/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_AUTOMATON -i ../../../trunk/examples/concurrent/bpl/POPL2023/sum-print.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:12:38,554 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:12:38,605 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 17:12:38,625 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:12:38,626 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:12:38,626 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:12:38,627 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:12:38,627 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:12:38,628 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:12:38,628 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:12:38,628 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:12:38,629 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:12:38,629 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:12:38,629 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:12:38,629 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:12:38,630 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:12:38,630 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:12:38,630 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:12:38,631 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:12:38,631 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:12:38,631 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:12:38,635 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:12:38,635 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:12:38,635 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:12:38,636 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:12:38,636 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:12:38,636 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:12:38,636 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:12:38,636 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:12:38,637 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:12:38,637 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:12:38,637 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:12:38,637 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:12:38,638 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:12:38,638 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:12:38,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:12:38,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:12:38,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:12:38,883 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:12:38,883 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:12:38,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum-print.bpl [2023-10-12 17:12:38,885 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum-print.bpl' [2023-10-12 17:12:38,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:12:38,903 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:12:38,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:38,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:12:38,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:12:38,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:38" (1/1) ... [2023-10-12 17:12:38,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:38" (1/1) ... [2023-10-12 17:12:38,930 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2023-10-12 17:12:38,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:38,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:12:38,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:12:38,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:12:38,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:38" (1/1) ... [2023-10-12 17:12:38,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:38" (1/1) ... [2023-10-12 17:12:38,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:38" (1/1) ... [2023-10-12 17:12:38,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:38" (1/1) ... [2023-10-12 17:12:38,943 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:38" (1/1) ... [2023-10-12 17:12:38,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:38" (1/1) ... [2023-10-12 17:12:38,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:38" (1/1) ... [2023-10-12 17:12:38,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:38" (1/1) ... [2023-10-12 17:12:38,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:12:38,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:12:38,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:12:38,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:12:38,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:38" (1/1) ... [2023-10-12 17:12:38,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:38,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:38,974 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 17:12:38,981 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 17:12:39,004 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:12:39,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:12:39,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:12:39,007 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2023-10-12 17:12:39,007 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2023-10-12 17:12:39,007 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2023-10-12 17:12:39,007 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2023-10-12 17:12:39,008 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2023-10-12 17:12:39,008 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2023-10-12 17:12:39,008 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T3 given in one single declaration [2023-10-12 17:12:39,008 INFO L130 BoogieDeclarations]: Found specification of procedure T3 [2023-10-12 17:12:39,009 INFO L138 BoogieDeclarations]: Found implementation of procedure T3 [2023-10-12 17:12:39,009 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 17:12:39,047 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:12:39,048 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:12:39,195 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:12:39,210 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:12:39,210 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-10-12 17:12:39,212 INFO L201 PluginConnector]: Adding new model sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:39 BoogieIcfgContainer [2023-10-12 17:12:39,212 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:12:39,213 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:12:39,213 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:12:39,215 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:12:39,216 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:39,216 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:38" (1/2) ... [2023-10-12 17:12:39,217 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@393f506b and model type sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:12:39, skipping insertion in model container [2023-10-12 17:12:39,217 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:39,217 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:39" (2/2) ... [2023-10-12 17:12:39,218 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum-print.bpl [2023-10-12 17:12:39,287 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:12:39,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 92 flow [2023-10-12 17:12:39,324 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2023-10-12 17:12:39,324 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:12:39,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 28 events. 3/28 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-10-12 17:12:39,327 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 34 transitions, 92 flow [2023-10-12 17:12:39,330 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 74 flow [2023-10-12 17:12:39,333 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:12:39,342 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 28 transitions, 74 flow [2023-10-12 17:12:39,344 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 28 transitions, 74 flow [2023-10-12 17:12:39,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 28 transitions, 74 flow [2023-10-12 17:12:39,349 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2023-10-12 17:12:39,350 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:12:39,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 28 events. 3/28 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-10-12 17:12:39,351 INFO L119 LiptonReduction]: Number of co-enabled transitions 250 [2023-10-12 17:12:39,646 INFO L134 LiptonReduction]: Checked pairs total: 204 [2023-10-12 17:12:39,647 INFO L136 LiptonReduction]: Total number of compositions: 11 [2023-10-12 17:12:39,666 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:12:39,666 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:12:39,667 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:12:39,667 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:12:39,667 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:12:39,667 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:12:39,667 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:12:39,667 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:12:39,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:12:39,696 INFO L131 ngComponentsAnalysis]: Automaton has 25 accepting balls. 25 [2023-10-12 17:12:39,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:39,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:39,701 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:12:39,701 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:39,701 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:12:39,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 42 states, but on-demand construction may add more states [2023-10-12 17:12:39,705 INFO L131 ngComponentsAnalysis]: Automaton has 25 accepting balls. 25 [2023-10-12 17:12:39,705 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:39,705 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:39,705 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:12:39,706 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:39,709 INFO L748 eck$LassoCheckResult]: Stem: 41#[$Ultimate##0]don't care [115] $Ultimate##0-->L65: Formula: (and (= v_x_18 0) (= v_y_16 0)) InVars {} OutVars{y=v_y_16, x=v_x_18} AuxVars[] AssignedVars[y, x] 44#[L65]don't care [100] L65-->L24: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_thidvar0] 46#[L65-1, L24]don't care [2023-10-12 17:12:39,709 INFO L750 eck$LassoCheckResult]: Loop: 46#[L65-1, L24]don't care [113] L24-->L24: Formula: (and (= v_y_13 (+ v_y_12 1)) (= v_x_14 (+ v_x_15 1))) InVars {y=v_y_13, x=v_x_15} OutVars{y=v_y_12, x=v_x_14} AuxVars[] AssignedVars[y, x] 46#[L65-1, L24]don't care [2023-10-12 17:12:39,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:39,712 INFO L85 PathProgramCache]: Analyzing trace with hash 4626, now seen corresponding path program 1 times [2023-10-12 17:12:39,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:39,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721075683] [2023-10-12 17:12:39,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:39,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:39,806 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:39,819 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:39,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:39,821 INFO L85 PathProgramCache]: Analyzing trace with hash 144, now seen corresponding path program 1 times [2023-10-12 17:12:39,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:39,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728926031] [2023-10-12 17:12:39,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:39,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:39,828 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:39,831 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:39,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:39,832 INFO L85 PathProgramCache]: Analyzing trace with hash 143519, now seen corresponding path program 1 times [2023-10-12 17:12:39,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:39,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781974776] [2023-10-12 17:12:39,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:39,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:39,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:39,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:39,879 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:39,879 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:39,879 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:39,879 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:39,880 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:12:39,880 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:39,880 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:39,880 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:39,880 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-print.bpl_BEv2_Iteration1_Loop [2023-10-12 17:12:39,880 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:39,880 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:39,891 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 17:12:39,899 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 17:12:39,923 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:39,923 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:12:39,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:39,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:39,931 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 17:12:39,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:39,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:39,945 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 17:12:39,959 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 17:12:39,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:39,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:39,960 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 17:12:39,961 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 17:12:39,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:12:39,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:39,983 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:12:39,984 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 17:12:40,005 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 17:12:40,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:40,007 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 17:12:40,010 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 17:12:40,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:40,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:40,044 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 [2023-10-12 17:12:40,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:40,046 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 17:12:40,047 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 17:12:40,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:12:40,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:40,078 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:12:40,078 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 17:12:40,081 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 17:12:40,095 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:40,095 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:40,095 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:40,095 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:40,095 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:12:40,095 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,096 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:40,096 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:40,096 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-print.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:12:40,096 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:40,096 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:40,097 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 17:12:40,099 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 17:12:40,102 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 17:12:40,138 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:40,138 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:12:40,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:40,151 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 17:12:40,152 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 17:12:40,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:40,154 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:40,173 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:12:40,173 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 17:12:40,178 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 17:12:40,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:40,187 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 17:12:40,188 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 17:12:40,190 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:40,190 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:40,212 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 17:12:40,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:40,213 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 17:12:40,214 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 17:12:40,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:12:40,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:40,245 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:12:40,246 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 17:12:40,265 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 17:12:40,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:40,267 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 17:12:40,269 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 17:12:40,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:40,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:40,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:40,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:40,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:40,286 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 17:12:40,288 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 17:12:40,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:12:40,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:40,312 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:12:40,313 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 17:12:40,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-10-12 17:12:40,335 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier1,QUANTIFIED] [2023-10-12 17:12:40,336 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier2,QUANTIFIED] [2023-10-12 17:12:40,336 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier3,QUANTIFIED] [2023-10-12 17:12:40,346 INFO L201 PluginConnector]: Adding new model sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:12:40 BoogieIcfgContainer [2023-10-12 17:12:40,346 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:12:40,347 INFO L158 Benchmark]: Toolchain (without parser) took 1444.12ms. Allocated memory was 190.8MB in the beginning and 295.7MB in the end (delta: 104.9MB). Free memory was 139.9MB in the beginning and 235.6MB in the end (delta: -95.7MB). Peak memory consumption was 8.6MB. Max. memory is 8.0GB. [2023-10-12 17:12:40,348 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.20ms. Allocated memory is still 190.8MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:12:40,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.32ms. Allocated memory is still 190.8MB. Free memory was 139.8MB in the beginning and 137.9MB in the end (delta: 1.9MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:12:40,353 INFO L158 Benchmark]: Boogie Preprocessor took 15.48ms. Allocated memory is still 190.8MB. Free memory was 137.9MB in the beginning and 136.9MB in the end (delta: 990.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:12:40,354 INFO L158 Benchmark]: RCFGBuilder took 263.20ms. Allocated memory is still 190.8MB. Free memory was 136.8MB in the beginning and 126.4MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-10-12 17:12:40,354 INFO L158 Benchmark]: BuchiAutomizer took 1133.05ms. Allocated memory was 190.8MB in the beginning and 295.7MB in the end (delta: 104.9MB). Free memory was 126.3MB in the beginning and 235.6MB in the end (delta: -109.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:12:40,357 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 0.20ms. Allocated memory is still 190.8MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.32ms. Allocated memory is still 190.8MB. Free memory was 139.8MB in the beginning and 137.9MB in the end (delta: 1.9MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.48ms. Allocated memory is still 190.8MB. Free memory was 137.9MB in the beginning and 136.9MB in the end (delta: 990.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 263.20ms. Allocated memory is still 190.8MB. Free memory was 136.8MB in the beginning and 126.4MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 1133.05ms. Allocated memory was 190.8MB in the beginning and 295.7MB in the end (delta: 104.9MB). Free memory was 126.3MB in the beginning and 235.6MB in the end (delta: -109.3MB). There was no memory consumed. 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:1. 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: 0.3s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 24]: Nontermination argument in form of an infinite program execution. [2023-10-12 17:12:40,370 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier4,QUANTIFIED] [2023-10-12 17:12:40,371 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier5,QUANTIFIED] [2023-10-12 17:12:40,371 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier6,QUANTIFIED] [2023-10-12 17:12:40,371 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier7,QUANTIFIED] [2023-10-12 17:12:40,371 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier8,QUANTIFIED] [2023-10-12 17:12:40,371 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: 24]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L62] 0 x := 0; [L63] 0 y := 0; [L65] FORK 0 fork 1 T1(); Loop: [L25] x := x + 1; [L26] y := y - 1; End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 35 PlacesBefore, 24 PlacesAfterwards, 28 TransitionsBefore, 17 TransitionsAfterwards, 250 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 204 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 190, independent: 188, independent conditional: 0, independent unconditional: 188, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 141, independent: 139, independent conditional: 0, independent unconditional: 139, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 141, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 23, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 190, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 141, unknown conditional: 0, unknown unconditional: 141] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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 17:12:40,390 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...