/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/Termination.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 18:41:17,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 18:41:17,811 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 18:41:17,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 18:41:17,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 18:41:17,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 18:41:17,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 18:41:17,837 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 18:41:17,838 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 18:41:17,838 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 18:41:17,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 18:41:17,839 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 18:41:17,839 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 18:41:17,839 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 18:41:17,839 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 18:41:17,839 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 18:41:17,839 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 18:41:17,839 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 18:41:17,839 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 18:41:17,839 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 18:41:17,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 18:41:17,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 18:41:17,840 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 18:41:17,840 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 18:41:17,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 18:41:17,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 18:41:17,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 18:41:17,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 18:41:17,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 18:41:17,840 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 18:41:17,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 18:41:17,840 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 18:41:17,840 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 18:41:17,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 18:41:17,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 18:41:17,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:41:17,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 18:41:17,841 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 18:41:17,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 18:41:17,841 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 18:41:17,841 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 18:41:17,841 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 18:41:17,841 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 18:41:18,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 18:41:18,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 18:41:18,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 18:41:18,064 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 18:41:18,065 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 18:41:18,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl [2025-04-26 18:41:18,066 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl' [2025-04-26 18:41:18,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 18:41:18,079 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 18:41:18,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 18:41:18,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 18:41:18,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 18:41:18,086 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 26.04 06:41:18" (1/1) ... [2025-04-26 18:41:18,105 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 26.04 06:41:18" (1/1) ... [2025-04-26 18:41:18,110 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 18:41:18,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 18:41:18,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 18:41:18,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 18:41:18,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 18:41:18,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:18" (1/1) ... [2025-04-26 18:41:18,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:18" (1/1) ... [2025-04-26 18:41:18,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:18" (1/1) ... [2025-04-26 18:41:18,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:18" (1/1) ... [2025-04-26 18:41:18,120 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:18" (1/1) ... [2025-04-26 18:41:18,120 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:18" (1/1) ... [2025-04-26 18:41:18,122 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:18" (1/1) ... [2025-04-26 18:41:18,122 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:18" (1/1) ... [2025-04-26 18:41:18,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:18" (1/1) ... [2025-04-26 18:41:18,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 18:41:18,130 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 18:41:18,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 18:41:18,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 18:41:18,130 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:18" (1/1) ... [2025-04-26 18:41:18,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:41:18,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:18,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:18,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-26 18:41:18,179 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 18:41:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 18:41:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 18:41:18,179 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 18:41:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 18:41:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 18:41:18,179 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 18:41:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 18:41:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 18:41:18,179 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 18:41:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 18:41:18,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 18:41:18,180 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 18:41:18,219 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 18:41:18,221 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 18:41:18,314 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 18:41:18,314 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 18:41:18,328 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 18:41:18,328 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 18:41:18,329 INFO L201 PluginConnector]: Adding new model multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:41:18 BoogieIcfgContainer [2025-04-26 18:41:18,329 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 18:41:18,329 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 18:41:18,329 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 18:41:18,334 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 18:41:18,334 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:41:18,334 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:18" (1/2) ... [2025-04-26 18:41:18,335 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d75ac5a and model type multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 06:41:18, skipping insertion in model container [2025-04-26 18:41:18,335 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:41:18,335 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:41:18" (2/2) ... [2025-04-26 18:41:18,336 INFO L376 chiAutomizerObserver]: Analyzing ICFG multiply-verify.wvr.bpl [2025-04-26 18:41:18,380 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-26 18:41:18,420 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 18:41:18,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 18:41:18,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:18,422 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:18,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-26 18:41:18,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 36 transitions, 93 flow [2025-04-26 18:41:18,505 INFO L116 PetriNetUnfolderBase]: 2/30 cut-off events. [2025-04-26 18:41:18,507 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-26 18:41:18,510 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. [2025-04-26 18:41:18,510 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 36 transitions, 93 flow [2025-04-26 18:41:18,514 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 30 transitions, 78 flow [2025-04-26 18:41:18,514 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 38 places, 30 transitions, 78 flow [2025-04-26 18:41:18,515 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 30 transitions, 78 flow [2025-04-26 18:41:18,553 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 371 states, 369 states have (on average 2.747967479674797) internal successors, (in total 1014), 370 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:41:18,554 INFO L171 actionProvider$Eager]: Constructed initial Büchi automaton abstraction (from Petri net) that has 371 states, 369 states have (on average 2.747967479674797) internal successors, (in total 1014), 370 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:41:18,556 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 18:41:18,683 WARN L140 AmpleReduction]: Number of pruned transitions: 259 [2025-04-26 18:41:18,683 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 18:41:18,685 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 53 [2025-04-26 18:41:18,685 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:30 [2025-04-26 18:41:18,685 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:156 [2025-04-26 18:41:18,685 WARN L145 AmpleReduction]: Times succ was already a loop node:7 [2025-04-26 18:41:18,686 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:68 [2025-04-26 18:41:18,686 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 18:41:18,686 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 240 states, 238 states have (on average 1.6680672268907564) internal successors, (in total 397), 239 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:41:18,692 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 18:41:18,692 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 18:41:18,693 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 18:41:18,693 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 18:41:18,693 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 18:41:18,693 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 18:41:18,693 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 18:41:18,693 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 18:41:18,694 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 240 states, 238 states have (on average 1.6680672268907564) internal successors, (in total 397), 239 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:41:18,712 INFO L131 ngComponentsAnalysis]: Automaton has 45 accepting balls. 165 [2025-04-26 18:41:18,712 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:41:18,712 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:41:18,716 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 18:41:18,716 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:41:18,716 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 18:41:18,716 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 240 states, 238 states have (on average 1.6680672268907564) internal successors, (in total 397), 239 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:41:18,720 INFO L131 ngComponentsAnalysis]: Automaton has 45 accepting balls. 165 [2025-04-26 18:41:18,720 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:41:18,720 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:41:18,721 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 18:41:18,721 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:41:18,724 INFO L752 eck$LassoCheckResult]: Stem: "[67] $Ultimate##0-->L61: Formula: (= v_end_7 v_start_1) InVars {end=v_end_7, start=v_start_1} OutVars{end=v_end_7, start=v_start_1} AuxVars[] AssignedVars[]" "[93] L61-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[72] $Ultimate##0-->L24: Formula: (= v_x1_1 0) InVars {} OutVars{x1=v_x1_1} AuxVars[] AssignedVars[x1]" "[73] L24-->L25-1: Formula: (= v_i1_1 0) InVars {} OutVars{i1=v_i1_1} AuxVars[] AssignedVars[i1]" [2025-04-26 18:41:18,724 INFO L754 eck$LassoCheckResult]: Loop: "[75] L25-1-->L26: Formula: (< v_i1_2 v_A_1) InVars {A=v_A_1, i1=v_i1_2} OutVars{A=v_A_1, i1=v_i1_2} AuxVars[] AssignedVars[]" "[77] L26-->L27: Formula: (= v_x1_2 (+ v_x1_3 v_B_1)) InVars {x1=v_x1_3, B=v_B_1} OutVars{x1=v_x1_2, B=v_B_1} AuxVars[] AssignedVars[x1]" "[79] L27-->L25-1: Formula: (= (+ v_i1_4 1) v_i1_3) InVars {i1=v_i1_4} OutVars{i1=v_i1_3} AuxVars[] AssignedVars[i1]" [2025-04-26 18:41:18,729 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:41:18,730 INFO L85 PathProgramCache]: Analyzing trace with hash 3011196, now seen corresponding path program 1 times [2025-04-26 18:41:18,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:41:18,734 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331638859] [2025-04-26 18:41:18,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:41:18,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:41:18,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:41:18,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:41:18,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:18,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:18,777 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:41:18,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:41:18,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:41:18,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:18,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:18,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:41:18,792 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:41:18,792 INFO L85 PathProgramCache]: Analyzing trace with hash 104332, now seen corresponding path program 1 times [2025-04-26 18:41:18,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:41:18,793 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624655114] [2025-04-26 18:41:18,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:41:18,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:41:18,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:41:18,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:41:18,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:18,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:18,803 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:41:18,807 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:41:18,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:41:18,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:18,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:18,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:41:18,813 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:41:18,814 INFO L85 PathProgramCache]: Analyzing trace with hash -487698639, now seen corresponding path program 1 times [2025-04-26 18:41:18,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:41:18,814 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223751629] [2025-04-26 18:41:18,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:41:18,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:41:18,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 18:41:18,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 18:41:18,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:18,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:18,823 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:41:18,825 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 18:41:18,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 18:41:18,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:18,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:18,831 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:41:18,887 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:41:18,888 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:41:18,888 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:41:18,888 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:41:18,888 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:41:18,888 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:18,888 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:41:18,888 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:41:18,888 INFO L132 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 18:41:18,888 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:41:18,888 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:41:18,928 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:41:18,936 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:41:18,995 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:41:18,995 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:41:18,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:18,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:18,998 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:18,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 18:41:19,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:41:19,000 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:41:19,014 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:41:19,014 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x1=0, B=0} Honda state: {x1=0, B=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:41:19,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-04-26 18:41:19,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:19,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:19,022 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:19,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 18:41:19,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:41:19,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:41:19,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-04-26 18:41:19,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:19,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:19,043 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:19,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 18:41:19,044 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:41:19,044 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:41:19,115 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:41:19,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-04-26 18:41:19,120 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:41:19,120 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:41:19,120 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:41:19,120 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:41:19,120 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:41:19,120 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:19,120 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:41:19,120 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:41:19,120 INFO L132 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 18:41:19,120 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:41:19,120 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:41:19,121 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:41:19,128 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:41:19,165 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:41:19,168 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:41:19,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:19,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:19,183 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:19,188 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 [2025-04-26 18:41:19,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 18:41:19,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:41:19,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:41:19,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:41:19,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:41:19,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:41:19,223 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:41:19,223 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:41:19,229 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:41:19,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 18:41:19,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:19,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:19,241 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:19,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 18:41:19,244 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 [2025-04-26 18:41:19,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:41:19,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:41:19,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:41:19,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:41:19,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:41:19,256 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:41:19,256 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:41:19,259 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:41:19,262 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:41:19,262 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 18:41:19,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:19,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:19,351 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:19,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 18:41:19,353 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:41:19,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 18:41:19,356 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:41:19,356 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:41:19,357 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(i1, A) = -1*i1 + 1*A Supporting invariants [] [2025-04-26 18:41:19,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 18:41:19,364 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:41:19,383 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:41:19,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:41:19,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:41:19,394 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:19,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:41:19,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:41:19,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:41:19,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:41:19,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:41:19,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:19,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:41:19,408 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:41:19,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:41:19,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:41:19,447 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 [2025-04-26 18:41:19,449 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 240 states, 238 states have (on average 1.6680672268907564) internal successors, (in total 397), 239 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:41:19,561 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 240 states, 238 states have (on average 1.6680672268907564) internal successors, (in total 397), 239 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 514 states and 874 transitions. Complement of second has 7 states. [2025-04-26 18:41:19,562 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 18:41:19,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:41:19,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 56 transitions. [2025-04-26 18:41:19,571 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 4 letters. Loop has 3 letters. [2025-04-26 18:41:19,572 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:41:19,572 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 7 letters. Loop has 3 letters. [2025-04-26 18:41:19,572 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:41:19,572 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 4 letters. Loop has 6 letters. [2025-04-26 18:41:19,573 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:41:19,573 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 514 states and 874 transitions. [2025-04-26 18:41:19,585 INFO L131 ngComponentsAnalysis]: Automaton has 19 accepting balls. 57 [2025-04-26 18:41:19,590 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 514 states to 166 states and 276 transitions. [2025-04-26 18:41:19,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2025-04-26 18:41:19,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2025-04-26 18:41:19,593 INFO L74 IsDeterministic]: Start isDeterministic. Operand 166 states and 276 transitions. [2025-04-26 18:41:19,594 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:41:19,594 INFO L218 hiAutomatonCegarLoop]: Abstraction has 166 states and 276 transitions. [2025-04-26 18:41:19,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states and 276 transitions. [2025-04-26 18:41:19,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 149. [2025-04-26 18:41:19,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 149 states have (on average 1.6778523489932886) internal successors, (in total 250), 148 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:41:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 250 transitions. [2025-04-26 18:41:19,619 INFO L240 hiAutomatonCegarLoop]: Abstraction has 149 states and 250 transitions. [2025-04-26 18:41:19,619 INFO L438 stractBuchiCegarLoop]: Abstraction has 149 states and 250 transitions. [2025-04-26 18:41:19,620 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 18:41:19,620 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 250 transitions. [2025-04-26 18:41:19,621 INFO L131 ngComponentsAnalysis]: Automaton has 19 accepting balls. 57 [2025-04-26 18:41:19,621 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:41:19,621 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:41:19,621 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 18:41:19,621 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:41:19,622 INFO L752 eck$LassoCheckResult]: Stem: "[67] $Ultimate##0-->L61: Formula: (= v_end_7 v_start_1) InVars {end=v_end_7, start=v_start_1} OutVars{end=v_end_7, start=v_start_1} AuxVars[] AssignedVars[]" "[93] L61-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[72] $Ultimate##0-->L24: Formula: (= v_x1_1 0) InVars {} OutVars{x1=v_x1_1} AuxVars[] AssignedVars[x1]" "[73] L24-->L25-1: Formula: (= v_i1_1 0) InVars {} OutVars{i1=v_i1_1} AuxVars[] AssignedVars[i1]" "[74] L25-1-->L29: Formula: (<= v_A_2 v_i1_5) InVars {A=v_A_2, i1=v_i1_5} OutVars{A=v_A_2, i1=v_i1_5} AuxVars[] AssignedVars[]" "[96] L61-1-->$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]" "[80] $Ultimate##0-->L39: Formula: (= v_x2_4 0) InVars {} OutVars{x2=v_x2_4} AuxVars[] AssignedVars[x2]" "[81] L39-->L40-1: Formula: (= v_i2_5 0) InVars {} OutVars{i2=v_i2_5} AuxVars[] AssignedVars[i2]" [2025-04-26 18:41:19,622 INFO L754 eck$LassoCheckResult]: Loop: "[83] L40-1-->L41: Formula: (< v_i2_1 v_A_3) InVars {A=v_A_3, i2=v_i2_1} OutVars{A=v_A_3, i2=v_i2_1} AuxVars[] AssignedVars[]" "[85] L41-->L42: Formula: (= v_x2_1 (+ v_x2_2 v_B_2)) InVars {x2=v_x2_2, B=v_B_2} OutVars{x2=v_x2_1, B=v_B_2} AuxVars[] AssignedVars[x2]" "[87] L42-->L40-1: Formula: (= v_i2_2 (+ v_i2_3 1)) InVars {i2=v_i2_3} OutVars{i2=v_i2_2} AuxVars[] AssignedVars[i2]" [2025-04-26 18:41:19,622 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:41:19,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2061199955, now seen corresponding path program 1 times [2025-04-26 18:41:19,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:41:19,622 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762689757] [2025-04-26 18:41:19,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:41:19,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:41:19,624 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 18:41:19,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 18:41:19,628 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:19,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:19,628 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:41:19,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 18:41:19,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 18:41:19,633 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:19,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:19,634 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:41:19,635 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:41:19,635 INFO L85 PathProgramCache]: Analyzing trace with hash 112276, now seen corresponding path program 1 times [2025-04-26 18:41:19,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:41:19,635 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181116783] [2025-04-26 18:41:19,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:41:19,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:41:19,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:41:19,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:41:19,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:19,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:19,641 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:41:19,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:41:19,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:41:19,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:19,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:19,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:41:19,646 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:41:19,646 INFO L85 PathProgramCache]: Analyzing trace with hash 60510978, now seen corresponding path program 1 times [2025-04-26 18:41:19,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:41:19,646 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435015193] [2025-04-26 18:41:19,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:41:19,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:41:19,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-26 18:41:19,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-26 18:41:19,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:19,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:41:19,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:41:19,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:41:19,709 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435015193] [2025-04-26 18:41:19,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435015193] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:41:19,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:41:19,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-26 18:41:19,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194801382] [2025-04-26 18:41:19,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:41:19,730 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:41:19,730 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:41:19,730 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:41:19,730 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:41:19,730 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:41:19,730 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:19,730 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:41:19,730 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:41:19,730 INFO L132 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 18:41:19,730 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:41:19,730 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:41:19,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:41:19,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:41:19,760 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:41:19,760 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:41:19,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:19,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:19,763 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:19,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 18:41:19,766 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:41:19,766 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:41:19,776 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:41:19,777 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x2=0, B=0} Honda state: {x2=0, B=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:41:19,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-04-26 18:41:19,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:19,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:19,784 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:19,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 18:41:19,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:41:19,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:41:19,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-04-26 18:41:19,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:19,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:19,805 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:19,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 18:41:19,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:41:19,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:41:19,871 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:41:19,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-04-26 18:41:19,875 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:41:19,875 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:41:19,875 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:41:19,875 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:41:19,875 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:41:19,875 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:19,875 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:41:19,876 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:41:19,876 INFO L132 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 18:41:19,876 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:41:19,876 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:41:19,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:41:19,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:41:19,907 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:41:19,907 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:41:19,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:19,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:19,910 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:19,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-04-26 18:41:19,912 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 [2025-04-26 18:41:19,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:41:19,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:41:19,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:41:19,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:41:19,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:41:19,923 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:41:19,923 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:41:19,924 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:41:19,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-04-26 18:41:19,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:19,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:19,931 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:19,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-04-26 18:41:19,933 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 [2025-04-26 18:41:19,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:41:19,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:41:19,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:41:19,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:41:19,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:41:19,944 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:41:19,944 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:41:19,946 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:41:19,948 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 18:41:19,948 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:41:19,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:19,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:19,950 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:19,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-04-26 18:41:19,952 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:41:19,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-04-26 18:41:19,955 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:41:19,955 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:41:19,955 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(i2, A) = -1*i2 + 1*A Supporting invariants [] [2025-04-26 18:41:19,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-04-26 18:41:19,963 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:41:19,975 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:41:19,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 18:41:19,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 18:41:19,985 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:19,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:41:19,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:41:19,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:41:20,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:41:20,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:41:20,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:20,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:41:20,002 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:41:20,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:41:20,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:41:20,023 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 [2025-04-26 18:41:20,024 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 149 states and 250 transitions. cyclomatic complexity: 131 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:41:20,065 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 149 states and 250 transitions. cyclomatic complexity: 131. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 308 states and 516 transitions. Complement of second has 6 states. [2025-04-26 18:41:20,066 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 18:41:20,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:41:20,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 50 transitions. [2025-04-26 18:41:20,067 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 8 letters. Loop has 3 letters. [2025-04-26 18:41:20,067 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:41:20,067 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 11 letters. Loop has 3 letters. [2025-04-26 18:41:20,067 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:41:20,067 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 8 letters. Loop has 6 letters. [2025-04-26 18:41:20,067 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:41:20,068 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 308 states and 516 transitions. [2025-04-26 18:41:20,071 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:41:20,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 308 states to 0 states and 0 transitions. [2025-04-26 18:41:20,071 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 18:41:20,071 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 18:41:20,071 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 18:41:20,071 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 18:41:20,072 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:41:20,072 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:41:20,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:41:20,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-26 18:41:20,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-26 18:41:20,073 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (in total 11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:41:20,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:41:20,075 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-04-26 18:41:20,075 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-04-26 18:41:20,075 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:41:20,075 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-04-26 18:41:20,075 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 18:41:20,075 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 18:41:20,075 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 18:41:20,075 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 18:41:20,075 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:41:20,075 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:41:20,075 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-26 18:41:20,076 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:41:20,076 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 18:41:20,076 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 18:41:20,076 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:41:20,076 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 18:41:20,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-26 18:41:20,087 INFO L201 PluginConnector]: Adding new model multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 06:41:20 BoogieIcfgContainer [2025-04-26 18:41:20,087 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 18:41:20,088 INFO L158 Benchmark]: Toolchain (without parser) took 2008.32ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 87.5MB in the beginning and 63.9MB in the end (delta: 23.6MB). Peak memory consumption was 18.0MB. Max. memory is 8.0GB. [2025-04-26 18:41:20,088 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:41:20,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.27ms. Allocated memory is still 159.4MB. Free memory was 87.5MB in the beginning and 85.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:41:20,088 INFO L158 Benchmark]: Boogie Preprocessor took 17.04ms. Allocated memory is still 159.4MB. Free memory was 85.7MB in the beginning and 84.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:41:20,089 INFO L158 Benchmark]: RCFGBuilder took 199.01ms. Allocated memory is still 159.4MB. Free memory was 84.5MB in the beginning and 74.7MB in the end (delta: 9.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 18:41:20,089 INFO L158 Benchmark]: BuchiAutomizer took 1757.90ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 74.7MB in the beginning and 63.9MB in the end (delta: 10.9MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. [2025-04-26 18:41:20,090 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 0.16ms. Allocated memory is still 159.4MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.27ms. Allocated memory is still 159.4MB. Free memory was 87.5MB in the beginning and 85.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 17.04ms. Allocated memory is still 159.4MB. Free memory was 85.7MB in the beginning and 84.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 199.01ms. Allocated memory is still 159.4MB. Free memory was 84.5MB in the beginning and 74.7MB in the end (delta: 9.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 1757.90ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 74.7MB in the beginning and 63.9MB in the end (delta: 10.9MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 17 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, 79 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 46 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp70 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 60ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.2s InitialAbstraction: Time to compute Ample Reduction [ms]: 271, Number of transitions in reduction automaton: 397, Number of states in reduction automaton: 240, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function A + -1 * i1 and consists of 5 locations. One deterministic module has affine ranking function -1 * i2 + A and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 18:41:20,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...