/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/parallel/parallel-sum-1-dsl.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:38:33,330 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:38:33,389 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 17:38:33,440 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:38:33,441 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:38:33,441 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:38:33,442 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:38:33,442 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:38:33,443 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:38:33,445 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:38:33,445 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:38:33,446 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:38:33,446 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:38:33,447 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:38:33,447 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:38:33,447 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:38:33,447 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:38:33,447 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:38:33,447 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:38:33,447 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:38:33,448 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:38:33,448 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:38:33,449 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:38:33,449 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:38:33,449 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:38:33,449 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:38:33,450 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:38:33,450 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:38:33,450 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:38:33,450 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:38:33,451 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:38:33,451 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:38:33,451 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:38:33,452 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:38:33,452 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> RABIN_PETRI_NET [2023-10-12 17:38:33,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:38:33,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:38:33,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:38:33,682 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:38:33,682 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:38:33,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1-dsl.wvr.bpl [2023-10-12 17:38:33,683 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1-dsl.wvr.bpl' [2023-10-12 17:38:33,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:38:33,712 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:38:33,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:38:33,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:38:33,713 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:38:33,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,731 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,735 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:38:33,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:38:33,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:38:33,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:38:33,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:38:33,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,746 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,752 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,754 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,756 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:38:33,757 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:38:33,757 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:38:33,757 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:38:33,758 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:33,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:33,802 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 17:38:33,804 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 17:38:33,828 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:38:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:38:33,828 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:38:33,828 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:38:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:38:33,828 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:38:33,828 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:38:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:38:33,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:38:33,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:38:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:38:33,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:38:33,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:38:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:38:33,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:38:33,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2023-10-12 17:38:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-10-12 17:38:33,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-10-12 17:38:33,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2023-10-12 17:38:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-10-12 17:38:33,830 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-10-12 17:38:33,830 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 17:38:33,867 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:38:33,868 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:38:33,954 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:38:33,976 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:38:33,976 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-10-12 17:38:33,976 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2023-10-12 17:38:33,977 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2023-10-12 17:38:33,977 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread5EXIT is neither atomic block end nor error location. [2023-10-12 17:38:33,977 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread6EXIT is neither atomic block end nor error location. [2023-10-12 17:38:33,979 INFO L201 PluginConnector]: Adding new model parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:38:33 BoogieIcfgContainer [2023-10-12 17:38:33,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:38:33,980 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:38:33,980 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:38:33,983 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:38:33,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:38:33,983 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/2) ... [2023-10-12 17:38:33,984 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54d26ced and model type parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:38:33, skipping insertion in model container [2023-10-12 17:38:33,984 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:38:33,984 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:38:33" (2/2) ... [2023-10-12 17:38:33,985 INFO L332 chiAutomizerObserver]: Analyzing ICFG parallel-sum-1-dsl.wvr.bpl [2023-10-12 17:38:34,062 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-10-12 17:38:34,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 54 transitions, 180 flow [2023-10-12 17:38:34,112 INFO L124 PetriNetUnfolderBase]: 8/36 cut-off events. [2023-10-12 17:38:34,112 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-10-12 17:38:34,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 36 events. 8/36 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 56 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 47. Up to 3 conditions per place. [2023-10-12 17:38:34,116 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 54 transitions, 180 flow [2023-10-12 17:38:34,119 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 36 transitions, 120 flow [2023-10-12 17:38:34,121 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:38:34,131 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 36 transitions, 120 flow [2023-10-12 17:38:34,133 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 36 transitions, 120 flow [2023-10-12 17:38:34,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 36 transitions, 120 flow [2023-10-12 17:38:34,141 INFO L124 PetriNetUnfolderBase]: 8/36 cut-off events. [2023-10-12 17:38:34,141 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-10-12 17:38:34,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 36 events. 8/36 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 59 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 47. Up to 3 conditions per place. [2023-10-12 17:38:34,142 INFO L119 LiptonReduction]: Number of co-enabled transitions 520 [2023-10-12 17:38:34,357 INFO L134 LiptonReduction]: Checked pairs total: 822 [2023-10-12 17:38:34,357 INFO L136 LiptonReduction]: Total number of compositions: 7 [2023-10-12 17:38:34,366 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:38:34,366 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:38:34,366 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:38:34,366 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:38:34,366 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:38:34,366 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:38:34,367 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:38:34,367 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == RabinPetriNetCegarLoop ======== [2023-10-12 17:38:34,367 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 41 places, 30 transitions, 108 flow [2023-10-12 17:38:34,370 ERROR L47 etriNetUnfolderRabin]: [1:1A:[130] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][21], 2:2A:[104] $Ultimate##0-->L51: Formula: (and (= v_s_2_7 0) (= v_i_3_20 0)) InVars {} OutVars{i_3=v_i_3_20, s_2=v_s_2_7} AuxVars[] AssignedVars[i_3, s_2][2], 5:3A:[148] L51-->L23: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_4) (= 2 v_thread2Thread1of1ForFork2_thidvar0_4)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_4, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0][9]][6:4A:[181] L23-->L23: Formula: (and (= (select v_X_0_37 v_i_3_56) v_t_4_13) (< v_i_3_57 v_n_1_53) (= (+ v_s_2_28 v_t_4_13) v_s_2_27) (= (+ v_i_3_57 1) v_i_3_56)) InVars {X_0=v_X_0_37, n_1=v_n_1_53, i_3=v_i_3_57, s_2=v_s_2_28} OutVars{X_0=v_X_0_37, n_1=v_n_1_53, i_3=v_i_3_56, s_2=v_s_2_27, t_4=v_t_4_13} AuxVars[] AssignedVars[i_3, s_2, t_4][28]] [2023-10-12 17:38:34,371 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:38:34,371 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-10-12 17:38:34,371 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:38:34,371 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:38:34,373 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:38:34,373 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 41 places, 30 transitions, 108 flow [2023-10-12 17:38:34,374 ERROR L47 etriNetUnfolderRabin]: [1:1A:[130] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][21], 2:2A:[104] $Ultimate##0-->L51: Formula: (and (= v_s_2_7 0) (= v_i_3_20 0)) InVars {} OutVars{i_3=v_i_3_20, s_2=v_s_2_7} AuxVars[] AssignedVars[i_3, s_2][2], 5:3A:[148] L51-->L23: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_4) (= 2 v_thread2Thread1of1ForFork2_thidvar0_4)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_4, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0][9]][6:4A:[181] L23-->L23: Formula: (and (= (select v_X_0_37 v_i_3_56) v_t_4_13) (< v_i_3_57 v_n_1_53) (= (+ v_s_2_28 v_t_4_13) v_s_2_27) (= (+ v_i_3_57 1) v_i_3_56)) InVars {X_0=v_X_0_37, n_1=v_n_1_53, i_3=v_i_3_57, s_2=v_s_2_28} OutVars{X_0=v_X_0_37, n_1=v_n_1_53, i_3=v_i_3_56, s_2=v_s_2_27, t_4=v_t_4_13} AuxVars[] AssignedVars[i_3, s_2, t_4][28]] [2023-10-12 17:38:34,375 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:38:34,375 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-10-12 17:38:34,375 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:38:34,375 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:38:34,379 INFO L748 eck$LassoCheckResult]: Stem: 63#[$Ultimate##0]true [130] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 65#[L105, $Ultimate##0]true [104] $Ultimate##0-->L51: Formula: (and (= v_s_2_7 0) (= v_i_3_20 0)) InVars {} OutVars{i_3=v_i_3_20, s_2=v_s_2_7} AuxVars[] AssignedVars[i_3, s_2] 67#[L105, L51]true [148] L51-->L23: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_4) (= 2 v_thread2Thread1of1ForFork2_thidvar0_4)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_4, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0] 69#[L105, L23, L55]true [2023-10-12 17:38:34,379 INFO L750 eck$LassoCheckResult]: Loop: 69#[L105, L23, L55]true [181] L23-->L23: Formula: (and (= (select v_X_0_37 v_i_3_56) v_t_4_13) (< v_i_3_57 v_n_1_53) (= (+ v_s_2_28 v_t_4_13) v_s_2_27) (= (+ v_i_3_57 1) v_i_3_56)) InVars {X_0=v_X_0_37, n_1=v_n_1_53, i_3=v_i_3_57, s_2=v_s_2_28} OutVars{X_0=v_X_0_37, n_1=v_n_1_53, i_3=v_i_3_56, s_2=v_s_2_27, t_4=v_t_4_13} AuxVars[] AssignedVars[i_3, s_2, t_4] 69#[L105, L23, L55]true [2023-10-12 17:38:34,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:38:34,382 INFO L85 PathProgramCache]: Analyzing trace with hash 158093, now seen corresponding path program 1 times [2023-10-12 17:38:34,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:38:34,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139719119] [2023-10-12 17:38:34,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:38:34,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:38:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:34,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:38:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:34,526 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:38:34,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:38:34,530 INFO L85 PathProgramCache]: Analyzing trace with hash 212, now seen corresponding path program 1 times [2023-10-12 17:38:34,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:38:34,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974964913] [2023-10-12 17:38:34,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:38:34,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:38:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:34,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:38:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:34,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:38:34,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:38:34,558 INFO L85 PathProgramCache]: Analyzing trace with hash 4901064, now seen corresponding path program 1 times [2023-10-12 17:38:34,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:38:34,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007884239] [2023-10-12 17:38:34,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:38:34,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:38:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:34,571 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:38:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:34,576 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:38:34,649 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:38:34,650 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:38:34,650 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:38:34,650 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:38:34,650 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:38:34,650 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:34,650 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:38:34,650 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:38:34,650 INFO L133 ssoRankerPreferences]: Filename of dumped script: parallel-sum-1-dsl.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:38:34,651 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:38:34,651 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:38:34,661 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 17:38:34,667 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 17:38:34,669 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 17:38:34,672 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 17:38:34,745 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:38:34,748 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:38:34,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:34,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:34,759 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 17:38:34,779 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 17:38:34,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:38:34,786 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 17:38:34,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:38:34,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:38:34,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:38:34,794 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:38:34,794 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:38:34,845 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:38:34,859 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 17:38:34,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:34,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:34,883 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 17:38:34,897 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 17:38:34,898 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 17:38:34,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:38:34,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:38:34,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:38:34,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:38:34,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:38:34,907 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:38:34,925 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:38:34,930 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 17:38:34,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:34,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:34,932 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 17:38:34,934 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 17:38:34,935 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 17:38:34,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:38:34,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:38:34,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:38:34,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:38:34,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:38:34,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:38:34,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:38:35,001 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 17:38:35,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:35,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:35,003 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 17:38:35,009 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 17:38:35,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:38:35,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:38:35,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:38:35,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:38:35,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:38:35,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:38:35,029 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 17:38:35,048 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:38:35,054 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 17:38:35,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:35,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:35,055 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:38:35,064 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 17:38:35,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:38:35,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:38:35,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:38:35,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:38:35,077 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 17:38:35,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:38:35,079 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:38:35,097 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:38:35,103 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:38:35,104 INFO L444 ModelExtractionUtils]: 7 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:38:35,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:35,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:35,107 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 17:38:35,165 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:38:35,180 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 17:38:35,188 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:38:35,188 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:38:35,189 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i_3, n_1) = -1*i_3 + 1*n_1 Supporting invariants [] [2023-10-12 17:38:35,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:38:35,198 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:38:35,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:38:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:38:35,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:38:35,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:38:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:38:35,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:38:35,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:38:35,267 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 17:38:35,318 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 17:38:35,474 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 17:38:35,477 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 17:38:35,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 258 transitions. [2023-10-12 17:38:35,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 258 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:38:35,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:38:35,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 258 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:38:35,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:38:35,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 258 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:38:35,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:38:35,482 INFO L430 stractBuchiCegarLoop]: Abstraction has has 46 places, 150 transitions, 840 flow [2023-10-12 17:38:35,482 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:38:35,482 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 46 places, 150 transitions, 840 flow [2023-10-12 17:38:35,485 ERROR L47 etriNetUnfolderRabin]: [1:1A:[130] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][106], 3:2A:[133] L105-->$Ultimate##0: Formula: (and (= 4 v_thread4Thread1of1ForFork1_thidvar1_2) (= 4 v_thread4Thread1of1ForFork1_thidvar0_2) (= 4 v_thread4Thread1of1ForFork1_thidvar2_2) (= 4 v_thread4Thread1of1ForFork1_thidvar3_2)) InVars {} OutVars{thread4Thread1of1ForFork1_thidvar0=v_thread4Thread1of1ForFork1_thidvar0_2, thread4Thread1of1ForFork1_thidvar1=v_thread4Thread1of1ForFork1_thidvar1_2, thread4Thread1of1ForFork1_thidvar2=v_thread4Thread1of1ForFork1_thidvar2_2, thread4Thread1of1ForFork1_thidvar3=v_thread4Thread1of1ForFork1_thidvar3_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork1_thidvar0, thread4Thread1of1ForFork1_thidvar1, thread4Thread1of1ForFork1_thidvar2, thread4Thread1of1ForFork1_thidvar3][66], 5:3A:[116] $Ultimate##0-->L92: Formula: (and (= v_i_7_18 0) (= v_s_6_7 0)) InVars {} OutVars{i_7=v_i_7_18, s_6=v_s_6_7} AuxVars[] AssignedVars[i_7, s_6][6], 11:4A:[154] L92-->L64: Formula: (and (= v_thread5Thread1of1ForFork4_thidvar3_4 5) (= v_thread5Thread1of1ForFork4_thidvar4_4 5) (= v_thread5Thread1of1ForFork4_thidvar1_4 5) (= v_thread5Thread1of1ForFork4_thidvar0_4 5) (= v_thread5Thread1of1ForFork4_thidvar2_4 5)) InVars {} OutVars{thread5Thread1of1ForFork4_thidvar0=v_thread5Thread1of1ForFork4_thidvar0_4, thread5Thread1of1ForFork4_thidvar1=v_thread5Thread1of1ForFork4_thidvar1_4, thread5Thread1of1ForFork4_thidvar2=v_thread5Thread1of1ForFork4_thidvar2_4, thread5Thread1of1ForFork4_thidvar3=v_thread5Thread1of1ForFork4_thidvar3_4, thread5Thread1of1ForFork4_thidvar4=v_thread5Thread1of1ForFork4_thidvar4_4} AuxVars[] AssignedVars[thread5Thread1of1ForFork4_thidvar0, thread5Thread1of1ForFork4_thidvar1, thread5Thread1of1ForFork4_thidvar2, thread5Thread1of1ForFork4_thidvar3, thread5Thread1of1ForFork4_thidvar4][71]][12:5A:[179] L64-->L64: Formula: (and (= v_i_7_54 (+ v_i_7_55 1)) (= (select v_X_0_31 v_i_7_54) v_t_8_13) (< v_i_7_55 v_n_1_47) (= (+ v_s_6_26 v_t_8_13) v_s_6_25)) InVars {X_0=v_X_0_31, i_7=v_i_7_55, s_6=v_s_6_26, n_1=v_n_1_47} OutVars{X_0=v_X_0_31, i_7=v_i_7_54, s_6=v_s_6_25, t_8=v_t_8_13, n_1=v_n_1_47} AuxVars[] AssignedVars[i_7, s_6, t_8][131]] [2023-10-12 17:38:35,485 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:38:35,485 INFO L124 PetriNetUnfolderBase]: 3/11 cut-off events. [2023-10-12 17:38:35,485 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:38:35,485 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:38:35,486 INFO L748 eck$LassoCheckResult]: Stem: 63#[$Ultimate##0]true [130] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 65#[L105, $Ultimate##0]true [133] L105-->$Ultimate##0: Formula: (and (= 4 v_thread4Thread1of1ForFork1_thidvar1_2) (= 4 v_thread4Thread1of1ForFork1_thidvar0_2) (= 4 v_thread4Thread1of1ForFork1_thidvar2_2) (= 4 v_thread4Thread1of1ForFork1_thidvar3_2)) InVars {} OutVars{thread4Thread1of1ForFork1_thidvar0=v_thread4Thread1of1ForFork1_thidvar0_2, thread4Thread1of1ForFork1_thidvar1=v_thread4Thread1of1ForFork1_thidvar1_2, thread4Thread1of1ForFork1_thidvar2=v_thread4Thread1of1ForFork1_thidvar2_2, thread4Thread1of1ForFork1_thidvar3=v_thread4Thread1of1ForFork1_thidvar3_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork1_thidvar0, thread4Thread1of1ForFork1_thidvar1, thread4Thread1of1ForFork1_thidvar2, thread4Thread1of1ForFork1_thidvar3] 108#[$Ultimate##0, $Ultimate##0, L106]true [116] $Ultimate##0-->L92: Formula: (and (= v_i_7_18 0) (= v_s_6_7 0)) InVars {} OutVars{i_7=v_i_7_18, s_6=v_s_6_7} AuxVars[] AssignedVars[i_7, s_6] 110#[L92, $Ultimate##0, L106]true [154] L92-->L64: Formula: (and (= v_thread5Thread1of1ForFork4_thidvar3_4 5) (= v_thread5Thread1of1ForFork4_thidvar4_4 5) (= v_thread5Thread1of1ForFork4_thidvar1_4 5) (= v_thread5Thread1of1ForFork4_thidvar0_4 5) (= v_thread5Thread1of1ForFork4_thidvar2_4 5)) InVars {} OutVars{thread5Thread1of1ForFork4_thidvar0=v_thread5Thread1of1ForFork4_thidvar0_4, thread5Thread1of1ForFork4_thidvar1=v_thread5Thread1of1ForFork4_thidvar1_4, thread5Thread1of1ForFork4_thidvar2=v_thread5Thread1of1ForFork4_thidvar2_4, thread5Thread1of1ForFork4_thidvar3=v_thread5Thread1of1ForFork4_thidvar3_4, thread5Thread1of1ForFork4_thidvar4=v_thread5Thread1of1ForFork4_thidvar4_4} AuxVars[] AssignedVars[thread5Thread1of1ForFork4_thidvar0, thread5Thread1of1ForFork4_thidvar1, thread5Thread1of1ForFork4_thidvar2, thread5Thread1of1ForFork4_thidvar3, thread5Thread1of1ForFork4_thidvar4] 112#[L64, $Ultimate##0, L96, L106]true [2023-10-12 17:38:35,486 INFO L750 eck$LassoCheckResult]: Loop: 112#[L64, $Ultimate##0, L96, L106]true [179] L64-->L64: Formula: (and (= v_i_7_54 (+ v_i_7_55 1)) (= (select v_X_0_31 v_i_7_54) v_t_8_13) (< v_i_7_55 v_n_1_47) (= (+ v_s_6_26 v_t_8_13) v_s_6_25)) InVars {X_0=v_X_0_31, i_7=v_i_7_55, s_6=v_s_6_26, n_1=v_n_1_47} OutVars{X_0=v_X_0_31, i_7=v_i_7_54, s_6=v_s_6_25, t_8=v_t_8_13, n_1=v_n_1_47} AuxVars[] AssignedVars[i_7, s_6, t_8] 112#[L64, $Ultimate##0, L96, L106]true [2023-10-12 17:38:35,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:38:35,486 INFO L85 PathProgramCache]: Analyzing trace with hash 4927914, now seen corresponding path program 1 times [2023-10-12 17:38:35,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:38:35,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484134516] [2023-10-12 17:38:35,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:38:35,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:38:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:35,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:38:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:35,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:38:35,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:38:35,495 INFO L85 PathProgramCache]: Analyzing trace with hash 210, now seen corresponding path program 1 times [2023-10-12 17:38:35,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:38:35,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579706964] [2023-10-12 17:38:35,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:38:35,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:38:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:35,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:38:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:35,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:38:35,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:38:35,501 INFO L85 PathProgramCache]: Analyzing trace with hash 152765513, now seen corresponding path program 1 times [2023-10-12 17:38:35,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:38:35,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499032024] [2023-10-12 17:38:35,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:38:35,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:38:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:35,505 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:38:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:35,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:38:35,591 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:38:35,592 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:38:35,592 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:38:35,592 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:38:35,592 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:38:35,592 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:35,592 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:38:35,592 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:38:35,592 INFO L133 ssoRankerPreferences]: Filename of dumped script: parallel-sum-1-dsl.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:38:35,592 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:38:35,592 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:38:35,593 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 17:38:35,604 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 17:38:35,607 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 17:38:35,610 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 17:38:35,612 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 17:38:35,614 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 17:38:35,616 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 17:38:35,618 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 17:38:35,621 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 17:38:35,623 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 17:38:35,625 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 17:38:35,715 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:38:35,715 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:38:35,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:35,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:35,730 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 17:38:35,769 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 17:38:35,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:38:35,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:38:35,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:38:35,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:38:35,778 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:38:35,778 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:38:35,782 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:38:35,789 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 17:38:35,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-10-12 17:38:35,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:35,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:35,797 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 17:38:35,803 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 17:38:35,804 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 17:38:35,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:38:35,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:38:35,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:38:35,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:38:35,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:38:35,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:38:35,839 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:38:35,855 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:38:35,855 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:38:35,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:35,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:35,859 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 17:38:35,860 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 17:38:35,861 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:38:35,897 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:38:35,897 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:38:35,897 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n_1, i_7) = 1*n_1 - 1*i_7 Supporting invariants [] [2023-10-12 17:38:35,913 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 17:38:35,914 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:38:35,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:38:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:38:35,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:38:35,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:38:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:38:35,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:38:35,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:38:35,946 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 17:38:35,947 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 17:38:35,981 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 17:38:35,988 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 17:38:36,105 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 17:38:36,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 17:38:36,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 258 transitions. [2023-10-12 17:38:36,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 258 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:38:36,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:38:36,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 258 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:38:36,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:38:36,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 258 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:38:36,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:38:36,110 INFO L430 stractBuchiCegarLoop]: Abstraction has has 51 places, 750 transitions, 5700 flow [2023-10-12 17:38:36,110 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:38:36,110 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 51 places, 750 transitions, 5700 flow [2023-10-12 17:38:36,328 INFO L124 PetriNetUnfolderBase]: 944/1242 cut-off events. [2023-10-12 17:38:36,329 INFO L125 PetriNetUnfolderBase]: For 466/466 co-relation queries the response was YES. [2023-10-12 17:38:36,329 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is empty [2023-10-12 17:38:36,334 INFO L201 PluginConnector]: Adding new model parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:38:36 BoogieIcfgContainer [2023-10-12 17:38:36,334 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:38:36,335 INFO L158 Benchmark]: Toolchain (without parser) took 2622.21ms. Allocated memory was 212.9MB in the beginning and 316.7MB in the end (delta: 103.8MB). Free memory was 168.7MB in the beginning and 214.6MB in the end (delta: -45.9MB). Peak memory consumption was 59.1MB. Max. memory is 8.0GB. [2023-10-12 17:38:36,335 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.24ms. Allocated memory is still 212.9MB. Free memory is still 169.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:38:36,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.50ms. Allocated memory is still 212.9MB. Free memory was 168.5MB in the beginning and 167.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:38:36,336 INFO L158 Benchmark]: Boogie Preprocessor took 19.59ms. Allocated memory is still 212.9MB. Free memory was 167.1MB in the beginning and 166.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:38:36,336 INFO L158 Benchmark]: RCFGBuilder took 222.25ms. Allocated memory is still 212.9MB. Free memory was 165.9MB in the beginning and 153.9MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-10-12 17:38:36,337 INFO L158 Benchmark]: BuchiAutomizer took 2354.48ms. Allocated memory was 212.9MB in the beginning and 316.7MB in the end (delta: 103.8MB). Free memory was 153.7MB in the beginning and 214.6MB in the end (delta: -60.9MB). Peak memory consumption was 44.5MB. Max. memory is 8.0GB. [2023-10-12 17:38:36,338 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.24ms. Allocated memory is still 212.9MB. Free memory is still 169.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.50ms. Allocated memory is still 212.9MB. Free memory was 168.5MB in the beginning and 167.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.59ms. Allocated memory is still 212.9MB. Free memory was 167.1MB in the beginning and 166.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 222.25ms. Allocated memory is still 212.9MB. Free memory was 165.9MB in the beginning and 153.9MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 2354.48ms. Allocated memory was 212.9MB in the beginning and 316.7MB in the end (delta: 103.8MB). Free memory was 153.7MB in the beginning and 214.6MB in the end (delta: -60.9MB). Peak memory consumption was 44.5MB. 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_3 + n_1 and consists of 4 locations. One deterministic module has affine ranking function n_1 + -1 * i_7 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. 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, 238 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 236 mSDsluCounter, 138 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 228 IncrementalHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 92 mSDtfsCounter, 228 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital45 mio100 ax100 hnf100 lsp60 ukn92 mio100 lsp50 div100 bol100 ite100 ukn100 eq216 hnf92 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 96ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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, 47 PlacesBefore, 41 PlacesAfterwards, 36 TransitionsBefore, 30 TransitionsAfterwards, 520 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 822 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 791, independent: 787, independent conditional: 0, independent unconditional: 787, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 265, independent: 261, independent conditional: 0, independent unconditional: 261, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 265, independent: 253, independent conditional: 0, independent unconditional: 253, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 33, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 791, independent: 526, independent conditional: 0, independent unconditional: 526, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 265, unknown conditional: 0, unknown unconditional: 265] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 144, Positive conditional cache size: 0, Positive unconditional cache size: 144, 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 17:38:36,354 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...