/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 RABIN_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/array-int-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:37:51,162 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:37:51,215 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 17:37:51,237 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:37:51,238 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:37:51,238 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:37:51,239 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:37:51,239 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:37:51,239 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:37:51,240 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:37:51,240 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:37:51,240 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:37:51,240 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:37:51,245 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:37:51,245 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:37:51,245 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:37:51,246 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:37:51,247 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:37:51,247 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:37:51,247 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:37:51,247 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:37:51,248 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:37:51,249 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:37:51,249 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:37:51,249 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:37:51,249 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:37:51,249 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:37:51,249 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:37:51,249 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:37:51,250 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:37:51,250 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:37:51,250 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:37:51,251 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:37:51,252 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:37:51,252 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> RABIN_PETRI_NET [2023-10-12 17:37:51,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:37:51,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:37:51,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:37:51,417 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:37:51,418 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:37:51,419 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/array-int-symm.wvr.bpl [2023-10-12 17:37:51,419 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/array-int-symm.wvr.bpl' [2023-10-12 17:37:51,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:37:51,436 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:37:51,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:37:51,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:37:51,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:37:51,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:51" (1/1) ... [2023-10-12 17:37:51,449 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:51" (1/1) ... [2023-10-12 17:37:51,453 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:37:51,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:37:51,455 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:37:51,455 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:37:51,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:37:51,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:51" (1/1) ... [2023-10-12 17:37:51,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:51" (1/1) ... [2023-10-12 17:37:51,467 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:51" (1/1) ... [2023-10-12 17:37:51,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:51" (1/1) ... [2023-10-12 17:37:51,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:51" (1/1) ... [2023-10-12 17:37:51,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:51" (1/1) ... [2023-10-12 17:37:51,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:51" (1/1) ... [2023-10-12 17:37:51,477 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:51" (1/1) ... [2023-10-12 17:37:51,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:37:51,480 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:37:51,480 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:37:51,480 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:37:51,481 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:51" (1/1) ... [2023-10-12 17:37:51,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:51,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:51,501 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 17:37:51,513 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 17:37:51,533 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:37:51,533 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:37:51,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:37:51,534 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:37:51,534 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:37:51,534 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:37:51,534 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:37:51,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:37:51,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:37:51,535 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 17:37:51,574 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:37:51,578 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:37:51,764 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:37:51,830 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:37:51,831 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-10-12 17:37:51,831 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2023-10-12 17:37:51,831 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2023-10-12 17:37:51,843 INFO L201 PluginConnector]: Adding new model array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:37:51 BoogieIcfgContainer [2023-10-12 17:37:51,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:37:51,844 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:37:51,844 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:37:51,856 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:37:51,856 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:37:51,856 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:51" (1/2) ... [2023-10-12 17:37:51,857 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ade75de and model type array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:37:51, skipping insertion in model container [2023-10-12 17:37:51,857 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:37:51,857 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:37:51" (2/2) ... [2023-10-12 17:37:51,858 INFO L332 chiAutomizerObserver]: Analyzing ICFG array-int-symm.wvr.bpl [2023-10-12 17:37:51,935 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-10-12 17:37:51,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 21 places, 18 transitions, 52 flow [2023-10-12 17:37:51,992 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2023-10-12 17:37:51,992 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:37:51,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 14 events. 2/14 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 9. Up to 2 conditions per place. [2023-10-12 17:37:51,999 INFO L82 GeneralOperation]: Start removeDead. Operand has 21 places, 18 transitions, 52 flow [2023-10-12 17:37:52,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 14 transitions, 40 flow [2023-10-12 17:37:52,004 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:37:52,023 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 14 transitions, 40 flow [2023-10-12 17:37:52,025 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 14 transitions, 40 flow [2023-10-12 17:37:52,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 19 places, 14 transitions, 40 flow [2023-10-12 17:37:52,039 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2023-10-12 17:37:52,039 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:37:52,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 14 events. 2/14 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 9. Up to 2 conditions per place. [2023-10-12 17:37:52,040 INFO L119 LiptonReduction]: Number of co-enabled transitions 30 [2023-10-12 17:37:52,078 INFO L134 LiptonReduction]: Checked pairs total: 24 [2023-10-12 17:37:52,078 INFO L136 LiptonReduction]: Total number of compositions: 3 [2023-10-12 17:37:52,088 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:37:52,088 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:37:52,088 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:37:52,088 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:37:52,088 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:37:52,088 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:37:52,088 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:37:52,089 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == RabinPetriNetCegarLoop ======== [2023-10-12 17:37:52,089 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 17 places, 12 transitions, 36 flow [2023-10-12 17:37:52,092 ERROR L47 etriNetUnfolderRabin]: [1:1A:[68] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][7], 3:2A:[60] $Ultimate##0-->L29: Formula: (and (not v_break_5_11) (= (+ v_result_6_9 v_len_3_17) v_len_1_17) (= v_i_4_14 0)) InVars {len_1=v_len_1_17, len_3=v_len_3_17} OutVars{break_5=v_break_5_11, i_4=v_i_4_14, len_1=v_len_1_17, result_6=v_result_6_9, len_3=v_len_3_17} AuxVars[] AssignedVars[break_5, i_4, result_6][1]][4:3A:[62] L29-->L29: Formula: (let ((.cse2 (select v_array_2_13 v_i_4_20)) (.cse1 (select v_array_0_13 v_i_4_20))) (let ((.cse0 (= .cse2 .cse1))) (and (< v_i_4_21 v_len_1_19) (= (+ v_i_4_21 1) v_i_4_20) (= v_result_6_15 (ite .cse0 v_result_6_16 (+ .cse1 (* (- 1) .cse2)))) (or (and (not .cse0) v_break_5_15) (and (not v_break_5_15) .cse0)) (< v_i_4_21 v_len_3_19) (not v_break_5_16)))) InVars {break_5=v_break_5_16, i_4=v_i_4_21, len_1=v_len_1_19, array_2=v_array_2_13, result_6=v_result_6_16, len_3=v_len_3_19, array_0=v_array_0_13} OutVars{break_5=v_break_5_15, i_4=v_i_4_20, len_1=v_len_1_19, array_2=v_array_2_13, result_6=v_result_6_15, len_3=v_len_3_19, array_0=v_array_0_13} AuxVars[] AssignedVars[break_5, i_4, result_6][6]] [2023-10-12 17:37:52,093 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:37:52,093 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:37:52,093 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:37:52,094 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:37:52,096 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:37:52,096 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 17 places, 12 transitions, 36 flow [2023-10-12 17:37:52,097 ERROR L47 etriNetUnfolderRabin]: [1:1A:[68] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][7], 3:2A:[60] $Ultimate##0-->L29: Formula: (and (not v_break_5_11) (= (+ v_result_6_9 v_len_3_17) v_len_1_17) (= v_i_4_14 0)) InVars {len_1=v_len_1_17, len_3=v_len_3_17} OutVars{break_5=v_break_5_11, i_4=v_i_4_14, len_1=v_len_1_17, result_6=v_result_6_9, len_3=v_len_3_17} AuxVars[] AssignedVars[break_5, i_4, result_6][1]][4:3A:[62] L29-->L29: Formula: (let ((.cse2 (select v_array_2_13 v_i_4_20)) (.cse1 (select v_array_0_13 v_i_4_20))) (let ((.cse0 (= .cse2 .cse1))) (and (< v_i_4_21 v_len_1_19) (= (+ v_i_4_21 1) v_i_4_20) (= v_result_6_15 (ite .cse0 v_result_6_16 (+ .cse1 (* (- 1) .cse2)))) (or (and (not .cse0) v_break_5_15) (and (not v_break_5_15) .cse0)) (< v_i_4_21 v_len_3_19) (not v_break_5_16)))) InVars {break_5=v_break_5_16, i_4=v_i_4_21, len_1=v_len_1_19, array_2=v_array_2_13, result_6=v_result_6_16, len_3=v_len_3_19, array_0=v_array_0_13} OutVars{break_5=v_break_5_15, i_4=v_i_4_20, len_1=v_len_1_19, array_2=v_array_2_13, result_6=v_result_6_15, len_3=v_len_3_19, array_0=v_array_0_13} AuxVars[] AssignedVars[break_5, i_4, result_6][6]] [2023-10-12 17:37:52,098 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:37:52,098 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:37:52,098 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:37:52,098 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:37:52,101 INFO L748 eck$LassoCheckResult]: Stem: 25#[$Ultimate##0]true [68] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 27#[L61, $Ultimate##0]true [60] $Ultimate##0-->L29: Formula: (and (not v_break_5_11) (= (+ v_result_6_9 v_len_3_17) v_len_1_17) (= v_i_4_14 0)) InVars {len_1=v_len_1_17, len_3=v_len_3_17} OutVars{break_5=v_break_5_11, i_4=v_i_4_14, len_1=v_len_1_17, result_6=v_result_6_9, len_3=v_len_3_17} AuxVars[] AssignedVars[break_5, i_4, result_6] 29#[L29, L61]true [2023-10-12 17:37:52,102 INFO L750 eck$LassoCheckResult]: Loop: 29#[L29, L61]true [62] L29-->L29: Formula: (let ((.cse2 (select v_array_2_13 v_i_4_20)) (.cse1 (select v_array_0_13 v_i_4_20))) (let ((.cse0 (= .cse2 .cse1))) (and (< v_i_4_21 v_len_1_19) (= (+ v_i_4_21 1) v_i_4_20) (= v_result_6_15 (ite .cse0 v_result_6_16 (+ .cse1 (* (- 1) .cse2)))) (or (and (not .cse0) v_break_5_15) (and (not v_break_5_15) .cse0)) (< v_i_4_21 v_len_3_19) (not v_break_5_16)))) InVars {break_5=v_break_5_16, i_4=v_i_4_21, len_1=v_len_1_19, array_2=v_array_2_13, result_6=v_result_6_16, len_3=v_len_3_19, array_0=v_array_0_13} OutVars{break_5=v_break_5_15, i_4=v_i_4_20, len_1=v_len_1_19, array_2=v_array_2_13, result_6=v_result_6_15, len_3=v_len_3_19, array_0=v_array_0_13} AuxVars[] AssignedVars[break_5, i_4, result_6] 29#[L29, L61]true [2023-10-12 17:37:52,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:52,106 INFO L85 PathProgramCache]: Analyzing trace with hash 3129, now seen corresponding path program 1 times [2023-10-12 17:37:52,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:52,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106512741] [2023-10-12 17:37:52,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:52,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:52,210 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:52,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:52,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:52,235 INFO L85 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 1 times [2023-10-12 17:37:52,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:52,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156411544] [2023-10-12 17:37:52,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:52,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:52,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:52,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:52,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:52,252 INFO L85 PathProgramCache]: Analyzing trace with hash 97061, now seen corresponding path program 1 times [2023-10-12 17:37:52,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:52,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865934814] [2023-10-12 17:37:52,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:52,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:52,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:52,272 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:52,436 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:52,436 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:52,437 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:52,437 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:52,437 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:37:52,437 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:52,437 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:52,437 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:52,437 INFO L133 ssoRankerPreferences]: Filename of dumped script: array-int-symm.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:37:52,437 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:52,437 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:52,450 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 17:37:52,542 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 17:37:52,742 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:52,744 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:37:52,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:52,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:52,773 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 17:37:52,775 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 17:37:52,776 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 17:37:52,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:52,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:52,798 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2023-10-12 17:37:52,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:52,851 INFO L401 nArgumentSynthesizer]: We have 30 Motzkin's Theorem applications. [2023-10-12 17:37:52,851 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2023-10-12 17:37:52,920 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:37:52,960 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2023-10-12 17:37:52,960 INFO L444 ModelExtractionUtils]: 48 out of 57 variables were initially zero. Simplification set additionally 6 variables to zero. [2023-10-12 17:37:52,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:52,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:52,979 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 17:37:53,009 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 17:37:53,010 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:37:53,028 INFO L438 nArgumentSynthesizer]: Removed 6 redundant supporting invariants from a total of 6. [2023-10-12 17:37:53,029 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:37:53,029 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(len_3, i_4) = 1*len_3 - 1*i_4 Supporting invariants [] [2023-10-12 17:37:53,035 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 17:37:53,038 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:37:53,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:53,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:37:53,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:53,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:37:53,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:53,073 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 17:37:53,093 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:37:53,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:37:53,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 17:37:53,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2023-10-12 17:37:53,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:37:53,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:53,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:37:53,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:53,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:37:53,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:53,138 INFO L430 stractBuchiCegarLoop]: Abstraction has has 22 places, 60 transitions, 300 flow [2023-10-12 17:37:53,138 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:37:53,138 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 22 places, 60 transitions, 300 flow [2023-10-12 17:37:53,140 ERROR L47 etriNetUnfolderRabin]: [1:1A:[68] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][36], 2:2A:[71] L61-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1][1], 7:3A:[63] $Ultimate##0-->L48: Formula: (and (= v_i_7_22 0) (not v_break_8_19) (= (+ v_result_9_11 v_len_1_23) v_len_3_23)) InVars {len_1=v_len_1_23, len_3=v_len_3_23} OutVars{result_9=v_result_9_11, i_7=v_i_7_22, len_1=v_len_1_23, break_8=v_break_8_19, len_3=v_len_3_23} AuxVars[] AssignedVars[result_9, i_7, break_8][21]][8:4A:[64] L48-->L48: Formula: (let ((.cse1 (select v_array_2_9 v_i_7_16)) (.cse2 (select v_array_0_9 v_i_7_16))) (let ((.cse0 (= .cse1 .cse2))) (and (not v_break_8_12) (= (+ v_i_7_17 1) v_i_7_16) (< v_i_7_17 v_len_1_13) (= v_result_9_5 (ite .cse0 v_result_9_6 (+ .cse1 (* (- 1) .cse2)))) (< v_i_7_17 v_len_3_13) (or (and (not .cse0) v_break_8_11) (and .cse0 (not v_break_8_11)))))) InVars {result_9=v_result_9_6, i_7=v_i_7_17, len_1=v_len_1_13, array_2=v_array_2_9, break_8=v_break_8_12, len_3=v_len_3_13, array_0=v_array_0_9} OutVars{result_9=v_result_9_5, i_7=v_i_7_16, len_1=v_len_1_13, array_2=v_array_2_9, break_8=v_break_8_11, len_3=v_len_3_13, array_0=v_array_0_9} AuxVars[] AssignedVars[result_9, i_7, break_8][41]] [2023-10-12 17:37:53,140 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:37:53,140 INFO L124 PetriNetUnfolderBase]: 2/7 cut-off events. [2023-10-12 17:37:53,140 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:37:53,140 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:37:53,141 INFO L748 eck$LassoCheckResult]: Stem: 25#[$Ultimate##0]true [68] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 27#[L61, $Ultimate##0]true [71] L61-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 64#[$Ultimate##0, L62, $Ultimate##0]true [63] $Ultimate##0-->L48: Formula: (and (= v_i_7_22 0) (not v_break_8_19) (= (+ v_result_9_11 v_len_1_23) v_len_3_23)) InVars {len_1=v_len_1_23, len_3=v_len_3_23} OutVars{result_9=v_result_9_11, i_7=v_i_7_22, len_1=v_len_1_23, break_8=v_break_8_19, len_3=v_len_3_23} AuxVars[] AssignedVars[result_9, i_7, break_8] 66#[L62, $Ultimate##0, L48]true [2023-10-12 17:37:53,141 INFO L750 eck$LassoCheckResult]: Loop: 66#[L62, $Ultimate##0, L48]true [64] L48-->L48: Formula: (let ((.cse1 (select v_array_2_9 v_i_7_16)) (.cse2 (select v_array_0_9 v_i_7_16))) (let ((.cse0 (= .cse1 .cse2))) (and (not v_break_8_12) (= (+ v_i_7_17 1) v_i_7_16) (< v_i_7_17 v_len_1_13) (= v_result_9_5 (ite .cse0 v_result_9_6 (+ .cse1 (* (- 1) .cse2)))) (< v_i_7_17 v_len_3_13) (or (and (not .cse0) v_break_8_11) (and .cse0 (not v_break_8_11)))))) InVars {result_9=v_result_9_6, i_7=v_i_7_17, len_1=v_len_1_13, array_2=v_array_2_9, break_8=v_break_8_12, len_3=v_len_3_13, array_0=v_array_0_9} OutVars{result_9=v_result_9_5, i_7=v_i_7_16, len_1=v_len_1_13, array_2=v_array_2_9, break_8=v_break_8_11, len_3=v_len_3_13, array_0=v_array_0_9} AuxVars[] AssignedVars[result_9, i_7, break_8] 66#[L62, $Ultimate##0, L48]true [2023-10-12 17:37:53,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:53,141 INFO L85 PathProgramCache]: Analyzing trace with hash 97403, now seen corresponding path program 1 times [2023-10-12 17:37:53,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:53,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185169113] [2023-10-12 17:37:53,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:53,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:53,145 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:53,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:53,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:53,149 INFO L85 PathProgramCache]: Analyzing trace with hash 95, now seen corresponding path program 1 times [2023-10-12 17:37:53,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:53,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190729618] [2023-10-12 17:37:53,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:53,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:53,153 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:53,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:53,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:53,157 INFO L85 PathProgramCache]: Analyzing trace with hash 3019557, now seen corresponding path program 1 times [2023-10-12 17:37:53,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:53,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963918783] [2023-10-12 17:37:53,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:53,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:53,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:53,168 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:53,257 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:53,257 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:53,257 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:53,257 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:53,257 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:37:53,257 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:53,257 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:53,257 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:53,257 INFO L133 ssoRankerPreferences]: Filename of dumped script: array-int-symm.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:37:53,257 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:53,257 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:53,259 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 17:37:53,261 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 17:37:53,305 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 17:37:53,308 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 17:37:53,475 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:53,475 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:37:53,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:53,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:53,489 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 17:37:53,489 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 17:37:53,493 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 17:37:53,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:53,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:53,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:53,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:53,502 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:37:53,502 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:37:53,505 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:37:53,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:53,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:53,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:53,509 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 17:37:53,511 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 17:37:53,513 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 17:37:53,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:53,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:53,520 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2023-10-12 17:37:53,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:53,545 INFO L401 nArgumentSynthesizer]: We have 30 Motzkin's Theorem applications. [2023-10-12 17:37:53,545 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2023-10-12 17:37:53,593 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:37:53,617 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2023-10-12 17:37:53,617 INFO L444 ModelExtractionUtils]: 49 out of 57 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-10-12 17:37:53,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:53,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:53,663 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:53,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-10-12 17:37:53,687 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:37:53,708 INFO L438 nArgumentSynthesizer]: Removed 6 redundant supporting invariants from a total of 6. [2023-10-12 17:37:53,708 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:37:53,708 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(len_1, i_7) = 1*len_1 - 1*i_7 Supporting invariants [] [2023-10-12 17:37:53,723 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 17:37:53,724 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:37:53,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:53,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:37:53,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:53,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:37:53,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:53,745 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 17:37:53,745 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:37:53,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:37:53,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 17:37:53,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2023-10-12 17:37:53,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:37:53,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:53,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:37:53,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:53,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:37:53,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:53,773 INFO L430 stractBuchiCegarLoop]: Abstraction has has 27 places, 300 transitions, 2100 flow [2023-10-12 17:37:53,774 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:37:53,774 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 27 places, 300 transitions, 2100 flow [2023-10-12 17:37:53,780 INFO L124 PetriNetUnfolderBase]: 25/48 cut-off events. [2023-10-12 17:37:53,781 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-10-12 17:37:53,781 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is empty [2023-10-12 17:37:53,785 INFO L201 PluginConnector]: Adding new model array-int-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:37:53 BoogieIcfgContainer [2023-10-12 17:37:53,785 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:37:53,785 INFO L158 Benchmark]: Toolchain (without parser) took 2349.20ms. Allocated memory was 161.5MB in the beginning and 226.5MB in the end (delta: 65.0MB). Free memory was 109.9MB in the beginning and 77.5MB in the end (delta: 32.4MB). Peak memory consumption was 96.6MB. Max. memory is 8.0GB. [2023-10-12 17:37:53,786 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.26ms. Allocated memory is still 161.5MB. Free memory is still 111.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:37:53,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.94ms. Allocated memory is still 161.5MB. Free memory was 109.9MB in the beginning and 108.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:37:53,786 INFO L158 Benchmark]: Boogie Preprocessor took 23.59ms. Allocated memory is still 161.5MB. Free memory was 108.4MB in the beginning and 107.3MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:37:53,787 INFO L158 Benchmark]: RCFGBuilder took 363.77ms. Allocated memory is still 161.5MB. Free memory was 107.3MB in the beginning and 95.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-10-12 17:37:53,787 INFO L158 Benchmark]: BuchiAutomizer took 1940.50ms. Allocated memory was 161.5MB in the beginning and 226.5MB in the end (delta: 65.0MB). Free memory was 95.2MB in the beginning and 77.5MB in the end (delta: 17.7MB). Peak memory consumption was 82.0MB. Max. memory is 8.0GB. [2023-10-12 17:37:53,788 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 0.26ms. Allocated memory is still 161.5MB. Free memory is still 111.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 16.94ms. Allocated memory is still 161.5MB. Free memory was 109.9MB in the beginning and 108.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.59ms. Allocated memory is still 161.5MB. Free memory was 108.4MB in the beginning and 107.3MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 363.77ms. Allocated memory is still 161.5MB. Free memory was 107.3MB in the beginning and 95.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 1940.50ms. Allocated memory was 161.5MB in the beginning and 226.5MB in the end (delta: 65.0MB). Free memory was 95.2MB in the beginning and 77.5MB in the end (delta: 17.7MB). Peak memory consumption was 82.0MB. 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 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i_4 + len_3 and consists of 4 locations. One deterministic module has affine ranking function len_1 + -1 * i_7 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.5s. 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 28 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital82 mio100 ax100 hnf100 lsp106 ukn62 mio100 lsp100 div100 bol109 ite100 ukn100 eq171 hnf97 smp100 dnf232 smp56 tf100 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 284ms VariablesStem: 5 VariablesLoop: 10 DisjunctsStem: 1 DisjunctsLoop: 3 SupportingInvariants: 6 MotzkinApplications: 30 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 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, 19 PlacesBefore, 17 PlacesAfterwards, 14 TransitionsBefore, 12 TransitionsAfterwards, 30 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, independent: 24, independent conditional: 0, independent unconditional: 24, 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: 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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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] , 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: 24, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, 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 17:37:53,804 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 [2023-10-12 17:37:54,000 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 [2023-10-12 17:37:54,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...