/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_AUTOMATON -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 17:13:33,499 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:13:33,574 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 17:13:33,601 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:13:33,602 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:13:33,602 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:13:33,603 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:13:33,603 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:13:33,604 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:13:33,607 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:13:33,608 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:13:33,608 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:13:33,608 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:13:33,609 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:13:33,610 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:13:33,610 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:13:33,611 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:13:33,611 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:13:33,611 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:13:33,611 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:13:33,611 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:13:33,613 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:13:33,613 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:13:33,613 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:13:33,613 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:13:33,614 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:13:33,614 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:13:33,614 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:13:33,614 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:13:33,615 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:13:33,615 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:13:33,616 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:13:33,616 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:13:33,617 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:13:33,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:13:33,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:13:33,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:13:33,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:13:33,859 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:13:33,860 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:13:33,861 INFO L431 ainManager$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 17:13:33,861 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 17:13:33,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:13:33,899 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:13:33,901 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:13:33,901 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:13:33,901 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:13:33,911 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 05:13:33" (1/1) ... [2023-10-12 17:13:33,918 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 05:13:33" (1/1) ... [2023-10-12 17:13:33,922 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:13:33,924 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:13:33,925 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:13:33,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:13:33,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:13:33,933 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 05:13:33" (1/1) ... [2023-10-12 17:13:33,933 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 05:13:33" (1/1) ... [2023-10-12 17:13:33,936 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 05:13:33" (1/1) ... [2023-10-12 17:13:33,936 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 05:13:33" (1/1) ... [2023-10-12 17:13:33,942 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 05:13:33" (1/1) ... [2023-10-12 17:13:33,945 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 05:13:33" (1/1) ... [2023-10-12 17:13:33,946 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 05:13:33" (1/1) ... [2023-10-12 17:13:33,946 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 05:13:33" (1/1) ... [2023-10-12 17:13:33,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:13:33,952 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:13:33,952 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:13:33,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:13:33,953 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 05:13:33" (1/1) ... [2023-10-12 17:13:33,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:33,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:33,978 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 17:13:34,005 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 17:13:34,016 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:13:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:13:34,019 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:13:34,019 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:13:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:13:34,020 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:13:34,020 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:13:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:13:34,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:13:34,021 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:13:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:13:34,021 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:13:34,021 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:13:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:13:34,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:13:34,022 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2023-10-12 17:13:34,022 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-10-12 17:13:34,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-10-12 17:13:34,022 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2023-10-12 17:13:34,022 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-10-12 17:13:34,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-10-12 17:13:34,023 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 17:13:34,066 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:13:34,067 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:13:34,179 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:13:34,206 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:13:34,207 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-10-12 17:13:34,207 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2023-10-12 17:13:34,208 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2023-10-12 17:13:34,208 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread5EXIT is neither atomic block end nor error location. [2023-10-12 17:13:34,208 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread6EXIT is neither atomic block end nor error location. [2023-10-12 17:13:34,210 INFO L201 PluginConnector]: Adding new model parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:13:34 BoogieIcfgContainer [2023-10-12 17:13:34,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:13:34,211 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:13:34,211 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:13:34,219 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:13:34,220 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:13:34,220 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 05:13:33" (1/2) ... [2023-10-12 17:13:34,221 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a136c24 and model type parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:13:34, skipping insertion in model container [2023-10-12 17:13:34,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:13:34,221 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 05:13:34" (2/2) ... [2023-10-12 17:13:34,222 INFO L332 chiAutomizerObserver]: Analyzing ICFG parallel-sum-1-dsl.wvr.bpl [2023-10-12 17:13:34,367 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-10-12 17:13:34,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 54 transitions, 180 flow [2023-10-12 17:13:34,426 INFO L124 PetriNetUnfolderBase]: 8/36 cut-off events. [2023-10-12 17:13:34,427 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-10-12 17:13:34,431 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 17:13:34,431 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 54 transitions, 180 flow [2023-10-12 17:13:34,437 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 36 transitions, 120 flow [2023-10-12 17:13:34,440 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:13:34,454 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 36 transitions, 120 flow [2023-10-12 17:13:34,456 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 36 transitions, 120 flow [2023-10-12 17:13:34,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 36 transitions, 120 flow [2023-10-12 17:13:34,466 INFO L124 PetriNetUnfolderBase]: 8/36 cut-off events. [2023-10-12 17:13:34,466 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-10-12 17:13:34,467 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 17:13:34,468 INFO L119 LiptonReduction]: Number of co-enabled transitions 520 [2023-10-12 17:13:34,672 INFO L134 LiptonReduction]: Checked pairs total: 822 [2023-10-12 17:13:34,672 INFO L136 LiptonReduction]: Total number of compositions: 7 [2023-10-12 17:13:34,687 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:13:34,688 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:13:34,688 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:13:34,688 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:13:34,688 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:13:34,688 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:13:34,688 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:13:34,689 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:13:34,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:13:34,769 INFO L131 ngComponentsAnalysis]: Automaton has 105 accepting balls. 105 [2023-10-12 17:13:34,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:34,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:34,774 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:13:34,774 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:34,774 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:13:34,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 171 states, but on-demand construction may add more states [2023-10-12 17:13:34,793 INFO L131 ngComponentsAnalysis]: Automaton has 105 accepting balls. 105 [2023-10-12 17:13:34,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:34,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:34,793 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:13:34,793 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:34,801 INFO L748 eck$LassoCheckResult]: Stem: 62#[$Ultimate##0]don't care [130] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 65#[$Ultimate##0, L105]don't care [104] $Ultimate##0-->L51: Formula: (and (= v_s_2_7 0) (= v_i_3_20 0)) InVars {} OutVars{i_3=v_i_3_20, s_2=v_s_2_7} AuxVars[] AssignedVars[i_3, s_2] 69#[L105, L51]don't care [148] L51-->L23: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_4) (= 2 v_thread2Thread1of1ForFork2_thidvar0_4)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_4, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0] 75#[L105, L23, L55]don't care [2023-10-12 17:13:34,801 INFO L750 eck$LassoCheckResult]: Loop: 75#[L105, L23, L55]don't care [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] 75#[L105, L23, L55]don't care [2023-10-12 17:13:34,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:34,805 INFO L85 PathProgramCache]: Analyzing trace with hash 158093, now seen corresponding path program 1 times [2023-10-12 17:13:34,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:34,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908835178] [2023-10-12 17:13:34,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:34,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:34,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:34,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:34,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:34,892 INFO L85 PathProgramCache]: Analyzing trace with hash 212, now seen corresponding path program 1 times [2023-10-12 17:13:34,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:34,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083297645] [2023-10-12 17:13:34,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:34,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:34,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:34,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:34,910 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:34,910 INFO L85 PathProgramCache]: Analyzing trace with hash 4901064, now seen corresponding path program 1 times [2023-10-12 17:13:34,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:34,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329763841] [2023-10-12 17:13:34,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:34,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:34,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:34,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:35,013 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:35,014 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:35,014 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:35,014 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:35,015 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:35,015 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:35,015 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:35,015 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:35,015 INFO L133 ssoRankerPreferences]: Filename of dumped script: parallel-sum-1-dsl.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:13:35,015 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:35,016 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:35,030 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 17:13:35,040 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 17:13:35,043 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 17:13:35,046 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 17:13:35,148 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:35,152 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:35,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:35,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:35,157 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 17:13:35,164 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 17:13:35,165 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 17:13:35,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:35,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:35,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:35,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:35,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:35,178 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:35,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:35,202 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 17:13:35,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:35,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:35,204 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 17:13:35,208 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 17:13:35,209 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 17:13:35,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:35,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:35,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:35,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:35,220 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:35,220 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:35,241 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:35,247 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 17:13:35,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:35,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:35,249 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 17:13:35,259 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 17:13:35,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:35,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:35,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:35,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:35,270 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:35,270 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:35,273 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 17:13:35,286 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:35,292 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 17:13:35,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:35,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:35,294 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 17:13:35,296 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 17:13:35,297 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 17:13:35,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:35,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:35,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:35,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:35,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:35,315 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:35,331 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:35,338 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 17:13:35,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:35,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:35,340 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 17:13:35,343 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 17:13:35,344 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 17:13:35,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:35,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:35,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:35,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:35,355 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:35,355 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:35,371 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:35,377 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:13:35,377 INFO L444 ModelExtractionUtils]: 7 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:13:35,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:35,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:35,385 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 17:13:35,389 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 17:13:35,390 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:35,411 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:13:35,411 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:35,412 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 17:13:35,421 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 17:13:35,424 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:35,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:35,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:35,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:35,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:35,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:35,478 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 17:13:35,501 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 17:13:35,503 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 171 states, but on-demand construction may add more states Second 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 17:13:35,627 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 171 states, but on-demand construction may add more states. Second 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 492 states and 2119 transitions. Complement of second has 5 states. [2023-10-12 17:13:35,629 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 17:13:35,634 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 17:13:35,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 63 transitions. [2023-10-12 17:13:35,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:13:35,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:35,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:13:35,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:35,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:13:35,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:35,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 492 states and 2119 transitions. [2023-10-12 17:13:35,658 INFO L131 ngComponentsAnalysis]: Automaton has 65 accepting balls. 65 [2023-10-12 17:13:35,672 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 492 states to 291 states and 1244 transitions. [2023-10-12 17:13:35,673 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 122 [2023-10-12 17:13:35,676 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 193 [2023-10-12 17:13:35,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 291 states and 1244 transitions. [2023-10-12 17:13:35,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:13:35,677 INFO L219 hiAutomatonCegarLoop]: Abstraction has 291 states and 1244 transitions. [2023-10-12 17:13:35,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states and 1244 transitions. [2023-10-12 17:13:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 223. [2023-10-12 17:13:35,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 223 states have (on average 4.488789237668161) internal successors, (1001), 222 states have internal predecessors, (1001), 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 17:13:35,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 1001 transitions. [2023-10-12 17:13:35,723 INFO L241 hiAutomatonCegarLoop]: Abstraction has 223 states and 1001 transitions. [2023-10-12 17:13:35,724 INFO L430 stractBuchiCegarLoop]: Abstraction has 223 states and 1001 transitions. [2023-10-12 17:13:35,724 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:13:35,724 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 223 states and 1001 transitions. [2023-10-12 17:13:35,726 INFO L131 ngComponentsAnalysis]: Automaton has 65 accepting balls. 65 [2023-10-12 17:13:35,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:35,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:35,727 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-10-12 17:13:35,727 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:35,727 INFO L748 eck$LassoCheckResult]: Stem: 1110#[$Ultimate##0]don't care [130] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 1112#[$Ultimate##0, L105]don't care [133] L105-->$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] 1360#[L106, $Ultimate##0, $Ultimate##0]don't care [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] 1046#[L106, $Ultimate##0, L92]don't care [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] 1050#[L64, L106, L96, $Ultimate##0]don't care [2023-10-12 17:13:35,728 INFO L750 eck$LassoCheckResult]: Loop: 1050#[L64, L106, L96, $Ultimate##0]don't care [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] 1050#[L64, L106, L96, $Ultimate##0]don't care [2023-10-12 17:13:35,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:35,728 INFO L85 PathProgramCache]: Analyzing trace with hash 4927914, now seen corresponding path program 1 times [2023-10-12 17:13:35,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:35,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368184486] [2023-10-12 17:13:35,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:35,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:35,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:35,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:35,739 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:35,739 INFO L85 PathProgramCache]: Analyzing trace with hash 210, now seen corresponding path program 1 times [2023-10-12 17:13:35,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:35,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251836464] [2023-10-12 17:13:35,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:35,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:35,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:35,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:35,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:35,762 INFO L85 PathProgramCache]: Analyzing trace with hash 152765513, now seen corresponding path program 1 times [2023-10-12 17:13:35,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:35,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797126779] [2023-10-12 17:13:35,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:35,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:35,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:35,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:35,900 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:35,900 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:35,900 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:35,900 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:35,901 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:35,901 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:35,901 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:35,901 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:35,901 INFO L133 ssoRankerPreferences]: Filename of dumped script: parallel-sum-1-dsl.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:13:35,901 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:35,901 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:35,903 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 17:13:35,921 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 17:13:35,928 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 17:13:35,931 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 17:13:35,934 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 17:13:35,936 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 17:13:35,938 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 17:13:35,940 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 17:13:35,943 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 17:13:35,949 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 17:13:35,952 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 17:13:36,060 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 17:13:36,098 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:36,098 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:36,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:36,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:36,101 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 17:13:36,104 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 17:13:36,105 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 17:13:36,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:36,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:36,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:36,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:36,119 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:36,119 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:36,138 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:36,144 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 17:13:36,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:36,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:36,146 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 17:13:36,155 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 17:13:36,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:36,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:36,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:36,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:36,167 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:36,168 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:36,168 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 17:13:36,192 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:36,197 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:13:36,197 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:13:36,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:36,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:36,201 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 17:13:36,205 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:36,213 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 17:13:36,222 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:13:36,222 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:36,223 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 17:13:36,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-10-12 17:13:36,230 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:36,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:36,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:36,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:36,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:36,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:36,266 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 17:13:36,267 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 17:13:36,267 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 223 states and 1001 transitions. cyclomatic complexity: 893 Second 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 17:13:36,348 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 223 states and 1001 transitions. cyclomatic complexity: 893. Second 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) Result 775 states and 3751 transitions. Complement of second has 4 states. [2023-10-12 17:13:36,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:13:36,349 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 17:13:36,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2023-10-12 17:13:36,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:13:36,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:36,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:13:36,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:36,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:13:36,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:36,350 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 775 states and 3751 transitions. [2023-10-12 17:13:36,362 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:13:36,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 775 states to 0 states and 0 transitions. [2023-10-12 17:13:36,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-10-12 17:13:36,363 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-10-12 17:13:36,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-10-12 17:13:36,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:13:36,363 INFO L219 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:36,363 INFO L241 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:36,363 INFO L430 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:36,363 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:13:36,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-10-12 17:13:36,363 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:13:36,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-10-12 17:13:36,372 INFO L201 PluginConnector]: Adding new model parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:13:36 BoogieIcfgContainer [2023-10-12 17:13:36,372 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:13:36,374 INFO L158 Benchmark]: Toolchain (without parser) took 2473.59ms. Allocated memory was 175.1MB in the beginning and 248.5MB in the end (delta: 73.4MB). Free memory was 129.4MB in the beginning and 193.1MB in the end (delta: -63.7MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. [2023-10-12 17:13:36,374 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.25ms. Allocated memory is still 175.1MB. Free memory is still 130.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:13:36,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.52ms. Allocated memory is still 175.1MB. Free memory was 129.4MB in the beginning and 127.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:13:36,376 INFO L158 Benchmark]: Boogie Preprocessor took 25.39ms. Allocated memory is still 175.1MB. Free memory was 127.9MB in the beginning and 126.6MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:13:36,378 INFO L158 Benchmark]: RCFGBuilder took 258.22ms. Allocated memory is still 175.1MB. Free memory was 126.6MB in the beginning and 114.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-10-12 17:13:36,379 INFO L158 Benchmark]: BuchiAutomizer took 2161.89ms. Allocated memory was 175.1MB in the beginning and 248.5MB in the end (delta: 73.4MB). Free memory was 114.5MB in the beginning and 193.1MB in the end (delta: -78.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:13:36,383 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 0.25ms. Allocated memory is still 175.1MB. Free memory is still 130.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.52ms. Allocated memory is still 175.1MB. Free memory was 129.4MB in the beginning and 127.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.39ms. Allocated memory is still 175.1MB. Free memory was 127.9MB in the beginning and 126.6MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 258.22ms. Allocated memory is still 175.1MB. Free memory was 126.6MB in the beginning and 114.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 2161.89ms. Allocated memory was 175.1MB in the beginning and 248.5MB in the end (delta: 73.4MB). Free memory was 114.5MB in the beginning and 193.1MB in the end (delta: -78.7MB). There was no memory consumed. 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 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 68 StatesRemovedByMinimization, 1 NontrivialMinimizations. 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, 75 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 5 mSDtfsCounter, 113 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: 46ms 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: 34, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 13, dependent conditional: 0, dependent unconditional: 13, 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 17:13:36,407 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 17:13:36,605 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...