/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 --buchiautomizer.automaton.type.for.concurrent.programs PARTIAL_ORDER_BA -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/4_plus_thr/interleaved4-buggy.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:50:27,061 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:50:27,120 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:50:27,124 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:50:27,124 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:50:27,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:50:27,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:50:27,147 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:50:27,148 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:50:27,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:50:27,148 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:50:27,148 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:50:27,148 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:50:27,148 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:50:27,148 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:50:27,148 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:50:27,148 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:50:27,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:50:27,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:50:27,149 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:50:27,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:50:27,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:50:27,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:50:27,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:50:27,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:50:27,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:50:27,149 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:50:27,149 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:50:27,149 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:50:27,149 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:50:27,149 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:50:27,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:50:27,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:50:27,149 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:50:27,149 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:50:27,150 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:50:27,150 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> PARTIAL_ORDER_BA [2025-02-17 22:50:27,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:50:27,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:50:27,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:50:27,357 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:50:27,360 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:50:27,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/interleaved4-buggy.c.bpl [2025-02-17 22:50:27,361 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/interleaved4-buggy.c.bpl' [2025-02-17 22:50:27,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:50:27,374 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:50:27,375 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:50:27,375 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:50:27,375 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:50:27,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:27" (1/1) ... [2025-02-17 22:50:27,386 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:27" (1/1) ... [2025-02-17 22:50:27,389 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:50:27,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:50:27,391 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:50:27,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:50:27,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:50:27,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:27" (1/1) ... [2025-02-17 22:50:27,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:27" (1/1) ... [2025-02-17 22:50:27,395 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:27" (1/1) ... [2025-02-17 22:50:27,395 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:27" (1/1) ... [2025-02-17 22:50:27,397 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:27" (1/1) ... [2025-02-17 22:50:27,397 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:27" (1/1) ... [2025-02-17 22:50:27,399 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:27" (1/1) ... [2025-02-17 22:50:27,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:27" (1/1) ... [2025-02-17 22:50:27,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:27" (1/1) ... [2025-02-17 22:50:27,400 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:50:27,401 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:50:27,401 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:50:27,401 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:50:27,401 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:27" (1/1) ... [2025-02-17 22:50:27,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:27,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:27,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:27,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:50:27,447 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:50:27,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:50:27,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:50:27,447 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:50:27,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:50:27,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:50:27,448 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:50:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:50:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:50:27,448 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:50:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:50:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:50:27,448 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:50:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:50:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:50:27,449 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:50:27,481 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:50:27,482 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:50:27,581 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:50:27,581 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:50:27,601 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:50:27,602 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:50:27,603 INFO L201 PluginConnector]: Adding new model interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:50:27 BoogieIcfgContainer [2025-02-17 22:50:27,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:50:27,604 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:50:27,604 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:50:27,608 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:50:27,608 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:50:27,608 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:27" (1/2) ... [2025-02-17 22:50:27,610 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@456d0620 and model type interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:50:27, skipping insertion in model container [2025-02-17 22:50:27,610 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:50:27,610 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:50:27" (2/2) ... [2025-02-17 22:50:27,611 INFO L363 chiAutomizerObserver]: Analyzing ICFG interleaved4-buggy.c.bpl [2025-02-17 22:50:27,686 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-02-17 22:50:27,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 41 transitions, 110 flow [2025-02-17 22:50:27,748 INFO L124 PetriNetUnfolderBase]: 4/33 cut-off events. [2025-02-17 22:50:27,751 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-17 22:50:27,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 33 events. 4/33 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 84 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2025-02-17 22:50:27,755 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 41 transitions, 110 flow [2025-02-17 22:50:27,758 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 33 transitions, 90 flow [2025-02-17 22:50:27,762 WARN L98 AmpleReduction]: Starting ample reduction [2025-02-17 22:50:28,362 INFO L100 AmpleReduction]: Finished ample reduction [2025-02-17 22:50:28,362 INFO L101 AmpleReduction]: Number of pruned transitions: 1801, Number of non-trivial ample sets: 2221 [2025-02-17 22:50:28,362 INFO L103 AmpleReduction]: Number of trivial ample sets caused by loops: 1669 [2025-02-17 22:50:28,372 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:50:28,372 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:50:28,372 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:50:28,372 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:50:28,372 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:50:28,372 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:50:28,372 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:50:28,372 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:50:28,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 1472 states, 1471 states have (on average 2.6954452753229097) internal successors, (3965), 1471 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:28,449 INFO L131 ngComponentsAnalysis]: Automaton has 102 accepting balls. 1188 [2025-02-17 22:50:28,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:50:28,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:50:28,454 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:50:28,454 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:50:28,455 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:50:28,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 1472 states, 1471 states have (on average 2.6954452753229097) internal successors, (3965), 1471 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:28,479 INFO L131 ngComponentsAnalysis]: Automaton has 102 accepting balls. 1188 [2025-02-17 22:50:28,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:50:28,480 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:50:28,481 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:50:28,481 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:50:28,486 INFO L752 eck$LassoCheckResult]: Stem: "[81] $Ultimate##0-->L16: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[120] L16-->L33-1: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0]" [2025-02-17 22:50:28,487 INFO L754 eck$LassoCheckResult]: Loop: "[87] L33-1-->L31: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[89] L31-->L32: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[90] L32-->L33: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[91] L33-->L33-1: Formula: (and (= v_f1_4 0) (< 0 v_f1_5)) InVars {f1=v_f1_5} OutVars{f1=v_f1_4} AuxVars[] AssignedVars[f1]" [2025-02-17 22:50:28,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:28,491 INFO L85 PathProgramCache]: Analyzing trace with hash 3592, now seen corresponding path program 1 times [2025-02-17 22:50:28,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:28,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582495815] [2025-02-17 22:50:28,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:28,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:28,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:50:28,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:50:28,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:28,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:28,551 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:28,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:50:28,556 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:50:28,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:28,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:28,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:28,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:28,571 INFO L85 PathProgramCache]: Analyzing trace with hash 3603748, now seen corresponding path program 1 times [2025-02-17 22:50:28,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:28,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016576616] [2025-02-17 22:50:28,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:28,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:28,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:50:28,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:50:28,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:28,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:28,585 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:28,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:50:28,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:50:28,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:28,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:28,590 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:28,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:28,591 INFO L85 PathProgramCache]: Analyzing trace with hash -974999637, now seen corresponding path program 1 times [2025-02-17 22:50:28,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:28,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091025200] [2025-02-17 22:50:28,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:28,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:28,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:50:28,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:50:28,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:28,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:50:28,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:50:28,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091025200] [2025-02-17 22:50:28,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091025200] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:50:28,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:50:28,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-17 22:50:28,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528424707] [2025-02-17 22:50:28,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:50:28,739 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:50:28,739 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:50:28,739 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:50:28,740 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:50:28,740 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:50:28,740 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:28,740 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:50:28,740 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:50:28,740 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:50:28,740 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:50:28,740 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:50:28,748 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:28,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:28,760 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:28,802 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:50:28,802 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:50:28,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:28,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:28,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:28,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:50:28,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:50:28,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:28,826 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:50:28,826 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f2=1} Honda state: {f2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:50:28,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:28,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:28,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:28,835 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:28,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-17 22:50:28,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:50:28,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:28,860 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 [2025-02-17 22:50:28,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:28,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:28,864 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:28,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-17 22:50:28,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:50:28,867 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:28,937 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:50:28,941 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 [2025-02-17 22:50:28,941 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:50:28,942 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:50:28,942 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:50:28,942 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:50:28,942 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:50:28,942 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:28,942 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:50:28,942 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:50:28,942 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:50:28,942 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:50:28,942 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:50:28,943 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:28,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:28,958 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:29,001 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:50:29,004 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:50:29,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:29,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:29,008 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:29,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-17 22:50:29,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:50:29,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:50:29,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:50:29,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:50:29,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:50:29,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:50:29,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:50:29,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:50:29,030 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:50:29,035 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 [2025-02-17 22:50:29,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:29,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:29,037 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:29,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-17 22:50:29,041 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:50:29,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:50:29,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:50:29,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:50:29,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:50:29,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:50:29,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:50:29,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:50:29,062 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:50:29,066 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:50:29,066 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:50:29,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:29,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:29,069 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:29,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-17 22:50:29,072 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:50:29,072 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:50:29,072 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:50:29,073 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, z) = -1*x1 + 1*z Supporting invariants [] [2025-02-17 22:50:29,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:29,080 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:50:29,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:29,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:50:29,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:50:29,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:29,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:29,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:50:29,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:50:29,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:50:29,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:50:29,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:29,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:29,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:50:29,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:50:29,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:50:29,195 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:50:29,200 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 1472 states, 1471 states have (on average 2.6954452753229097) internal successors, (3965), 1471 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:29,375 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 1472 states, 1471 states have (on average 2.6954452753229097) internal successors, (3965), 1471 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 3540 states and 10279 transitions. Complement of second has 6 states. [2025-02-17 22:50:29,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:50:29,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:29,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 75 transitions. [2025-02-17 22:50:29,386 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 75 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:50:29,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:29,386 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 75 transitions. Stem has 6 letters. Loop has 4 letters. [2025-02-17 22:50:29,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:29,386 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 75 transitions. Stem has 2 letters. Loop has 8 letters. [2025-02-17 22:50:29,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:29,387 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3540 states and 10279 transitions. [2025-02-17 22:50:29,423 INFO L131 ngComponentsAnalysis]: Automaton has 106 accepting balls. 859 [2025-02-17 22:50:29,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3540 states to 2746 states and 8374 transitions. [2025-02-17 22:50:29,463 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1324 [2025-02-17 22:50:29,468 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1695 [2025-02-17 22:50:29,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2746 states and 8374 transitions. [2025-02-17 22:50:29,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:50:29,469 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2746 states and 8374 transitions. [2025-02-17 22:50:29,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states and 8374 transitions. [2025-02-17 22:50:29,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-17 22:50:29,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2378. [2025-02-17 22:50:29,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2378 states, 2378 states have (on average 3.0361648444070646) internal successors, (7220), 2377 states have internal predecessors, (7220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:29,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 7220 transitions. [2025-02-17 22:50:29,600 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2378 states and 7220 transitions. [2025-02-17 22:50:29,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:50:29,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:50:29,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:50:29,602 INFO L87 Difference]: Start difference. First operand 2378 states and 7220 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:29,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:50:29,635 INFO L93 Difference]: Finished difference Result 1149 states and 2716 transitions. [2025-02-17 22:50:29,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1149 states and 2716 transitions. [2025-02-17 22:50:29,644 INFO L131 ngComponentsAnalysis]: Automaton has 72 accepting balls. 527 [2025-02-17 22:50:29,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1149 states to 632 states and 1464 transitions. [2025-02-17 22:50:29,647 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 630 [2025-02-17 22:50:29,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 632 [2025-02-17 22:50:29,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 632 states and 1464 transitions. [2025-02-17 22:50:29,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:50:29,653 INFO L218 hiAutomatonCegarLoop]: Abstraction has 632 states and 1464 transitions. [2025-02-17 22:50:29,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states and 1464 transitions. [2025-02-17 22:50:29,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 632. [2025-02-17 22:50:29,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 632 states have (on average 2.3164556962025316) internal successors, (1464), 631 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:29,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 1464 transitions. [2025-02-17 22:50:29,666 INFO L240 hiAutomatonCegarLoop]: Abstraction has 632 states and 1464 transitions. [2025-02-17 22:50:29,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:50:29,668 INFO L432 stractBuchiCegarLoop]: Abstraction has 632 states and 1464 transitions. [2025-02-17 22:50:29,668 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:50:29,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 632 states and 1464 transitions. [2025-02-17 22:50:29,670 INFO L131 ngComponentsAnalysis]: Automaton has 72 accepting balls. 527 [2025-02-17 22:50:29,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:50:29,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:50:29,670 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:50:29,670 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:50:29,671 INFO L752 eck$LassoCheckResult]: Stem: "[81] $Ultimate##0-->L16: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[120] L16-->L33-1: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0]" "[86] L33-1-->thread1FINAL: Formula: (<= v_z_2 v_x1_4) InVars {x1=v_x1_4, z=v_z_2} OutVars{x1=v_x1_4, z=v_z_2} AuxVars[] AssignedVars[]" "[88] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[111] L16-1-->L44: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" [2025-02-17 22:50:29,671 INFO L754 eck$LassoCheckResult]: Loop: "[93] L44-->L46: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" "[95] L46-->L46-1: Formula: (and (< 0 v_f2_6) (= v_f2_5 0)) InVars {f2=v_f2_6} OutVars{f2=v_f2_5} AuxVars[] AssignedVars[f2]" "[96] L46-1-->L52: Formula: (= v_x2_3 (+ v_x2_4 1)) InVars {x2=v_x2_4} OutVars{x2=v_x2_3} AuxVars[] AssignedVars[x2]" "[97] L52-->L44: Formula: (= v_f3_1 1) InVars {} OutVars{f3=v_f3_1} AuxVars[] AssignedVars[f3]" [2025-02-17 22:50:29,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:29,671 INFO L85 PathProgramCache]: Analyzing trace with hash 107094757, now seen corresponding path program 1 times [2025-02-17 22:50:29,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:29,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162609928] [2025-02-17 22:50:29,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:29,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:29,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:50:29,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:50:29,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:29,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:29,677 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:29,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:50:29,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:50:29,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:29,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:29,681 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:29,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:29,681 INFO L85 PathProgramCache]: Analyzing trace with hash 3788452, now seen corresponding path program 1 times [2025-02-17 22:50:29,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:29,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680126936] [2025-02-17 22:50:29,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:29,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:29,683 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:50:29,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:50:29,684 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:29,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:29,684 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:29,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:50:29,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:50:29,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:29,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:29,687 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:29,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:29,687 INFO L85 PathProgramCache]: Analyzing trace with hash -246947960, now seen corresponding path program 1 times [2025-02-17 22:50:29,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:29,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662393325] [2025-02-17 22:50:29,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:29,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:29,695 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-17 22:50:29,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-17 22:50:29,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:29,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:29,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:50:29,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:50:29,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662393325] [2025-02-17 22:50:29,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662393325] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:50:29,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:50:29,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:50:29,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469968626] [2025-02-17 22:50:29,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:50:29,753 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:50:29,754 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:50:29,754 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:50:29,754 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:50:29,754 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:50:29,754 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:29,754 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:50:29,754 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:50:29,754 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:50:29,754 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:50:29,754 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:50:29,756 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:29,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:29,763 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:29,796 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:50:29,796 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:50:29,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:29,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:29,798 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:29,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-17 22:50:29,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:50:29,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:29,817 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 [2025-02-17 22:50:29,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:29,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:29,819 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:29,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-17 22:50:29,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:50:29,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:29,883 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:50:29,886 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 [2025-02-17 22:50:29,887 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:50:29,887 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:50:29,887 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:50:29,887 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:50:29,887 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:50:29,887 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:29,887 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:50:29,887 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:50:29,887 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:50:29,887 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:50:29,887 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:50:29,888 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:29,893 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:29,896 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:29,928 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:50:29,928 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:50:29,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:29,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:29,931 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:29,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-17 22:50:29,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:50:29,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:50:29,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:50:29,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:50:29,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:50:29,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:50:29,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:50:29,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:50:29,950 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:50:29,953 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:50:29,953 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:50:29,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:29,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:29,955 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:29,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-17 22:50:29,957 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:50:29,957 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:50:29,957 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:50:29,957 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, z) = -1*x2 + 1*z Supporting invariants [] [2025-02-17 22:50:29,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:29,963 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:50:29,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:29,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:50:29,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:50:29,985 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:29,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:29,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:50:29,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:50:29,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:50:29,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:50:29,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:29,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:29,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:50:29,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:50:30,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:50:30,029 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:50:30,029 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 632 states and 1464 transitions. cyclomatic complexity: 904 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:30,096 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 632 states and 1464 transitions. cyclomatic complexity: 904. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1505 states and 3734 transitions. Complement of second has 6 states. [2025-02-17 22:50:30,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:50:30,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:30,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 63 transitions. [2025-02-17 22:50:30,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 5 letters. Loop has 4 letters. [2025-02-17 22:50:30,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:30,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 9 letters. Loop has 4 letters. [2025-02-17 22:50:30,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:30,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 5 letters. Loop has 8 letters. [2025-02-17 22:50:30,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:30,098 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1505 states and 3734 transitions. [2025-02-17 22:50:30,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:30,139 INFO L131 ngComponentsAnalysis]: Automaton has 77 accepting balls. 381 [2025-02-17 22:50:30,146 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1505 states to 1134 states and 2913 transitions. [2025-02-17 22:50:30,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 538 [2025-02-17 22:50:30,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 702 [2025-02-17 22:50:30,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1134 states and 2913 transitions. [2025-02-17 22:50:30,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:50:30,150 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1134 states and 2913 transitions. [2025-02-17 22:50:30,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states and 2913 transitions. [2025-02-17 22:50:30,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 973. [2025-02-17 22:50:30,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 973 states have (on average 2.5447070914696814) internal successors, (2476), 972 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:30,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 2476 transitions. [2025-02-17 22:50:30,168 INFO L240 hiAutomatonCegarLoop]: Abstraction has 973 states and 2476 transitions. [2025-02-17 22:50:30,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:50:30,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:50:30,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:50:30,169 INFO L87 Difference]: Start difference. First operand 973 states and 2476 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:30,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:50:30,184 INFO L93 Difference]: Finished difference Result 425 states and 925 transitions. [2025-02-17 22:50:30,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 425 states and 925 transitions. [2025-02-17 22:50:30,187 INFO L131 ngComponentsAnalysis]: Automaton has 47 accepting balls. 249 [2025-02-17 22:50:30,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 425 states to 378 states and 815 transitions. [2025-02-17 22:50:30,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 303 [2025-02-17 22:50:30,189 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 316 [2025-02-17 22:50:30,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 378 states and 815 transitions. [2025-02-17 22:50:30,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:50:30,190 INFO L218 hiAutomatonCegarLoop]: Abstraction has 378 states and 815 transitions. [2025-02-17 22:50:30,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states and 815 transitions. [2025-02-17 22:50:30,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 340. [2025-02-17 22:50:30,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 340 states have (on average 2.164705882352941) internal successors, (736), 339 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:30,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 736 transitions. [2025-02-17 22:50:30,195 INFO L240 hiAutomatonCegarLoop]: Abstraction has 340 states and 736 transitions. [2025-02-17 22:50:30,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:50:30,196 INFO L432 stractBuchiCegarLoop]: Abstraction has 340 states and 736 transitions. [2025-02-17 22:50:30,196 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:50:30,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 340 states and 736 transitions. [2025-02-17 22:50:30,197 INFO L131 ngComponentsAnalysis]: Automaton has 43 accepting balls. 224 [2025-02-17 22:50:30,197 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:50:30,197 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:50:30,197 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-17 22:50:30,197 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:50:30,198 INFO L752 eck$LassoCheckResult]: Stem: "[81] $Ultimate##0-->L16: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[120] L16-->L33-1: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0]" "[87] L33-1-->L31: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[89] L31-->L32: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[111] L16-1-->L44: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[114] L17-->L59: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" "[93] L44-->L46: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" [2025-02-17 22:50:30,198 INFO L754 eck$LassoCheckResult]: Loop: "[99] L59-->L61: Formula: (< v_x3_1 v_z_5) InVars {x3=v_x3_1, z=v_z_5} OutVars{x3=v_x3_1, z=v_z_5} AuxVars[] AssignedVars[]" "[101] L61-->L61-1: Formula: (and (< 0 v_f3_6) (= v_f3_5 0)) InVars {f3=v_f3_6} OutVars{f3=v_f3_5} AuxVars[] AssignedVars[f3]" "[102] L61-1-->L67: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" "[103] L67-->L59: Formula: (= v_f4_1 1) InVars {} OutVars{f4=v_f4_1} AuxVars[] AssignedVars[f4]" [2025-02-17 22:50:30,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:30,198 INFO L85 PathProgramCache]: Analyzing trace with hash -160196688, now seen corresponding path program 1 times [2025-02-17 22:50:30,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:30,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842699317] [2025-02-17 22:50:30,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:30,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:30,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:50:30,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:50:30,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:30,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:30,207 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:30,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:50:30,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:50:30,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:30,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:30,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:30,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:30,213 INFO L85 PathProgramCache]: Analyzing trace with hash 3973156, now seen corresponding path program 1 times [2025-02-17 22:50:30,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:30,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123235985] [2025-02-17 22:50:30,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:30,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:30,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:50:30,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:50:30,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:30,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:30,216 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:30,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:50:30,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:50:30,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:30,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:30,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:30,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:30,218 INFO L85 PathProgramCache]: Analyzing trace with hash -558970797, now seen corresponding path program 1 times [2025-02-17 22:50:30,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:30,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696161167] [2025-02-17 22:50:30,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:30,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:30,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-17 22:50:30,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-17 22:50:30,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:30,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:30,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:50:30,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:50:30,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696161167] [2025-02-17 22:50:30,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696161167] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:50:30,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:50:30,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:50:30,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505663426] [2025-02-17 22:50:30,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:50:30,284 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:50:30,284 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:50:30,284 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:50:30,284 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:50:30,284 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:50:30,284 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:30,284 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:50:30,285 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:50:30,285 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:50:30,285 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:50:30,285 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:50:30,286 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:30,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:30,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:30,323 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:50:30,323 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:50:30,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:30,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:30,325 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:30,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-17 22:50:30,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:50:30,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:30,339 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:50:30,339 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f4=1} Honda state: {f4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:50:30,344 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 [2025-02-17 22:50:30,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:30,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:30,346 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:30,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-17 22:50:30,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:50:30,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:30,364 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 [2025-02-17 22:50:30,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:30,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:30,366 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:30,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-17 22:50:30,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:50:30,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:30,390 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:50:30,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:30,394 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:50:30,394 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:50:30,394 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:50:30,394 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:50:30,394 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:50:30,394 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:30,394 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:50:30,394 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:50:30,394 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:50:30,394 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:50:30,394 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:50:30,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:30,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:30,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:30,431 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:50:30,431 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:50:30,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:30,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:30,434 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:30,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-17 22:50:30,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:50:30,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:50:30,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:50:30,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:50:30,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:50:30,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:50:30,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:50:30,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:50:30,449 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:50:30,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:30,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:30,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:30,460 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:30,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-17 22:50:30,465 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:50:30,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:50:30,476 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:50:30,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:50:30,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:50:30,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:50:30,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:50:30,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:50:30,478 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:50:30,480 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-02-17 22:50:30,480 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:50:30,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:30,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:30,482 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:30,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-17 22:50:30,484 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:50:30,484 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:50:30,484 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:50:30,484 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f3) = 1*f3 Supporting invariants [] [2025-02-17 22:50:30,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-02-17 22:50:30,490 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:50:30,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:30,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:50:30,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:50:30,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:30,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:30,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:50:30,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:50:30,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:50:30,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:50:30,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:30,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:30,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:50:30,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:50:30,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:50:30,554 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:50:30,554 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 340 states and 736 transitions. cyclomatic complexity: 449 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:30,583 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 340 states and 736 transitions. cyclomatic complexity: 449. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 598 states and 1377 transitions. Complement of second has 5 states. [2025-02-17 22:50:30,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-17 22:50:30,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:30,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2025-02-17 22:50:30,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 7 letters. Loop has 4 letters. [2025-02-17 22:50:30,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:30,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 11 letters. Loop has 4 letters. [2025-02-17 22:50:30,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:30,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 7 letters. Loop has 8 letters. [2025-02-17 22:50:30,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:30,584 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 598 states and 1377 transitions. [2025-02-17 22:50:30,588 INFO L131 ngComponentsAnalysis]: Automaton has 51 accepting balls. 223 [2025-02-17 22:50:30,590 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 598 states to 519 states and 1214 transitions. [2025-02-17 22:50:30,590 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 297 [2025-02-17 22:50:30,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 329 [2025-02-17 22:50:30,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 519 states and 1214 transitions. [2025-02-17 22:50:30,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:50:30,591 INFO L218 hiAutomatonCegarLoop]: Abstraction has 519 states and 1214 transitions. [2025-02-17 22:50:30,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states and 1214 transitions. [2025-02-17 22:50:30,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 464. [2025-02-17 22:50:30,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 464 states have (on average 2.3642241379310347) internal successors, (1097), 463 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:30,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1097 transitions. [2025-02-17 22:50:30,600 INFO L240 hiAutomatonCegarLoop]: Abstraction has 464 states and 1097 transitions. [2025-02-17 22:50:30,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:50:30,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:50:30,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:50:30,601 INFO L87 Difference]: Start difference. First operand 464 states and 1097 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:30,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:50:30,614 INFO L93 Difference]: Finished difference Result 280 states and 573 transitions. [2025-02-17 22:50:30,614 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 280 states and 573 transitions. [2025-02-17 22:50:30,615 INFO L131 ngComponentsAnalysis]: Automaton has 36 accepting balls. 108 [2025-02-17 22:50:30,616 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 280 states to 209 states and 418 transitions. [2025-02-17 22:50:30,616 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 168 [2025-02-17 22:50:30,616 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 168 [2025-02-17 22:50:30,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 209 states and 418 transitions. [2025-02-17 22:50:30,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:50:30,617 INFO L218 hiAutomatonCegarLoop]: Abstraction has 209 states and 418 transitions. [2025-02-17 22:50:30,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states and 418 transitions. [2025-02-17 22:50:30,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 198. [2025-02-17 22:50:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 198 states have (on average 2.01010101010101) internal successors, (398), 197 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:30,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 398 transitions. [2025-02-17 22:50:30,620 INFO L240 hiAutomatonCegarLoop]: Abstraction has 198 states and 398 transitions. [2025-02-17 22:50:30,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:50:30,621 INFO L432 stractBuchiCegarLoop]: Abstraction has 198 states and 398 transitions. [2025-02-17 22:50:30,621 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:50:30,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 398 transitions. [2025-02-17 22:50:30,622 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 99 [2025-02-17 22:50:30,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:50:30,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:50:30,622 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-17 22:50:30,622 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:50:30,623 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]" "[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]" "[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]" "[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[]" "[117] L18-->L74: Formula: (and (= 4 v_thread4Thread1of1ForFork2_thidvar2_2) (= 4 v_thread4Thread1of1ForFork2_thidvar3_2) (= 4 v_thread4Thread1of1ForFork2_thidvar1_2) (= 4 v_thread4Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread4Thread1of1ForFork2_thidvar3=v_thread4Thread1of1ForFork2_thidvar3_2, thread4Thread1of1ForFork2_thidvar0=v_thread4Thread1of1ForFork2_thidvar0_2, thread4Thread1of1ForFork2_thidvar2=v_thread4Thread1of1ForFork2_thidvar2_2, thread4Thread1of1ForFork2_thidvar1=v_thread4Thread1of1ForFork2_thidvar1_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork2_thidvar3, thread4Thread1of1ForFork2_thidvar0, thread4Thread1of1ForFork2_thidvar2, thread4Thread1of1ForFork2_thidvar1]" [2025-02-17 22:50:30,623 INFO L754 eck$LassoCheckResult]: Loop: "[105] L74-->L76: Formula: (< v_x4_2 v_z_7) InVars {x4=v_x4_2, z=v_z_7} OutVars{x4=v_x4_2, z=v_z_7} AuxVars[] AssignedVars[]" "[107] L76-->L76-1: Formula: (and (< 0 v_f4_6) (= v_f4_5 0)) InVars {f4=v_f4_6} OutVars{f4=v_f4_5} AuxVars[] AssignedVars[f4]" "[108] L76-1-->L74: Formula: (= v_x4_3 (+ v_x4_4 1)) InVars {x4=v_x4_4} OutVars{x4=v_x4_3} AuxVars[] AssignedVars[x4]" [2025-02-17 22:50:30,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:30,623 INFO L85 PathProgramCache]: Analyzing trace with hash -671129915, now seen corresponding path program 1 times [2025-02-17 22:50:30,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:30,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986361370] [2025-02-17 22:50:30,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:30,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:30,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:50:30,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:50:30,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:30,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:30,630 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:30,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:50:30,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:50:30,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:30,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:30,638 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:30,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:30,638 INFO L85 PathProgramCache]: Analyzing trace with hash 134121, now seen corresponding path program 1 times [2025-02-17 22:50:30,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:30,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905457728] [2025-02-17 22:50:30,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:30,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:30,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:50:30,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:50:30,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:30,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:30,646 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:30,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:50:30,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:50:30,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:30,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:30,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:30,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:30,652 INFO L85 PathProgramCache]: Analyzing trace with hash -558430555, now seen corresponding path program 1 times [2025-02-17 22:50:30,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:30,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474210461] [2025-02-17 22:50:30,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:30,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:30,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-17 22:50:30,659 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-17 22:50:30,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:30,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:30,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:50:30,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:50:30,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474210461] [2025-02-17 22:50:30,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474210461] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:50:30,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:50:30,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:50:30,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341478437] [2025-02-17 22:50:30,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:50:30,700 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:50:30,700 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:50:30,700 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:50:30,700 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:50:30,700 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:50:30,700 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:30,700 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:50:30,700 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:50:30,700 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:50:30,700 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:50:30,700 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:50:30,701 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:30,710 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:30,737 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:50:30,738 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:50:30,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:30,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:30,740 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:30,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-02-17 22:50:30,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:50:30,742 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:30,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:30,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:30,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:30,761 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:30,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-02-17 22:50:30,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:50:30,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:30,829 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:50:30,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:30,833 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:50:30,834 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:50:30,834 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:50:30,834 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:50:30,834 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:50:30,834 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:30,834 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:50:30,834 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:50:30,834 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved4-buggy.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:50:30,834 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:50:30,834 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:50:30,834 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:30,840 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:30,866 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:50:30,866 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:50:30,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:30,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:30,869 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:30,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-02-17 22:50:30,870 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:50:30,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:50:30,881 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:50:30,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:50:30,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:50:30,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:50:30,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:50:30,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:50:30,883 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:50:30,885 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:50:30,885 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:50:30,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:30,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:30,904 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:30,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-02-17 22:50:30,913 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:50:30,913 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:50:30,913 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:50:30,913 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x4) = 1*z - 1*x4 Supporting invariants [] [2025-02-17 22:50:30,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:30,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-02-17 22:50:30,923 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:50:30,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:30,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:50:30,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:50:30,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:30,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:30,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:50:30,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:50:30,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:50:30,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:50:30,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:30,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:30,957 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:50:30,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:50:30,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:50:30,975 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:50:30,975 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 198 states and 398 transitions. cyclomatic complexity: 243 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:31,021 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 198 states and 398 transitions. cyclomatic complexity: 243. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 479 states and 1037 transitions. Complement of second has 6 states. [2025-02-17 22:50:31,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:50:31,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:31,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2025-02-17 22:50:31,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 64 transitions. Stem has 8 letters. Loop has 3 letters. [2025-02-17 22:50:31,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:31,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 64 transitions. Stem has 11 letters. Loop has 3 letters. [2025-02-17 22:50:31,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:31,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 64 transitions. Stem has 8 letters. Loop has 6 letters. [2025-02-17 22:50:31,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:31,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 479 states and 1037 transitions. [2025-02-17 22:50:31,025 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:50:31,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 479 states to 0 states and 0 transitions. [2025-02-17 22:50:31,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:50:31,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:50:31,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:50:31,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:50:31,025 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:50:31,025 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:50:31,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:50:31,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:50:31,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:50:31,026 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:31,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:50:31,026 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-02-17 22:50:31,026 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-02-17 22:50:31,026 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:50:31,026 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-02-17 22:50:31,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:50:31,026 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:50:31,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:50:31,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:50:31,026 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:50:31,026 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:50:31,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-17 22:50:31,026 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:50:31,026 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:50:31,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:50:31,026 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:50:31,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:50:31,031 INFO L201 PluginConnector]: Adding new model interleaved4-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:50:31 BoogieIcfgContainer [2025-02-17 22:50:31,032 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:50:31,032 INFO L158 Benchmark]: Toolchain (without parser) took 3657.65ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 86.2MB in the beginning and 91.1MB in the end (delta: -4.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:50:31,032 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.20ms. Allocated memory is still 159.4MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:50:31,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.47ms. Allocated memory is still 159.4MB. Free memory was 86.1MB in the beginning and 84.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:50:31,033 INFO L158 Benchmark]: Boogie Preprocessor took 9.37ms. Allocated memory is still 159.4MB. Free memory was 84.8MB in the beginning and 84.1MB in the end (delta: 747.8kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:50:31,033 INFO L158 Benchmark]: RCFGBuilder took 202.14ms. Allocated memory is still 159.4MB. Free memory was 84.1MB in the beginning and 74.4MB in the end (delta: 9.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-02-17 22:50:31,034 INFO L158 Benchmark]: BuchiAutomizer took 3427.63ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 74.2MB in the beginning and 91.1MB in the end (delta: -16.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:50:31,034 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 87.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 15.47ms. Allocated memory is still 159.4MB. Free memory was 86.1MB in the beginning and 84.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 9.37ms. Allocated memory is still 159.4MB. Free memory was 84.8MB in the beginning and 84.1MB in the end (delta: 747.8kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 202.14ms. Allocated memory is still 159.4MB. Free memory was 84.1MB in the beginning and 74.4MB in the end (delta: 9.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 3427.63ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 74.2MB in the beginning and 91.1MB in the end (delta: -16.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (4 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + z and consists of 4 locations. One deterministic module has affine ranking function z + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function f3 and consists of 3 locations. One deterministic module has affine ranking function -1 * x4 + z and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 633 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.1s 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, 257 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 253 mSDsluCounter, 249 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 241 IncrementalHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 152 mSDtfsCounter, 241 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: 24ms 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: 0.6s InitialAbstraction: Time to compute Ample Reduction [ms]: 652, Trivial Ample Sets caused by loops: 1669, Number of non-trivial ample sets: 2221, Number of pruned transitions: 1801, Number of transitions in reduction automaton: 3965, Number of states in reduction automaton: 1472, Underlying: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:50:31,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-02-17 22:50:31,249 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...