/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/weaver-benchmarks/generated/chl/nzb-file-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:23:43,736 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:23:43,785 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 17:23:43,815 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:23:43,816 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:23:43,816 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:23:43,818 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:23:43,819 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:23:43,819 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:23:43,822 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:23:43,822 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:23:43,822 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:23:43,822 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:23:43,823 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:23:43,824 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:23:43,824 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:23:43,825 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:23:43,825 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:23:43,825 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:23:43,825 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:23:43,825 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:23:43,827 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:23:43,827 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:23:43,827 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:23:43,827 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:23:43,827 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:23:43,828 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:23:43,828 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:23:43,828 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:23:43,828 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:23:43,829 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:23:43,829 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:23:43,829 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:23:43,830 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:23:43,830 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:23:43,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:23:43,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:23:43,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:23:43,994 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:23:43,995 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:23:43,996 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/nzb-file-symm.wvr.bpl [2023-10-12 17:23:43,996 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/nzb-file-symm.wvr.bpl' [2023-10-12 17:23:44,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:23:44,029 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:23:44,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:23:44,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:23:44,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:23:44,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:44" (1/1) ... [2023-10-12 17:23:44,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:44" (1/1) ... [2023-10-12 17:23:44,048 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:23:44,049 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:23:44,050 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:23:44,050 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:23:44,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:23:44,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:44" (1/1) ... [2023-10-12 17:23:44,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:44" (1/1) ... [2023-10-12 17:23:44,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:44" (1/1) ... [2023-10-12 17:23:44,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:44" (1/1) ... [2023-10-12 17:23:44,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:44" (1/1) ... [2023-10-12 17:23:44,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:44" (1/1) ... [2023-10-12 17:23:44,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:44" (1/1) ... [2023-10-12 17:23:44,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:44" (1/1) ... [2023-10-12 17:23:44,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:23:44,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:23:44,064 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:23:44,064 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:23:44,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:44" (1/1) ... [2023-10-12 17:23:44,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:44,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:44,110 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 17:23:44,115 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 17:23:44,147 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:23:44,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:23:44,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:23:44,147 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:23:44,148 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:23:44,148 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:23:44,148 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:23:44,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:23:44,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:23:44,148 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 17:23:44,187 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:23:44,188 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:23:44,292 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:23:44,362 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:23:44,363 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-10-12 17:23:44,364 INFO L201 PluginConnector]: Adding new model nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:23:44 BoogieIcfgContainer [2023-10-12 17:23:44,364 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:23:44,365 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:23:44,365 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:23:44,368 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:23:44,368 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:23:44,368 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:44" (1/2) ... [2023-10-12 17:23:44,369 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1be10957 and model type nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:23:44, skipping insertion in model container [2023-10-12 17:23:44,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:23:44,370 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:23:44" (2/2) ... [2023-10-12 17:23:44,371 INFO L332 chiAutomizerObserver]: Analyzing ICFG nzb-file-symm.wvr.bpl [2023-10-12 17:23:44,424 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-10-12 17:23:44,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 23 places, 22 transitions, 60 flow [2023-10-12 17:23:44,472 INFO L124 PetriNetUnfolderBase]: 4/18 cut-off events. [2023-10-12 17:23:44,472 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:23:44,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 18 events. 4/18 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 18 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 13. Up to 2 conditions per place. [2023-10-12 17:23:44,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 23 places, 22 transitions, 60 flow [2023-10-12 17:23:44,477 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 18 transitions, 48 flow [2023-10-12 17:23:44,479 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:23:44,495 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 18 transitions, 48 flow [2023-10-12 17:23:44,497 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 18 transitions, 48 flow [2023-10-12 17:23:44,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 21 places, 18 transitions, 48 flow [2023-10-12 17:23:44,502 INFO L124 PetriNetUnfolderBase]: 4/18 cut-off events. [2023-10-12 17:23:44,502 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:23:44,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 18 events. 4/18 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 18 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 13. Up to 2 conditions per place. [2023-10-12 17:23:44,502 INFO L119 LiptonReduction]: Number of co-enabled transitions 70 [2023-10-12 17:23:44,651 INFO L134 LiptonReduction]: Checked pairs total: 24 [2023-10-12 17:23:44,651 INFO L136 LiptonReduction]: Total number of compositions: 7 [2023-10-12 17:23:44,660 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:23:44,661 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:23:44,661 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:23:44,661 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:23:44,661 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:23:44,661 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:23:44,661 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:23:44,661 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:23:44,661 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 places, 14 transitions, 40 flow [2023-10-12 17:23:44,664 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:23:44,664 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:23:44,664 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:23:44,665 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:23:44,666 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:23:44,667 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 places, 14 transitions, 40 flow [2023-10-12 17:23:44,667 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:23:44,668 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:23:44,668 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:23:44,668 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:23:44,671 INFO L748 eck$LassoCheckResult]: Stem: 27#[$Ultimate##0]true [108] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 29#[L95, $Ultimate##0]true [96] $Ultimate##0-->L34: Formula: (and (not v_break_10_29) (not v_is_null_1_9) (= v_i_9_24 0) (not v_is_null_5_9)) InVars {is_null_1=v_is_null_1_9, is_null_5=v_is_null_5_9} OutVars{break_10=v_break_10_29, is_null_5=v_is_null_5_9, is_null_1=v_is_null_1_9, i_9=v_i_9_24} AuxVars[] AssignedVars[break_10, i_9] 31#[L95, L34]true [2023-10-12 17:23:44,671 INFO L750 eck$LassoCheckResult]: Loop: 31#[L95, L34]true [99] L34-->L34: Formula: (let ((.cse4 (not v_break_10_58)) (.cse2 (not v_break_10_57)) (.cse8 (select v_ends_with_6_29 v_i_9_33)) (.cse9 (select v_ends_with_2_27 v_i_9_33))) (let ((.cse0 (not v_break_10_47)) (.cse3 (not .cse9)) (.cse6 (not .cse8)) (.cse5 (and .cse2 .cse8)) (.cse1 (and .cse4 .cse9)) (.cse7 (and .cse8 .cse9))) (and (< v_i_9_33 5) .cse0 (or (and v_break_10_57 (or v_break_10_58 .cse1)) (and .cse2 (or .cse3 v_break_10_58) .cse4)) (or (and (or v_break_10_57 .cse5) v_break_10_45) (and .cse2 (not v_break_10_45) (or v_break_10_57 .cse6))) (or (and (or .cse7 v_break_10_47) v_break_10_58) (and .cse0 .cse4 (or .cse3 .cse6))) (= (+ v_i_9_33 1) v_i_9_32) (= v_result_8_41 (ite .cse5 (+ 1000 v_i_9_33) (ite .cse1 (+ v_i_9_33 (- 1000)) (ite .cse7 0 v_result_8_42))))))) InVars {result_8=v_result_8_42, break_10=v_break_10_47, ends_with_6=v_ends_with_6_29, i_9=v_i_9_33, ends_with_2=v_ends_with_2_27} OutVars{result_8=v_result_8_41, break_10=v_break_10_45, ends_with_6=v_ends_with_6_29, i_9=v_i_9_32, ends_with_2=v_ends_with_2_27} AuxVars[v_break_10_57, v_break_10_58] AssignedVars[result_8, break_10, i_9] 31#[L95, L34]true [2023-10-12 17:23:44,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:44,676 INFO L85 PathProgramCache]: Analyzing trace with hash 4405, now seen corresponding path program 1 times [2023-10-12 17:23:44,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:44,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573464520] [2023-10-12 17:23:44,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:44,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:44,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:44,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:44,749 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:44,749 INFO L85 PathProgramCache]: Analyzing trace with hash 130, now seen corresponding path program 1 times [2023-10-12 17:23:44,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:44,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84078403] [2023-10-12 17:23:44,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:44,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:44,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:44,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:44,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:44,780 INFO L85 PathProgramCache]: Analyzing trace with hash 136654, now seen corresponding path program 1 times [2023-10-12 17:23:44,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:44,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506666598] [2023-10-12 17:23:44,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:44,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:44,788 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:44,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:45,224 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:23:45,225 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:23:45,225 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:23:45,225 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:23:45,225 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:23:45,225 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:45,225 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:23:45,225 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:23:45,225 INFO L133 ssoRankerPreferences]: Filename of dumped script: nzb-file-symm.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:23:45,225 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:23:45,225 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:23:45,238 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 17:23:45,244 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 17:23:45,246 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 17:23:45,249 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 17:23:45,452 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2023-10-12 17:23:45,638 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:23:45,640 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:23:45,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:45,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:45,644 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 17:23:45,645 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 17:23:45,646 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 17:23:45,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:45,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:45,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:45,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:45,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:45,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:45,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:45,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:23:45,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:45,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:45,680 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 17:23:45,682 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 17:23:45,684 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 17:23:45,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:45,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:45,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:45,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:45,692 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:45,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:45,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:45,710 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 17:23:45,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:45,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:45,712 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 17:23:45,714 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 17:23:45,716 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 17:23:45,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:45,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:45,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:45,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:45,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:45,727 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:45,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:45,758 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 17:23:45,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:45,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:45,773 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 17:23:45,779 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 17:23:45,779 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 17:23:45,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:45,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:45,786 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2023-10-12 17:23:45,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:45,842 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2023-10-12 17:23:45,842 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2023-10-12 17:23:45,908 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:23:45,998 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2023-10-12 17:23:45,999 INFO L444 ModelExtractionUtils]: 43 out of 55 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-10-12 17:23:46,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:46,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:46,003 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 17:23:46,004 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 17:23:46,005 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:23:46,030 INFO L438 nArgumentSynthesizer]: Removed 8 redundant supporting invariants from a total of 8. [2023-10-12 17:23:46,030 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:23:46,042 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i_9) = -2*i_9 + 9 Supporting invariants [] [2023-10-12 17:23:46,049 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 17:23:46,052 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:23:46,053 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 17:23:46,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:23:46,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:23:46,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:23:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:23:46,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:23:46,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:23:46,108 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 17:23:46,134 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 17:23:46,135 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. 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 17:23:46,192 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. 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) Result 6 states and 193 transitions. [2023-10-12 17:23:46,193 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:23:46,195 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:23:46,197 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 17:23:46,199 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 17:23:46,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 114 transitions. [2023-10-12 17:23:46,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 114 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:23:46,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:46,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 114 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:23:46,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:46,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 114 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:23:46,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:46,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 184 transitions, 904 flow [2023-10-12 17:23:46,220 INFO L124 PetriNetUnfolderBase]: 80/144 cut-off events. [2023-10-12 17:23:46,220 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-10-12 17:23:46,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 144 events. 80/144 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 479 event pairs, 2 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 212. Up to 36 conditions per place. [2023-10-12 17:23:46,221 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 29 places, 184 transitions, 904 flow [2023-10-12 17:23:46,224 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 29 places, 184 transitions, 904 flow [2023-10-12 17:23:46,224 INFO L430 stractBuchiCegarLoop]: Abstraction has has 29 places, 184 transitions, 904 flow [2023-10-12 17:23:46,224 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:23:46,224 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 29 places, 184 transitions, 904 flow [2023-10-12 17:23:46,231 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:23:46,231 INFO L124 PetriNetUnfolderBase]: 35/61 cut-off events. [2023-10-12 17:23:46,231 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-10-12 17:23:46,231 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:23:46,231 INFO L748 eck$LassoCheckResult]: Stem: 27#[$Ultimate##0]true [108] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 29#[L95, $Ultimate##0]true [111] L95-->$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] 77#[L96, $Ultimate##0, $Ultimate##0]true [102] $Ultimate##0-->L68: Formula: (and (not v_is_null_1_15) (not v_break_13_39) (= v_i_12_28 0) (not v_is_null_5_15)) InVars {is_null_1=v_is_null_1_15, is_null_5=v_is_null_5_15} OutVars{i_12=v_i_12_28, is_null_5=v_is_null_5_15, break_13=v_break_13_39, is_null_1=v_is_null_1_15} AuxVars[] AssignedVars[i_12, break_13] 79#[L68, L96, $Ultimate##0]true [2023-10-12 17:23:46,232 INFO L750 eck$LassoCheckResult]: Loop: 79#[L68, L96, $Ultimate##0]true [105] L68-->L68: Formula: (let ((.cse4 (not v_break_13_57)) (.cse2 (not v_break_13_58)) (.cse8 (select v_ends_with_6_31 v_i_12_35)) (.cse9 (select v_ends_with_2_31 v_i_12_35))) (let ((.cse1 (not .cse9)) (.cse5 (not .cse8)) (.cse0 (and .cse9 .cse2)) (.cse3 (and .cse4 .cse8)) (.cse6 (and .cse8 .cse9)) (.cse7 (not v_break_13_47))) (and (or (and (or .cse0 v_break_13_58) v_break_13_45) (and (or .cse1 v_break_13_58) (not v_break_13_45) .cse2)) (or (and (or v_break_13_57 .cse3) v_break_13_58) (and .cse4 (or v_break_13_57 .cse5) .cse2)) (or (and (or .cse6 v_break_13_47) v_break_13_57) (and .cse4 .cse7 (or .cse1 .cse5))) (< v_i_12_35 5) (= v_result_11_39 (ite .cse0 (+ 1000 v_i_12_35) (ite .cse3 (+ v_i_12_35 (- 1000)) (ite .cse6 0 v_result_11_41)))) .cse7 (= (+ v_i_12_35 1) v_i_12_34)))) InVars {result_11=v_result_11_41, i_12=v_i_12_35, ends_with_6=v_ends_with_6_31, break_13=v_break_13_47, ends_with_2=v_ends_with_2_31} OutVars{result_11=v_result_11_39, i_12=v_i_12_34, ends_with_6=v_ends_with_6_31, break_13=v_break_13_45, ends_with_2=v_ends_with_2_31} AuxVars[v_break_13_58, v_break_13_57] AssignedVars[result_11, i_12, break_13] 79#[L68, L96, $Ultimate##0]true [105] L68-->L68: Formula: (let ((.cse4 (not v_break_13_57)) (.cse2 (not v_break_13_58)) (.cse8 (select v_ends_with_6_31 v_i_12_35)) (.cse9 (select v_ends_with_2_31 v_i_12_35))) (let ((.cse1 (not .cse9)) (.cse5 (not .cse8)) (.cse0 (and .cse9 .cse2)) (.cse3 (and .cse4 .cse8)) (.cse6 (and .cse8 .cse9)) (.cse7 (not v_break_13_47))) (and (or (and (or .cse0 v_break_13_58) v_break_13_45) (and (or .cse1 v_break_13_58) (not v_break_13_45) .cse2)) (or (and (or v_break_13_57 .cse3) v_break_13_58) (and .cse4 (or v_break_13_57 .cse5) .cse2)) (or (and (or .cse6 v_break_13_47) v_break_13_57) (and .cse4 .cse7 (or .cse1 .cse5))) (< v_i_12_35 5) (= v_result_11_39 (ite .cse0 (+ 1000 v_i_12_35) (ite .cse3 (+ v_i_12_35 (- 1000)) (ite .cse6 0 v_result_11_41)))) .cse7 (= (+ v_i_12_35 1) v_i_12_34)))) InVars {result_11=v_result_11_41, i_12=v_i_12_35, ends_with_6=v_ends_with_6_31, break_13=v_break_13_47, ends_with_2=v_ends_with_2_31} OutVars{result_11=v_result_11_39, i_12=v_i_12_34, ends_with_6=v_ends_with_6_31, break_13=v_break_13_45, ends_with_2=v_ends_with_2_31} AuxVars[v_break_13_58, v_break_13_57] AssignedVars[result_11, i_12, break_13] 79#[L68, L96, $Ultimate##0]true [2023-10-12 17:23:46,232 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:46,232 INFO L85 PathProgramCache]: Analyzing trace with hash 137122, now seen corresponding path program 1 times [2023-10-12 17:23:46,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:46,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085948123] [2023-10-12 17:23:46,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:46,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:46,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:46,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:46,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:46,241 INFO L85 PathProgramCache]: Analyzing trace with hash 4321, now seen corresponding path program 1 times [2023-10-12 17:23:46,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:46,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930161428] [2023-10-12 17:23:46,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:46,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:46,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:46,264 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:46,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:46,264 INFO L85 PathProgramCache]: Analyzing trace with hash 131777602, now seen corresponding path program 1 times [2023-10-12 17:23:46,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:46,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159285368] [2023-10-12 17:23:46,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:46,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:46,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:46,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:46,681 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:23:46,682 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:23:46,682 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:23:46,682 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:23:46,682 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:23:46,682 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:46,682 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:23:46,682 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:23:46,682 INFO L133 ssoRankerPreferences]: Filename of dumped script: nzb-file-symm.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:23:46,682 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:23:46,682 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:23:46,684 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 17:23:46,686 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 17:23:46,688 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 17:23:46,795 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 17:23:46,797 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 17:23:46,800 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 17:23:46,863 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2023-10-12 17:23:47,001 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:23:47,002 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:23:47,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:47,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:47,003 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:23:47,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-10-12 17:23:47,018 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 17:23:47,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:47,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:47,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:47,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:47,026 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:47,026 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:47,038 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:47,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:47,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:47,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:47,043 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:23:47,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-10-12 17:23:47,082 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 17:23:47,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:47,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:47,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:47,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:47,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:47,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:47,091 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:47,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-10-12 17:23:47,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:47,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:47,109 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:23:47,132 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 17:23:47,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:47,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:23:47,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:47,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:47,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:47,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:23:47,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:23:47,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-10-12 17:23:47,142 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:47,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:47,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:47,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:47,161 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:23:47,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-10-12 17:23:47,164 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 17:23:47,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:47,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:23:47,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:47,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:47,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:47,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:23:47,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:23:47,187 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:47,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-10-12 17:23:47,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:47,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:47,209 INFO L229 MonitoredProcess]: Starting monitored process 11 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 17:23:47,215 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 17:23:47,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:47,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:47,221 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2023-10-12 17:23:47,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:47,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-10-12 17:23:47,256 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2023-10-12 17:23:47,256 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2023-10-12 17:23:47,326 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:23:47,377 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2023-10-12 17:23:47,378 INFO L444 ModelExtractionUtils]: 43 out of 55 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-10-12 17:23:47,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:47,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:47,387 INFO L229 MonitoredProcess]: Starting monitored process 12 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 17:23:47,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-10-12 17:23:47,425 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:23:47,435 INFO L438 nArgumentSynthesizer]: Removed 8 redundant supporting invariants from a total of 8. [2023-10-12 17:23:47,435 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:23:47,435 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i_12) = -1*i_12 + 4 Supporting invariants [] [2023-10-12 17:23:47,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-10-12 17:23:47,443 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:23:47,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:23:47,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:23:47,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:23:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:23:47,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:23:47,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:23:47,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:23:47,486 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 17:23:47,486 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 17:23:47,532 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 6 states and 193 transitions. [2023-10-12 17:23:47,532 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:23:47,541 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:23:47,541 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 17:23:47,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 17:23:47,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 114 transitions. [2023-10-12 17:23:47,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 114 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:23:47,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:47,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 114 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:23:47,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:47,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 114 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:23:47,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:47,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 2424 transitions, 16896 flow [2023-10-12 17:23:47,598 INFO L124 PetriNetUnfolderBase]: 186/360 cut-off events. [2023-10-12 17:23:47,598 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2023-10-12 17:23:47,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1176 conditions, 360 events. 186/360 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1723 event pairs, 1 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 652. Up to 99 conditions per place. [2023-10-12 17:23:47,599 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 41 places, 2424 transitions, 16896 flow [2023-10-12 17:23:47,619 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 41 places, 2424 transitions, 16896 flow [2023-10-12 17:23:47,619 INFO L430 stractBuchiCegarLoop]: Abstraction has has 41 places, 2424 transitions, 16896 flow [2023-10-12 17:23:47,619 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:23:47,619 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 41 places, 2424 transitions, 16896 flow [2023-10-12 17:23:47,692 INFO L124 PetriNetUnfolderBase]: 186/360 cut-off events. [2023-10-12 17:23:47,692 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2023-10-12 17:23:47,692 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:23:47,696 INFO L201 PluginConnector]: Adding new model nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:23:47 BoogieIcfgContainer [2023-10-12 17:23:47,696 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:23:47,697 INFO L158 Benchmark]: Toolchain (without parser) took 3667.70ms. Allocated memory was 207.6MB in the beginning and 263.2MB in the end (delta: 55.6MB). Free memory was 158.7MB in the beginning and 224.8MB in the end (delta: -66.1MB). Peak memory consumption was 141.6MB. Max. memory is 8.0GB. [2023-10-12 17:23:47,697 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.25ms. Allocated memory is still 207.6MB. Free memory was 160.1MB in the beginning and 159.9MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:23:47,697 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.57ms. Allocated memory is still 207.6MB. Free memory was 158.6MB in the beginning and 157.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:23:47,698 INFO L158 Benchmark]: Boogie Preprocessor took 13.27ms. Allocated memory is still 207.6MB. Free memory was 157.0MB in the beginning and 156.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:23:47,698 INFO L158 Benchmark]: RCFGBuilder took 300.47ms. Allocated memory is still 207.6MB. Free memory was 155.9MB in the beginning and 174.7MB in the end (delta: -18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-10-12 17:23:47,698 INFO L158 Benchmark]: BuchiAutomizer took 3331.11ms. Allocated memory was 207.6MB in the beginning and 263.2MB in the end (delta: 55.6MB). Free memory was 174.4MB in the beginning and 224.8MB in the end (delta: -50.4MB). Peak memory consumption was 157.3MB. Max. memory is 8.0GB. [2023-10-12 17:23:47,699 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2023-10-12 17:23:47,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.25ms. Allocated memory is still 207.6MB. Free memory was 160.1MB in the beginning and 159.9MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.57ms. Allocated memory is still 207.6MB. Free memory was 158.6MB in the beginning and 157.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.27ms. Allocated memory is still 207.6MB. Free memory was 157.0MB in the beginning and 156.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 300.47ms. Allocated memory is still 207.6MB. Free memory was 155.9MB in the beginning and 174.7MB in the end (delta: -18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * BuchiAutomizer took 3331.11ms. Allocated memory was 207.6MB in the beginning and 263.2MB in the end (delta: 55.6MB). Free memory was 174.4MB in the beginning and 224.8MB in the end (delta: -50.4MB). Peak memory consumption was 157.3MB. 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 -2 * i_9 + 9 and consists of 4 locations. One deterministic module has affine ranking function -1 * i_12 + 4 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 2.6s. 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: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 36 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital96 mio100 ax100 hnf100 lsp380 ukn20 mio100 lsp96 div100 bol136 ite100 ukn100 eq140 hnf98 smp100 dnf464 smp25 tf100 neg100 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 270ms VariablesStem: 2 VariablesLoop: 8 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 48 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.2s - 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: 0.2s, 21 PlacesBefore, 17 PlacesAfterwards, 18 TransitionsBefore, 14 TransitionsAfterwards, 70 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 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: 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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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] , 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: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 24, unknown conditional: 0, unknown unconditional: 24] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, 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 17:23:47,736 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...