/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/parallel/parallel-sum-1-dsl.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:24:57,672 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:24:57,748 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 17:24:57,777 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:24:57,778 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:24:57,779 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:24:57,780 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:24:57,780 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:24:57,781 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:24:57,784 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:24:57,784 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:24:57,785 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:24:57,785 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:24:57,786 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:24:57,787 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:24:57,787 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:24:57,787 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:24:57,787 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:24:57,787 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:24:57,788 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:24:57,788 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:24:57,788 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:24:57,789 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:24:57,789 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:24:57,790 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:24:57,790 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:24:57,790 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:24:57,790 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:24:57,790 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:24:57,791 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:24:57,792 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:24:57,792 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:24:57,792 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:24:57,793 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:24:57,793 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:24:58,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:24:58,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:24:58,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:24:58,047 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:24:58,048 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:24:58,049 INFO L431 ainManager$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 17:24:58,050 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 17:24:58,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:24:58,083 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:24:58,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:24:58,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:24:58,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:24:58,097 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 05:24:58" (1/1) ... [2023-10-12 17:24:58,107 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 05:24:58" (1/1) ... [2023-10-12 17:24:58,112 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:24:58,114 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:24:58,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:24:58,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:24:58,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:24:58,123 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 05:24:58" (1/1) ... [2023-10-12 17:24:58,123 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 05:24:58" (1/1) ... [2023-10-12 17:24:58,124 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 05:24:58" (1/1) ... [2023-10-12 17:24:58,124 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 05:24:58" (1/1) ... [2023-10-12 17:24:58,127 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 05:24:58" (1/1) ... [2023-10-12 17:24:58,129 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 05:24:58" (1/1) ... [2023-10-12 17:24:58,130 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 05:24:58" (1/1) ... [2023-10-12 17:24:58,131 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 05:24:58" (1/1) ... [2023-10-12 17:24:58,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:24:58,137 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:24:58,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:24:58,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:24:58,138 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 05:24:58" (1/1) ... [2023-10-12 17:24:58,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:58,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:58,162 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 17:24:58,166 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 17:24:58,196 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:24:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:24:58,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:24:58,196 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:24:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:24:58,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:24:58,197 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:24:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:24:58,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:24:58,197 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:24:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:24:58,197 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:24:58,197 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:24:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:24:58,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:24:58,198 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2023-10-12 17:24:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-10-12 17:24:58,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-10-12 17:24:58,198 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2023-10-12 17:24:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-10-12 17:24:58,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-10-12 17:24:58,199 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 17:24:58,244 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:24:58,246 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:24:58,335 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:24:58,366 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:24:58,367 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-10-12 17:24:58,368 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2023-10-12 17:24:58,369 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2023-10-12 17:24:58,369 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread5EXIT is neither atomic block end nor error location. [2023-10-12 17:24:58,369 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread6EXIT is neither atomic block end nor error location. [2023-10-12 17:24:58,371 INFO L201 PluginConnector]: Adding new model parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:24:58 BoogieIcfgContainer [2023-10-12 17:24:58,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:24:58,391 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:24:58,391 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:24:58,412 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:24:58,413 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:24:58,413 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 05:24:58" (1/2) ... [2023-10-12 17:24:58,415 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74ba6c48 and model type parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:24:58, skipping insertion in model container [2023-10-12 17:24:58,415 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:24:58,415 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 05:24:58" (2/2) ... [2023-10-12 17:24:58,417 INFO L332 chiAutomizerObserver]: Analyzing ICFG parallel-sum-1-dsl.wvr.bpl [2023-10-12 17:24:58,526 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-10-12 17:24:58,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 54 transitions, 180 flow [2023-10-12 17:24:58,575 INFO L124 PetriNetUnfolderBase]: 8/36 cut-off events. [2023-10-12 17:24:58,576 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-10-12 17:24:58,580 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 17:24:58,581 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 54 transitions, 180 flow [2023-10-12 17:24:58,586 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 36 transitions, 120 flow [2023-10-12 17:24:58,589 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:24:58,601 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 36 transitions, 120 flow [2023-10-12 17:24:58,603 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 36 transitions, 120 flow [2023-10-12 17:24:58,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 36 transitions, 120 flow [2023-10-12 17:24:58,613 INFO L124 PetriNetUnfolderBase]: 8/36 cut-off events. [2023-10-12 17:24:58,613 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-10-12 17:24:58,614 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 17:24:58,615 INFO L119 LiptonReduction]: Number of co-enabled transitions 520 [2023-10-12 17:24:58,817 INFO L134 LiptonReduction]: Checked pairs total: 822 [2023-10-12 17:24:58,817 INFO L136 LiptonReduction]: Total number of compositions: 7 [2023-10-12 17:24:58,829 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:24:58,829 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:24:58,829 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:24:58,829 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:24:58,829 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:24:58,830 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:24:58,830 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:24:58,830 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:24:58,831 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 41 places, 30 transitions, 108 flow [2023-10-12 17:24:58,835 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:24:58,835 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-10-12 17:24:58,835 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:24:58,835 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:24:58,838 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:24:58,838 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 41 places, 30 transitions, 108 flow [2023-10-12 17:24:58,840 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:24:58,840 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-10-12 17:24:58,840 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:24:58,840 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:24:58,845 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] $Ultimate##0-->L51: Formula: (and (= v_s_2_7 0) (= v_i_3_20 0)) InVars {} OutVars{i_3=v_i_3_20, s_2=v_s_2_7} AuxVars[] AssignedVars[i_3, s_2] 67#[L105, L51]true [148] L51-->L23: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_4) (= 2 v_thread2Thread1of1ForFork2_thidvar0_4)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_4, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0] 69#[L105, L23, L55]true [2023-10-12 17:24:58,845 INFO L750 eck$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 17:24:58,853 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:58,853 INFO L85 PathProgramCache]: Analyzing trace with hash 158093, now seen corresponding path program 1 times [2023-10-12 17:24:58,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:58,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86539811] [2023-10-12 17:24:58,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:58,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:58,918 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:58,940 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:58,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:58,943 INFO L85 PathProgramCache]: Analyzing trace with hash 212, now seen corresponding path program 1 times [2023-10-12 17:24:58,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:58,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747266405] [2023-10-12 17:24:58,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:58,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:58,954 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:58,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:58,970 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:58,970 INFO L85 PathProgramCache]: Analyzing trace with hash 4901064, now seen corresponding path program 1 times [2023-10-12 17:24:58,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:58,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933757055] [2023-10-12 17:24:58,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:58,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:58,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:58,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:59,071 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:24:59,072 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:24:59,072 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:24:59,072 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:24:59,072 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:24:59,072 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:59,072 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:24:59,073 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:24:59,073 INFO L133 ssoRankerPreferences]: Filename of dumped script: parallel-sum-1-dsl.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:24:59,073 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:24:59,073 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:24:59,087 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 17:24:59,097 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 17:24:59,100 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 17:24:59,103 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 17:24:59,199 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:24:59,202 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:24:59,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:59,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:59,209 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 17:24:59,223 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 17:24:59,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:59,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:59,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:59,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:59,238 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:59,238 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:59,244 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 17:24:59,253 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:59,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-10-12 17:24:59,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:59,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:59,265 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 17:24:59,276 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 17:24:59,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:59,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:59,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:59,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:59,288 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:59,288 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:59,294 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 17:24:59,305 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:59,308 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 17:24:59,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:59,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:59,310 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 17:24:59,312 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 17:24:59,314 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 17:24:59,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:59,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:59,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:59,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:59,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:59,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:59,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:59,356 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 17:24:59,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:59,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:59,359 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 17:24:59,362 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 17:24:59,363 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 17:24:59,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:59,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:59,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:59,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:59,377 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:59,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:59,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:59,400 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 17:24:59,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:59,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:59,402 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 17:24:59,404 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 17:24:59,406 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 17:24:59,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:59,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:59,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:59,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:59,420 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:59,420 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:59,449 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:24:59,455 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:24:59,455 INFO L444 ModelExtractionUtils]: 7 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:24:59,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:59,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:59,463 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 17:24:59,464 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 17:24:59,498 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:24:59,539 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:24:59,539 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:24:59,540 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 17:24:59,545 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 17:24:59,548 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:24:59,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:24:59,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:24:59,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:24:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:24:59,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:24:59,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:24:59,615 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 17:24:59,660 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 17:24:59,662 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. 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 17:24:59,829 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. 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) Result 6 states and 439 transitions. [2023-10-12 17:24:59,830 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:24:59,835 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:24:59,838 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 17:24:59,842 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 17:24:59,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 258 transitions. [2023-10-12 17:24:59,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 258 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:24:59,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:24:59,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 258 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:24:59,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:24:59,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 258 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:24:59,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:24:59,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 404 transitions, 2288 flow [2023-10-12 17:24:59,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-10-12 17:25:00,068 INFO L124 PetriNetUnfolderBase]: 1716/2265 cut-off events. [2023-10-12 17:25:00,068 INFO L125 PetriNetUnfolderBase]: For 831/831 co-relation queries the response was YES. [2023-10-12 17:25:00,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5807 conditions, 2265 events. 1716/2265 cut-off events. For 831/831 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7492 event pairs, 23 based on Foata normal form. 0/1300 useless extension candidates. Maximal degree in co-relation 5496. Up to 750 conditions per place. [2023-10-12 17:25:00,076 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 53 places, 404 transitions, 2288 flow [2023-10-12 17:25:00,084 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 53 places, 404 transitions, 2288 flow [2023-10-12 17:25:00,084 INFO L430 stractBuchiCegarLoop]: Abstraction has has 53 places, 404 transitions, 2288 flow [2023-10-12 17:25:00,084 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:25:00,084 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 53 places, 404 transitions, 2288 flow [2023-10-12 17:25:00,090 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:00,090 INFO L124 PetriNetUnfolderBase]: 22/42 cut-off events. [2023-10-12 17:25:00,090 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-10-12 17:25:00,090 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:00,091 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] 119#[$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] 121#[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] 123#[L64, $Ultimate##0, L96, L106]true [2023-10-12 17:25:00,091 INFO L750 eck$LassoCheckResult]: Loop: 123#[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] 123#[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] 123#[L64, $Ultimate##0, L96, L106]true [2023-10-12 17:25:00,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:00,094 INFO L85 PathProgramCache]: Analyzing trace with hash 4927914, now seen corresponding path program 1 times [2023-10-12 17:25:00,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:00,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197564695] [2023-10-12 17:25:00,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:00,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:00,100 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:00,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:00,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:00,107 INFO L85 PathProgramCache]: Analyzing trace with hash 6689, now seen corresponding path program 1 times [2023-10-12 17:25:00,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:00,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108110928] [2023-10-12 17:25:00,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:00,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:00,129 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:00,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:00,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:00,142 INFO L85 PathProgramCache]: Analyzing trace with hash 440763786, now seen corresponding path program 1 times [2023-10-12 17:25:00,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:00,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821818756] [2023-10-12 17:25:00,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:00,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:00,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:00,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:00,319 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:25:00,319 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:25:00,319 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:25:00,319 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:25:00,319 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:25:00,319 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:00,319 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:25:00,319 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:25:00,319 INFO L133 ssoRankerPreferences]: Filename of dumped script: parallel-sum-1-dsl.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:25:00,319 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:25:00,320 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:25:00,322 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 17:25:00,324 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 17:25:00,326 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 17:25:00,329 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 17:25:00,347 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 17:25:00,350 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 17:25:00,352 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 17:25:00,354 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 17:25:00,357 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 17:25:00,360 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 17:25:00,362 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 17:25:00,487 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:25:00,487 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:25:00,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:00,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:00,489 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 17:25:00,492 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 17:25:00,494 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 17:25:00,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:00,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:00,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:00,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:00,504 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:00,505 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:00,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:00,528 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 17:25:00,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:00,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:00,531 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 17:25:00,539 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 17:25:00,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:00,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:00,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:00,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:00,555 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:00,555 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:00,565 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 17:25:00,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:00,577 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 17:25:00,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:00,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:00,580 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 17:25:00,582 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 17:25:00,584 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 17:25:00,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:00,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:00,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:00,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:00,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:00,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:00,609 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:00,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-10-12 17:25:00,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:00,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:00,616 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 17:25:00,620 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 17:25:00,621 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 17:25:00,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:00,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:00,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:00,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:00,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:00,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:00,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:00,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-10-12 17:25:00,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:00,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:00,653 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 17:25:00,657 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 17:25:00,658 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 17:25:00,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:00,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:00,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:00,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:00,667 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:00,667 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:00,689 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:25:00,700 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-10-12 17:25:00,700 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-10-12 17:25:00,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:00,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:00,705 INFO L229 MonitoredProcess]: Starting monitored process 13 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 17:25:00,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-10-12 17:25:00,710 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:25:00,741 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:25:00,742 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:25:00,742 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 17:25:00,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-10-12 17:25:00,754 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:25:00,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:00,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:25:00,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:00,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:25:00,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:00,830 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 17:25:00,830 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 17:25:00,831 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 17:25:00,972 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 439 transitions. [2023-10-12 17:25:00,972 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:25:01,016 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:25:01,021 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 17:25:01,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 17:25:01,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 258 transitions. [2023-10-12 17:25:01,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 258 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:25:01,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:01,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 258 transitions. Stem has 6 letters. Loop has 2 letters. [2023-10-12 17:25:01,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:01,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 258 transitions. Stem has 4 letters. Loop has 4 letters. [2023-10-12 17:25:01,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:01,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 5448 transitions, 42096 flow [2023-10-12 17:25:01,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-10-12 17:25:02,194 INFO L124 PetriNetUnfolderBase]: 6281/7994 cut-off events. [2023-10-12 17:25:02,194 INFO L125 PetriNetUnfolderBase]: For 2829/2829 co-relation queries the response was YES. [2023-10-12 17:25:02,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28289 conditions, 7994 events. 6281/7994 cut-off events. For 2829/2829 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 30087 event pairs, 86 based on Foata normal form. 0/4247 useless extension candidates. Maximal degree in co-relation 27683. Up to 3086 conditions per place. [2023-10-12 17:25:02,204 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 65 places, 5448 transitions, 42096 flow [2023-10-12 17:25:02,268 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 65 places, 5448 transitions, 42096 flow [2023-10-12 17:25:02,268 INFO L430 stractBuchiCegarLoop]: Abstraction has has 65 places, 5448 transitions, 42096 flow [2023-10-12 17:25:02,268 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:25:02,268 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 65 places, 5448 transitions, 42096 flow [2023-10-12 17:25:04,882 INFO L124 PetriNetUnfolderBase]: 6281/7994 cut-off events. [2023-10-12 17:25:04,882 INFO L125 PetriNetUnfolderBase]: For 2829/2829 co-relation queries the response was YES. [2023-10-12 17:25:04,882 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:25:04,888 INFO L201 PluginConnector]: Adding new model parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:25:04 BoogieIcfgContainer [2023-10-12 17:25:04,888 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:25:04,890 INFO L158 Benchmark]: Toolchain (without parser) took 6805.84ms. Allocated memory was 181.4MB in the beginning and 705.7MB in the end (delta: 524.3MB). Free memory was 133.1MB in the beginning and 472.7MB in the end (delta: -339.6MB). Peak memory consumption was 298.5MB. Max. memory is 8.0GB. [2023-10-12 17:25:04,891 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.26ms. Allocated memory is still 181.4MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:25:04,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.30ms. Allocated memory is still 181.4MB. Free memory was 133.1MB in the beginning and 131.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:25:04,895 INFO L158 Benchmark]: Boogie Preprocessor took 21.60ms. Allocated memory is still 181.4MB. Free memory was 131.5MB in the beginning and 130.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:25:04,895 INFO L158 Benchmark]: RCFGBuilder took 252.41ms. Allocated memory was 181.4MB in the beginning and 289.4MB in the end (delta: 108.0MB). Free memory was 130.3MB in the beginning and 260.7MB in the end (delta: -130.4MB). Peak memory consumption was 20.2MB. Max. memory is 8.0GB. [2023-10-12 17:25:04,897 INFO L158 Benchmark]: BuchiAutomizer took 6497.78ms. Allocated memory was 289.4MB in the beginning and 705.7MB in the end (delta: 416.3MB). Free memory was 260.7MB in the beginning and 472.7MB in the end (delta: -212.0MB). Peak memory consumption was 317.0MB. Max. memory is 8.0GB. [2023-10-12 17:25:04,903 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.26ms. Allocated memory is still 181.4MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.30ms. Allocated memory is still 181.4MB. Free memory was 133.1MB in the beginning and 131.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.60ms. Allocated memory is still 181.4MB. Free memory was 131.5MB in the beginning and 130.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 252.41ms. Allocated memory was 181.4MB in the beginning and 289.4MB in the end (delta: 108.0MB). Free memory was 130.3MB in the beginning and 260.7MB in the end (delta: -130.4MB). Peak memory consumption was 20.2MB. Max. memory is 8.0GB. * BuchiAutomizer took 6497.78ms. Allocated memory was 289.4MB in the beginning and 705.7MB in the end (delta: 416.3MB). Free memory was 260.7MB in the beginning and 472.7MB in the end (delta: -212.0MB). Peak memory consumption was 317.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i_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 6.3s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. 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, 238 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 236 mSDsluCounter, 161 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 262 IncrementalHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 92 mSDtfsCounter, 262 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital49 mio100 ax100 hnf100 lsp63 ukn87 mio100 lsp50 div100 bol100 ite100 ukn100 eq208 hnf92 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms 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: 35, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 12, dependent conditional: 0, dependent unconditional: 12, 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 17:25:04,920 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...