/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/POPL2023/sum-rwlock.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:21:02,325 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:21:02,369 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 17:21:02,390 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:21:02,390 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:21:02,391 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:21:02,392 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:21:02,392 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:21:02,392 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:21:02,392 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:21:02,392 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:21:02,393 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:21:02,393 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:21:02,393 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:21:02,393 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:21:02,394 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:21:02,394 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:21:02,394 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:21:02,394 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:21:02,394 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:21:02,395 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:21:02,395 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:21:02,395 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:21:02,395 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:21:02,396 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:21:02,396 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:21:02,396 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:21:02,396 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:21:02,397 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:21:02,397 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:21:02,397 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:21:02,397 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:21:02,397 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:21:02,398 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:21:02,399 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:21:02,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:21:02,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:21:02,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:21:02,608 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:21:02,609 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:21:02,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum-rwlock.bpl [2023-10-12 17:21:02,610 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum-rwlock.bpl' [2023-10-12 17:21:02,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:21:02,636 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:21:02,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:21:02,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:21:02,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:21:02,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:02" (1/1) ... [2023-10-12 17:21:02,652 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:02" (1/1) ... [2023-10-12 17:21:02,664 INFO L138 Inliner]: procedures = 6, calls = 7, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 22 [2023-10-12 17:21:02,665 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:21:02,667 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:21:02,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:21:02,668 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:21:02,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:02" (1/1) ... [2023-10-12 17:21:02,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:02" (1/1) ... [2023-10-12 17:21:02,675 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:02" (1/1) ... [2023-10-12 17:21:02,675 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:02" (1/1) ... [2023-10-12 17:21:02,676 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:02" (1/1) ... [2023-10-12 17:21:02,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:02" (1/1) ... [2023-10-12 17:21:02,679 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:02" (1/1) ... [2023-10-12 17:21:02,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:02" (1/1) ... [2023-10-12 17:21:02,680 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:21:02,681 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:21:02,681 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:21:02,681 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:21:02,682 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:02" (1/1) ... [2023-10-12 17:21:02,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:02,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:02,704 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 17:21:02,712 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 17:21:02,738 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:21:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:21:02,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:21:02,738 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2023-10-12 17:21:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2023-10-12 17:21:02,738 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2023-10-12 17:21:02,738 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2023-10-12 17:21:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2023-10-12 17:21:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2023-10-12 17:21:02,739 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T3 given in one single declaration [2023-10-12 17:21:02,739 INFO L130 BoogieDeclarations]: Found specification of procedure T3 [2023-10-12 17:21:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure T3 [2023-10-12 17:21:02,739 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 17:21:02,779 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:21:02,781 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:21:02,951 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:21:02,983 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:21:02,983 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-10-12 17:21:02,985 INFO L201 PluginConnector]: Adding new model sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:21:02 BoogieIcfgContainer [2023-10-12 17:21:02,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:21:02,985 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:21:02,986 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:21:02,989 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:21:02,989 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:21:02,990 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:02" (1/2) ... [2023-10-12 17:21:02,991 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@152adf0f and model type sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:21:02, skipping insertion in model container [2023-10-12 17:21:02,991 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:21:02,991 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:21:02" (2/2) ... [2023-10-12 17:21:02,993 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum-rwlock.bpl [2023-10-12 17:21:03,086 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:21:03,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 36 transitions, 96 flow [2023-10-12 17:21:03,139 INFO L124 PetriNetUnfolderBase]: 3/30 cut-off events. [2023-10-12 17:21:03,140 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:21:03,144 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. [2023-10-12 17:21:03,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 36 transitions, 96 flow [2023-10-12 17:21:03,148 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 30 transitions, 78 flow [2023-10-12 17:21:03,151 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:21:03,182 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 30 transitions, 78 flow [2023-10-12 17:21:03,185 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 30 transitions, 78 flow [2023-10-12 17:21:03,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 78 flow [2023-10-12 17:21:03,201 INFO L124 PetriNetUnfolderBase]: 3/30 cut-off events. [2023-10-12 17:21:03,201 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:21:03,202 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. [2023-10-12 17:21:03,203 INFO L119 LiptonReduction]: Number of co-enabled transitions 300 [2023-10-12 17:21:03,547 INFO L134 LiptonReduction]: Checked pairs total: 259 [2023-10-12 17:21:03,547 INFO L136 LiptonReduction]: Total number of compositions: 11 [2023-10-12 17:21:03,556 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:21:03,557 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:21:03,557 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:21:03,557 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:21:03,557 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:21:03,557 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:21:03,557 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:21:03,557 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:21:03,558 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 places, 19 transitions, 56 flow [2023-10-12 17:21:03,560 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:21:03,560 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:21:03,561 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:21:03,561 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:21:03,563 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:21:03,563 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 places, 19 transitions, 56 flow [2023-10-12 17:21:03,564 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:21:03,564 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:21:03,564 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:21:03,564 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:21:03,567 INFO L748 eck$LassoCheckResult]: Stem: 44#[$Ultimate##0]true [133] $Ultimate##0-->L66: Formula: (and (= v_y_24 0) (= v_x_24 0)) InVars {} OutVars{y=v_y_24, x=v_x_24} AuxVars[] AssignedVars[y, x] 46#[L66]true [116] L66-->L17: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_thidvar0] 48#[L66-1, L17]true [2023-10-12 17:21:03,567 INFO L750 eck$LassoCheckResult]: Loop: 48#[L66-1, L17]true [132] L17-->L17: Formula: (and (= v_y_21 (+ v_y_20 1)) (= (+ v_x_21 1) v_x_20)) InVars {y=v_y_21, x=v_x_21} OutVars{y=v_y_20, x=v_x_20} AuxVars[] AssignedVars[y, x] 48#[L66-1, L17]true [2023-10-12 17:21:03,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:03,571 INFO L85 PathProgramCache]: Analyzing trace with hash 5200, now seen corresponding path program 1 times [2023-10-12 17:21:03,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:03,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408447356] [2023-10-12 17:21:03,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:03,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:03,681 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:03,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:03,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:03,703 INFO L85 PathProgramCache]: Analyzing trace with hash 163, now seen corresponding path program 1 times [2023-10-12 17:21:03,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:03,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069338750] [2023-10-12 17:21:03,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:03,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:03,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:03,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:03,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:03,718 INFO L85 PathProgramCache]: Analyzing trace with hash 161332, now seen corresponding path program 1 times [2023-10-12 17:21:03,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:03,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251432276] [2023-10-12 17:21:03,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:03,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:03,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:03,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:03,757 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:21:03,757 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:21:03,758 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:21:03,758 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:21:03,758 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:21:03,758 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:03,758 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:21:03,758 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:21:03,758 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-rwlock.bpl_BEv2_Iteration1_Loop [2023-10-12 17:21:03,758 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:21:03,758 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:21:03,769 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 17:21:03,778 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 17:21:03,806 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:21:03,807 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:21:03,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:03,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:03,811 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 17:21:03,817 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 17:21:03,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:21:03,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:21:03,851 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 [2023-10-12 17:21:03,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:03,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:03,852 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 17:21:03,854 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 17:21:03,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:21:03,856 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:21:03,881 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:21:03,881 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] [2023-10-12 17:21:03,887 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 17:21:03,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:03,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:03,888 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 17:21:03,893 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 17:21:03,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:21:03,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:21:03,926 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 17:21:03,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:03,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:03,929 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 17:21:03,931 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 17:21:03,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:21:03,933 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:21:03,953 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:21:03,953 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] [2023-10-12 17:21:03,959 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 17:21:03,984 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:21:03,984 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:21:03,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:21:03,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:21:03,984 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:21:03,984 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:03,984 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:21:03,984 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:21:03,985 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-rwlock.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:21:03,985 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:21:03,985 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:21:03,986 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 17:21:03,991 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 17:21:03,994 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 17:21:04,026 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:21:04,026 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:21:04,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:04,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:04,028 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 17:21:04,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:21:04,036 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:21:04,044 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 17:21:04,068 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 17:21:04,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:04,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:04,070 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 17:21:04,072 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 17:21:04,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:21:04,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:21:04,095 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:21:04,096 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] [2023-10-12 17:21:04,099 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 17:21:04,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:04,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:04,102 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 17:21:04,103 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 17:21:04,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:21:04,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:21:04,116 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:21:04,116 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {T1Thread1of1ForFork0_thidvar0=0} Honda state: {T1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:21:04,120 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 17:21:04,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:04,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:04,122 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 17:21:04,123 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 17:21:04,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:21:04,125 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:21:04,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-10-12 17:21:04,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:04,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:04,139 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 17:21:04,149 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 17:21:04,150 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:21:04,150 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:21:04,173 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:21:04,174 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] [2023-10-12 17:21:04,179 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 17:21:04,186 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier1,QUANTIFIED] [2023-10-12 17:21:04,186 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier2,QUANTIFIED] [2023-10-12 17:21:04,186 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier3,QUANTIFIED] [2023-10-12 17:21:04,190 INFO L201 PluginConnector]: Adding new model sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:21:04 BoogieIcfgContainer [2023-10-12 17:21:04,191 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:21:04,191 INFO L158 Benchmark]: Toolchain (without parser) took 1555.39ms. Allocated memory was 217.1MB in the beginning and 303.0MB in the end (delta: 86.0MB). Free memory was 164.5MB in the beginning and 241.3MB in the end (delta: -76.8MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. [2023-10-12 17:21:04,192 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.21ms. Allocated memory is still 217.1MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:21:04,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.96ms. Allocated memory is still 217.1MB. Free memory was 164.4MB in the beginning and 162.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:21:04,192 INFO L158 Benchmark]: Boogie Preprocessor took 13.62ms. Allocated memory is still 217.1MB. Free memory was 162.4MB in the beginning and 161.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:21:04,193 INFO L158 Benchmark]: RCFGBuilder took 303.72ms. Allocated memory is still 217.1MB. Free memory was 161.4MB in the beginning and 182.5MB in the end (delta: -21.1MB). Peak memory consumption was 16.2MB. Max. memory is 8.0GB. [2023-10-12 17:21:04,193 INFO L158 Benchmark]: BuchiAutomizer took 1205.15ms. Allocated memory was 217.1MB in the beginning and 303.0MB in the end (delta: 86.0MB). Free memory was 182.4MB in the beginning and 241.3MB in the end (delta: -58.9MB). Peak memory consumption was 25.8MB. Max. memory is 8.0GB. [2023-10-12 17:21:04,194 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 0.21ms. Allocated memory is still 217.1MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.96ms. Allocated memory is still 217.1MB. Free memory was 164.4MB in the beginning and 162.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.62ms. Allocated memory is still 217.1MB. Free memory was 162.4MB in the beginning and 161.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 303.72ms. Allocated memory is still 217.1MB. Free memory was 161.4MB in the beginning and 182.5MB in the end (delta: -21.1MB). Peak memory consumption was 16.2MB. Max. memory is 8.0GB. * BuchiAutomizer took 1205.15ms. Allocated memory was 217.1MB in the beginning and 303.0MB in the end (delta: 86.0MB). Free memory was 182.4MB in the beginning and 241.3MB in the end (delta: -58.9MB). Peak memory consumption was 25.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier3,QUANTIFIED] * 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 0.6s. 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: 0.2s InitialAbstractionConstructionTime: 0.4s - 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. [2023-10-12 17:21:04,199 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier4,QUANTIFIED] [2023-10-12 17:21:04,199 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier5,QUANTIFIED] [2023-10-12 17:21:04,199 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier6,QUANTIFIED] [2023-10-12 17:21:04,199 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier7,QUANTIFIED] [2023-10-12 17:21:04,199 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier8,QUANTIFIED] [2023-10-12 17:21:04,199 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier9,QUANTIFIED] 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4s, 37 PlacesBefore, 26 PlacesAfterwards, 30 TransitionsBefore, 19 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 259 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 236, independent: 230, independent conditional: 0, independent unconditional: 230, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 174, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 174, independent: 159, independent conditional: 0, independent unconditional: 159, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 94, independent: 69, independent conditional: 0, independent unconditional: 69, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 236, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 174, unknown conditional: 0, unknown unconditional: 174] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, 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 incorrect! [2023-10-12 17:21:04,221 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...