/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/regression/fork_unchanged_local_variables2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:18:02,913 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:18:02,954 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 17:18:02,978 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:18:02,979 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:18:02,979 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:18:02,980 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:18:02,980 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:18:02,980 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:18:02,981 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:18:02,981 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:18:02,981 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:18:02,981 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:18:02,982 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:18:02,982 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:18:02,982 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:18:02,982 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:18:02,983 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:18:02,983 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:18:02,983 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:18:02,983 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:18:02,986 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:18:02,986 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:18:02,987 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:18:02,989 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:18:02,989 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:18:02,989 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:18:02,990 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:18:02,990 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:18:02,990 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:18:02,991 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:18:02,991 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:18:02,991 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:18:02,992 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:18:02,992 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:18:03,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:18:03,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:18:03,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:18:03,210 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:18:03,213 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:18:03,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_unchanged_local_variables2.bpl [2023-10-12 17:18:03,214 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_unchanged_local_variables2.bpl' [2023-10-12 17:18:03,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:18:03,233 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:18:03,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:18:03,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:18:03,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:18:03,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:03" (1/1) ... [2023-10-12 17:18:03,249 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:03" (1/1) ... [2023-10-12 17:18:03,253 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:18:03,254 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:18:03,256 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:18:03,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:18:03,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:18:03,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:03" (1/1) ... [2023-10-12 17:18:03,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:03" (1/1) ... [2023-10-12 17:18:03,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:03" (1/1) ... [2023-10-12 17:18:03,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:03" (1/1) ... [2023-10-12 17:18:03,266 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:03" (1/1) ... [2023-10-12 17:18:03,268 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:03" (1/1) ... [2023-10-12 17:18:03,268 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:03" (1/1) ... [2023-10-12 17:18:03,269 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:03" (1/1) ... [2023-10-12 17:18:03,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:18:03,271 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:18:03,271 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:18:03,272 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:18:03,272 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:03" (1/1) ... [2023-10-12 17:18:03,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:18:03,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:18:03,299 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 17:18:03,302 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 17:18:03,322 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2023-10-12 17:18:03,323 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-10-12 17:18:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-10-12 17:18:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:18:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:18:03,327 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 17:18:03,361 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:18:03,363 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:18:03,446 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:18:03,457 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:18:03,458 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:18:03,459 INFO L201 PluginConnector]: Adding new model fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:18:03 BoogieIcfgContainer [2023-10-12 17:18:03,459 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:18:03,462 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:18:03,462 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:18:03,465 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:18:03,466 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:18:03,466 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:03" (1/2) ... [2023-10-12 17:18:03,467 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e6476bf and model type fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:18:03, skipping insertion in model container [2023-10-12 17:18:03,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:18:03,467 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:18:03" (2/2) ... [2023-10-12 17:18:03,472 INFO L332 chiAutomizerObserver]: Analyzing ICFG fork_unchanged_local_variables2.bpl [2023-10-12 17:18:03,537 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-10-12 17:18:03,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 18 places, 17 transitions, 42 flow [2023-10-12 17:18:03,587 INFO L124 PetriNetUnfolderBase]: 2/15 cut-off events. [2023-10-12 17:18:03,588 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:18:03,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 15 events. 2/15 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 5. Up to 2 conditions per place. [2023-10-12 17:18:03,591 INFO L82 GeneralOperation]: Start removeDead. Operand has 18 places, 17 transitions, 42 flow [2023-10-12 17:18:03,593 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 17 places, 15 transitions, 36 flow [2023-10-12 17:18:03,595 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:18:03,604 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 15 transitions, 36 flow [2023-10-12 17:18:03,606 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 15 transitions, 36 flow [2023-10-12 17:18:03,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 17 places, 15 transitions, 36 flow [2023-10-12 17:18:03,609 INFO L124 PetriNetUnfolderBase]: 2/15 cut-off events. [2023-10-12 17:18:03,609 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:18:03,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 15 events. 2/15 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 5. Up to 2 conditions per place. [2023-10-12 17:18:03,609 INFO L119 LiptonReduction]: Number of co-enabled transitions 4 [2023-10-12 17:18:03,755 INFO L134 LiptonReduction]: Checked pairs total: 8 [2023-10-12 17:18:03,755 INFO L136 LiptonReduction]: Total number of compositions: 8 [2023-10-12 17:18:03,764 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:18:03,764 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:18:03,764 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:18:03,764 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:18:03,765 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:18:03,765 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:18:03,765 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:18:03,765 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:18:03,765 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 places, 9 transitions, 24 flow [2023-10-12 17:18:03,769 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:18:03,769 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2023-10-12 17:18:03,769 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:18:03,769 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:18:03,771 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:18:03,771 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 places, 9 transitions, 24 flow [2023-10-12 17:18:03,774 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:18:03,774 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2023-10-12 17:18:03,774 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:18:03,774 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:18:03,777 INFO L748 eck$LassoCheckResult]: Stem: 22#[$Ultimate##0]true [47] $Ultimate##0-->L20-1: Formula: (and (= v_ULTIMATE.start_x_20 0) (= v_ULTIMATE.start_res_11 0)) InVars {} OutVars{ULTIMATE.start_x=v_ULTIMATE.start_x_20, ULTIMATE.start_res=v_ULTIMATE.start_res_11} AuxVars[] AssignedVars[ULTIMATE.start_x, ULTIMATE.start_res] 24#[L20-1]true [2023-10-12 17:18:03,778 INFO L750 eck$LassoCheckResult]: Loop: 24#[L20-1]true [35] L20-1-->L21: Formula: (< v_ULTIMATE.start_x_2 3) InVars {ULTIMATE.start_x=v_ULTIMATE.start_x_2} OutVars{ULTIMATE.start_x=v_ULTIMATE.start_x_2} AuxVars[] AssignedVars[] 27#[L21]true [42] L21-->$Ultimate##0: Formula: (= v_fooThread1of1ForFork0_thidvar0_2 v_ULTIMATE.start_x_9) InVars {ULTIMATE.start_x=v_ULTIMATE.start_x_9} OutVars{fooThread1of1ForFork0_thidvar0=v_fooThread1of1ForFork0_thidvar0_2, fooThread1of1ForFork0_y=v_fooThread1of1ForFork0_y_4, ULTIMATE.start_x=v_ULTIMATE.start_x_9, fooThread1of1ForFork0_res=v_fooThread1of1ForFork0_res_4} AuxVars[] AssignedVars[fooThread1of1ForFork0_thidvar0, fooThread1of1ForFork0_y, fooThread1of1ForFork0_res] 29#[$Ultimate##0, L21-1]true [36] L21-1-->L23: Formula: (= v_ULTIMATE.start_resOld_1 v_ULTIMATE.start_res_2) InVars {ULTIMATE.start_res=v_ULTIMATE.start_res_2} OutVars{ULTIMATE.start_resOld=v_ULTIMATE.start_resOld_1, ULTIMATE.start_res=v_ULTIMATE.start_res_2} AuxVars[] AssignedVars[ULTIMATE.start_resOld] 31#[L23, $Ultimate##0]true [49] $Ultimate##0-->fooEXIT: Formula: (= v_fooThread1of1ForFork0_y_5 v_fooThread1of1ForFork0_res_7) InVars {fooThread1of1ForFork0_y=v_fooThread1of1ForFork0_y_5} OutVars{fooThread1of1ForFork0_y=v_fooThread1of1ForFork0_y_5, fooThread1of1ForFork0_res=v_fooThread1of1ForFork0_res_7} AuxVars[] AssignedVars[fooThread1of1ForFork0_res] 33#[fooEXIT, L23]true [43] fooEXIT-->L23-1: Formula: (and (= v_fooThread1of1ForFork0_res_6 v_ULTIMATE.start_res_6) (= v_fooThread1of1ForFork0_thidvar0_4 v_ULTIMATE.start_x_11)) InVars {fooThread1of1ForFork0_thidvar0=v_fooThread1of1ForFork0_thidvar0_4, ULTIMATE.start_x=v_ULTIMATE.start_x_11, fooThread1of1ForFork0_res=v_fooThread1of1ForFork0_res_6} OutVars{fooThread1of1ForFork0_thidvar0=v_fooThread1of1ForFork0_thidvar0_4, ULTIMATE.start_x=v_ULTIMATE.start_x_11, ULTIMATE.start_res=v_ULTIMATE.start_res_6, fooThread1of1ForFork0_res=v_fooThread1of1ForFork0_res_6} AuxVars[] AssignedVars[ULTIMATE.start_res] 35#[L23-1]true [51] L23-1-->L20-1: Formula: (let ((.cse0 (= v_ULTIMATE.start_x_Out_2 (+ v_ULTIMATE.start_x_In_1 1)))) (or (and .cse0 (<= v_ULTIMATE.start_x_In_1 0)) (and .cse0 (< 0 v_ULTIMATE.start_x_In_1) (= v_ULTIMATE.start_resOld_In_1 v_ULTIMATE.start_res_In_1)))) InVars {ULTIMATE.start_x=v_ULTIMATE.start_x_In_1, ULTIMATE.start_resOld=v_ULTIMATE.start_resOld_In_1, ULTIMATE.start_res=v_ULTIMATE.start_res_In_1} OutVars{ULTIMATE.start_x=v_ULTIMATE.start_x_Out_2, ULTIMATE.start_resOld=v_ULTIMATE.start_resOld_In_1, ULTIMATE.start_res=v_ULTIMATE.start_res_In_1} AuxVars[] AssignedVars[ULTIMATE.start_x] 24#[L20-1]true [2023-10-12 17:18:03,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:18:03,782 INFO L85 PathProgramCache]: Analyzing trace with hash 78, now seen corresponding path program 1 times [2023-10-12 17:18:03,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:18:03,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059797099] [2023-10-12 17:18:03,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:18:03,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:18:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:18:03,854 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:18:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:18:03,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:18:03,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:18:03,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1929432797, now seen corresponding path program 1 times [2023-10-12 17:18:03,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:18:03,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004830077] [2023-10-12 17:18:03,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:18:03,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:18:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:18:03,875 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:18:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:18:03,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:18:03,883 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:18:03,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1547739498, now seen corresponding path program 1 times [2023-10-12 17:18:03,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:18:03,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134746132] [2023-10-12 17:18:03,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:18:03,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:18:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:18:03,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:18:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:18:03,902 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:18:04,026 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:18:04,027 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:18:04,027 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:18:04,027 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:18:04,027 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:18:04,027 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:18:04,028 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:18:04,028 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:18:04,028 INFO L133 ssoRankerPreferences]: Filename of dumped script: fork_unchanged_local_variables2.bpl_BEv2_Iteration1_Loop [2023-10-12 17:18:04,028 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:18:04,028 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:18:04,039 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 17:18:04,212 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:18:04,213 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:18:04,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:18:04,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:18:04,217 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 17:18:04,218 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 17:18:04,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:18:04,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:18:04,264 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 17:18:04,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:18:04,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:18:04,267 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 17:18:04,269 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 17:18:04,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:18:04,270 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:18:04,305 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:18:04,311 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 17:18:04,311 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:18:04,311 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:18:04,311 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:18:04,311 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:18:04,311 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:18:04,311 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:18:04,311 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:18:04,311 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:18:04,312 INFO L133 ssoRankerPreferences]: Filename of dumped script: fork_unchanged_local_variables2.bpl_BEv2_Iteration1_Loop [2023-10-12 17:18:04,312 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:18:04,312 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:18:04,313 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 17:18:04,478 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:18:04,481 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:18:04,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:18:04,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:18:04,483 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 17:18:04,485 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 17:18:04,486 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:18:04,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:18:04,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:18:04,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:18:04,494 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-10-12 17:18:04,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:18:04,501 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-10-12 17:18:04,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:18:04,528 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:18:04,533 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:18:04,534 INFO L444 ModelExtractionUtils]: 5 out of 8 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:18:04,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:18:04,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:18:04,569 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 17:18:04,571 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 17:18:04,585 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:18:04,586 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:18:04,586 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:18:04,586 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_x) = -2*ULTIMATE.start_x + 5 Supporting invariants [] [2023-10-12 17:18:04,589 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 17:18:04,591 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:18:04,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:18:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:18:04,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:18:04,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:18:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:18:04,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:18:04,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:18:04,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:18:04,698 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:18:04,699 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:18:04,775 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 8 states and 211 transitions. [2023-10-12 17:18:04,776 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:18:04,780 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:18:04,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:18:04,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:18:04,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2023-10-12 17:18:04,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 119 transitions. Stem has 1 letters. Loop has 6 letters. [2023-10-12 17:18:04,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:18:04,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 119 transitions. Stem has 7 letters. Loop has 6 letters. [2023-10-12 17:18:04,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:18:04,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 119 transitions. Stem has 1 letters. Loop has 12 letters. [2023-10-12 17:18:04,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:18:04,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 152 transitions, 716 flow [2023-10-12 17:18:04,801 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2023-10-12 17:18:04,802 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:18:04,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 20 events. 3/20 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 1 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 8. Up to 8 conditions per place. [2023-10-12 17:18:04,805 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 28 places, 152 transitions, 716 flow [2023-10-12 17:18:04,811 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 28 places, 152 transitions, 716 flow [2023-10-12 17:18:04,814 INFO L430 stractBuchiCegarLoop]: Abstraction has has 28 places, 152 transitions, 716 flow [2023-10-12 17:18:04,814 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:18:04,815 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 152 transitions, 716 flow [2023-10-12 17:18:04,819 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2023-10-12 17:18:04,820 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:18:04,820 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:18:04,824 INFO L201 PluginConnector]: Adding new model fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:18:04 BoogieIcfgContainer [2023-10-12 17:18:04,824 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:18:04,825 INFO L158 Benchmark]: Toolchain (without parser) took 1591.46ms. Allocated memory is still 191.9MB. Free memory was 148.8MB in the beginning and 136.6MB in the end (delta: 12.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-10-12 17:18:04,825 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.24ms. Allocated memory is still 191.9MB. Free memory is still 149.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:18:04,826 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.15ms. Allocated memory is still 191.9MB. Free memory was 148.7MB in the beginning and 147.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:18:04,826 INFO L158 Benchmark]: Boogie Preprocessor took 13.88ms. Allocated memory is still 191.9MB. Free memory was 147.2MB in the beginning and 146.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:18:04,827 INFO L158 Benchmark]: RCFGBuilder took 188.26ms. Allocated memory is still 191.9MB. Free memory was 146.2MB in the beginning and 137.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-10-12 17:18:04,827 INFO L158 Benchmark]: BuchiAutomizer took 1362.59ms. Allocated memory is still 191.9MB. Free memory was 137.6MB in the beginning and 136.6MB in the end (delta: 967.2kB). Peak memory consumption was 2.0MB. Max. memory is 8.0GB. [2023-10-12 17:18:04,828 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 0.24ms. Allocated memory is still 191.9MB. Free memory is still 149.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.15ms. Allocated memory is still 191.9MB. Free memory was 148.7MB in the beginning and 147.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.88ms. Allocated memory is still 191.9MB. Free memory was 147.2MB in the beginning and 146.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 188.26ms. Allocated memory is still 191.9MB. Free memory was 146.2MB in the beginning and 137.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1362.59ms. Allocated memory is still 191.9MB. Free memory was 137.6MB in the beginning and 136.6MB in the end (delta: 967.2kB). Peak memory consumption was 2.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 5 + -2 * x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:0. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 57 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 35 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital36 mio100 ax100 hnf100 lsp80 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf90 smp100 dnf174 smp96 tf102 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 104ms VariablesStem: 0 VariablesLoop: 8 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 17 PlacesBefore, 12 PlacesAfterwards, 15 TransitionsBefore, 9 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 2 FixpointIterations, 5 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 8 TotalNumberOfCompositions, 8 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, 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 correct! [2023-10-12 17:18:04,844 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 17:18:05,043 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...