/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2023/sum-print.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-?-9ecb849-m [2024-02-09 23:54:03,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-09 23:54:03,767 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2024-02-09 23:54:03,797 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-09 23:54:03,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-09 23:54:03,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.Only consider context switches at boundaries of atomic blocks [2024-02-09 23:54:03,827 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-09 23:54:03,828 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-09 23:54:03,828 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-09 23:54:03,832 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-09 23:54:03,832 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-09 23:54:03,832 INFO L153 SettingsManager]: * Use SBE=true [2024-02-09 23:54:03,832 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-02-09 23:54:03,833 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-02-09 23:54:03,833 INFO L153 SettingsManager]: * Use old map elimination=false [2024-02-09 23:54:03,833 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-02-09 23:54:03,833 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-02-09 23:54:03,834 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-02-09 23:54:03,834 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-09 23:54:03,834 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-02-09 23:54:03,834 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-09 23:54:03,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-09 23:54:03,835 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-09 23:54:03,835 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-09 23:54:03,835 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-02-09 23:54:03,835 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-02-09 23:54:03,835 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-02-09 23:54:03,835 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-02-09 23:54:03,836 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-09 23:54:03,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-09 23:54:03,836 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-02-09 23:54:03,837 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-09 23:54:03,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-09 23:54:03,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-09 23:54:03,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-09 23:54:03,837 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-09 23:54:03,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-09 23:54:03,837 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-02-09 23:54:03,838 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2024-02-09 23:54:04,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-09 23:54:04,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-09 23:54:04,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-09 23:54:04,122 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-02-09 23:54:04,123 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-02-09 23:54:04,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum-print.bpl [2024-02-09 23:54:04,124 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum-print.bpl' [2024-02-09 23:54:04,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-09 23:54:04,142 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-02-09 23:54:04,143 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-09 23:54:04,143 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-09 23:54:04,143 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-09 23:54:04,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:04" (1/1) ... [2024-02-09 23:54:04,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:04" (1/1) ... [2024-02-09 23:54:04,200 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2024-02-09 23:54:04,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-09 23:54:04,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-09 23:54:04,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-09 23:54:04,204 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-09 23:54:04,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:04" (1/1) ... [2024-02-09 23:54:04,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:04" (1/1) ... [2024-02-09 23:54:04,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:04" (1/1) ... [2024-02-09 23:54:04,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:04" (1/1) ... [2024-02-09 23:54:04,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:04" (1/1) ... [2024-02-09 23:54:04,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:04" (1/1) ... [2024-02-09 23:54:04,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:04" (1/1) ... [2024-02-09 23:54:04,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:04" (1/1) ... [2024-02-09 23:54:04,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-09 23:54:04,245 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-09 23:54:04,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-09 23:54:04,245 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-09 23:54:04,247 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:04" (1/1) ... [2024-02-09 23:54:04,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:04,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:04,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:04,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-02-09 23:54:04,314 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-02-09 23:54:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-09 23:54:04,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-09 23:54:04,315 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2024-02-09 23:54:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2024-02-09 23:54:04,315 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2024-02-09 23:54:04,315 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2024-02-09 23:54:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2024-02-09 23:54:04,315 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2024-02-09 23:54:04,316 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T3 given in one single declaration [2024-02-09 23:54:04,316 INFO L130 BoogieDeclarations]: Found specification of procedure T3 [2024-02-09 23:54:04,316 INFO L138 BoogieDeclarations]: Found implementation of procedure T3 [2024-02-09 23:54:04,316 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-09 23:54:04,354 INFO L236 CfgBuilder]: Building ICFG [2024-02-09 23:54:04,355 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-09 23:54:04,436 INFO L277 CfgBuilder]: Performing block encoding [2024-02-09 23:54:04,468 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-09 23:54:04,468 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2024-02-09 23:54:04,470 INFO L201 PluginConnector]: Adding new model sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:54:04 BoogieIcfgContainer [2024-02-09 23:54:04,470 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-09 23:54:04,471 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-02-09 23:54:04,471 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-02-09 23:54:04,484 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-02-09 23:54:04,484 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:54:04,484 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:04" (1/2) ... [2024-02-09 23:54:04,486 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c6b713d and model type sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.02 11:54:04, skipping insertion in model container [2024-02-09 23:54:04,486 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:54:04,486 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:54:04" (2/2) ... [2024-02-09 23:54:04,487 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum-print.bpl [2024-02-09 23:54:04,534 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-02-09 23:54:04,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 89 flow [2024-02-09 23:54:04,575 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2024-02-09 23:54:04,576 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-09 23:54:04,579 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. [2024-02-09 23:54:04,580 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 34 transitions, 89 flow [2024-02-09 23:54:04,584 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 74 flow [2024-02-09 23:54:04,589 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2024-02-09 23:54:04,589 INFO L304 stractBuchiCegarLoop]: Hoare is false [2024-02-09 23:54:04,590 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-02-09 23:54:04,590 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-02-09 23:54:04,590 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-02-09 23:54:04,590 INFO L308 stractBuchiCegarLoop]: Difference is false [2024-02-09 23:54:04,590 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-02-09 23:54:04,590 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2024-02-09 23:54:04,591 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 35 places, 28 transitions, 74 flow [2024-02-09 23:54:04,595 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-09 23:54:04,595 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-02-09 23:54:04,595 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-09 23:54:04,595 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-09 23:54:04,597 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-02-09 23:54:04,598 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 35 places, 28 transitions, 74 flow [2024-02-09 23:54:04,599 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-09 23:54:04,599 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-02-09 23:54:04,599 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-09 23:54:04,599 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-09 23:54:04,603 INFO L748 eck$LassoCheckResult]: Stem: 42#[$Ultimate##0]true [75] $Ultimate##0-->L63: Formula: (= v_x_1 0) InVars {} OutVars{x=v_x_1} AuxVars[] AssignedVars[x] 44#[L63]true [54] L63-->L65: Formula: (= v_y_1 0) InVars {} OutVars{y=v_y_1} AuxVars[] AssignedVars[y] 46#[L65]true [100] L65-->L24: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_thidvar0] 48#[L24, L65-1]true [2024-02-09 23:54:04,603 INFO L750 eck$LassoCheckResult]: Loop: 48#[L24, L65-1]true [82] L24-->L26: Formula: (= (+ v_x_5 1) v_x_4) InVars {x=v_x_5} OutVars{x=v_x_4} AuxVars[] AssignedVars[x] 51#[L26, L65-1]true [83] L26-->L24: Formula: (= (+ v_y_4 1) v_y_5) InVars {y=v_y_5} OutVars{y=v_y_4} AuxVars[] AssignedVars[y] 48#[L24, L65-1]true [2024-02-09 23:54:04,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:54:04,608 INFO L85 PathProgramCache]: Analyzing trace with hash 103640, now seen corresponding path program 1 times [2024-02-09 23:54:04,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:54:04,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185202828] [2024-02-09 23:54:04,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:54:04,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:54:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:54:04,671 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:54:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:54:04,685 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:54:04,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:54:04,688 INFO L85 PathProgramCache]: Analyzing trace with hash 3586, now seen corresponding path program 1 times [2024-02-09 23:54:04,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:54:04,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249337948] [2024-02-09 23:54:04,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:54:04,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:54:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:54:04,696 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:54:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:54:04,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:54:04,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:54:04,700 INFO L85 PathProgramCache]: Analyzing trace with hash 99600665, now seen corresponding path program 1 times [2024-02-09 23:54:04,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:54:04,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209305604] [2024-02-09 23:54:04,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:54:04,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:54:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:54:04,706 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:54:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:54:04,710 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:54:04,750 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:54:04,751 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:54:04,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:54:04,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:54:04,751 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 23:54:04,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:04,751 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:54:04,751 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:54:04,752 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-print.bpl_BEv2_Iteration1_Loop [2024-02-09 23:54:04,752 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:54:04,752 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:54:04,763 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:54:04,771 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:54:04,807 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:54:04,808 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 23:54:04,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:04,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:04,820 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:04,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-02-09 23:54:04,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 23:54:04,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:04,836 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2024-02-09 23:54:04,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-02-09 23:54:04,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:04,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:04,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:04,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-02-09 23:54:04,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 23:54:04,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:04,875 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 23:54:04,875 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y=0} Honda state: {y=0} Generalized eigenvectors: [{y=4}, {y=3}, {y=-8}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-02-09 23:54:04,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-02-09 23:54:04,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:04,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:04,882 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:04,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-02-09 23:54:04,886 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 23:54:04,886 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:04,913 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 [2024-02-09 23:54:04,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:04,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:04,915 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:04,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-02-09 23:54:04,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 23:54:04,918 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:04,957 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 23:54:04,957 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x=0} Honda state: {x=0} Generalized eigenvectors: [{x=2}, {x=5}, {x=-6}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-02-09 23:54:04,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-02-09 23:54:04,987 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:54:04,987 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:54:04,988 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:54:04,988 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:54:04,988 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 23:54:04,988 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:04,988 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:54:04,988 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:54:04,988 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-print.bpl_BEv2_Iteration1_Lasso [2024-02-09 23:54:04,988 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:54:04,988 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:54:04,989 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:54:04,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:54:04,996 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:54:05,043 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:54:05,044 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 23:54:05,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:05,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:05,055 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:05,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-02-09 23:54:05,058 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 23:54:05,058 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:05,076 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 23:54:05,076 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {T1Thread1of1ForFork0_thidvar0=0} Honda state: {T1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-02-09 23:54:05,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-02-09 23:54:05,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:05,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:05,082 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:05,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-02-09 23:54:05,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 23:54:05,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:05,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-02-09 23:54:05,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:05,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:05,101 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:05,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-02-09 23:54:05,104 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 23:54:05,104 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:05,137 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 23:54:05,137 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x=0} Honda state: {x=0} Generalized eigenvectors: [{x=2}, {x=5}, {x=-6}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-02-09 23:54:05,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-02-09 23:54:05,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:05,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:05,142 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:05,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-02-09 23:54:05,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 23:54:05,146 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:05,161 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 [2024-02-09 23:54:05,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:05,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:05,163 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:05,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 23:54:05,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:05,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-02-09 23:54:05,186 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 23:54:05,186 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y=0} Honda state: {y=0} Generalized eigenvectors: [{y=4}, {y=3}, {y=-8}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-02-09 23:54:05,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-02-09 23:54:05,213 INFO L201 PluginConnector]: Adding new model sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.02 11:54:05 BoogieIcfgContainer [2024-02-09 23:54:05,213 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-02-09 23:54:05,214 INFO L158 Benchmark]: Toolchain (without parser) took 1071.76ms. Allocated memory was 175.1MB in the beginning and 321.9MB in the end (delta: 146.8MB). Free memory was 135.3MB in the beginning and 241.8MB in the end (delta: -106.6MB). Peak memory consumption was 38.9MB. Max. memory is 8.0GB. [2024-02-09 23:54:05,215 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 175.1MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 8.0GB. [2024-02-09 23:54:05,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.46ms. Allocated memory was 175.1MB in the beginning and 321.9MB in the end (delta: 146.8MB). Free memory was 135.3MB in the beginning and 293.7MB in the end (delta: -158.5MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2024-02-09 23:54:05,215 INFO L158 Benchmark]: Boogie Preprocessor took 41.45ms. Allocated memory is still 321.9MB. Free memory was 293.7MB in the beginning and 292.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2024-02-09 23:54:05,229 INFO L158 Benchmark]: RCFGBuilder took 224.57ms. Allocated memory is still 321.9MB. Free memory was 292.7MB in the beginning and 281.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2024-02-09 23:54:05,229 INFO L158 Benchmark]: BuchiAutomizer took 742.68ms. Allocated memory is still 321.9MB. Free memory was 281.5MB in the beginning and 241.8MB in the end (delta: 39.7MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2024-02-09 23:54:05,231 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 0.11ms. Allocated memory is still 175.1MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.46ms. Allocated memory was 175.1MB in the beginning and 321.9MB in the end (delta: 146.8MB). Free memory was 135.3MB in the beginning and 293.7MB in the end (delta: -158.5MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.45ms. Allocated memory is still 321.9MB. Free memory was 293.7MB in the beginning and 292.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 224.57ms. Allocated memory is still 321.9MB. Free memory was 292.7MB in the beginning and 281.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 742.68ms. Allocated memory is still 321.9MB. Free memory was 281.5MB in the beginning and 241.8MB in the end (delta: 39.7MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 1 iterations. TraceHistogramMax:0. Analysis of lassos took 0.5s. 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: 0.0s - 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. 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. RESULT: Ultimate proved your program to be incorrect! [2024-02-09 23:54:05,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...