/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/4_plus_thr/interleaved4-buggy.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:46:52,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:46:52,733 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:46:52,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:46:52,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:46:52,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:46:52,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:46:52,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:46:52,767 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:46:52,767 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:46:52,768 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:46:52,768 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:46:52,768 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:46:52,768 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:46:52,768 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:46:52,768 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:46:52,768 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:46:52,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:46:52,768 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:46:52,768 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:46:52,768 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:46:52,769 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:46:52,769 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:46:52,769 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:46:52,769 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:46:52,769 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:46:52,769 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:46:52,769 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:46:52,769 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:46:52,769 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:46:52,769 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:46:52,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:46:52,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:46:52,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:46:52,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:46:52,770 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:46:52,770 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:46:53,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:46:53,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:46:53,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:46:53,017 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:46:53,018 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:46:53,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/interleaved4-buggy.c.bpl [2025-02-17 22:46:53,020 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/interleaved4-buggy.c.bpl' [2025-02-17 22:46:53,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:46:53,039 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:46:53,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:46:53,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:46:53,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:46:53,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:53" (1/1) ... [2025-02-17 22:46:53,052 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:53" (1/1) ... [2025-02-17 22:46:53,057 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:46:53,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:46:53,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:46:53,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:46:53,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:46:53,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:53" (1/1) ... [2025-02-17 22:46:53,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:53" (1/1) ... [2025-02-17 22:46:53,067 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:53" (1/1) ... [2025-02-17 22:46:53,067 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:53" (1/1) ... [2025-02-17 22:46:53,069 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:53" (1/1) ... [2025-02-17 22:46:53,070 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:53" (1/1) ... [2025-02-17 22:46:53,074 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:53" (1/1) ... [2025-02-17 22:46:53,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:53" (1/1) ... [2025-02-17 22:46:53,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:53" (1/1) ... [2025-02-17 22:46:53,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:46:53,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:46:53,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:46:53,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:46:53,080 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:53" (1/1) ... [2025-02-17 22:46:53,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:53,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:53,108 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 22:46:53,111 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 22:46:53,136 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:46:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:46:53,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:46:53,137 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:46:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:46:53,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:46:53,137 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:46:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:46:53,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:46:53,137 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:46:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:46:53,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:46:53,137 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:46:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:46:53,138 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:46:53,138 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 22:46:53,175 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:46:53,176 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:46:53,276 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:46:53,276 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:46:53,294 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:46:53,294 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:46:53,295 INFO L201 PluginConnector]: Adding new model interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:46:53 BoogieIcfgContainer [2025-02-17 22:46:53,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:46:53,296 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:46:53,296 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:46:53,306 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:46:53,307 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:46:53,307 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:53" (1/2) ... [2025-02-17 22:46:53,308 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a1b8978 and model type interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:46:53, skipping insertion in model container [2025-02-17 22:46:53,308 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:46:53,308 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:46:53" (2/2) ... [2025-02-17 22:46:53,309 INFO L363 chiAutomizerObserver]: Analyzing ICFG interleaved4-buggy.c.bpl [2025-02-17 22:46:53,378 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-02-17 22:46:53,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 41 transitions, 110 flow [2025-02-17 22:46:53,443 INFO L124 PetriNetUnfolderBase]: 4/33 cut-off events. [2025-02-17 22:46:53,445 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-17 22:46:53,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 33 events. 4/33 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 84 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2025-02-17 22:46:53,452 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 41 transitions, 110 flow [2025-02-17 22:46:53,455 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 33 transitions, 90 flow [2025-02-17 22:46:53,468 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:46:53,468 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:46:53,468 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:46:53,468 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:46:53,468 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:46:53,468 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:46:53,468 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:46:53,468 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:46:53,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:46:53,703 INFO L131 ngComponentsAnalysis]: Automaton has 115 accepting balls. 1509 [2025-02-17 22:46:53,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:53,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:53,707 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:46:53,708 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:46:53,708 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:46:53,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 1556 states, but on-demand construction may add more states [2025-02-17 22:46:53,747 INFO L131 ngComponentsAnalysis]: Automaton has 115 accepting balls. 1509 [2025-02-17 22:46:53,748 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:53,748 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:53,748 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:46:53,748 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:46:53,754 INFO L752 eck$LassoCheckResult]: Stem: "[81] $Ultimate##0-->L16: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[120] L16-->L33-1: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0]" [2025-02-17 22:46:53,754 INFO L754 eck$LassoCheckResult]: Loop: "[87] L33-1-->L31: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[89] L31-->L32: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[90] L32-->L33: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[91] L33-->L33-1: Formula: (and (= v_f1_4 0) (< 0 v_f1_5)) InVars {f1=v_f1_5} OutVars{f1=v_f1_4} AuxVars[] AssignedVars[f1]" [2025-02-17 22:46:53,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:53,760 INFO L85 PathProgramCache]: Analyzing trace with hash 3592, now seen corresponding path program 1 times [2025-02-17 22:46:53,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:53,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889143633] [2025-02-17 22:46:53,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:53,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:53,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:53,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:53,829 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:53,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:53,829 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:53,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:53,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:53,838 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:53,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:53,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:53,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:53,852 INFO L85 PathProgramCache]: Analyzing trace with hash 3603748, now seen corresponding path program 1 times [2025-02-17 22:46:53,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:53,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10538167] [2025-02-17 22:46:53,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:53,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:53,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:53,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:53,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:53,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:53,865 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:53,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:53,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:53,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:53,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:53,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:53,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:53,870 INFO L85 PathProgramCache]: Analyzing trace with hash -974999637, now seen corresponding path program 1 times [2025-02-17 22:46:53,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:53,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633080532] [2025-02-17 22:46:53,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:53,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:53,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:46:53,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:46:53,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:53,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:53,963 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 22:46:53,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:46:53,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633080532] [2025-02-17 22:46:53,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633080532] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:46:53,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:46:53,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-17 22:46:53,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633498021] [2025-02-17 22:46:53,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:46:54,051 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:54,052 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:54,052 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:54,052 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:54,052 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:54,052 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:54,053 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:54,053 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:54,053 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:46:54,053 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:54,053 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:54,065 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:54,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:54,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:54,191 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:54,192 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:54,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:54,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:54,196 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 22:46:54,198 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 22:46:54,199 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:54,199 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:54,217 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:46:54,217 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f2=1} Honda state: {f2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:46:54,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:54,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:54,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:54,230 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 22:46:54,232 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 22:46:54,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:54,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:54,254 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 22:46:54,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:54,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:54,257 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 22:46:54,259 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 22:46:54,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:54,260 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:54,334 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:54,338 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 22:46:54,339 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:54,339 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:54,339 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:54,339 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:54,339 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:54,339 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:54,339 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:54,339 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:54,339 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:46:54,339 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:54,339 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:54,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:54,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:54,352 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:54,387 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:54,390 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:54,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:54,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:54,393 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 22:46:54,395 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 22:46:54,396 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 22:46:54,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:54,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:54,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:54,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:54,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:54,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:54,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:54,413 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:46:54,419 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 22:46:54,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:54,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:54,422 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 22:46:54,423 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 22:46:54,424 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 22:46:54,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:54,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:54,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:54,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:54,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:54,436 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:54,436 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:54,438 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:54,442 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:46:54,442 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:46:54,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:54,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:54,445 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 22:46:54,447 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 22:46:54,448 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:54,448 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:54,448 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:54,449 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, z) = -1*x1 + 1*z Supporting invariants [] [2025-02-17 22:46:54,454 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 22:46:54,468 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:54,472 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 22:46:54,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:54,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:54,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:54,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:54,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:54,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:54,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:54,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:54,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:54,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:54,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:54,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:54,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:54,629 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 22:46:54,648 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 22:46:54,651 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 1556 states, but on-demand construction may add more states 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 22:46:54,852 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 1556 states, but on-demand construction may add more states. 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 3781 states and 15573 transitions. Complement of second has 6 states. [2025-02-17 22:46:54,857 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 22:46:54,861 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 22:46:54,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2025-02-17 22:46:54,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:46:54,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:54,870 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 6 letters. Loop has 4 letters. [2025-02-17 22:46:54,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:54,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 2 letters. Loop has 8 letters. [2025-02-17 22:46:54,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:54,872 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3781 states and 15573 transitions. [2025-02-17 22:46:54,932 INFO L131 ngComponentsAnalysis]: Automaton has 175 accepting balls. 1449 [2025-02-17 22:46:54,987 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3781 states to 2998 states and 12492 transitions. [2025-02-17 22:46:54,988 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1492 [2025-02-17 22:46:54,999 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1924 [2025-02-17 22:46:55,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2998 states and 12492 transitions. [2025-02-17 22:46:55,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:55,000 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2998 states and 12492 transitions. [2025-02-17 22:46:55,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states and 12492 transitions. [2025-02-17 22:46:55,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2567. [2025-02-17 22:46:55,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2567 states, 2567 states have (on average 4.201012855473315) internal successors, (10784), 2566 states have internal predecessors, (10784), 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 22:46:55,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 10784 transitions. [2025-02-17 22:46:55,197 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2567 states and 10784 transitions. [2025-02-17 22:46:55,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:46:55,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:46:55,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:46:55,199 INFO L87 Difference]: Start difference. First operand 2567 states and 10784 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 22:46:55,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:46:55,252 INFO L93 Difference]: Finished difference Result 2565 states and 10349 transitions. [2025-02-17 22:46:55,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2565 states and 10349 transitions. [2025-02-17 22:46:55,279 INFO L131 ngComponentsAnalysis]: Automaton has 175 accepting balls. 1449 [2025-02-17 22:46:55,301 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2565 states to 2136 states and 8010 transitions. [2025-02-17 22:46:55,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1492 [2025-02-17 22:46:55,307 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1707 [2025-02-17 22:46:55,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2136 states and 8010 transitions. [2025-02-17 22:46:55,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:55,315 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2136 states and 8010 transitions. [2025-02-17 22:46:55,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states and 8010 transitions. [2025-02-17 22:46:55,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 1922. [2025-02-17 22:46:55,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1922 states, 1922 states have (on average 3.72528616024974) internal successors, (7160), 1921 states have internal predecessors, (7160), 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 22:46:55,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1922 states to 1922 states and 7160 transitions. [2025-02-17 22:46:55,404 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1922 states and 7160 transitions. [2025-02-17 22:46:55,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:46:55,405 INFO L432 stractBuchiCegarLoop]: Abstraction has 1922 states and 7160 transitions. [2025-02-17 22:46:55,405 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:46:55,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1922 states and 7160 transitions. [2025-02-17 22:46:55,416 INFO L131 ngComponentsAnalysis]: Automaton has 175 accepting balls. 1449 [2025-02-17 22:46:55,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:55,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:55,417 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:46:55,417 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:46:55,417 INFO L752 eck$LassoCheckResult]: Stem: "[81] $Ultimate##0-->L16: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[120] L16-->L33-1: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0]" "[111] L16-1-->L44: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" [2025-02-17 22:46:55,418 INFO L754 eck$LassoCheckResult]: Loop: "[93] L44-->L46: 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[]" "[95] L46-->L46-1: Formula: (and (< 0 v_f2_6) (= v_f2_5 0)) InVars {f2=v_f2_6} OutVars{f2=v_f2_5} AuxVars[] AssignedVars[f2]" "[96] L46-1-->L52: Formula: (= v_x2_3 (+ v_x2_4 1)) InVars {x2=v_x2_4} OutVars{x2=v_x2_3} AuxVars[] AssignedVars[x2]" "[97] L52-->L44: Formula: (= v_f3_1 1) InVars {} OutVars{f3=v_f3_1} AuxVars[] AssignedVars[f3]" [2025-02-17 22:46:55,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:55,418 INFO L85 PathProgramCache]: Analyzing trace with hash 111463, now seen corresponding path program 1 times [2025-02-17 22:46:55,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:55,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049646452] [2025-02-17 22:46:55,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:55,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:55,423 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:55,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:55,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:55,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:55,424 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:55,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:55,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:55,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:55,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:55,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:55,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:55,435 INFO L85 PathProgramCache]: Analyzing trace with hash 3788452, now seen corresponding path program 1 times [2025-02-17 22:46:55,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:55,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586137541] [2025-02-17 22:46:55,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:55,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:55,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:55,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:55,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:55,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:55,440 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:55,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:55,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:55,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:55,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:55,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:55,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:55,443 INFO L85 PathProgramCache]: Analyzing trace with hash -137928950, now seen corresponding path program 1 times [2025-02-17 22:46:55,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:55,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132577373] [2025-02-17 22:46:55,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:55,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:55,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:46:55,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:46:55,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:55,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:55,481 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 22:46:55,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:46:55,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132577373] [2025-02-17 22:46:55,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132577373] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:46:55,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:46:55,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:46:55,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943200656] [2025-02-17 22:46:55,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:46:55,512 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:55,512 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:55,512 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:55,512 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:55,512 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:55,512 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:55,512 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:55,512 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:55,512 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:46:55,512 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:55,512 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:55,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:55,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:55,524 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:55,561 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:55,561 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:55,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:55,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:55,566 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 22:46:55,567 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 22:46:55,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:55,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:55,586 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 22:46:55,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:55,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:55,589 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 22:46:55,590 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 22:46:55,591 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:55,591 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:55,658 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:55,662 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 22:46:55,662 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:55,662 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:55,662 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:55,662 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:55,662 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:55,662 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:55,662 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:55,662 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:55,662 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:46:55,662 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:55,662 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:55,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:55,670 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:55,677 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:55,711 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:55,711 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:55,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:55,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:55,714 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 22:46:55,715 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 22:46:55,717 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 22:46:55,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:55,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:55,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:55,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:55,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:55,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:55,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:55,731 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:55,734 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:46:55,734 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:46:55,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:55,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:55,736 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 22:46:55,738 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 22:46:55,741 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:55,742 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:55,742 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:55,742 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, z) = -1*x2 + 1*z Supporting invariants [] [2025-02-17 22:46:55,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-02-17 22:46:55,748 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:55,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:55,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:55,768 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:55,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:55,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:55,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:55,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:55,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:55,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:55,782 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:55,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:55,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:55,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:55,829 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 22:46:55,829 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 22:46:55,830 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1922 states and 7160 transitions. cyclomatic complexity: 5463 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 22:46:55,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:56,003 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1922 states and 7160 transitions. cyclomatic complexity: 5463. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 4889 states and 19410 transitions. Complement of second has 6 states. [2025-02-17 22:46:56,003 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 22:46:56,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 22:46:56,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2025-02-17 22:46:56,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 3 letters. Loop has 4 letters. [2025-02-17 22:46:56,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:56,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 7 letters. Loop has 4 letters. [2025-02-17 22:46:56,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:56,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 3 letters. Loop has 8 letters. [2025-02-17 22:46:56,006 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:56,006 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4889 states and 19410 transitions. [2025-02-17 22:46:56,085 INFO L131 ngComponentsAnalysis]: Automaton has 252 accepting balls. 1265 [2025-02-17 22:46:56,128 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4889 states to 3818 states and 15288 transitions. [2025-02-17 22:46:56,128 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1515 [2025-02-17 22:46:56,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1973 [2025-02-17 22:46:56,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3818 states and 15288 transitions. [2025-02-17 22:46:56,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:56,134 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3818 states and 15288 transitions. [2025-02-17 22:46:56,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states and 15288 transitions. [2025-02-17 22:46:56,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3363. [2025-02-17 22:46:56,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3363 states, 3363 states have (on average 3.984834968777877) internal successors, (13401), 3362 states have internal predecessors, (13401), 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 22:46:56,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 13401 transitions. [2025-02-17 22:46:56,231 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3363 states and 13401 transitions. [2025-02-17 22:46:56,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:46:56,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:46:56,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:46:56,232 INFO L87 Difference]: Start difference. First operand 3363 states and 13401 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 22:46:56,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:46:56,269 INFO L93 Difference]: Finished difference Result 2208 states and 7437 transitions. [2025-02-17 22:46:56,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2208 states and 7437 transitions. [2025-02-17 22:46:56,288 INFO L131 ngComponentsAnalysis]: Automaton has 206 accepting balls. 1033 [2025-02-17 22:46:56,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2208 states to 1795 states and 6041 transitions. [2025-02-17 22:46:56,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1201 [2025-02-17 22:46:56,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1234 [2025-02-17 22:46:56,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1795 states and 6041 transitions. [2025-02-17 22:46:56,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:56,306 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1795 states and 6041 transitions. [2025-02-17 22:46:56,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states and 6041 transitions. [2025-02-17 22:46:56,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1694. [2025-02-17 22:46:56,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1694 states, 1694 states have (on average 3.407319952774498) internal successors, (5772), 1693 states have internal predecessors, (5772), 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 22:46:56,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 5772 transitions. [2025-02-17 22:46:56,346 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1694 states and 5772 transitions. [2025-02-17 22:46:56,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:46:56,347 INFO L432 stractBuchiCegarLoop]: Abstraction has 1694 states and 5772 transitions. [2025-02-17 22:46:56,347 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:46:56,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1694 states and 5772 transitions. [2025-02-17 22:46:56,355 INFO L131 ngComponentsAnalysis]: Automaton has 194 accepting balls. 973 [2025-02-17 22:46:56,356 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:56,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:56,356 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:46:56,356 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:46:56,357 INFO L752 eck$LassoCheckResult]: Stem: "[81] $Ultimate##0-->L16: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[120] L16-->L33-1: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0]" "[111] L16-1-->L44: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[114] L17-->L59: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" [2025-02-17 22:46:56,357 INFO L754 eck$LassoCheckResult]: Loop: "[99] L59-->L61: Formula: (< v_x3_1 v_z_5) InVars {x3=v_x3_1, z=v_z_5} OutVars{x3=v_x3_1, z=v_z_5} AuxVars[] AssignedVars[]" "[101] L61-->L61-1: Formula: (and (< 0 v_f3_6) (= v_f3_5 0)) InVars {f3=v_f3_6} OutVars{f3=v_f3_5} AuxVars[] AssignedVars[f3]" "[102] L61-1-->L67: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" "[103] L67-->L59: Formula: (= v_f4_1 1) InVars {} OutVars{f4=v_f4_1} AuxVars[] AssignedVars[f4]" [2025-02-17 22:46:56,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:56,357 INFO L85 PathProgramCache]: Analyzing trace with hash 3455467, now seen corresponding path program 1 times [2025-02-17 22:46:56,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:56,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429488322] [2025-02-17 22:46:56,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:56,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:56,361 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:56,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:56,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:56,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:56,363 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:56,363 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:56,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:56,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:56,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:56,366 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:56,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:56,367 INFO L85 PathProgramCache]: Analyzing trace with hash 3973156, now seen corresponding path program 1 times [2025-02-17 22:46:56,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:56,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361137148] [2025-02-17 22:46:56,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:56,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:56,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:56,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:56,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:56,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:56,371 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:56,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:56,375 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:56,375 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:56,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:56,377 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:56,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:56,377 INFO L85 PathProgramCache]: Analyzing trace with hash 38688014, now seen corresponding path program 1 times [2025-02-17 22:46:56,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:56,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597020919] [2025-02-17 22:46:56,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:56,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:56,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:46:56,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:46:56,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:56,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:56,407 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 22:46:56,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:46:56,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597020919] [2025-02-17 22:46:56,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597020919] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:46:56,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:46:56,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:46:56,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112090449] [2025-02-17 22:46:56,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:46:56,431 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:56,431 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:56,431 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:56,431 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:56,431 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:56,431 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:56,431 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:56,431 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:56,431 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:46:56,431 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:56,431 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:56,432 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:56,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:56,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:56,472 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:56,472 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:56,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:56,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:56,475 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 22:46:56,492 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 22:46:56,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:56,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:56,505 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:46:56,505 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f4=1} Honda state: {f4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:46:56,510 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 22:46:56,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:56,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:56,513 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 22:46:56,514 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 22:46:56,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:56,516 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:56,532 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 22:46:56,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:56,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:56,535 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 22:46:56,535 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 22:46:56,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:56,538 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:56,561 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:56,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:56,565 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:56,565 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:56,565 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:56,565 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:56,566 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:56,566 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:56,566 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:56,566 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:56,566 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:46:56,566 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:56,566 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:56,566 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:56,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:56,573 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:56,602 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:56,602 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:56,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:56,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:56,604 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 22:46:56,607 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 22:46:56,607 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 22:46:56,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:56,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:56,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:56,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:56,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:56,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:56,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:56,620 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:46:56,625 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 22:46:56,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:56,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:56,628 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 22:46:56,629 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 22:46:56,631 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 22:46:56,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:56,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:56,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:56,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:56,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:56,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:56,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:56,644 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:56,647 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:46:56,647 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:46:56,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:56,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:56,649 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 22:46:56,651 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 22:46:56,652 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:56,652 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:56,652 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:56,653 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f3) = 1*f3 Supporting invariants [] [2025-02-17 22:46:56,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:56,659 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:56,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:56,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:56,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:56,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:56,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:56,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:56,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:56,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:56,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:56,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:56,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:56,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:56,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:56,721 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 22:46:56,722 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:46:56,722 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1694 states and 5772 transitions. cyclomatic complexity: 4374 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 22:46:56,790 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1694 states and 5772 transitions. cyclomatic complexity: 4374. 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 4687 states and 16917 transitions. Complement of second has 5 states. [2025-02-17 22:46:56,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-17 22:46:56,792 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 22:46:56,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2025-02-17 22:46:56,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 61 transitions. Stem has 4 letters. Loop has 4 letters. [2025-02-17 22:46:56,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:56,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 61 transitions. Stem has 8 letters. Loop has 4 letters. [2025-02-17 22:46:56,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:56,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 61 transitions. Stem has 4 letters. Loop has 8 letters. [2025-02-17 22:46:56,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:56,793 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4687 states and 16917 transitions. [2025-02-17 22:46:56,831 INFO L131 ngComponentsAnalysis]: Automaton has 223 accepting balls. 717 [2025-02-17 22:46:56,866 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4687 states to 3318 states and 11931 transitions. [2025-02-17 22:46:56,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1160 [2025-02-17 22:46:56,871 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1622 [2025-02-17 22:46:56,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3318 states and 11931 transitions. [2025-02-17 22:46:56,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:56,872 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3318 states and 11931 transitions. [2025-02-17 22:46:56,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states and 11931 transitions. [2025-02-17 22:46:56,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 2848. [2025-02-17 22:46:56,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2848 states have (on average 3.646067415730337) internal successors, (10384), 2847 states have internal predecessors, (10384), 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 22:46:56,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 10384 transitions. [2025-02-17 22:46:56,937 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2848 states and 10384 transitions. [2025-02-17 22:46:56,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:46:56,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:46:56,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:46:56,937 INFO L87 Difference]: Start difference. First operand 2848 states and 10384 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 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 22:46:56,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:46:56,960 INFO L93 Difference]: Finished difference Result 1825 states and 5673 transitions. [2025-02-17 22:46:56,960 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1825 states and 5673 transitions. [2025-02-17 22:46:56,970 INFO L131 ngComponentsAnalysis]: Automaton has 181 accepting balls. 543 [2025-02-17 22:46:56,975 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1825 states to 1154 states and 3585 transitions. [2025-02-17 22:46:56,975 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 804 [2025-02-17 22:46:56,977 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 820 [2025-02-17 22:46:56,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1154 states and 3585 transitions. [2025-02-17 22:46:56,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:56,978 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1154 states and 3585 transitions. [2025-02-17 22:46:56,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states and 3585 transitions. [2025-02-17 22:46:56,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 973. [2025-02-17 22:46:56,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 973 states have (on average 3.130524152106886) internal successors, (3046), 972 states have internal predecessors, (3046), 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 22:46:56,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 3046 transitions. [2025-02-17 22:46:56,995 INFO L240 hiAutomatonCegarLoop]: Abstraction has 973 states and 3046 transitions. [2025-02-17 22:46:56,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:46:56,997 INFO L432 stractBuchiCegarLoop]: Abstraction has 973 states and 3046 transitions. [2025-02-17 22:46:56,997 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:46:56,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 973 states and 3046 transitions. [2025-02-17 22:46:57,001 INFO L131 ngComponentsAnalysis]: Automaton has 149 accepting balls. 447 [2025-02-17 22:46:57,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:57,002 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:57,002 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:46:57,002 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:46:57,002 INFO L752 eck$LassoCheckResult]: Stem: "[81] $Ultimate##0-->L16: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[120] L16-->L33-1: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0]" "[111] L16-1-->L44: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[114] L17-->L59: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" "[117] L18-->L74: Formula: (and (= 4 v_thread4Thread1of1ForFork2_thidvar2_2) (= 4 v_thread4Thread1of1ForFork2_thidvar3_2) (= 4 v_thread4Thread1of1ForFork2_thidvar1_2) (= 4 v_thread4Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread4Thread1of1ForFork2_thidvar3=v_thread4Thread1of1ForFork2_thidvar3_2, thread4Thread1of1ForFork2_thidvar0=v_thread4Thread1of1ForFork2_thidvar0_2, thread4Thread1of1ForFork2_thidvar2=v_thread4Thread1of1ForFork2_thidvar2_2, thread4Thread1of1ForFork2_thidvar1=v_thread4Thread1of1ForFork2_thidvar1_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork2_thidvar3, thread4Thread1of1ForFork2_thidvar0, thread4Thread1of1ForFork2_thidvar2, thread4Thread1of1ForFork2_thidvar1]" [2025-02-17 22:46:57,002 INFO L754 eck$LassoCheckResult]: Loop: "[105] L74-->L76: Formula: (< v_x4_2 v_z_7) InVars {x4=v_x4_2, z=v_z_7} OutVars{x4=v_x4_2, z=v_z_7} AuxVars[] AssignedVars[]" "[107] L76-->L76-1: Formula: (and (< 0 v_f4_6) (= v_f4_5 0)) InVars {f4=v_f4_6} OutVars{f4=v_f4_5} AuxVars[] AssignedVars[f4]" "[108] L76-1-->L74: Formula: (= v_x4_3 (+ v_x4_4 1)) InVars {x4=v_x4_4} OutVars{x4=v_x4_3} AuxVars[] AssignedVars[x4]" [2025-02-17 22:46:57,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:57,003 INFO L85 PathProgramCache]: Analyzing trace with hash 107119594, now seen corresponding path program 1 times [2025-02-17 22:46:57,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:57,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286440105] [2025-02-17 22:46:57,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:57,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:57,008 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:46:57,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:46:57,011 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:57,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:57,011 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:57,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:46:57,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:46:57,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:57,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:57,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:57,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:57,045 INFO L85 PathProgramCache]: Analyzing trace with hash 134121, now seen corresponding path program 1 times [2025-02-17 22:46:57,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:57,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861660410] [2025-02-17 22:46:57,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:57,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:57,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:57,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:57,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:57,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:57,052 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:57,053 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:57,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:57,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:57,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:57,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:57,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:57,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:57,056 INFO L85 PathProgramCache]: Analyzing trace with hash 39228256, now seen corresponding path program 1 times [2025-02-17 22:46:57,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:57,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212633479] [2025-02-17 22:46:57,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:57,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:57,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:46:57,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:46:57,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:57,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:57,092 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 22:46:57,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:46:57,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212633479] [2025-02-17 22:46:57,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212633479] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:46:57,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:46:57,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:46:57,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491186292] [2025-02-17 22:46:57,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:46:57,114 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:57,115 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:57,115 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:57,115 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:57,115 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:57,115 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:57,115 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:57,115 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:57,115 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:46:57,115 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:57,115 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:57,115 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:57,123 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:57,159 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:57,159 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:57,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:57,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:57,166 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 22:46:57,167 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 22:46:57,168 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:57,168 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:57,184 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 22:46:57,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:57,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:57,186 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 22:46:57,188 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 22:46:57,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:57,189 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:57,256 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:57,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:57,260 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:57,260 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:57,260 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:57,260 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:57,261 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:57,261 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:57,261 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:57,261 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:57,261 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:46:57,261 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:57,261 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:57,261 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:57,268 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:57,290 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:57,290 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:57,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:57,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:57,292 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 22:46:57,294 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 22:46:57,295 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 22:46:57,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:57,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:57,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:57,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:57,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:57,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:57,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:57,307 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:57,309 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:46:57,309 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:46:57,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:57,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:57,311 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 22:46:57,312 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 22:46:57,313 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:57,313 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:57,313 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:57,313 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x4) = 1*z - 1*x4 Supporting invariants [] [2025-02-17 22:46:57,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:57,320 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:57,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:57,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:46:57,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:46:57,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:57,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:57,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:57,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:57,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:57,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:57,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:57,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:57,349 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:57,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:57,363 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 22:46:57,363 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:46:57,364 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 973 states and 3046 transitions. cyclomatic complexity: 2298 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 22:46:57,436 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 973 states and 3046 transitions. cyclomatic complexity: 2298. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 2493 states and 8719 transitions. Complement of second has 6 states. [2025-02-17 22:46:57,438 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 22:46:57,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 22:46:57,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2025-02-17 22:46:57,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:46:57,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:57,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 8 letters. Loop has 3 letters. [2025-02-17 22:46:57,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:57,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 5 letters. Loop has 6 letters. [2025-02-17 22:46:57,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:57,439 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2493 states and 8719 transitions. [2025-02-17 22:46:57,452 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:46:57,452 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2493 states to 0 states and 0 transitions. [2025-02-17 22:46:57,452 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:46:57,452 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:46:57,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:46:57,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:46:57,453 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:46:57,453 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:46:57,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:46:57,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:46:57,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:46:57,453 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 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 22:46:57,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:46:57,453 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-02-17 22:46:57,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-02-17 22:46:57,453 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:46:57,453 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-02-17 22:46:57,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:46:57,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:46:57,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:46:57,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:46:57,454 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:46:57,454 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:46:57,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-17 22:46:57,454 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:46:57,454 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:46:57,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:46:57,454 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:46:57,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:46:57,461 INFO L201 PluginConnector]: Adding new model interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:46:57 BoogieIcfgContainer [2025-02-17 22:46:57,461 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:46:57,462 INFO L158 Benchmark]: Toolchain (without parser) took 4423.92ms. Allocated memory was 159.4MB in the beginning and 285.2MB in the end (delta: 125.8MB). Free memory was 85.9MB in the beginning and 124.0MB in the end (delta: -38.2MB). Peak memory consumption was 87.4MB. Max. memory is 8.0GB. [2025-02-17 22:46:57,463 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.25ms. Allocated memory is still 159.4MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:46:57,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.05ms. Allocated memory is still 159.4MB. Free memory was 85.7MB in the beginning and 84.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:46:57,463 INFO L158 Benchmark]: Boogie Preprocessor took 17.57ms. Allocated memory is still 159.4MB. Free memory was 84.6MB in the beginning and 83.8MB in the end (delta: 782.0kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:46:57,464 INFO L158 Benchmark]: RCFGBuilder took 216.18ms. Allocated memory is still 159.4MB. Free memory was 83.8MB in the beginning and 74.0MB in the end (delta: 9.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-02-17 22:46:57,464 INFO L158 Benchmark]: BuchiAutomizer took 4165.24ms. Allocated memory was 159.4MB in the beginning and 285.2MB in the end (delta: 125.8MB). Free memory was 73.8MB in the beginning and 124.0MB in the end (delta: -50.3MB). Peak memory consumption was 74.8MB. Max. memory is 8.0GB. [2025-02-17 22:46:57,465 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.25ms. Allocated memory is still 159.4MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.05ms. Allocated memory is still 159.4MB. Free memory was 85.7MB in the beginning and 84.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 17.57ms. Allocated memory is still 159.4MB. Free memory was 84.6MB in the beginning and 83.8MB in the end (delta: 782.0kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 216.18ms. Allocated memory is still 159.4MB. Free memory was 83.8MB in the beginning and 74.0MB in the end (delta: 9.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 4165.24ms. Allocated memory was 159.4MB in the beginning and 285.2MB in the end (delta: 125.8MB). Free memory was 73.8MB in the beginning and 124.0MB in the end (delta: -50.3MB). Peak memory consumption was 74.8MB. 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 8 terminating modules (4 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 z + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function f3 and consists of 3 locations. One deterministic module has affine ranking function -1 * x4 + z and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.2s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 6. Automata minimization 0.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 1852 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.4s 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, 278 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 274 mSDsluCounter, 293 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 125 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 278 IncrementalHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 168 mSDtfsCounter, 278 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT4 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s 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 22:46:57,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:57,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...