/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET --buchiautomizer.use.buchi.petri.net.intersection.optimizations false --buchiautomizer.use.automata.for.buchi.petri.net.emptiness.check true -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2023/sum-rwlock.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-?-9ecb849-m [2024-02-10 01:37:32,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-10 01:37:32,900 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2024-02-10 01:37:32,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-10 01:37:32,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-10 01:37:32,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.Only consider context switches at boundaries of atomic blocks [2024-02-10 01:37:33,114 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-10 01:37:33,115 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-10 01:37:33,115 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-10 01:37:33,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-10 01:37:33,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-10 01:37:33,117 INFO L153 SettingsManager]: * Use SBE=true [2024-02-10 01:37:33,117 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-02-10 01:37:33,117 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-02-10 01:37:33,118 INFO L153 SettingsManager]: * Use old map elimination=false [2024-02-10 01:37:33,118 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-02-10 01:37:33,118 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-02-10 01:37:33,119 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-02-10 01:37:33,119 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-10 01:37:33,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-02-10 01:37:33,119 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-10 01:37:33,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-10 01:37:33,120 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-10 01:37:33,120 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-10 01:37:33,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-02-10 01:37:33,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-02-10 01:37:33,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-02-10 01:37:33,121 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-02-10 01:37:33,122 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-10 01:37:33,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-10 01:37:33,122 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-02-10 01:37:33,122 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-10 01:37:33,123 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-10 01:37:33,123 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-10 01:37:33,123 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-10 01:37:33,123 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-10 01:37:33,124 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-10 01:37:33,124 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-02-10 01:37:33,124 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Use Buchi Petri Net Intersection Optimizations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Use automata for Buchi Petri Net emptiness check -> true [2024-02-10 01:37:33,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-10 01:37:33,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-10 01:37:33,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-10 01:37:33,489 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-02-10 01:37:33,490 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-02-10 01:37:33,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum-rwlock.bpl [2024-02-10 01:37:33,491 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum-rwlock.bpl' [2024-02-10 01:37:33,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-10 01:37:33,519 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-02-10 01:37:33,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-10 01:37:33,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-10 01:37:33,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-10 01:37:33,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 01:37:33" (1/1) ... [2024-02-10 01:37:33,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 01:37:33" (1/1) ... [2024-02-10 01:37:33,555 INFO L138 Inliner]: procedures = 6, calls = 7, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 22 [2024-02-10 01:37:33,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-10 01:37:33,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-10 01:37:33,558 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-10 01:37:33,558 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-10 01:37:33,566 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 01:37:33" (1/1) ... [2024-02-10 01:37:33,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 01:37:33" (1/1) ... [2024-02-10 01:37:33,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 01:37:33" (1/1) ... [2024-02-10 01:37:33,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 01:37:33" (1/1) ... [2024-02-10 01:37:33,569 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 01:37:33" (1/1) ... [2024-02-10 01:37:33,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 01:37:33" (1/1) ... [2024-02-10 01:37:33,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 01:37:33" (1/1) ... [2024-02-10 01:37:33,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 01:37:33" (1/1) ... [2024-02-10 01:37:33,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-10 01:37:33,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-10 01:37:33,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-10 01:37:33,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-10 01:37:33,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 01:37:33" (1/1) ... [2024-02-10 01:37:33,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 01:37:33,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 01:37:33,619 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) [2024-02-10 01:37:33,629 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 [2024-02-10 01:37:33,667 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-02-10 01:37:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-10 01:37:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-10 01:37:33,668 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2024-02-10 01:37:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2024-02-10 01:37:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2024-02-10 01:37:33,668 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2024-02-10 01:37:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2024-02-10 01:37:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2024-02-10 01:37:33,669 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T3 given in one single declaration [2024-02-10 01:37:33,669 INFO L130 BoogieDeclarations]: Found specification of procedure T3 [2024-02-10 01:37:33,669 INFO L138 BoogieDeclarations]: Found implementation of procedure T3 [2024-02-10 01:37:33,670 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-10 01:37:33,716 INFO L236 CfgBuilder]: Building ICFG [2024-02-10 01:37:33,718 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-10 01:37:33,829 INFO L277 CfgBuilder]: Performing block encoding [2024-02-10 01:37:33,859 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-10 01:37:33,859 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2024-02-10 01:37:33,863 INFO L201 PluginConnector]: Adding new model sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 01:37:33 BoogieIcfgContainer [2024-02-10 01:37:33,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-10 01:37:33,864 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-02-10 01:37:33,865 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-02-10 01:37:33,871 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-02-10 01:37:33,871 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-10 01:37:33,872 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 01:37:33" (1/2) ... [2024-02-10 01:37:33,874 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b914600 and model type sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.02 01:37:33, skipping insertion in model container [2024-02-10 01:37:33,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-10 01:37:33,874 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 01:37:33" (2/2) ... [2024-02-10 01:37:33,875 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum-rwlock.bpl [2024-02-10 01:37:33,938 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-02-10 01:37:33,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 36 transitions, 93 flow [2024-02-10 01:37:33,986 INFO L124 PetriNetUnfolderBase]: 3/30 cut-off events. [2024-02-10 01:37:33,987 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-10 01:37:33,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 30 events. 3/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 54 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-02-10 01:37:33,996 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 36 transitions, 93 flow [2024-02-10 01:37:34,001 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 30 transitions, 78 flow [2024-02-10 01:37:34,006 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2024-02-10 01:37:34,007 INFO L304 stractBuchiCegarLoop]: Hoare is false [2024-02-10 01:37:34,007 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-02-10 01:37:34,007 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-02-10 01:37:34,007 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-02-10 01:37:34,007 INFO L308 stractBuchiCegarLoop]: Difference is false [2024-02-10 01:37:34,007 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-02-10 01:37:34,007 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2024-02-10 01:37:34,008 INFO L139 chiPetriNetCegarLoop]: use automaton for emptiness check [2024-02-10 01:37:34,008 INFO L128 iNet2FiniteAutomaton]: Start buchiPetriNet2FiniteAutomaton. Operand has 37 places, 30 transitions, 78 flow [2024-02-10 01:37:34,065 INFO L151 iNet2FiniteAutomaton]: Finished buchiPetriNet2FiniteAutomaton. Result has 298 states, 296 states have (on average 2.935810810810811) internal successors, (869), 297 states have internal predecessors, (869), 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) [2024-02-10 01:37:34,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 298 states, 296 states have (on average 2.935810810810811) internal successors, (869), 297 states have internal predecessors, (869), 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) [2024-02-10 01:37:34,108 INFO L131 ngComponentsAnalysis]: Automaton has 37 accepting balls. 266 [2024-02-10 01:37:34,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-10 01:37:34,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-10 01:37:34,113 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-02-10 01:37:34,113 INFO L139 chiPetriNetCegarLoop]: use automaton for emptiness check [2024-02-10 01:37:34,113 INFO L128 iNet2FiniteAutomaton]: Start buchiPetriNet2FiniteAutomaton. Operand has 37 places, 30 transitions, 78 flow [2024-02-10 01:37:34,129 INFO L151 iNet2FiniteAutomaton]: Finished buchiPetriNet2FiniteAutomaton. Result has 298 states, 296 states have (on average 2.935810810810811) internal successors, (869), 297 states have internal predecessors, (869), 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) [2024-02-10 01:37:34,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 298 states, 296 states have (on average 2.935810810810811) internal successors, (869), 297 states have internal predecessors, (869), 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) [2024-02-10 01:37:34,143 INFO L131 ngComponentsAnalysis]: Automaton has 37 accepting balls. 266 [2024-02-10 01:37:34,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-10 01:37:34,143 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-10 01:37:34,149 INFO L748 eck$LassoCheckResult]: Stem: Black: 641#[$Ultimate##0]don't care [90] $Ultimate##0-->L64: Formula: (= v_x_1 0) InVars {} OutVars{x=v_x_1} AuxVars[] AssignedVars[x] 644#[L64]don't care [83] L64-->L66: Formula: (= v_y_1 0) InVars {} OutVars{y=v_y_1} AuxVars[] AssignedVars[y] 646#[L66]don't care [116] L66-->L17: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_thidvar0] 648#[L66-1, L17]don't care [2024-02-10 01:37:34,149 INFO L750 eck$LassoCheckResult]: Loop: 648#[L66-1, L17]don't care [96] L17-->L19: Formula: (= (+ v_x_5 1) v_x_4) InVars {x=v_x_5} OutVars{x=v_x_4} AuxVars[] AssignedVars[x] 650#[L19, L66-1]don't care [97] L19-->L17: Formula: (= (+ v_y_4 1) v_y_5) InVars {y=v_y_5} OutVars{y=v_y_4} AuxVars[] AssignedVars[y] 648#[L66-1, L17]don't care [2024-02-10 01:37:34,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 01:37:34,155 INFO L85 PathProgramCache]: Analyzing trace with hash 118970, now seen corresponding path program 1 times [2024-02-10 01:37:34,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 01:37:34,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954261667] [2024-02-10 01:37:34,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 01:37:34,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 01:37:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 01:37:34,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 01:37:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 01:37:34,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 01:37:34,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 01:37:34,278 INFO L85 PathProgramCache]: Analyzing trace with hash 4034, now seen corresponding path program 1 times [2024-02-10 01:37:34,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 01:37:34,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691458235] [2024-02-10 01:37:34,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 01:37:34,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 01:37:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 01:37:34,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 01:37:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 01:37:34,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 01:37:34,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 01:37:34,310 INFO L85 PathProgramCache]: Analyzing trace with hash 114333243, now seen corresponding path program 1 times [2024-02-10 01:37:34,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 01:37:34,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391174922] [2024-02-10 01:37:34,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 01:37:34,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 01:37:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 01:37:34,318 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 01:37:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 01:37:34,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 01:37:34,388 INFO L210 LassoAnalysis]: Preferences: [2024-02-10 01:37:34,389 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-10 01:37:34,389 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-10 01:37:34,389 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-10 01:37:34,390 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-10 01:37:34,390 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 01:37:34,390 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-10 01:37:34,390 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-10 01:37:34,390 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-rwlock.bpl_BEv2_Iteration1_Loop [2024-02-10 01:37:34,390 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-10 01:37:34,390 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-10 01:37:34,405 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-10 01:37:34,428 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-10 01:37:34,474 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-10 01:37:34,475 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-10 01:37:34,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 01:37:34,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 01:37:34,483 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) [2024-02-10 01:37:34,485 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-10 01:37:34,485 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-10 01:37:34,485 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 [2024-02-10 01:37:34,501 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 [2024-02-10 01:37:34,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 01:37:34,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 01:37:34,508 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) [2024-02-10 01:37:34,509 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 [2024-02-10 01:37:34,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-10 01:37:34,510 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-10 01:37:34,561 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-10 01:37:34,561 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y=0} Honda state: {y=0} Generalized eigenvectors: [{y=4}, {y=3}, {y=-8}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-02-10 01:37:34,566 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 [2024-02-10 01:37:34,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 01:37:34,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 01:37:34,568 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) [2024-02-10 01:37:34,574 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 [2024-02-10 01:37:34,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-10 01:37:34,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-10 01:37:34,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-02-10 01:37:34,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 01:37:34,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 01:37:34,597 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) [2024-02-10 01:37:34,598 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 [2024-02-10 01:37:34,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-10 01:37:34,600 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-10 01:37:34,643 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-10 01:37:34,644 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x=0} Honda state: {x=0} Generalized eigenvectors: [{x=2}, {x=5}, {x=-6}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-02-10 01:37:34,656 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 [2024-02-10 01:37:34,690 INFO L210 LassoAnalysis]: Preferences: [2024-02-10 01:37:34,690 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-10 01:37:34,690 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-10 01:37:34,690 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-10 01:37:34,690 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-10 01:37:34,690 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 01:37:34,691 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-10 01:37:34,691 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-10 01:37:34,691 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-rwlock.bpl_BEv2_Iteration1_Lasso [2024-02-10 01:37:34,691 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-10 01:37:34,691 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-10 01:37:34,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-10 01:37:34,698 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-10 01:37:34,704 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-10 01:37:34,781 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-10 01:37:34,781 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-10 01:37:34,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 01:37:34,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 01:37:34,784 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) [2024-02-10 01:37:34,792 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 [2024-02-10 01:37:34,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-10 01:37:34,792 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-10 01:37:34,812 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-10 01:37:34,813 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {T1Thread1of1ForFork0_thidvar0=0} Honda state: {T1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-02-10 01:37:34,817 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 [2024-02-10 01:37:34,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 01:37:34,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 01:37:34,821 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) [2024-02-10 01:37:34,822 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 [2024-02-10 01:37:34,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-10 01:37:34,825 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-10 01:37:34,856 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 [2024-02-10 01:37:34,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 01:37:34,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 01:37:34,858 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) [2024-02-10 01:37:34,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-10 01:37:34,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-10 01:37:34,892 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 [2024-02-10 01:37:34,899 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-10 01:37:34,900 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x=0} Honda state: {x=0} Generalized eigenvectors: [{x=2}, {x=5}, {x=-6}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-02-10 01:37:34,910 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 [2024-02-10 01:37:34,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 01:37:34,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 01:37:34,917 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) [2024-02-10 01:37:34,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-10 01:37:34,924 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-10 01:37:34,935 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 [2024-02-10 01:37:34,951 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 [2024-02-10 01:37:34,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 01:37:34,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 01:37:34,953 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) [2024-02-10 01:37:34,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-10 01:37:34,959 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-10 01:37:34,974 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 [2024-02-10 01:37:34,983 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-10 01:37:34,983 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y=0} Honda state: {y=0} Generalized eigenvectors: [{y=4}, {y=3}, {y=-8}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-02-10 01:37:34,990 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 [2024-02-10 01:37:35,005 INFO L201 PluginConnector]: Adding new model sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.02 01:37:35 BoogieIcfgContainer [2024-02-10 01:37:35,006 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-02-10 01:37:35,008 INFO L158 Benchmark]: Toolchain (without parser) took 1488.29ms. Allocated memory is still 179.3MB. Free memory was 142.6MB in the beginning and 114.2MB in the end (delta: 28.4MB). Peak memory consumption was 30.1MB. Max. memory is 8.0GB. [2024-02-10 01:37:35,009 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 179.3MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 8.0GB. [2024-02-10 01:37:35,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.41ms. Allocated memory is still 179.3MB. Free memory was 142.6MB in the beginning and 140.7MB in the end (delta: 1.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-02-10 01:37:35,011 INFO L158 Benchmark]: Boogie Preprocessor took 18.16ms. Allocated memory is still 179.3MB. Free memory was 140.5MB in the beginning and 139.5MB in the end (delta: 986.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-02-10 01:37:35,013 INFO L158 Benchmark]: RCFGBuilder took 287.00ms. Allocated memory is still 179.3MB. Free memory was 139.4MB in the beginning and 128.4MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-02-10 01:37:35,017 INFO L158 Benchmark]: BuchiAutomizer took 1141.87ms. Allocated memory is still 179.3MB. Free memory was 128.3MB in the beginning and 114.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. [2024-02-10 01:37:35,018 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 0.12ms. Allocated memory is still 179.3MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.41ms. Allocated memory is still 179.3MB. Free memory was 142.6MB in the beginning and 140.7MB in the end (delta: 1.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.16ms. Allocated memory is still 179.3MB. Free memory was 140.5MB in the beginning and 139.5MB in the end (delta: 986.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 287.00ms. Allocated memory is still 179.3MB. Free memory was 139.4MB in the beginning and 128.4MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 1141.87ms. Allocated memory is still 179.3MB. Free memory was 128.3MB in the beginning and 114.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 1 iterations. TraceHistogramMax:0. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq212 hnf100 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {x=0, y=0, freshIdentifier7=0} State at position 1 is {x=0, y=0, freshIdentifier8=1} For i>1, the state at position i is {x=0 + sum_{k=0}^i 2 + 5 + -6, y=0 + sum_{k=0}^i 4 + 3 + -8, freshIdentifier9=1 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 6GEVs Lambdas: [1, 1, 1, 1, 1, 1] Mus: [0, 0, 0, 0, 0] - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L63] 0 x := 0; [L64] 0 y := 0; [L66] FORK 0 fork 1 T1(); Loop: [L18] x := x + 1; [L19] y := y - 1; End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-02-10 01:37:35,040 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...