/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/popl20-more/multiply-verify.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:14:07,311 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:14:07,373 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 17:14:07,394 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:14:07,395 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:14:07,395 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:14:07,396 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:14:07,396 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:14:07,397 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:14:07,400 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:14:07,400 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:14:07,400 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:14:07,400 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:14:07,401 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:14:07,402 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:14:07,402 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:14:07,402 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:14:07,402 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:14:07,402 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:14:07,402 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:14:07,403 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:14:07,403 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:14:07,404 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:14:07,404 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:14:07,404 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:14:07,404 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:14:07,405 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:14:07,405 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:14:07,405 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:14:07,405 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:14:07,406 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:14:07,406 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:14:07,406 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:14:07,407 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:14:07,407 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:14:07,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:14:07,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:14:07,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:14:07,619 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:14:07,620 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:14:07,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl [2023-10-12 17:14:07,621 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl' [2023-10-12 17:14:07,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:14:07,646 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:14:07,647 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:14:07,647 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:14:07,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:14:07,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:07" (1/1) ... [2023-10-12 17:14:07,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:07" (1/1) ... [2023-10-12 17:14:07,672 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:14:07,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:14:07,675 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:14:07,675 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:14:07,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:14:07,681 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:07" (1/1) ... [2023-10-12 17:14:07,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:07" (1/1) ... [2023-10-12 17:14:07,683 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:07" (1/1) ... [2023-10-12 17:14:07,683 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:07" (1/1) ... [2023-10-12 17:14:07,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:07" (1/1) ... [2023-10-12 17:14:07,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:07" (1/1) ... [2023-10-12 17:14:07,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:07" (1/1) ... [2023-10-12 17:14:07,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:07" (1/1) ... [2023-10-12 17:14:07,691 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:14:07,692 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:14:07,692 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:14:07,692 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:14:07,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:07" (1/1) ... [2023-10-12 17:14:07,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:07,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:07,715 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 17:14:07,717 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 17:14:07,745 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:14:07,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:14:07,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:14:07,748 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:14:07,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:14:07,749 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:14:07,749 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:14:07,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:14:07,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:14:07,749 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:14:07,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:14:07,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:14:07,750 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 17:14:07,788 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:14:07,789 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:14:07,885 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:14:07,894 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:14:07,894 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:14:07,896 INFO L201 PluginConnector]: Adding new model multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:14:07 BoogieIcfgContainer [2023-10-12 17:14:07,896 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:14:07,896 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:14:07,897 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:14:07,905 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:14:07,905 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:14:07,905 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:07" (1/2) ... [2023-10-12 17:14:07,906 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2db6c5a1 and model type multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:14:07, skipping insertion in model container [2023-10-12 17:14:07,906 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:14:07,906 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:14:07" (2/2) ... [2023-10-12 17:14:07,907 INFO L332 chiAutomizerObserver]: Analyzing ICFG multiply-verify.wvr.bpl [2023-10-12 17:14:07,977 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:14:08,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 36 transitions, 96 flow [2023-10-12 17:14:08,026 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2023-10-12 17:14:08,026 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:14:08,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 30 events. 2/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:14:08,029 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 36 transitions, 96 flow [2023-10-12 17:14:08,032 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 30 transitions, 78 flow [2023-10-12 17:14:08,035 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:14:08,044 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 78 flow [2023-10-12 17:14:08,046 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 78 flow [2023-10-12 17:14:08,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 78 flow [2023-10-12 17:14:08,052 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2023-10-12 17:14:08,052 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:14:08,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 30 events. 2/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:14:08,054 INFO L119 LiptonReduction]: Number of co-enabled transitions 300 [2023-10-12 17:14:08,410 INFO L134 LiptonReduction]: Checked pairs total: 225 [2023-10-12 17:14:08,410 INFO L136 LiptonReduction]: Total number of compositions: 15 [2023-10-12 17:14:08,429 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:14:08,429 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:14:08,430 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:14:08,430 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:14:08,430 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:14:08,430 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:14:08,430 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:14:08,430 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:14:08,432 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:14:08,463 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 18 [2023-10-12 17:14:08,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:14:08,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:14:08,467 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:14:08,467 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:14:08,467 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:14:08,467 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 42 states, but on-demand construction may add more states [2023-10-12 17:14:08,470 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 18 [2023-10-12 17:14:08,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:14:08,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:14:08,470 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:14:08,470 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:14:08,473 INFO L748 eck$LassoCheckResult]: Stem: 44#[$Ultimate##0]don't care [67] $Ultimate##0-->L61: Formula: (= v_end_7 v_start_1) InVars {end=v_end_7, start=v_start_1} OutVars{end=v_end_7, start=v_start_1} AuxVars[] AssignedVars[] 47#[L61]don't care [93] L61-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 49#[$Ultimate##0, L61-1]don't care [105] $Ultimate##0-->L25-1: Formula: (and (= v_x1_7 0) (= v_i1_6 0)) InVars {} OutVars{i1=v_i1_6, x1=v_x1_7} AuxVars[] AssignedVars[i1, x1] 53#[L61-1, L25-1]don't care [2023-10-12 17:14:08,474 INFO L750 eck$LassoCheckResult]: Loop: 53#[L61-1, L25-1]don't care [115] L25-1-->L25-1: Formula: (and (< v_i1_15 v_A_15) (= (+ v_B_9 v_x1_20) v_x1_19) (= v_i1_14 (+ v_i1_15 1))) InVars {A=v_A_15, i1=v_i1_15, x1=v_x1_20, B=v_B_9} OutVars{A=v_A_15, i1=v_i1_14, x1=v_x1_19, B=v_B_9} AuxVars[] AssignedVars[i1, x1] 53#[L61-1, L25-1]don't care [2023-10-12 17:14:08,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:08,477 INFO L85 PathProgramCache]: Analyzing trace with hash 97166, now seen corresponding path program 1 times [2023-10-12 17:14:08,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:08,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648644561] [2023-10-12 17:14:08,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:08,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:08,538 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:08,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:08,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:08,551 INFO L85 PathProgramCache]: Analyzing trace with hash 146, now seen corresponding path program 1 times [2023-10-12 17:14:08,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:08,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115177538] [2023-10-12 17:14:08,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:08,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:08,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:08,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:08,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:08,585 INFO L85 PathProgramCache]: Analyzing trace with hash 3012261, now seen corresponding path program 1 times [2023-10-12 17:14:08,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:08,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614798206] [2023-10-12 17:14:08,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:08,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:08,599 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:08,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:08,655 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:08,656 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:08,656 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:08,656 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:08,656 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:14:08,656 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:08,656 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:08,656 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:08,656 INFO L133 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:14:08,656 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:08,656 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:08,667 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:08,681 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 17:14:08,709 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:08,709 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:14:08,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:08,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:08,722 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 17:14:08,723 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 17:14:08,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:08,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:08,737 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 17:14:08,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:08,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:08,739 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 17:14:08,741 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 17:14:08,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:14:08,742 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:08,848 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:14:08,856 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 17:14:08,856 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:08,856 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:08,856 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:08,856 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:08,856 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:14:08,856 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:08,857 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:08,857 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:08,857 INFO L133 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:14:08,857 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:08,857 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:08,858 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 17:14:08,876 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 17:14:08,902 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:08,905 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:14:08,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:08,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:08,907 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 17:14:08,922 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 17:14:08,923 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 17:14:08,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:08,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:08,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:08,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:08,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:08,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:08,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:08,956 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:14:08,970 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:14:08,970 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:14:08,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:08,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:08,973 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 17:14:08,974 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 17:14:08,975 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:14:08,975 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:14:08,976 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:14:08,976 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i1, A) = -1*i1 + 1*A Supporting invariants [] [2023-10-12 17:14:08,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-10-12 17:14:08,983 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:14:08,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:09,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:14:09,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:09,035 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:14:09,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:09,036 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 17:14:09,058 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 17:14:09,060 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 42 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 17:14:09,132 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 42 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 108 states and 324 transitions. Complement of second has 5 states. [2023-10-12 17:14:09,134 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 17:14:09,139 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 17:14:09,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2023-10-12 17:14:09,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:14:09,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:09,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:14:09,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:09,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:14:09,148 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:09,148 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 324 transitions. [2023-10-12 17:14:09,162 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 11 [2023-10-12 17:14:09,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 57 states and 172 transitions. [2023-10-12 17:14:09,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2023-10-12 17:14:09,166 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2023-10-12 17:14:09,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 172 transitions. [2023-10-12 17:14:09,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:14:09,167 INFO L219 hiAutomatonCegarLoop]: Abstraction has 57 states and 172 transitions. [2023-10-12 17:14:09,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 172 transitions. [2023-10-12 17:14:09,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2023-10-12 17:14:09,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 3.152173913043478) internal successors, (145), 45 states have internal predecessors, (145), 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 17:14:09,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 145 transitions. [2023-10-12 17:14:09,191 INFO L241 hiAutomatonCegarLoop]: Abstraction has 46 states and 145 transitions. [2023-10-12 17:14:09,191 INFO L430 stractBuchiCegarLoop]: Abstraction has 46 states and 145 transitions. [2023-10-12 17:14:09,192 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:14:09,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 145 transitions. [2023-10-12 17:14:09,194 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 11 [2023-10-12 17:14:09,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:14:09,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:14:09,194 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-10-12 17:14:09,194 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:14:09,195 INFO L748 eck$LassoCheckResult]: Stem: 358#[$Ultimate##0]don't care [67] $Ultimate##0-->L61: Formula: (= v_end_7 v_start_1) InVars {end=v_end_7, start=v_start_1} OutVars{end=v_end_7, start=v_start_1} AuxVars[] AssignedVars[] 270#[L61]don't care [93] L61-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 272#[$Ultimate##0, L61-1]don't care [96] L61-1-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 274#[$Ultimate##0, $Ultimate##0, L62]don't care [111] $Ultimate##0-->L40-1: Formula: (and (= v_x2_15 0) (= v_i2_10 0)) InVars {} OutVars{x2=v_x2_15, i2=v_i2_10} AuxVars[] AssignedVars[x2, i2] 280#[$Ultimate##0, L40-1, L62]don't care [2023-10-12 17:14:09,195 INFO L750 eck$LassoCheckResult]: Loop: 280#[$Ultimate##0, L40-1, L62]don't care [114] L40-1-->L40-1: Formula: (and (= v_i2_14 (+ v_i2_15 1)) (= v_x2_19 (+ v_B_7 v_x2_20)) (< v_i2_15 v_A_13)) InVars {A=v_A_13, x2=v_x2_20, i2=v_i2_15, B=v_B_7} OutVars{A=v_A_13, x2=v_x2_19, i2=v_i2_14, B=v_B_7} AuxVars[] AssignedVars[x2, i2] 280#[$Ultimate##0, L40-1, L62]don't care [2023-10-12 17:14:09,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:09,197 INFO L85 PathProgramCache]: Analyzing trace with hash 3011978, now seen corresponding path program 1 times [2023-10-12 17:14:09,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:09,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269954368] [2023-10-12 17:14:09,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:09,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:09,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:09,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:09,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:09,217 INFO L85 PathProgramCache]: Analyzing trace with hash 145, now seen corresponding path program 1 times [2023-10-12 17:14:09,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:09,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179933023] [2023-10-12 17:14:09,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:09,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:09,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:09,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:09,232 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:09,232 INFO L85 PathProgramCache]: Analyzing trace with hash 93371432, now seen corresponding path program 1 times [2023-10-12 17:14:09,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:09,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516330227] [2023-10-12 17:14:09,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:09,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:09,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:09,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:09,266 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:09,266 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:09,266 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:09,266 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:09,266 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:14:09,266 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:09,266 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:09,267 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:09,267 INFO L133 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:14:09,268 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:09,268 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:09,276 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 17:14:09,279 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 17:14:09,305 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:09,305 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:14:09,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:09,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:09,308 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 17:14:09,309 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 17:14:09,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:09,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:09,381 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:14:09,381 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x2=0, B=0} Honda state: {x2=0, B=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:14:09,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-10-12 17:14:09,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:09,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:09,388 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 17:14:09,390 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 17:14:09,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:09,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:09,422 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 17:14:09,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:09,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:09,428 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 17:14:09,429 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 17:14:09,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:14:09,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:09,544 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:14:09,548 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 17:14:09,548 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:09,549 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:09,549 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:09,549 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:09,549 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:14:09,549 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:09,549 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:09,549 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:09,549 INFO L133 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:14:09,549 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:09,549 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:09,550 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 17:14:09,554 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 17:14:09,578 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:09,578 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:14:09,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:09,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:09,580 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 17:14:09,588 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 17:14:09,637 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 17:14:09,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:09,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:09,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:09,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:09,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:09,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:09,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:09,653 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:14:09,658 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 17:14:09,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:09,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:09,659 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 17:14:09,661 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 17:14:09,662 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 17:14:09,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:09,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:09,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:09,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:09,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:09,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:09,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:09,687 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:14:09,691 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:14:09,691 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:14:09,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:09,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:09,693 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 17:14:09,694 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 17:14:09,695 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:14:09,695 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:14:09,695 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:14:09,695 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(A, i2) = 1*A - 1*i2 Supporting invariants [] [2023-10-12 17:14:09,703 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 17:14:09,706 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:14:09,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:09,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:14:09,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:09,750 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:14:09,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:09,751 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 17:14:09,752 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 17:14:09,752 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 145 transitions. cyclomatic complexity: 117 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 17:14:09,779 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 145 transitions. cyclomatic complexity: 117. 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 113 states and 339 transitions. Complement of second has 4 states. [2023-10-12 17:14:09,780 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 17:14:09,780 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 17:14:09,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2023-10-12 17:14:09,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:14:09,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:09,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:14:09,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:09,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:14:09,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:09,781 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 339 transitions. [2023-10-12 17:14:09,782 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:14:09,783 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 0 states and 0 transitions. [2023-10-12 17:14:09,783 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-10-12 17:14:09,783 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-10-12 17:14:09,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-10-12 17:14:09,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:14:09,783 INFO L219 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:14:09,783 INFO L241 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:14:09,783 INFO L430 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:14:09,783 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:14:09,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-10-12 17:14:09,783 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:14:09,783 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-10-12 17:14:09,787 INFO L201 PluginConnector]: Adding new model multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:14:09 BoogieIcfgContainer [2023-10-12 17:14:09,788 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:14:09,788 INFO L158 Benchmark]: Toolchain (without parser) took 2142.44ms. Allocated memory was 170.9MB in the beginning and 309.3MB in the end (delta: 138.4MB). Free memory was 119.4MB in the beginning and 224.8MB in the end (delta: -105.4MB). Peak memory consumption was 34.1MB. Max. memory is 8.0GB. [2023-10-12 17:14:09,788 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.26ms. Allocated memory is still 170.9MB. Free memory is still 120.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:14:09,789 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.54ms. Allocated memory is still 170.9MB. Free memory was 119.4MB in the beginning and 117.8MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-10-12 17:14:09,789 INFO L158 Benchmark]: Boogie Preprocessor took 16.54ms. Allocated memory is still 170.9MB. Free memory was 117.8MB in the beginning and 116.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:14:09,789 INFO L158 Benchmark]: RCFGBuilder took 204.35ms. Allocated memory is still 170.9MB. Free memory was 116.7MB in the beginning and 106.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-10-12 17:14:09,790 INFO L158 Benchmark]: BuchiAutomizer took 1891.11ms. Allocated memory was 170.9MB in the beginning and 309.3MB in the end (delta: 138.4MB). Free memory was 106.6MB in the beginning and 224.8MB in the end (delta: -118.2MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB. [2023-10-12 17:14:09,791 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 170.9MB. Free memory is still 120.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.54ms. Allocated memory is still 170.9MB. Free memory was 119.4MB in the beginning and 117.8MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.54ms. Allocated memory is still 170.9MB. Free memory was 117.8MB in the beginning and 116.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 204.35ms. Allocated memory is still 170.9MB. Free memory was 116.7MB in the beginning and 106.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 1891.11ms. Allocated memory was 170.9MB in the beginning and 309.3MB in the end (delta: 138.4MB). Free memory was 106.6MB in the beginning and 224.8MB in the end (delta: -118.2MB). Peak memory consumption was 19.4MB. 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 A + -1 * i1 and consists of 4 locations. One deterministic module has affine ranking function -1 * i2 + A and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 11 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, 36 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 2 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 70ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.4s - 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: 0.4s, 38 PlacesBefore, 24 PlacesAfterwards, 30 TransitionsBefore, 16 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 15 TotalNumberOfCompositions, 225 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 195, independent: 189, independent conditional: 0, independent unconditional: 189, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 171, independent: 165, independent conditional: 0, independent unconditional: 165, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 171, independent: 165, independent conditional: 0, independent unconditional: 165, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 195, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 171, unknown conditional: 0, unknown unconditional: 171] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, 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 17:14:09,814 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 17:14:10,004 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 17:14:10,206 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...