/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-a4216cd-m [2025-04-26 16:25:42,398 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:25:42,451 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:25:42,457 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:25:42,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:25:42,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:25:42,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:25:42,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:25:42,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:25:42,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:25:42,482 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:25:42,482 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:25:42,482 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:25:42,482 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:25:42,482 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:25:42,482 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:25:42,482 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:25:42,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:25:42,483 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:25:42,483 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:25:42,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:25:42,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:25:42,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:25:42,483 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:25:42,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:25:42,484 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:25:42,484 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:25:42,484 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:25:42,484 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:25:42,484 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:25:42,484 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:25:42,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:25:42,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:25:42,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:25:42,484 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:25:42,484 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:25:42,484 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:25:42,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:25:42,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:25:42,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:25:42,712 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:25:42,712 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:25:42,713 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/interleaved4-buggy.c.bpl [2025-04-26 16:25:42,713 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/interleaved4-buggy.c.bpl' [2025-04-26 16:25:42,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:25:42,731 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:25:42,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:25:42,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:25:42,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:25:42,738 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 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,753 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 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,757 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:25:42,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:25:42,759 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:25:42,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:25:42,759 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:25:42,763 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,764 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,764 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,765 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,766 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,769 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,769 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,777 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:25:42,778 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:25:42,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:25:42,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:25:42,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:42,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:42,800 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) [2025-04-26 16:25:42,803 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 [2025-04-26 16:25:42,825 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:25:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:25:42,825 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:25:42,825 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:25:42,826 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:25:42,826 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:25:42,826 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:25:42,826 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:25:42,826 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:25:42,826 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:25:42,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:25:42,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:25:42,826 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-04-26 16:25:42,826 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 16:25:42,826 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 16:25:42,827 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:25:42,867 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:25:42,868 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:25:42,971 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:25:42,971 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:25:42,993 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:25:42,994 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:25:42,996 INFO L201 PluginConnector]: Adding new model interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:25:42 BoogieIcfgContainer [2025-04-26 16:25:42,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:25:42,997 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:25:42,997 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:25:43,002 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:25:43,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:25:43,003 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/2) ... [2025-04-26 16:25:43,004 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58425883 and model type interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:25:43, skipping insertion in model container [2025-04-26 16:25:43,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:25:43,005 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:25:42" (2/2) ... [2025-04-26 16:25:43,007 INFO L376 chiAutomizerObserver]: Analyzing ICFG interleaved4-buggy.c.bpl [2025-04-26 16:25:43,069 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-04-26 16:25:43,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 41 transitions, 110 flow [2025-04-26 16:25:43,112 INFO L116 PetriNetUnfolderBase]: 4/33 cut-off events. [2025-04-26 16:25:43,114 INFO L117 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-04-26 16:25:43,117 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. [2025-04-26 16:25:43,117 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 41 transitions, 110 flow [2025-04-26 16:25:43,120 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 33 transitions, 90 flow [2025-04-26 16:25:43,120 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 42 places, 33 transitions, 90 flow [2025-04-26 16:25:43,128 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:25:43,129 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:25:43,129 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:25:43,129 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:25:43,129 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:25:43,129 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:25:43,129 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:25:43,129 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:25:43,131 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:25:43,356 INFO L131 ngComponentsAnalysis]: Automaton has 115 accepting balls. 1509 [2025-04-26 16:25:43,356 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:25:43,356 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:25:43,360 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:25:43,360 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 16:25:43,362 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:25:43,363 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 1556 states, but on-demand construction may add more states [2025-04-26 16:25:43,399 INFO L131 ngComponentsAnalysis]: Automaton has 115 accepting balls. 1509 [2025-04-26 16:25:43,399 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:25:43,399 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:25:43,399 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:25:43,399 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 16:25:43,404 INFO L752 eck$LassoCheckResult]: Stem: "[81] $Ultimate##0-->L16: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[120] L16-->L33-1: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0]" [2025-04-26 16:25:43,404 INFO L754 eck$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]" [2025-04-26 16:25:43,407 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:43,407 INFO L85 PathProgramCache]: Analyzing trace with hash 3592, now seen corresponding path program 1 times [2025-04-26 16:25:43,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:43,414 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079723675] [2025-04-26 16:25:43,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:43,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:43,466 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:43,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:43,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:43,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:43,474 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:43,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:43,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:43,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:43,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:43,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:43,492 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:43,492 INFO L85 PathProgramCache]: Analyzing trace with hash 3603748, now seen corresponding path program 1 times [2025-04-26 16:25:43,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:43,492 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779246928] [2025-04-26 16:25:43,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:43,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:43,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:43,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:43,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:43,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:43,500 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:43,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:43,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:43,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:43,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:43,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:43,508 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:43,509 INFO L85 PathProgramCache]: Analyzing trace with hash -974999637, now seen corresponding path program 1 times [2025-04-26 16:25:43,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:43,509 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869356356] [2025-04-26 16:25:43,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:43,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:43,516 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:25:43,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:25:43,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:43,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:43,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:25:43,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:25:43,596 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869356356] [2025-04-26 16:25:43,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869356356] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:25:43,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:25:43,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-26 16:25:43,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453783605] [2025-04-26 16:25:43,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:25:43,674 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:25:43,674 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:25:43,674 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:25:43,674 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:25:43,675 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:25:43,675 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:43,675 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:25:43,675 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:25:43,675 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:25:43,675 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:25:43,675 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:25:43,721 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:43,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:43,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:43,792 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:25:43,793 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:25:43,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:43,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:43,796 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) [2025-04-26 16:25:43,798 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 [2025-04-26 16:25:43,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:25:43,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:43,815 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:25:43,815 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f2=1} Honda state: {f2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:25:43,822 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 [2025-04-26 16:25:43,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:43,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:43,824 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:43,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:25:43,827 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:25:43,827 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:43,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-04-26 16:25:43,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:43,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:43,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:43,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:25:43,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:25:43,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:43,923 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:25:43,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-04-26 16:25:43,929 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:25:43,929 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:25:43,929 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:25:43,929 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:25:43,929 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:25:43,929 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:43,929 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:25:43,929 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:25:43,929 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:25:43,929 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:25:43,929 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:25:43,931 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:43,934 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:43,943 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:44,007 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:25:44,020 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:25:44,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:44,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:44,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:44,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:25:44,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:25:44,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:25:44,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:25:44,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:25:44,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:25:44,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:25:44,053 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:25:44,053 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:25:44,056 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:25:44,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-04-26 16:25:44,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:44,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:44,065 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:44,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 16:25:44,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:25:44,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:25:44,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:25:44,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:25:44,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:25:44,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:25:44,079 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:25:44,079 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:25:44,082 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:25:44,084 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:25:44,085 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:25:44,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:44,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:44,088 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:44,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 16:25:44,090 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:25:44,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:25:44,094 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:25:44,094 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:25:44,094 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, z) = -1*x1 + 1*z Supporting invariants [] [2025-04-26 16:25:44,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 16:25:44,103 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:25:44,119 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:44,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:44,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:44,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:44,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:44,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:25:44,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:25:44,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:44,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:44,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:44,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:44,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:25:44,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:25:44,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:25:44,231 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 [2025-04-26 16:25:44,234 INFO L70 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, (in total 6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:44,412 INFO L74 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, (in total 6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 3781 states and 15573 transitions. Complement of second has 6 states. [2025-04-26 16:25:44,414 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:25:44,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (in total 6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:44,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2025-04-26 16:25:44,421 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:25:44,422 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:44,422 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 6 letters. Loop has 4 letters. [2025-04-26 16:25:44,422 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:44,422 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 2 letters. Loop has 8 letters. [2025-04-26 16:25:44,422 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:44,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3781 states and 15573 transitions. [2025-04-26 16:25:44,476 INFO L131 ngComponentsAnalysis]: Automaton has 175 accepting balls. 1449 [2025-04-26 16:25:44,546 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3781 states to 2998 states and 12492 transitions. [2025-04-26 16:25:44,547 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1492 [2025-04-26 16:25:44,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1924 [2025-04-26 16:25:44,557 INFO L74 IsDeterministic]: Start isDeterministic. Operand 2998 states and 12492 transitions. [2025-04-26 16:25:44,557 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:25:44,557 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2998 states and 12492 transitions. [2025-04-26 16:25:44,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states and 12492 transitions. [2025-04-26 16:25:44,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2567. [2025-04-26 16:25:44,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2567 states, 2567 states have (on average 4.201012855473315) internal successors, (in total 10784), 2566 states have internal predecessors, (10784), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:44,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 10784 transitions. [2025-04-26 16:25:44,697 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2567 states and 10784 transitions. [2025-04-26 16:25:44,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:25:44,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:25:44,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:25:44,699 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, (in total 6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:44,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:25:44,777 INFO L93 Difference]: Finished difference Result 2565 states and 10349 transitions. [2025-04-26 16:25:44,777 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2565 states and 10349 transitions. [2025-04-26 16:25:44,803 INFO L131 ngComponentsAnalysis]: Automaton has 175 accepting balls. 1449 [2025-04-26 16:25:44,823 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2565 states to 2136 states and 8010 transitions. [2025-04-26 16:25:44,823 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1492 [2025-04-26 16:25:44,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1707 [2025-04-26 16:25:44,829 INFO L74 IsDeterministic]: Start isDeterministic. Operand 2136 states and 8010 transitions. [2025-04-26 16:25:44,834 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:25:44,834 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2136 states and 8010 transitions. [2025-04-26 16:25:44,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states and 8010 transitions. [2025-04-26 16:25:44,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 1922. [2025-04-26 16:25:44,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1922 states, 1922 states have (on average 3.72528616024974) internal successors, (in total 7160), 1921 states have internal predecessors, (7160), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:44,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1922 states to 1922 states and 7160 transitions. [2025-04-26 16:25:44,910 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1922 states and 7160 transitions. [2025-04-26 16:25:44,911 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:25:44,911 INFO L438 stractBuchiCegarLoop]: Abstraction has 1922 states and 7160 transitions. [2025-04-26 16:25:44,912 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:25:44,912 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1922 states and 7160 transitions. [2025-04-26 16:25:44,922 INFO L131 ngComponentsAnalysis]: Automaton has 175 accepting balls. 1449 [2025-04-26 16:25:44,922 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:25:44,922 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:25:44,923 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:25:44,923 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 16:25:44,924 INFO L752 eck$LassoCheckResult]: Stem: "[81] $Ultimate##0-->L16: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[120] L16-->L33-1: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0]" "[111] L16-1-->L44: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" [2025-04-26 16:25:44,924 INFO L754 eck$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]" [2025-04-26 16:25:44,924 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:44,924 INFO L85 PathProgramCache]: Analyzing trace with hash 111463, now seen corresponding path program 1 times [2025-04-26 16:25:44,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:44,925 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317402167] [2025-04-26 16:25:44,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:44,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:44,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:25:44,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:25:44,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:44,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:44,930 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:44,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:25:44,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:25:44,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:44,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:44,938 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:44,938 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:44,939 INFO L85 PathProgramCache]: Analyzing trace with hash 3788452, now seen corresponding path program 1 times [2025-04-26 16:25:44,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:44,939 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797046646] [2025-04-26 16:25:44,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:44,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:44,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:44,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:44,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:44,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:44,948 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:44,950 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:44,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:44,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:44,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:44,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:44,955 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:44,955 INFO L85 PathProgramCache]: Analyzing trace with hash -137928950, now seen corresponding path program 1 times [2025-04-26 16:25:44,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:44,955 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887257677] [2025-04-26 16:25:44,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:44,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:44,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:25:44,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:25:44,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:44,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:44,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:25:44,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:25:44,990 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887257677] [2025-04-26 16:25:44,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887257677] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:25:44,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:25:44,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 16:25:44,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943584755] [2025-04-26 16:25:44,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:25:45,023 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:25:45,024 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:25:45,024 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:25:45,024 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:25:45,024 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:25:45,024 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:45,024 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:25:45,024 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:25:45,024 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:25:45,024 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:25:45,024 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:25:45,025 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:45,032 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:45,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:45,067 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:25:45,067 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:25:45,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:45,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:45,070 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:45,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 16:25:45,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:25:45,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:45,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-04-26 16:25:45,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:45,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:45,093 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:45,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 16:25:45,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:25:45,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:45,162 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:25:45,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-04-26 16:25:45,167 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:25:45,167 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:25:45,168 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:25:45,168 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:25:45,168 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:25:45,168 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:45,168 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:25:45,168 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:25:45,168 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:25:45,168 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:25:45,168 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:25:45,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:45,174 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:45,181 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:45,211 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:25:45,212 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:25:45,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:45,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:45,215 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:45,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 16:25:45,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:25:45,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:25:45,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:25:45,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:25:45,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:25:45,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:25:45,228 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:25:45,228 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:25:45,230 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:25:45,232 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:25:45,232 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:25:45,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:45,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:45,234 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:45,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 16:25:45,236 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:25:45,239 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:25:45,240 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 [2025-04-26 16:25:45,240 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:25:45,240 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:25:45,240 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, z) = -1*x2 + 1*z Supporting invariants [] [2025-04-26 16:25:45,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-04-26 16:25:45,246 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:25:45,258 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:45,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:25:45,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:25:45,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:45,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:45,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:25:45,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:25:45,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:45,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:45,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:45,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:45,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:25:45,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:25:45,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:25:45,302 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 [2025-04-26 16:25:45,302 INFO L70 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, (in total 7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:45,469 INFO L74 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, (in total 7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 4889 states and 19410 transitions. Complement of second has 6 states. [2025-04-26 16:25:45,470 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:25:45,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:45,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2025-04-26 16:25:45,474 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 16:25:45,475 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:45,475 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 7 letters. Loop has 4 letters. [2025-04-26 16:25:45,475 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:45,475 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 3 letters. Loop has 8 letters. [2025-04-26 16:25:45,475 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:45,475 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4889 states and 19410 transitions. [2025-04-26 16:25:45,563 INFO L131 ngComponentsAnalysis]: Automaton has 252 accepting balls. 1265 [2025-04-26 16:25:45,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4889 states to 3818 states and 15288 transitions. [2025-04-26 16:25:45,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1515 [2025-04-26 16:25:45,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1973 [2025-04-26 16:25:45,612 INFO L74 IsDeterministic]: Start isDeterministic. Operand 3818 states and 15288 transitions. [2025-04-26 16:25:45,613 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:25:45,613 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3818 states and 15288 transitions. [2025-04-26 16:25:45,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states and 15288 transitions. [2025-04-26 16:25:45,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3363. [2025-04-26 16:25:45,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3363 states, 3363 states have (on average 3.984834968777877) internal successors, (in total 13401), 3362 states have internal predecessors, (13401), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:45,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 13401 transitions. [2025-04-26 16:25:45,759 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3363 states and 13401 transitions. [2025-04-26 16:25:45,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:25:45,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:25:45,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:25:45,760 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, (in total 7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:45,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:25:45,794 INFO L93 Difference]: Finished difference Result 2208 states and 7437 transitions. [2025-04-26 16:25:45,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2208 states and 7437 transitions. [2025-04-26 16:25:45,810 INFO L131 ngComponentsAnalysis]: Automaton has 206 accepting balls. 1033 [2025-04-26 16:25:45,823 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2208 states to 1795 states and 6041 transitions. [2025-04-26 16:25:45,823 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1201 [2025-04-26 16:25:45,826 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1234 [2025-04-26 16:25:45,826 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1795 states and 6041 transitions. [2025-04-26 16:25:45,827 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:25:45,827 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1795 states and 6041 transitions. [2025-04-26 16:25:45,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states and 6041 transitions. [2025-04-26 16:25:45,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1694. [2025-04-26 16:25:45,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1694 states, 1694 states have (on average 3.407319952774498) internal successors, (in total 5772), 1693 states have internal predecessors, (5772), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:45,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 5772 transitions. [2025-04-26 16:25:45,859 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1694 states and 5772 transitions. [2025-04-26 16:25:45,860 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:25:45,860 INFO L438 stractBuchiCegarLoop]: Abstraction has 1694 states and 5772 transitions. [2025-04-26 16:25:45,860 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:25:45,860 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1694 states and 5772 transitions. [2025-04-26 16:25:45,869 INFO L131 ngComponentsAnalysis]: Automaton has 194 accepting balls. 973 [2025-04-26 16:25:45,869 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:25:45,869 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:25:45,870 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:25:45,870 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 16:25:45,870 INFO L752 eck$LassoCheckResult]: Stem: "[81] $Ultimate##0-->L16: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[120] L16-->L33-1: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0]" "[111] L16-1-->L44: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[114] L17-->L59: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" [2025-04-26 16:25:45,870 INFO L754 eck$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]" [2025-04-26 16:25:45,871 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:45,871 INFO L85 PathProgramCache]: Analyzing trace with hash 3455467, now seen corresponding path program 1 times [2025-04-26 16:25:45,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:45,871 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021435827] [2025-04-26 16:25:45,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:45,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:45,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:45,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:45,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:45,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:45,879 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:45,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:45,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:45,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:45,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:45,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:45,886 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:45,886 INFO L85 PathProgramCache]: Analyzing trace with hash 3973156, now seen corresponding path program 1 times [2025-04-26 16:25:45,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:45,886 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889263348] [2025-04-26 16:25:45,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:45,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:45,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:45,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:45,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:45,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:45,892 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:45,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:45,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:45,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:45,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:45,897 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:45,898 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:45,898 INFO L85 PathProgramCache]: Analyzing trace with hash 38688014, now seen corresponding path program 1 times [2025-04-26 16:25:45,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:45,898 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637876385] [2025-04-26 16:25:45,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:45,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:45,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:25:45,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:25:45,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:45,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:45,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:25:45,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:25:45,925 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637876385] [2025-04-26 16:25:45,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637876385] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:25:45,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:25:45,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 16:25:45,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873858041] [2025-04-26 16:25:45,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:25:45,947 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:25:45,947 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:25:45,947 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:25:45,947 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:25:45,947 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:25:45,947 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:45,948 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:25:45,948 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:25:45,948 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration3_Loop [2025-04-26 16:25:45,948 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:25:45,948 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:25:45,948 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:45,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:45,956 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:45,987 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:25:45,987 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:25:45,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:45,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:45,990 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:45,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-04-26 16:25:45,993 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:25:45,993 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:46,004 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:25:46,004 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f4=1} Honda state: {f4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:25:46,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-04-26 16:25:46,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:46,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:46,015 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:46,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-04-26 16:25:46,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:25:46,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:46,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-04-26 16:25:46,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:46,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:46,040 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:46,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-04-26 16:25:46,042 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:25:46,042 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:46,067 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:25:46,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-04-26 16:25:46,072 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:25:46,072 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:25:46,072 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:25:46,072 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:25:46,072 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:25:46,073 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:46,073 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:25:46,073 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:25:46,073 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration3_Loop [2025-04-26 16:25:46,073 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:25:46,073 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:25:46,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:46,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:46,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:46,115 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:25:46,115 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:25:46,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:46,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:46,118 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) [2025-04-26 16:25:46,119 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 [2025-04-26 16:25:46,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:25:46,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:25:46,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:25:46,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:25:46,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:25:46,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:25:46,133 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:25:46,133 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:25:46,135 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:25:46,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-04-26 16:25:46,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:46,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:46,143 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) [2025-04-26 16:25:46,145 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 [2025-04-26 16:25:46,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:25:46,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:25:46,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:25:46,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:25:46,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:25:46,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:25:46,157 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:25:46,157 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:25:46,160 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:25:46,162 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:25:46,163 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:25:46,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:46,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:46,166 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) [2025-04-26 16:25:46,167 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 [2025-04-26 16:25:46,167 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:25:46,170 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:25:46,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-04-26 16:25:46,172 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:25:46,172 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:25:46,172 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(f3) = 1*f3 Supporting invariants [] [2025-04-26 16:25:46,178 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 [2025-04-26 16:25:46,179 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:25:46,189 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:46,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:46,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:46,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:46,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:46,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:25:46,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:25:46,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:46,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:46,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:46,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:46,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:25:46,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:25:46,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:25:46,225 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:25:46,225 INFO L70 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, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:46,310 INFO L74 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, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 4687 states and 16917 transitions. Complement of second has 5 states. [2025-04-26 16:25:46,310 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:25:46,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:46,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2025-04-26 16:25:46,311 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 61 transitions. Stem has 4 letters. Loop has 4 letters. [2025-04-26 16:25:46,311 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:46,311 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 61 transitions. Stem has 8 letters. Loop has 4 letters. [2025-04-26 16:25:46,311 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:46,311 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 61 transitions. Stem has 4 letters. Loop has 8 letters. [2025-04-26 16:25:46,312 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:46,312 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4687 states and 16917 transitions. [2025-04-26 16:25:46,352 INFO L131 ngComponentsAnalysis]: Automaton has 223 accepting balls. 717 [2025-04-26 16:25:46,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4687 states to 3318 states and 11931 transitions. [2025-04-26 16:25:46,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1160 [2025-04-26 16:25:46,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1622 [2025-04-26 16:25:46,383 INFO L74 IsDeterministic]: Start isDeterministic. Operand 3318 states and 11931 transitions. [2025-04-26 16:25:46,383 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:25:46,383 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3318 states and 11931 transitions. [2025-04-26 16:25:46,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states and 11931 transitions. [2025-04-26 16:25:46,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 2848. [2025-04-26 16:25:46,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2848 states have (on average 3.646067415730337) internal successors, (in total 10384), 2847 states have internal predecessors, (10384), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:46,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 10384 transitions. [2025-04-26 16:25:46,495 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2848 states and 10384 transitions. [2025-04-26 16:25:46,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:25:46,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:25:46,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:25:46,496 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, (in total 8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:46,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:25:46,521 INFO L93 Difference]: Finished difference Result 1825 states and 5673 transitions. [2025-04-26 16:25:46,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1825 states and 5673 transitions. [2025-04-26 16:25:46,530 INFO L131 ngComponentsAnalysis]: Automaton has 181 accepting balls. 543 [2025-04-26 16:25:46,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1825 states to 1154 states and 3585 transitions. [2025-04-26 16:25:46,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 804 [2025-04-26 16:25:46,539 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 820 [2025-04-26 16:25:46,539 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1154 states and 3585 transitions. [2025-04-26 16:25:46,540 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:25:46,540 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1154 states and 3585 transitions. [2025-04-26 16:25:46,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states and 3585 transitions. [2025-04-26 16:25:46,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 973. [2025-04-26 16:25:46,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 973 states have (on average 3.130524152106886) internal successors, (in total 3046), 972 states have internal predecessors, (3046), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:46,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 3046 transitions. [2025-04-26 16:25:46,556 INFO L240 hiAutomatonCegarLoop]: Abstraction has 973 states and 3046 transitions. [2025-04-26 16:25:46,557 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:25:46,557 INFO L438 stractBuchiCegarLoop]: Abstraction has 973 states and 3046 transitions. [2025-04-26 16:25:46,557 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:25:46,557 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 973 states and 3046 transitions. [2025-04-26 16:25:46,561 INFO L131 ngComponentsAnalysis]: Automaton has 149 accepting balls. 447 [2025-04-26 16:25:46,561 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:25:46,561 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:25:46,562 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:25:46,562 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:25:46,562 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]" [2025-04-26 16:25:46,562 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]" [2025-04-26 16:25:46,563 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:46,563 INFO L85 PathProgramCache]: Analyzing trace with hash 107119594, now seen corresponding path program 1 times [2025-04-26 16:25:46,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:46,563 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122346702] [2025-04-26 16:25:46,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:46,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:46,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:25:46,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:25:46,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:46,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:46,570 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:46,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:25:46,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:25:46,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:46,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:46,576 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:46,577 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:46,577 INFO L85 PathProgramCache]: Analyzing trace with hash 134121, now seen corresponding path program 1 times [2025-04-26 16:25:46,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:46,577 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621844513] [2025-04-26 16:25:46,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:46,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:46,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:25:46,583 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:25:46,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:46,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:46,584 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:46,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:25:46,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:25:46,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:46,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:46,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:46,588 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:46,588 INFO L85 PathProgramCache]: Analyzing trace with hash 39228256, now seen corresponding path program 1 times [2025-04-26 16:25:46,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:46,588 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727314755] [2025-04-26 16:25:46,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:46,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:25:46,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:25:46,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:46,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:46,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:25:46,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:25:46,617 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727314755] [2025-04-26 16:25:46,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727314755] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:25:46,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:25:46,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 16:25:46,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115852489] [2025-04-26 16:25:46,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:25:46,638 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:25:46,638 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:25:46,638 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:25:46,638 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:25:46,638 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:25:46,638 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:46,638 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:25:46,638 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:25:46,638 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration4_Loop [2025-04-26 16:25:46,638 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:25:46,638 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:25:46,639 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:46,644 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:46,678 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:25:46,678 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:25:46,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:46,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:46,685 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) [2025-04-26 16:25:46,687 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 [2025-04-26 16:25:46,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:25:46,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:46,709 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 [2025-04-26 16:25:46,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:46,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:46,711 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) [2025-04-26 16:25:46,713 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 [2025-04-26 16:25:46,714 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:25:46,714 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:46,783 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:25:46,789 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 [2025-04-26 16:25:46,789 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:25:46,789 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:25:46,789 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:25:46,789 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:25:46,789 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:25:46,789 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:46,789 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:25:46,789 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:25:46,789 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration4_Loop [2025-04-26 16:25:46,789 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:25:46,789 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:25:46,791 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:46,797 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:46,822 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:25:46,822 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:25:46,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:46,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:46,825 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) [2025-04-26 16:25:46,826 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 [2025-04-26 16:25:46,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:25:46,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:25:46,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:25:46,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:25:46,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:25:46,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:25:46,839 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:25:46,839 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:25:46,841 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:25:46,843 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:25:46,844 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:25:46,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:46,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:46,845 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) [2025-04-26 16:25:46,847 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 [2025-04-26 16:25:46,848 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:25:46,851 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:25:46,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-04-26 16:25:46,851 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:25:46,851 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:25:46,851 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x4) = 1*z - 1*x4 Supporting invariants [] [2025-04-26 16:25:46,856 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 [2025-04-26 16:25:46,857 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:25:46,870 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:46,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:25:46,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:25:46,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:46,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:46,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:25:46,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:25:46,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:25:46,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:25:46,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:46,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:46,891 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:25:46,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:25:46,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:25:46,915 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:25:46,915 INFO L70 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, (in total 8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:46,993 INFO L74 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, (in total 8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 2493 states and 8719 transitions. Complement of second has 6 states. [2025-04-26 16:25:46,994 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:25:46,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:46,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2025-04-26 16:25:46,994 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 5 letters. Loop has 3 letters. [2025-04-26 16:25:46,994 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:46,995 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 8 letters. Loop has 3 letters. [2025-04-26 16:25:46,995 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:46,995 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 5 letters. Loop has 6 letters. [2025-04-26 16:25:46,995 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:46,995 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2493 states and 8719 transitions. [2025-04-26 16:25:47,040 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:25:47,041 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2493 states to 0 states and 0 transitions. [2025-04-26 16:25:47,041 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:25:47,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:25:47,041 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:25:47,041 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:25:47,041 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:25:47,041 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:25:47,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:25:47,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:25:47,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:25:47,043 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, (in total 8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:47,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:25:47,043 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-04-26 16:25:47,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-04-26 16:25:47,043 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:25:47,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-04-26 16:25:47,043 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:25:47,043 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:25:47,043 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:25:47,043 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:25:47,043 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:25:47,043 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:25:47,043 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-26 16:25:47,045 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:25:47,045 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 16:25:47,045 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:25:47,045 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:25:47,045 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:25:47,052 INFO L201 PluginConnector]: Adding new model interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:25:47 BoogieIcfgContainer [2025-04-26 16:25:47,052 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:25:47,053 INFO L158 Benchmark]: Toolchain (without parser) took 4321.41ms. Allocated memory was 159.4MB in the beginning and 281.0MB in the end (delta: 121.6MB). Free memory was 85.5MB in the beginning and 110.3MB in the end (delta: -24.8MB). Peak memory consumption was 101.1MB. Max. memory is 8.0GB. [2025-04-26 16:25:47,053 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.20ms. Allocated memory is still 159.4MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:25:47,053 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.53ms. Allocated memory is still 159.4MB. Free memory was 85.4MB in the beginning and 82.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:25:47,053 INFO L158 Benchmark]: Boogie Preprocessor took 18.65ms. Allocated memory is still 159.4MB. Free memory was 82.7MB in the beginning and 81.6MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:25:47,053 INFO L158 Benchmark]: RCFGBuilder took 218.17ms. Allocated memory is still 159.4MB. Free memory was 81.6MB in the beginning and 71.6MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:25:47,054 INFO L158 Benchmark]: BuchiAutomizer took 4055.12ms. Allocated memory was 159.4MB in the beginning and 281.0MB in the end (delta: 121.6MB). Free memory was 71.5MB in the beginning and 110.3MB in the end (delta: -38.8MB). Peak memory consumption was 88.5MB. Max. memory is 8.0GB. [2025-04-26 16:25:47,055 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 0.20ms. Allocated memory is still 159.4MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.53ms. Allocated memory is still 159.4MB. Free memory was 85.4MB in the beginning and 82.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 18.65ms. Allocated memory is still 159.4MB. Free memory was 82.7MB in the beginning and 81.6MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 218.17ms. Allocated memory is still 159.4MB. Free memory was 81.6MB in the beginning and 71.6MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 4055.12ms. Allocated memory was 159.4MB in the beginning and 281.0MB in the end (delta: 121.6MB). Free memory was 71.5MB in the beginning and 110.3MB in the end (delta: -38.8MB). Peak memory consumption was 88.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.1s. 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, 0.2s 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: 34ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - 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. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:25:47,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...