co-enabled transitions 140 [2023-10-12 17:17:53,246 INFO L134 LiptonReduction]: Checked pairs total: 180 [2023-10-12 17:17:53,246 INFO L136 LiptonReduction]: Total number of compositions: 7 [2023-10-12 17:17:53,260 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:17:53,261 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:17:53,261 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:17:53,261 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:17:53,261 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:17:53,261 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:17:53,261 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:17:53,261 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:17:53,262 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 places, 17 transitions, 52 flow [2023-10-12 17:17:53,267 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:17:53,267 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-10-12 17:17:53,267 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:17:53,268 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:17:53,273 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:17:53,274 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 places, 17 transitions, 52 flow [2023-10-12 17:17:53,277 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:17:53,277 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-10-12 17:17:53,277 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:17:53,277 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:17:53,282 INFO L748 eck$LassoCheckResult]: Stem: 33#[$Ultimate##0]true [44] $Ultimate##0-->L19: Formula: (= v_x_5 0) InVars {} OutVars{x=v_x_5} AuxVars[] AssignedVars[x] 35#[L19]true [68] L19-->$Ultimate##0: 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#[L19-1, $Ultimate##0]true [52] $Ultimate##0-->L34-1: Formula: (= 0 v_fistIncrementProcessThread1of1ForFork0_i_1) InVars {} OutVars{fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_1} AuxVars[] AssignedVars[fistIncrementProcessThread1of1ForFork0_i] 39#[L19-1, L34-1]true [2023-10-12 17:17:53,282 INFO L750 eck$LassoCheckResult]: Loop: 39#[L19-1, L34-1]true [81] L34-1-->L36: Formula: (and (= v_fistIncrementProcessThread1of1ForFork0_localx_15 v_x_27) (< v_fistIncrementProcessThread1of1ForFork0_i_15 3)) InVars {fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_15, x=v_x_27} OutVars{fistIncrementProcessThread1of1ForFork0_localx=v_fistIncrementProcessThread1of1ForFork0_localx_15, fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_15, x=v_x_27} AuxVars[] AssignedVars[fistIncrementProcessThread1of1ForFork0_localx] 42#[L19-1, L36]true [82] L36-->L34-1: Formula: (and (= v_x_33 (+ v_fistIncrementProcessThread1of1ForFork0_localx_19 1)) (= v_fistIncrementProcessThread1of1ForFork0_i_17 (+ v_fistIncrementProcessThread1of1ForFork0_i_18 1))) InVars {fistIncrementProcessThread1of1ForFork0_localx=v_fistIncrementProcessThread1of1ForFork0_localx_19, fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_18} OutVars{fistIncrementProcessThread1of1ForFork0_localx=v_fistIncrementProcessThread1of1ForFork0_localx_19, fistIncrementProcessThread1of1ForFork0_i=v_fistIncrementProcessThread1of1ForFork0_i_17, x=v_x_33} AuxVars[] AssignedVars[fistIncrementProcessThread1of1ForFork0_i, x] 39#[L19-1, L34-1]true [2023-10-12 17:17:53,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:17:53,288 INFO L85 PathProgramCache]: Analyzing trace with hash 74235, now seen corresponding path program 1 times [2023-10-12 17:17:53,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:17:53,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815499315] [2023-10-12 17:17:53,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:17:53,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:17:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:17:53,344 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:17:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:17:53,355 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:17:53,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:17:53,357 INFO L85 PathProgramCache]: Analyzing trace with hash 3554, now seen corresponding path program 1 times [2023-10-12 17:17:53,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:17:53,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393230580] [2023-10-12 17:17:53,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:17:53,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:17:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:17:53,370 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:17:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:17:53,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:17:53,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:17:53,374 INFO L85 PathProgramCache]: Analyzing trace with hash 71342428, now seen corresponding path program 1 times [2023-10-12 17:17:53,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:17:53,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773971833] [2023-10-12 17:17:53,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:17:53,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:17:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:17:53,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:17:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:17:53,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:17:53,453 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:17:53,454 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:17:53,454 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:17:53,454 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:17:53,454 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:17:53,454 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:53,454 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:17:53,454 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:17:53,455 INFO L133 ssoRankerPreferences]: Filename of dumped script: NonAtomicIncrement_2Threads_Loop.bpl_BEv2_Iteration1_Loop [2023-10-12 17:17:53,455 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:17:53,455 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:17:53,464 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:17:53,473 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:17:53,516 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:17:53,517 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:17:53,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:53,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:17:53,520 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) [2023-10-12 17:17:53,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:17:53,527 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:17:53,540 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 [2023-10-12 17:17:53,565 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 [2023-10-12 17:17:53,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:53,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:17:53,567 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) [2023-10-12 17:17:53,569 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 [2023-10-12 17:17:53,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:17:53,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:17:53,706 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:17:53,706 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fistIncrementProcessThread1of1ForFork0_localx=2, x=0} Honda state: {fistIncrementProcessThread1of1ForFork0_localx=2, x=0} Generalized eigenvectors: [{fistIncrementProcessThread1of1ForFork0_localx=1, x=0}, {fistIncrementProcessThread1of1ForFork0_localx=-4, x=0}, {fistIncrementProcessThread1of1ForFork0_localx=1, x=1}] Lambdas: [4, 0, 1] Nus: [1, 0] [2023-10-12 17:17:53,711 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 [2023-10-12 17:17:53,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:53,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:17:53,712 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) [2023-10-12 17:17:53,714 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 [2023-10-12 17:17:53,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:17:53,762 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:17:53,782 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 [2023-10-12 17:17:53,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:53,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:17:53,793 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) [2023-10-12 17:17:53,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:17:53,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:17:53,796 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 [2023-10-12 17:17:53,810 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:17:53,816 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 [2023-10-12 17:17:53,816 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:17:53,816 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:17:53,816 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:17:53,817 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:17:53,817 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:17:53,817 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:53,817 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:17:53,817 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:17:53,817 INFO L133 ssoRankerPreferences]: Filename of dumped script: NonAtomicIncrement_2Threads_Loop.bpl_BEv2_Iteration1_Loop [2023-10-12 17:17:53,817 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:17:53,817 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:17:53,818 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:17:53,823 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:17:53,853 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:17:53,857 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:17:53,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:53,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:17:54,004 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) [2023-10-12 17:17:54,005 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 [2023-10-12 17:17:54,008 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 [2023-10-12 17:17:54,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:17:54,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:17:54,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:17:54,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:17:54,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:17:54,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:17:54,020 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:17:54,029 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:17:54,034 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 [2023-10-12 17:17:54,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:54,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:17:54,036 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) [2023-10-12 17:17:54,037 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 [2023-10-12 17:17:54,051 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 [2023-10-12 17:17:54,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:17:54,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:17:54,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:17:54,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:17:54,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:17:54,060 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:17:54,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:17:54,063 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:17:54,065 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:17:54,065 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:17:54,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:54,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:17:54,068 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) [2023-10-12 17:17:54,069 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 [2023-10-12 17:17:54,072 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:17:54,072 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:17:54,072 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:17:54,073 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fistIncrementProcessThread1of1ForFork0_i) = -2*fistIncrementProcessThread1of1ForFork0_i + 5 Supporting invariants [] [2023-10-12 17:17:54,077 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 [2023-10-12 17:17:54,079 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:17:54,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:17:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:17:54,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:17:54,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:17:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:17:54,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:17:54,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:17:54,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:17:54,160 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 [2023-10-12 17:17:54,161 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. 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) [2023-10-12 17:17:54,256 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. 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 8 states and 305 transitions. [2023-10-12 17:17:54,257 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:17:54,260 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:17:54,262 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 [2023-10-12 17:17:54,265 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) [2023-10-12 17:17:54,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 169 transitions. [2023-10-12 17:17:54,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 169 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:17:54,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:17:54,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 169 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:17:54,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:17:54,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 169 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:17:54,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:17:54,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 290 transitions, 1466 flow [2023-10-12 17:17:54,303 INFO L124 PetriNetUnfolderBase]: 101/186 cut-off events. [2023-10-12 17:17:54,303 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-10-12 17:17:54,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 186 events. 101/186 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 652 event pairs, 7 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 324. Up to 46 conditions per place. [2023-10-12 17:17:54,304 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 36 places, 290 transitions, 1466 flow [2023-10-12 17:17:54,313 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 36 places, 290 transitions, 1466 flow [2023-10-12 17:17:54,313 INFO L430 stractBuchiCegarLoop]: Abstraction has has 36 places, 290 transitions, 1466 flow [2023-10-12 17:17:54,313 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:17:54,313 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 36 places, 290 transitions, 1466 flow [2023-10-12 17:17:54,324 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:17:54,324 INFO L124 PetriNetUnfolderBase]: 22/46 cut-off events. [2023-10-12 17:17:54,325 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-10-12 17:17:54,325 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:17:54,325 INFO L748 eck$LassoCheckResult]: Stem: 33#[$Ultimate##0]true [44] $Ultimate##0-->L19: Formula: (= v_x_5 0) InVars {} OutVars{x=v_x_5} AuxVars[] AssignedVars[x] 35#[L19]true [68] L19-->$Ultimate##0: 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#[L19-1, $Ultimate##0]true [71] L19-1-->$Ultimate##0: 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] 102#[L20, $Ultimate##0, $Ultimate##0]true [59] $Ultimate##0-->L50-1: Formula: (= v_secondIncrementProcessThread1of1ForFork1_i_1 0) InVars {} OutVars{secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_1} AuxVars[] AssignedVars[secondIncrementProcessThread1of1ForFork1_i] 104#[L50-1, L20, $Ultimate##0]true [2023-10-12 17:17:54,325 INFO L750 eck$LassoCheckResult]: Loop: 104#[L50-1, L20, $Ultimate##0]true [78] L50-1-->L52: Formula: (and (< v_secondIncrementProcessThread1of1ForFork1_i_15 3) (= v_x_20 v_secondIncrementProcessThread1of1ForFork1_localx_13)) InVars {x=v_x_20, secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_15} OutVars{secondIncrementProcessThread1of1ForFork1_localx=v_secondIncrementProcessThread1of1ForFork1_localx_13, x=v_x_20, secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_15} AuxVars[] AssignedVars[secondIncrementProcessThread1of1ForFork1_localx] 107#[L20, $Ultimate##0, L52]true [79] L52-->L50-1: Formula: (and (= v_secondIncrementProcessThread1of1ForFork1_i_17 (+ v_secondIncrementProcessThread1of1ForFork1_i_18 1)) (= v_x_25 (+ v_secondIncrementProcessThread1of1ForFork1_localx_17 1))) InVars {secondIncrementProcessThread1of1ForFork1_localx=v_secondIncrementProcessThread1of1ForFork1_localx_17, secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_18} OutVars{secondIncrementProcessThread1of1ForFork1_localx=v_secondIncrementProcessThread1of1ForFork1_localx_17, x=v_x_25, secondIncrementProcessThread1of1ForFork1_i=v_secondIncrementProcessThread1of1ForFork1_i_17} AuxVars[] AssignedVars[x, secondIncrementProcessThread1of1ForFork1_i] 104#[L50-1, L20, $Ultimate##0]true [2023-10-12 17:17:54,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:17:54,326 INFO L85 PathProgramCache]: Analyzing trace with hash 2301933, now seen corresponding path program 1 times [2023-10-12 17:17:54,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:17:54,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433358496] [2023-10-12 17:17:54,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:17:54,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:17:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:17:54,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:17:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:17:54,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:17:54,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:17:54,340 INFO L85 PathProgramCache]: Analyzing trace with hash 3458, now seen corresponding path program 1 times [2023-10-12 17:17:54,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:17:54,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193534646] [2023-10-12 17:17:54,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:17:54,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:17:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:17:54,352 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:17:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:17:54,366 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:17:54,366 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:17:54,367 INFO L85 PathProgramCache]: Analyzing trace with hash -2082807186, now seen corresponding path program 1 times [2023-10-12 17:17:54,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:17:54,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759939203] [2023-10-12 17:17:54,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:17:54,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:17:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:17:54,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:17:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:17:54,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:17:54,413 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:17:54,413 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:17:54,413 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:17:54,413 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:17:54,413 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:17:54,414 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:54,414 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:17:54,414 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:17:54,414 INFO L133 ssoRankerPreferences]: Filename of dumped script: NonAtomicIncrement_2Threads_Loop.bpl_BEv2_Iteration2_Loop [2023-10-12 17:17:54,414 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:17:54,414 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:17:54,415 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:17:54,420 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:17:54,448 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:17:54,448 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:17:54,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:54,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:17:54,450 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) [2023-10-12 17:17:54,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:17:54,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:17:54,458 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 [2023-10-12 17:17:54,473 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 [2023-10-12 17:17:54,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:54,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:17:54,474 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) [2023-10-12 17:17:54,475 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 [2023-10-12 17:17:54,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:17:54,477 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:17:54,504 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:17:54,513 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 [2023-10-12 17:17:54,513 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:17:54,513 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:17:54,513 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:17:54,513 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:17:54,513 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:17:54,513 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:54,513 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:17:54,513 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:17:54,513 INFO L133 ssoRankerPreferences]: Filename of dumped script: NonAtomicIncrement_2Threads_Loop.bpl_BEv2_Iteration2_Loop [2023-10-12 17:17:54,513 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:17:54,514 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:17:54,514 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:17:54,520 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:17:54,549 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:17:54,549 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:17:54,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:54,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:17:54,550 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) [2023-10-12 17:17:54,571 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 [2023-10-12 17:17:54,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:17:54,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:17:54,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:17:54,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:17:54,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:17:54,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:17:54,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:17:54,584 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 [2023-10-12 17:17:54,601 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:17:54,623 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 [2023-10-12 17:17:54,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:54,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:17:54,637 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) [2023-10-12 17:17:54,639 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 [2023-10-12 17:17:54,641 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 [2023-10-12 17:17:54,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:17:54,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:17:54,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:17:54,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:17:54,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:17:54,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:17:54,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:17:54,652 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:17:54,654 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:17:54,654 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:17:54,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:17:54,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:17:54,657 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) [2023-10-12 17:17:54,658 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 [2023-10-12 17:17:54,659 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:17:54,659 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:17:54,659 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:17:54,659 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(secondIncrementProcessThread1of1ForFork1_i) = -2*secondIncrementProcessThread1of1ForFork1_i + 5 Supporting invariants [] [2023-10-12 17:17:54,664 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 [2023-10-12 17:17:54,665 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:17:54,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:17:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:17:54,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:17:54,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:17:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:17:54,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:17:54,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:17:54,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:17:54,706 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 [2023-10-12 17:17:54,706 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. 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) [2023-10-12 17:17:54,779 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. 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 8 states and 305 transitions. [2023-10-12 17:17:54,779 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:17:54,820 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 [2023-10-12 17:17:54,827 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:17:54,828 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 [2023-10-12 17:17:54,829 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) [2023-10-12 17:17:54,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 169 transitions. [2023-10-12 17:17:54,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 169 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:17:54,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:17:54,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 169 transitions. Stem has 6 letters. Loop has 2 letters. [2023-10-12 17:17:54,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:17:54,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 169 transitions. Stem has 4 letters. Loop has 4 letters. [2023-10-12 17:17:54,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:17:54,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 4932 transitions, 34776 flow [2023-10-12 17:17:54,834 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 [2023-10-12 17:17:54,949 INFO L124 PetriNetUnfolderBase]: 296/514 cut-off events. [2023-10-12 17:17:54,949 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-10-12 17:17:54,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1664 conditions, 514 events. 296/514 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2334 event pairs, 1 based on Foata normal form. 0/277 useless extension candidates. Maximal degree in co-relation 1222. Up to 143 conditions per place. [2023-10-12 17:17:54,953 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 52 places, 4932 transitions, 34776 flow [2023-10-12 17:17:54,999 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 52 places, 4932 transitions, 34776 flow [2023-10-12 17:17:55,000 INFO L430 stractBuchiCegarLoop]: Abstraction has has 52 places, 4932 transitions, 34776 flow [2023-10-12 17:17:55,000 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:17:55,000 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 52 places, 4932 transitions, 34776 flow [2023-10-12 17:17:55,084 INFO L124 PetriNetUnfolderBase]: 296/514 cut-off events. [2023-10-12 17:17:55,084 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-10-12 17:17:55,084 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:17:55,091 INFO L201 PluginConnector]: Adding new model NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:17:55 BoogieIcfgContainer [2023-10-12 17:17:55,092 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:17:55,092 INFO L158 Benchmark]: Toolchain (without parser) took 2392.55ms. Allocated memory was 195.0MB in the beginning and 252.7MB in the end (delta: 57.7MB). Free memory was 144.5MB in the beginning and 127.0MB in the end (delta: 17.5MB). Peak memory consumption was 81.9MB. Max. memory is 8.0GB. [2023-10-12 17:17:55,092 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.28ms. Allocated memory is still 195.0MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:17:55,093 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.81ms. Allocated memory is still 195.0MB. Free memory was 144.4MB in the beginning and 142.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:17:55,093 INFO L158 Benchmark]: Boogie Preprocessor took 15.70ms. Allocated memory is still 195.0MB. Free memory was 142.8MB in the beginning and 141.9MB in the end (delta: 972.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:17:55,093 INFO L158 Benchmark]: RCFGBuilder took 203.99ms. Allocated memory is still 195.0MB. Free memory was 141.7MB in the beginning and 133.0MB in the end (delta: 8.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:17:55,093 INFO L158 Benchmark]: BuchiAutomizer took 2145.76ms. Allocated memory was 195.0MB in the beginning and 252.7MB in the end (delta: 57.7MB). Free memory was 132.8MB in the beginning and 127.0MB in the end (delta: 5.8MB). Peak memory consumption was 70.3MB. Max. memory is 8.0GB. [2023-10-12 17:17:55,095 INFO L338 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 0.28ms. Allocated memory is still 195.0MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.81ms. Allocated memory is still 195.0MB. Free memory was 144.4MB in the beginning and 142.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.70ms. Allocated memory is still 195.0MB. Free memory was 142.8MB in the beginning and 141.9MB in the end (delta: 972.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 203.99ms. Allocated memory is still 195.0MB. Free memory was 141.7MB in the beginning and 133.0MB in the end (delta: 8.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2145.76ms. Allocated memory was 195.0MB in the beginning and 252.7MB in the end (delta: 57.7MB). Free memory was 132.8MB in the beginning and 127.0MB in the end (delta: 5.8MB). Peak memory consumption was 70.3MB. 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 2.0s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. 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, 108 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: 170ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 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, 27 PlacesBefore, 20 PlacesAfterwards, 24 TransitionsBefore, 17 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 1 FixpointIterations, 1 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 180 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 143, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 88, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 88, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 42, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 143, independent: 52, independent conditional: 0, independent unconditional: 52, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 88, unknown conditional: 0, unknown unconditional: 88] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:17:55,116 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...