/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:30:01,029 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:30:01,106 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 17:30:01,281 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:30:01,281 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:30:01,282 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:30:01,282 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:30:01,283 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:30:01,283 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:30:01,283 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:30:01,283 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:30:01,283 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:30:01,284 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:30:01,284 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:30:01,284 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:30:01,285 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:30:01,285 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:30:01,285 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:30:01,285 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:30:01,286 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:30:01,286 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:30:01,286 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:30:01,286 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:30:01,286 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:30:01,287 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:30:01,287 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:30:01,287 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:30:01,287 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:30:01,287 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:30:01,288 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:30:01,288 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:30:01,288 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:30:01,288 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:30:01,289 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:30:01,289 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:30:01,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:30:01,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:30:01,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:30:01,482 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:30:01,483 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:30:01,483 INFO L431 ainManager$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 17:30:01,484 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 17:30:01,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:30:01,505 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:30:01,507 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:30:01,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:30:01,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:30:01,516 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 05:30:01" (1/1) ... [2023-10-12 17:30:01,523 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 05:30:01" (1/1) ... [2023-10-12 17:30:01,527 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:30:01,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:30:01,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:30:01,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:30:01,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:30:01,536 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 05:30:01" (1/1) ... [2023-10-12 17:30:01,536 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 05:30:01" (1/1) ... [2023-10-12 17:30:01,538 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 05:30:01" (1/1) ... [2023-10-12 17:30:01,538 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 05:30:01" (1/1) ... [2023-10-12 17:30:01,541 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 05:30:01" (1/1) ... [2023-10-12 17:30:01,545 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 05:30:01" (1/1) ... [2023-10-12 17:30:01,545 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 05:30:01" (1/1) ... [2023-10-12 17:30:01,546 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 05:30:01" (1/1) ... [2023-10-12 17:30:01,547 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:30:01,548 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:30:01,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:30:01,548 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:30:01,549 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 05:30:01" (1/1) ... [2023-10-12 17:30:01,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:01,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:01,570 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 17:30:01,587 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 17:30:01,608 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:30:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:30:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:30:01,609 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:30:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:30:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:30:01,609 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:30:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:30:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:30:01,610 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:30:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:30:01,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:30:01,610 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 17:30:01,656 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:30:01,659 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:30:01,730 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:30:01,739 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:30:01,739 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:30:01,740 INFO L201 PluginConnector]: Adding new model multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:30:01 BoogieIcfgContainer [2023-10-12 17:30:01,740 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:30:01,741 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:30:01,741 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:30:01,744 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:30:01,744 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:30:01,744 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 05:30:01" (1/2) ... [2023-10-12 17:30:01,745 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@685859dc and model type multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:30:01, skipping insertion in model container [2023-10-12 17:30:01,745 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:30:01,745 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 05:30:01" (2/2) ... [2023-10-12 17:30:01,746 INFO L332 chiAutomizerObserver]: Analyzing ICFG multiply-verify.wvr.bpl [2023-10-12 17:30:01,788 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:30:01,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 36 transitions, 96 flow [2023-10-12 17:30:01,835 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2023-10-12 17:30:01,836 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:30:01,840 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 17:30:01,866 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 36 transitions, 96 flow [2023-10-12 17:30:01,877 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 30 transitions, 78 flow [2023-10-12 17:30:01,880 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:30:01,904 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 78 flow [2023-10-12 17:30:01,906 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 78 flow [2023-10-12 17:30:01,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 78 flow [2023-10-12 17:30:01,911 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2023-10-12 17:30:01,911 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:30:01,912 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 17:30:01,912 INFO L119 LiptonReduction]: Number of co-enabled transitions 300 [2023-10-12 17:30:02,283 INFO L134 LiptonReduction]: Checked pairs total: 225 [2023-10-12 17:30:02,283 INFO L136 LiptonReduction]: Total number of compositions: 15 [2023-10-12 17:30:02,292 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:30:02,292 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:30:02,293 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:30:02,293 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:30:02,293 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:30:02,293 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:30:02,293 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:30:02,293 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:30:02,293 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 places, 16 transitions, 50 flow [2023-10-12 17:30:02,296 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:02,296 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-10-12 17:30:02,296 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:30:02,296 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:02,298 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:30:02,298 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 places, 16 transitions, 50 flow [2023-10-12 17:30:02,299 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:02,299 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-10-12 17:30:02,299 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:30:02,299 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:02,305 INFO L748 eck$LassoCheckResult]: Stem: 45#[$Ultimate##0]true [67] $Ultimate##0-->L61: Formula: (= v_end_7 v_start_1) InVars {end=v_end_7, start=v_start_1} OutVars{end=v_end_7, start=v_start_1} AuxVars[] AssignedVars[] 47#[L61]true [93] L61-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 49#[L61-1, $Ultimate##0]true [105] $Ultimate##0-->L25-1: Formula: (and (= v_x1_7 0) (= v_i1_6 0)) InVars {} OutVars{i1=v_i1_6, x1=v_x1_7} AuxVars[] AssignedVars[i1, x1] 51#[L61-1, L25-1]true [2023-10-12 17:30:02,306 INFO L750 eck$LassoCheckResult]: Loop: 51#[L61-1, L25-1]true [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] 51#[L61-1, L25-1]true [2023-10-12 17:30:02,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:02,309 INFO L85 PathProgramCache]: Analyzing trace with hash 97166, now seen corresponding path program 1 times [2023-10-12 17:30:02,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:02,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102576469] [2023-10-12 17:30:02,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:02,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:02,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:02,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:02,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:02,381 INFO L85 PathProgramCache]: Analyzing trace with hash 146, now seen corresponding path program 1 times [2023-10-12 17:30:02,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:02,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777511294] [2023-10-12 17:30:02,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:02,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:02,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:02,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:02,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:02,393 INFO L85 PathProgramCache]: Analyzing trace with hash 3012261, now seen corresponding path program 1 times [2023-10-12 17:30:02,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:02,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118508419] [2023-10-12 17:30:02,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:02,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:02,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:02,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:02,451 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:02,451 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:02,451 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:02,451 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:02,452 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:30:02,452 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:02,452 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:02,452 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:02,452 INFO L133 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:30:02,452 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:02,452 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:02,469 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 17:30:02,483 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 17:30:02,509 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:02,509 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:30:02,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:02,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:02,530 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 17:30:02,559 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 17:30:02,563 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:30:02,563 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:30:02,583 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 17:30:02,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:02,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:02,587 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 17:30:02,588 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 17:30:02,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:30:02,590 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:30:02,725 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:30:02,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-10-12 17:30:02,729 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:02,729 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:02,729 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:02,729 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:02,729 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:30:02,729 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:02,729 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:02,729 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:02,729 INFO L133 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:30:02,729 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:02,730 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:02,730 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 17:30:02,746 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 17:30:02,770 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:02,773 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:30:02,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:02,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:02,790 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 17:30:02,791 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 17:30:02,793 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 17:30:02,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:02,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:30:02,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:02,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:02,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:02,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:30:02,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:30:02,805 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:30:02,809 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:30:02,810 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:30:02,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:02,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:02,812 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 17:30:02,813 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 17:30:02,815 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:30:02,815 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:30:02,816 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:30:02,816 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i1, A) = -1*i1 + 1*A Supporting invariants [] [2023-10-12 17:30:02,819 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 17:30:02,821 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:30:02,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:02,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:30:02,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:02,858 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:30:02,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:02,859 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 17:30:02,883 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 17:30:02,884 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:30:02,969 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 6 states and 345 transitions. [2023-10-12 17:30:02,970 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:30:02,972 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:30:02,973 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 17:30:02,977 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 17:30:02,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 200 transitions. [2023-10-12 17:30:02,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:30:02,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:02,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:30:02,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:02,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:30:02,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:02,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 212 transitions, 1100 flow [2023-10-12 17:30:03,015 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 17:30:03,059 INFO L124 PetriNetUnfolderBase]: 221/342 cut-off events. [2023-10-12 17:30:03,059 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-10-12 17:30:03,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 342 events. 221/342 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1123 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 676. Up to 107 conditions per place. [2023-10-12 17:30:03,062 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 36 places, 212 transitions, 1100 flow [2023-10-12 17:30:03,066 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 36 places, 212 transitions, 1100 flow [2023-10-12 17:30:03,066 INFO L430 stractBuchiCegarLoop]: Abstraction has has 36 places, 212 transitions, 1100 flow [2023-10-12 17:30:03,066 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:30:03,066 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 36 places, 212 transitions, 1100 flow [2023-10-12 17:30:03,077 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:03,077 INFO L124 PetriNetUnfolderBase]: 38/61 cut-off events. [2023-10-12 17:30:03,077 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-10-12 17:30:03,077 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:03,077 INFO L748 eck$LassoCheckResult]: Stem: 45#[$Ultimate##0]true [67] $Ultimate##0-->L61: Formula: (= v_end_7 v_start_1) InVars {end=v_end_7, start=v_start_1} OutVars{end=v_end_7, start=v_start_1} AuxVars[] AssignedVars[] 47#[L61]true [93] L61-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 49#[L61-1, $Ultimate##0]true [96] L61-1-->$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] 102#[$Ultimate##0, L62, $Ultimate##0]true [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] 104#[L62, $Ultimate##0, L40-1]true [2023-10-12 17:30:03,078 INFO L750 eck$LassoCheckResult]: Loop: 104#[L62, $Ultimate##0, L40-1]true [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] 104#[L62, $Ultimate##0, L40-1]true [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] 104#[L62, $Ultimate##0, L40-1]true [2023-10-12 17:30:03,078 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:03,078 INFO L85 PathProgramCache]: Analyzing trace with hash 3011978, now seen corresponding path program 1 times [2023-10-12 17:30:03,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:03,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576347552] [2023-10-12 17:30:03,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:03,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:03,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:03,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:03,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:03,097 INFO L85 PathProgramCache]: Analyzing trace with hash 4609, now seen corresponding path program 1 times [2023-10-12 17:30:03,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:03,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306355989] [2023-10-12 17:30:03,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:03,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:03,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:03,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:03,116 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:03,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1400452790, now seen corresponding path program 1 times [2023-10-12 17:30:03,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:03,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615868672] [2023-10-12 17:30:03,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:03,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:03,121 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:03,131 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:03,179 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:03,179 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:03,179 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:03,179 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:03,180 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:30:03,180 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:03,180 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:03,180 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:03,180 INFO L133 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:30:03,180 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:03,180 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:03,181 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 17:30:03,184 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 17:30:03,209 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:03,209 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:30:03,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:03,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:03,213 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 17:30:03,215 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 17:30:03,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:30:03,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:30:03,245 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:30:03,245 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 17:30:03,251 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 17:30:03,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:03,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:03,261 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 17:30:03,270 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 17:30:03,282 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:30:03,282 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:30:03,322 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 17:30:03,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:03,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:03,324 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 17:30:03,326 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 17:30:03,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:30:03,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:30:03,426 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:30:03,430 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 17:30:03,430 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:03,430 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:03,430 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:03,430 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:03,430 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:30:03,431 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:03,431 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:03,431 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:03,431 INFO L133 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:30:03,431 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:03,431 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:03,432 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 17:30:03,436 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 17:30:03,473 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:03,473 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:30:03,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:03,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:03,605 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 17:30:03,608 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 17:30:03,610 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 17:30:03,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:03,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:30:03,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:03,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:03,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:03,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:30:03,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:30:03,633 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:03,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:03,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:03,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:03,653 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 17:30:03,714 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 17:30:03,715 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 17:30:03,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:03,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:30:03,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:03,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:03,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:03,723 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:30:03,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:30:03,738 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:30:03,741 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:30:03,741 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:30:03,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:03,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:03,757 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 17:30:03,758 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 17:30:03,760 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:30:03,760 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:30:03,760 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:30:03,760 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(A, i2) = 1*A - 1*i2 Supporting invariants [] [2023-10-12 17:30:03,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-10-12 17:30:03,782 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:30:03,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:03,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:30:03,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:03,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:30:03,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:03,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:30:03,820 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:30:03,820 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:30:03,925 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 8 states and 440 transitions. [2023-10-12 17:30:03,925 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:30:03,940 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:30:03,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:30:03,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:30:03,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 249 transitions. [2023-10-12 17:30:03,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 249 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:30:03,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:03,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 249 transitions. Stem has 6 letters. Loop has 2 letters. [2023-10-12 17:30:03,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:03,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 249 transitions. Stem has 4 letters. Loop has 4 letters. [2023-10-12 17:30:03,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:03,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 3588 transitions, 26064 flow [2023-10-12 17:30:04,057 INFO L124 PetriNetUnfolderBase]: 661/985 cut-off events. [2023-10-12 17:30:04,057 INFO L125 PetriNetUnfolderBase]: For 188/188 co-relation queries the response was YES. [2023-10-12 17:30:04,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3247 conditions, 985 events. 661/985 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 4049 event pairs, 6 based on Foata normal form. 0/605 useless extension candidates. Maximal degree in co-relation 2942. Up to 340 conditions per place. [2023-10-12 17:30:04,059 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 52 places, 3588 transitions, 26064 flow [2023-10-12 17:30:04,094 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 52 places, 3588 transitions, 26064 flow [2023-10-12 17:30:04,094 INFO L430 stractBuchiCegarLoop]: Abstraction has has 52 places, 3588 transitions, 26064 flow [2023-10-12 17:30:04,094 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:30:04,094 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 52 places, 3588 transitions, 26064 flow [2023-10-12 17:30:04,204 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 17:30:04,248 INFO L124 PetriNetUnfolderBase]: 661/985 cut-off events. [2023-10-12 17:30:04,248 INFO L125 PetriNetUnfolderBase]: For 188/188 co-relation queries the response was YES. [2023-10-12 17:30:04,248 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:30:04,253 INFO L201 PluginConnector]: Adding new model multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:30:04 BoogieIcfgContainer [2023-10-12 17:30:04,253 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:30:04,253 INFO L158 Benchmark]: Toolchain (without parser) took 2747.86ms. Allocated memory was 170.9MB in the beginning and 249.6MB in the end (delta: 78.6MB). Free memory was 118.3MB in the beginning and 193.5MB in the end (delta: -75.2MB). Peak memory consumption was 127.7MB. Max. memory is 8.0GB. [2023-10-12 17:30:04,254 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.23ms. Allocated memory is still 170.9MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:30:04,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.96ms. Allocated memory is still 170.9MB. Free memory was 118.3MB in the beginning and 116.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:30:04,254 INFO L158 Benchmark]: Boogie Preprocessor took 17.03ms. Allocated memory is still 170.9MB. Free memory was 116.7MB in the beginning and 115.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:30:04,255 INFO L158 Benchmark]: RCFGBuilder took 192.38ms. Allocated memory is still 170.9MB. Free memory was 115.7MB in the beginning and 105.7MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:30:04,255 INFO L158 Benchmark]: BuchiAutomizer took 2511.89ms. Allocated memory was 170.9MB in the beginning and 249.6MB in the end (delta: 78.6MB). Free memory was 105.6MB in the beginning and 193.5MB in the end (delta: -87.9MB). Peak memory consumption was 114.1MB. Max. memory is 8.0GB. [2023-10-12 17:30:04,256 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 0.23ms. Allocated memory is still 170.9MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.96ms. Allocated memory is still 170.9MB. Free memory was 118.3MB in the beginning and 116.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.03ms. Allocated memory is still 170.9MB. Free memory was 116.7MB in the beginning and 115.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 192.38ms. Allocated memory is still 170.9MB. Free memory was 115.7MB in the beginning and 105.7MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2511.89ms. Allocated memory was 170.9MB in the beginning and 249.6MB in the end (delta: 78.6MB). Free memory was 105.6MB in the beginning and 193.5MB in the end (delta: -87.9MB). Peak memory consumption was 114.1MB. 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 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 223 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 229 IncrementalHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 120 mSDtfsCounter, 229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 41ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s 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: 22, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 22, dependent conditional: 0, dependent unconditional: 22, 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 17:30:04,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...