/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/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/2_thr/ie3.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:45:30,259 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:45:30,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:45:30,315 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:45:30,315 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:45:30,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:45:30,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:45:30,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:45:30,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:45:30,331 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:45:30,331 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:45:30,331 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:45:30,331 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:45:30,331 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:45:30,331 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:45:30,331 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:45:30,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:45:30,332 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:45:30,332 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:45:30,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:45:30,333 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:45:30,333 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:45:30,333 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:45:30,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:45:30,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:45:30,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:45:30,563 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:45:30,563 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:45:30,565 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/2_thr/ie3.c.bpl [2025-02-17 22:45:30,566 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/2_thr/ie3.c.bpl' [2025-02-17 22:45:30,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:45:30,583 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:45:30,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:30,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:45:30,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:45:30,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ie3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ie3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,600 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:45:30,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:30,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:45:30,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:45:30,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:45:30,607 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ie3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ie3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,608 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ie3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,608 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ie3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,610 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "ie3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ie3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,612 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ie3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "ie3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,613 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ie3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,615 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:45:30,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:45:30,616 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:45:30,616 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:45:30,617 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ie3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:30,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:30,644 INFO L229 MonitoredProcess]: Starting monitored process 1 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) [2025-02-17 22:45:30,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:45:30,668 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:45:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:45:30,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:45:30,668 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:45:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:45:30,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:45:30,668 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:45:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:45:30,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:45:30,669 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:45:30,705 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:45:30,707 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:45:30,791 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:45:30,791 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:45:30,800 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:45:30,800 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:45:30,801 INFO L201 PluginConnector]: Adding new model ie3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:30 BoogieIcfgContainer [2025-02-17 22:45:30,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:45:30,802 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:45:30,802 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:45:30,806 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:45:30,806 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:30,806 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "ie3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/2) ... [2025-02-17 22:45:30,807 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c2da5d6 and model type ie3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:45:30, skipping insertion in model container [2025-02-17 22:45:30,808 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:30,808 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "ie3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:30" (2/2) ... [2025-02-17 22:45:30,809 INFO L363 chiAutomizerObserver]: Analyzing ICFG ie3.c.bpl [2025-02-17 22:45:30,864 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-17 22:45:30,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 32 transitions, 78 flow [2025-02-17 22:45:30,918 INFO L124 PetriNetUnfolderBase]: 4/28 cut-off events. [2025-02-17 22:45:30,920 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-17 22:45:30,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 28 events. 4/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2025-02-17 22:45:30,922 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 32 transitions, 78 flow [2025-02-17 22:45:30,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 28 transitions, 68 flow [2025-02-17 22:45:30,933 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:45:30,933 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:45:30,933 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:45:30,933 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:45:30,933 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:45:30,933 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:45:30,933 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:45:30,933 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:45:30,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:45:30,968 INFO L131 ngComponentsAnalysis]: Automaton has 24 accepting balls. 96 [2025-02-17 22:45:30,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:30,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:30,971 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:30,971 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:30,971 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:45:30,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 123 states, but on-demand construction may add more states [2025-02-17 22:45:30,976 INFO L131 ngComponentsAnalysis]: Automaton has 24 accepting balls. 96 [2025-02-17 22:45:30,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:30,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:30,976 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:30,976 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:30,979 INFO L752 eck$LassoCheckResult]: Stem: "[66] $Ultimate##0-->L13: Formula: (= v_f_7 0) InVars {} OutVars{f=v_f_7} AuxVars[] AssignedVars[f]" "[94] L13-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-02-17 22:45:30,980 INFO L754 eck$LassoCheckResult]: Loop: "[71] L22-->L24: Formula: (< v_x1_1 v_z_2) InVars {x1=v_x1_1, z=v_z_2} OutVars{x1=v_x1_1, z=v_z_2} AuxVars[] AssignedVars[]" "[73] L24-->L25: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[75] L25-->L22: Formula: (= (+ v_c_2 1) v_c_1) InVars {c=v_c_2} OutVars{c=v_c_1} AuxVars[] AssignedVars[c]" [2025-02-17 22:45:30,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:30,983 INFO L85 PathProgramCache]: Analyzing trace with hash 3101, now seen corresponding path program 1 times [2025-02-17 22:45:30,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:30,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169492489] [2025-02-17 22:45:30,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:30,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:31,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:31,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:31,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,032 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:31,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:31,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:31,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:31,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:31,051 INFO L85 PathProgramCache]: Analyzing trace with hash 100360, now seen corresponding path program 1 times [2025-02-17 22:45:31,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:31,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034707736] [2025-02-17 22:45:31,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:31,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:31,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:31,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:31,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,057 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:31,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:31,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:31,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,061 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:31,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:31,062 INFO L85 PathProgramCache]: Analyzing trace with hash 92452460, now seen corresponding path program 1 times [2025-02-17 22:45:31,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:31,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967995442] [2025-02-17 22:45:31,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:31,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:31,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:31,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:31,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,066 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:31,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:31,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:31,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:31,116 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:31,116 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:31,117 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:31,117 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:31,117 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:31,117 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,117 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:31,117 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:31,117 INFO L132 ssoRankerPreferences]: Filename of dumped script: ie3.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:31,117 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:31,117 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:31,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,179 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:31,179 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:31,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,182 INFO L229 MonitoredProcess]: Starting monitored process 2 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) [2025-02-17 22:45:31,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:45:31,185 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:31,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:31,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-17 22:45:31,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,251 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) [2025-02-17 22:45:31,252 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 [2025-02-17 22:45:31,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:31,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:31,293 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:31,293 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=-3}, {c=-3}, {c=7}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-02-17 22:45:31,298 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 [2025-02-17 22:45:31,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,300 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) [2025-02-17 22:45:31,302 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 [2025-02-17 22:45:31,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:31,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:31,319 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 [2025-02-17 22:45:31,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,322 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) [2025-02-17 22:45:31,324 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 [2025-02-17 22:45:31,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:31,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:31,395 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:31,399 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 [2025-02-17 22:45:31,399 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:31,399 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:31,400 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:31,400 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:31,400 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:31,400 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,400 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:31,400 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:31,400 INFO L132 ssoRankerPreferences]: Filename of dumped script: ie3.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:31,400 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:31,400 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:31,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,404 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,440 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:31,442 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:31,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,445 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) [2025-02-17 22:45:31,446 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 [2025-02-17 22:45:31,448 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 [2025-02-17 22:45:31,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:31,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:31,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:31,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:31,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:31,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:31,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:31,468 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:31,473 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 [2025-02-17 22:45:31,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,476 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) [2025-02-17 22:45:31,479 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 [2025-02-17 22:45:31,480 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 [2025-02-17 22:45:31,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:31,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:31,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:31,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:31,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:31,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:31,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:31,496 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:31,499 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:31,499 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:31,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,504 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) [2025-02-17 22:45:31,505 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 [2025-02-17 22:45:31,506 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:31,506 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:31,506 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:31,506 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x1) = 1*z - 1*x1 Supporting invariants [] [2025-02-17 22:45:31,512 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 [2025-02-17 22:45:31,514 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:31,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:31,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:31,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:31,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:31,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:31,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:31,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:31,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:31,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:31,570 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:31,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:31,641 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 [2025-02-17 22:45:31,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:31,734 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:45:31,741 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 123 states, but on-demand construction may add more states Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:31,867 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 123 states, but on-demand construction may add more states. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 278 states and 622 transitions. Complement of second has 6 states. [2025-02-17 22:45:31,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:31,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:31,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 55 transitions. [2025-02-17 22:45:31,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 55 transitions. Stem has 2 letters. Loop has 3 letters. [2025-02-17 22:45:31,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:31,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 55 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:45:31,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:31,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 55 transitions. Stem has 2 letters. Loop has 6 letters. [2025-02-17 22:45:31,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:31,878 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 278 states and 622 transitions. [2025-02-17 22:45:31,886 INFO L131 ngComponentsAnalysis]: Automaton has 23 accepting balls. 81 [2025-02-17 22:45:31,890 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 278 states to 179 states and 406 transitions. [2025-02-17 22:45:31,891 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 113 [2025-02-17 22:45:31,892 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 136 [2025-02-17 22:45:31,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 179 states and 406 transitions. [2025-02-17 22:45:31,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:31,895 INFO L218 hiAutomatonCegarLoop]: Abstraction has 179 states and 406 transitions. [2025-02-17 22:45:31,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states and 406 transitions. [2025-02-17 22:45:31,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 157. [2025-02-17 22:45:31,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 157 states have (on average 2.248407643312102) internal successors, (353), 156 states have internal predecessors, (353), 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) [2025-02-17 22:45:31,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 353 transitions. [2025-02-17 22:45:31,921 INFO L240 hiAutomatonCegarLoop]: Abstraction has 157 states and 353 transitions. [2025-02-17 22:45:31,921 INFO L432 stractBuchiCegarLoop]: Abstraction has 157 states and 353 transitions. [2025-02-17 22:45:31,921 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:45:31,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 157 states and 353 transitions. [2025-02-17 22:45:31,924 INFO L131 ngComponentsAnalysis]: Automaton has 23 accepting balls. 81 [2025-02-17 22:45:31,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:31,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:31,924 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:31,924 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:31,925 INFO L752 eck$LassoCheckResult]: Stem: "[66] $Ultimate##0-->L13: Formula: (= v_f_7 0) InVars {} OutVars{f=v_f_7} AuxVars[] AssignedVars[f]" "[94] L13-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[97] L13-1-->L39: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-02-17 22:45:31,925 INFO L754 eck$LassoCheckResult]: Loop: "[82] L39-->L41: Formula: (< v_x3_1 v_z_6) InVars {x3=v_x3_1, z=v_z_6} OutVars{x3=v_x3_1, z=v_z_6} AuxVars[] AssignedVars[]" "[84] L41-->L42: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" "[86] L42-->L39: Formula: (= v_c_7 (+ v_c_8 1)) InVars {c=v_c_8} OutVars{c=v_c_7} AuxVars[] AssignedVars[c]" [2025-02-17 22:45:31,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:31,925 INFO L85 PathProgramCache]: Analyzing trace with hash 96228, now seen corresponding path program 1 times [2025-02-17 22:45:31,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:31,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639869289] [2025-02-17 22:45:31,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:31,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:31,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:31,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:31,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,930 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:31,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:31,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:31,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,932 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:31,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:31,933 INFO L85 PathProgramCache]: Analyzing trace with hash 111283, now seen corresponding path program 1 times [2025-02-17 22:45:31,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:31,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924312853] [2025-02-17 22:45:31,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:31,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:31,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:31,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:31,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,935 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:31,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:31,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:31,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,938 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:31,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:31,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1428157456, now seen corresponding path program 1 times [2025-02-17 22:45:31,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:31,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847250113] [2025-02-17 22:45:31,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:31,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:31,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:31,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:31,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,942 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:31,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:31,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:31,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:31,962 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:31,962 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:31,962 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:31,962 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:31,962 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:31,962 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,962 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:31,962 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:31,962 INFO L132 ssoRankerPreferences]: Filename of dumped script: ie3.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:31,962 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:31,962 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:31,962 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,967 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,989 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:31,989 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:31,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,991 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) [2025-02-17 22:45:31,993 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 [2025-02-17 22:45:31,993 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:31,993 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:32,008 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 [2025-02-17 22:45:32,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,010 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) [2025-02-17 22:45:32,011 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 [2025-02-17 22:45:32,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:32,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:32,075 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:32,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:32,079 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:32,079 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:32,079 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:32,079 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:32,079 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:32,079 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,079 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:32,079 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:32,079 INFO L132 ssoRankerPreferences]: Filename of dumped script: ie3.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:32,079 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:32,079 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:32,080 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,085 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,107 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:32,107 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:32,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,110 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) [2025-02-17 22:45:32,111 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 [2025-02-17 22:45:32,112 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 [2025-02-17 22:45:32,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:32,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:32,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:32,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:32,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:32,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:32,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:32,126 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:32,130 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:32,130 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:32,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,135 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) [2025-02-17 22:45:32,144 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 [2025-02-17 22:45:32,145 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:32,145 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:32,145 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:32,145 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x3, z) = -1*x3 + 1*z Supporting invariants [] [2025-02-17 22:45:32,155 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 [2025-02-17 22:45:32,156 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:32,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:32,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:32,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:32,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:32,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:32,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:32,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:32,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:32,189 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:32,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:32,229 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:45:32,230 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 157 states and 353 transitions. cyclomatic complexity: 226 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2025-02-17 22:45:32,291 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 157 states and 353 transitions. cyclomatic complexity: 226. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 383 states and 922 transitions. Complement of second has 6 states. [2025-02-17 22:45:32,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:32,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2025-02-17 22:45:32,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2025-02-17 22:45:32,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 64 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-17 22:45:32,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:32,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 64 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-17 22:45:32,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:32,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 64 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-17 22:45:32,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:32,296 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 383 states and 922 transitions. [2025-02-17 22:45:32,301 INFO L131 ngComponentsAnalysis]: Automaton has 17 accepting balls. 57 [2025-02-17 22:45:32,306 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 383 states to 265 states and 631 transitions. [2025-02-17 22:45:32,307 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2025-02-17 22:45:32,307 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 163 [2025-02-17 22:45:32,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 265 states and 631 transitions. [2025-02-17 22:45:32,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:32,307 INFO L218 hiAutomatonCegarLoop]: Abstraction has 265 states and 631 transitions. [2025-02-17 22:45:32,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 631 transitions. [2025-02-17 22:45:32,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 227. [2025-02-17 22:45:32,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 227 states have (on average 2.4405286343612334) internal successors, (554), 226 states have internal predecessors, (554), 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) [2025-02-17 22:45:32,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 554 transitions. [2025-02-17 22:45:32,323 INFO L240 hiAutomatonCegarLoop]: Abstraction has 227 states and 554 transitions. [2025-02-17 22:45:32,323 INFO L432 stractBuchiCegarLoop]: Abstraction has 227 states and 554 transitions. [2025-02-17 22:45:32,323 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:45:32,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states and 554 transitions. [2025-02-17 22:45:32,324 INFO L131 ngComponentsAnalysis]: Automaton has 17 accepting balls. 57 [2025-02-17 22:45:32,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:32,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:32,324 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:45:32,324 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:32,325 INFO L752 eck$LassoCheckResult]: Stem: "[66] $Ultimate##0-->L13: Formula: (= v_f_7 0) InVars {} OutVars{f=v_f_7} AuxVars[] AssignedVars[f]" "[94] L13-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[70] L22-->L27: Formula: (<= v_z_3 v_x1_4) InVars {x1=v_x1_4, z=v_z_3} OutVars{x1=v_x1_4, z=v_z_3} AuxVars[] AssignedVars[]" "[72] L27-->L28: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" "[74] L28-->L29-1: Formula: (<= 2 v_f_3) InVars {f=v_f_3} OutVars{f=v_f_3} AuxVars[] AssignedVars[]" [2025-02-17 22:45:32,325 INFO L754 eck$LassoCheckResult]: Loop: "[77] L29-1-->L31: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" "[79] L31-->L32: Formula: (= v_x2_3 (+ v_x2_4 1)) InVars {x2=v_x2_4} OutVars{x2=v_x2_3} AuxVars[] AssignedVars[x2]" "[80] L32-->L29-1: Formula: (= v_c_4 (+ v_c_3 1)) InVars {c=v_c_4} OutVars{c=v_c_3} AuxVars[] AssignedVars[c]" [2025-02-17 22:45:32,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,325 INFO L85 PathProgramCache]: Analyzing trace with hash 92451467, now seen corresponding path program 1 times [2025-02-17 22:45:32,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:32,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083735840] [2025-02-17 22:45:32,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:32,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:32,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:32,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:32,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:32,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:32,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:32,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083735840] [2025-02-17 22:45:32,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083735840] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:32,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:32,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:45:32,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782610965] [2025-02-17 22:45:32,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:32,371 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-17 22:45:32,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,371 INFO L85 PathProgramCache]: Analyzing trace with hash 106317, now seen corresponding path program 1 times [2025-02-17 22:45:32,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:32,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014657934] [2025-02-17 22:45:32,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:32,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:32,373 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:32,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:32,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,374 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:32,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:32,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:32,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:32,394 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:32,394 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:32,394 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:32,394 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:32,394 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:32,394 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,394 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:32,394 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:32,394 INFO L132 ssoRankerPreferences]: Filename of dumped script: ie3.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:32,394 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:32,394 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:32,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,420 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:32,421 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:32,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,422 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) [2025-02-17 22:45:32,424 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 [2025-02-17 22:45:32,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:32,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:32,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:32,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,442 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) [2025-02-17 22:45:32,444 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 [2025-02-17 22:45:32,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:32,445 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:32,504 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:32,508 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 [2025-02-17 22:45:32,508 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:32,508 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:32,508 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:32,508 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:32,508 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:32,508 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,508 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:32,508 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:32,508 INFO L132 ssoRankerPreferences]: Filename of dumped script: ie3.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:32,508 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:32,508 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:32,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,542 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:32,542 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:32,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,544 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2025-02-17 22:45:32,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-17 22:45:32,547 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 [2025-02-17 22:45:32,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:32,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:32,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:32,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:32,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:32,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:32,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:32,559 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:32,561 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:32,561 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:32,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,563 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2025-02-17 22:45:32,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-17 22:45:32,564 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:32,565 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:32,565 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:32,565 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, z) = -1*x2 + 1*z Supporting invariants [] [2025-02-17 22:45:32,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:32,570 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:32,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:32,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:32,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:32,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:32,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:32,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:32,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:32,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:32,604 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:32,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:32,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:32,631 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:45:32,632 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 227 states and 554 transitions. cyclomatic complexity: 363 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2025-02-17 22:45:32,677 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 227 states and 554 transitions. cyclomatic complexity: 363. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 417 states and 1050 transitions. Complement of second has 6 states. [2025-02-17 22:45:32,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:32,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2025-02-17 22:45:32,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 65 transitions. [2025-02-17 22:45:32,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 65 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:45:32,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:32,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 65 transitions. Stem has 8 letters. Loop has 3 letters. [2025-02-17 22:45:32,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:32,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 65 transitions. Stem has 5 letters. Loop has 6 letters. [2025-02-17 22:45:32,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:32,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 417 states and 1050 transitions. [2025-02-17 22:45:32,683 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 33 [2025-02-17 22:45:32,685 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 417 states to 305 states and 768 transitions. [2025-02-17 22:45:32,685 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 114 [2025-02-17 22:45:32,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2025-02-17 22:45:32,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 305 states and 768 transitions. [2025-02-17 22:45:32,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:32,687 INFO L218 hiAutomatonCegarLoop]: Abstraction has 305 states and 768 transitions. [2025-02-17 22:45:32,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states and 768 transitions. [2025-02-17 22:45:32,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 270. [2025-02-17 22:45:32,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 270 states have (on average 2.5703703703703704) internal successors, (694), 269 states have internal predecessors, (694), 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) [2025-02-17 22:45:32,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 694 transitions. [2025-02-17 22:45:32,697 INFO L240 hiAutomatonCegarLoop]: Abstraction has 270 states and 694 transitions. [2025-02-17 22:45:32,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:32,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-17 22:45:32,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-17 22:45:32,704 INFO L87 Difference]: Start difference. First operand 270 states and 694 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:32,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:32,726 INFO L93 Difference]: Finished difference Result 136 states and 322 transitions. [2025-02-17 22:45:32,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 136 states and 322 transitions. [2025-02-17 22:45:32,727 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2025-02-17 22:45:32,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 136 states to 126 states and 295 transitions. [2025-02-17 22:45:32,728 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 61 [2025-02-17 22:45:32,728 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 61 [2025-02-17 22:45:32,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 295 transitions. [2025-02-17 22:45:32,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:32,728 INFO L218 hiAutomatonCegarLoop]: Abstraction has 126 states and 295 transitions. [2025-02-17 22:45:32,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 295 transitions. [2025-02-17 22:45:32,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2025-02-17 22:45:32,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 126 states have (on average 2.3412698412698414) internal successors, (295), 125 states have internal predecessors, (295), 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) [2025-02-17 22:45:32,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 295 transitions. [2025-02-17 22:45:32,731 INFO L240 hiAutomatonCegarLoop]: Abstraction has 126 states and 295 transitions. [2025-02-17 22:45:32,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-17 22:45:32,735 INFO L432 stractBuchiCegarLoop]: Abstraction has 126 states and 295 transitions. [2025-02-17 22:45:32,735 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:45:32,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 295 transitions. [2025-02-17 22:45:32,736 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2025-02-17 22:45:32,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:32,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:32,736 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-17 22:45:32,736 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:32,737 INFO L752 eck$LassoCheckResult]: Stem: "[66] $Ultimate##0-->L13: Formula: (= v_f_7 0) InVars {} OutVars{f=v_f_7} AuxVars[] AssignedVars[f]" "[94] L13-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[97] L13-1-->L39: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[81] L39-->L44: Formula: (<= v_z_7 v_x3_4) InVars {x3=v_x3_4, z=v_z_7} OutVars{x3=v_x3_4, z=v_z_7} AuxVars[] AssignedVars[]" "[83] L44-->L45: Formula: (= v_f_4 (+ v_f_5 1)) InVars {f=v_f_5} OutVars{f=v_f_4} AuxVars[] AssignedVars[f]" "[70] L22-->L27: Formula: (<= v_z_3 v_x1_4) InVars {x1=v_x1_4, z=v_z_3} OutVars{x1=v_x1_4, z=v_z_3} AuxVars[] AssignedVars[]" "[72] L27-->L28: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" "[85] L45-->L46-1: Formula: (<= 2 v_f_6) InVars {f=v_f_6} OutVars{f=v_f_6} AuxVars[] AssignedVars[]" [2025-02-17 22:45:32,737 INFO L754 eck$LassoCheckResult]: Loop: "[88] L46-1-->L48: Formula: (< v_x4_2 v_z_8) InVars {x4=v_x4_2, z=v_z_8} OutVars{x4=v_x4_2, z=v_z_8} AuxVars[] AssignedVars[]" "[90] L48-->L49: Formula: (= v_x4_3 (+ v_x4_4 1)) InVars {x4=v_x4_4} OutVars{x4=v_x4_3} AuxVars[] AssignedVars[x4]" "[91] L49-->L46-1: Formula: (= (+ v_c_5 1) v_c_6) InVars {c=v_c_6} OutVars{c=v_c_5} AuxVars[] AssignedVars[c]" [2025-02-17 22:45:32,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1929253133, now seen corresponding path program 1 times [2025-02-17 22:45:32,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:32,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892036098] [2025-02-17 22:45:32,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:32,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:32,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:45:32,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:45:32,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,744 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:32,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:45:32,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:45:32,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:32,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,748 INFO L85 PathProgramCache]: Analyzing trace with hash 117240, now seen corresponding path program 1 times [2025-02-17 22:45:32,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:32,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496105114] [2025-02-17 22:45:32,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:32,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:32,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:32,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:32,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,750 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:32,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:32,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:32,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,752 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:32,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,753 INFO L85 PathProgramCache]: Analyzing trace with hash -872182420, now seen corresponding path program 1 times [2025-02-17 22:45:32,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:32,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491527084] [2025-02-17 22:45:32,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:32,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:32,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-17 22:45:32,758 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-17 22:45:32,758 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,758 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:32,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-17 22:45:32,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-17 22:45:32,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,765 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:32,784 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:32,784 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:32,784 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:32,785 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:32,785 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:32,785 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,785 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:32,785 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:32,785 INFO L132 ssoRankerPreferences]: Filename of dumped script: ie3.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:45:32,785 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:32,785 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:32,785 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,791 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,812 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:32,812 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:32,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,815 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2025-02-17 22:45:32,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-17 22:45:32,827 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:32,827 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:32,828 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 [2025-02-17 22:45:32,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-02-17 22:45:32,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-02-17 22:45:32,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,843 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2025-02-17 22:45:32,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-02-17 22:45:32,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:32,845 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:32,866 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:32,866 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=0}, {c=7}, {c=-8}] Lambdas: [0, 1, 1] Nus: [0, 0] [2025-02-17 22:45:32,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-02-17 22:45:32,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,873 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2025-02-17 22:45:32,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-02-17 22:45:32,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:32,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:32,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-02-17 22:45:32,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,891 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2025-02-17 22:45:32,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-02-17 22:45:32,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:32,894 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:32,971 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:32,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-02-17 22:45:32,981 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:32,981 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:32,981 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:32,981 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:32,981 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:32,981 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,981 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:32,981 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:32,981 INFO L132 ssoRankerPreferences]: Filename of dumped script: ie3.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:45:32,981 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:32,981 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:32,982 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,985 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,012 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:33,012 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:33,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,031 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2025-02-17 22:45:33,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-02-17 22:45:33,032 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 [2025-02-17 22:45:33,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:33,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:33,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:33,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:33,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:33,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:33,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:33,053 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:33,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-02-17 22:45:33,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,060 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2025-02-17 22:45:33,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-02-17 22:45:33,062 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 [2025-02-17 22:45:33,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:33,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:33,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:33,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:33,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:33,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:33,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:33,073 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:33,075 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:33,075 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:33,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,077 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2025-02-17 22:45:33,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-02-17 22:45:33,079 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:33,079 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:33,079 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:33,079 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x4) = 1*z - 1*x4 Supporting invariants [] [2025-02-17 22:45:33,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-02-17 22:45:33,085 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:33,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:33,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:45:33,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:45:33,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:33,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:33,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:33,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:33,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:33,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:33,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:33,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:33,120 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:33,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:33,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:33,140 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:45:33,141 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 126 states and 295 transitions. cyclomatic complexity: 188 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2025-02-17 22:45:33,169 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 126 states and 295 transitions. cyclomatic complexity: 188. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 221 states and 531 transitions. Complement of second has 6 states. [2025-02-17 22:45:33,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:33,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2025-02-17 22:45:33,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2025-02-17 22:45:33,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 8 letters. Loop has 3 letters. [2025-02-17 22:45:33,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:33,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 11 letters. Loop has 3 letters. [2025-02-17 22:45:33,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:33,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 8 letters. Loop has 6 letters. [2025-02-17 22:45:33,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:33,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 221 states and 531 transitions. [2025-02-17 22:45:33,175 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:33,175 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 221 states to 0 states and 0 transitions. [2025-02-17 22:45:33,175 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:45:33,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:45:33,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:45:33,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:33,176 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:33,176 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:33,176 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:33,176 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:45:33,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:45:33,176 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:33,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:45:33,182 INFO L201 PluginConnector]: Adding new model ie3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:45:33 BoogieIcfgContainer [2025-02-17 22:45:33,182 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:45:33,183 INFO L158 Benchmark]: Toolchain (without parser) took 2599.83ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 86.0MB in the beginning and 71.3MB in the end (delta: 14.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:33,183 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.92ms. Allocated memory is still 159.4MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:33,183 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.80ms. Allocated memory is still 159.4MB. Free memory was 86.0MB in the beginning and 84.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:33,183 INFO L158 Benchmark]: Boogie Preprocessor took 12.99ms. Allocated memory is still 159.4MB. Free memory was 84.7MB in the beginning and 84.0MB in the end (delta: 627.7kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:33,183 INFO L158 Benchmark]: RCFGBuilder took 184.80ms. Allocated memory is still 159.4MB. Free memory was 84.0MB in the beginning and 74.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-02-17 22:45:33,183 INFO L158 Benchmark]: BuchiAutomizer took 2379.84ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 74.9MB in the beginning and 71.3MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:33,184 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 0.92ms. Allocated memory is still 159.4MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.80ms. Allocated memory is still 159.4MB. Free memory was 86.0MB in the beginning and 84.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 12.99ms. Allocated memory is still 159.4MB. Free memory was 84.7MB in the beginning and 84.0MB in the end (delta: 627.7kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 184.80ms. Allocated memory is still 159.4MB. Free memory was 84.0MB in the beginning and 74.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2379.84ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 74.9MB in the beginning and 71.3MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + z and consists of 4 locations. One deterministic module has affine ranking function -1 * x3 + z and consists of 4 locations. One deterministic module has affine ranking function z + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function -1 * x4 + z and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 95 StatesRemovedByMinimization, 3 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 [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 194 mSDsluCounter, 257 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 134 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 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: 24ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:45:33,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-02-17 22:45:33,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...