/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/3_thr/interleaved3-buggy.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:45:43,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:45:43,847 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:45:43,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:45:43,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:45:43,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:45:43,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:45:43,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:45:43,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:45:43,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:45:43,871 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:45:43,871 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:45:43,871 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:45:43,871 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:45:43,871 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:45:43,871 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:45:43,871 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:45:43,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:45:43,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:45:43,872 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:45:43,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:45:43,872 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:45:43,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:45:43,872 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:45:43,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:45:43,872 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:45:43,872 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:45:43,872 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:45:43,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:45:43,872 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:45:43,872 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:45:43,872 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:45:43,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:45:43,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:45:43,873 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:45:43,873 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:45:43,873 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:45:44,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:45:44,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:45:44,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:45:44,086 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:45:44,087 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:45:44,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/3_thr/interleaved3-buggy.c.bpl [2025-02-17 22:45:44,088 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/3_thr/interleaved3-buggy.c.bpl' [2025-02-17 22:45:44,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:45:44,102 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:45:44,103 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:44,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:45:44,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:45:44,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:44" (1/1) ... [2025-02-17 22:45:44,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:44" (1/1) ... [2025-02-17 22:45:44,121 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:45:44,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:44,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:45:44,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:45:44,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:45:44,128 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:44" (1/1) ... [2025-02-17 22:45:44,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:44" (1/1) ... [2025-02-17 22:45:44,129 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:44" (1/1) ... [2025-02-17 22:45:44,129 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:44" (1/1) ... [2025-02-17 22:45:44,132 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:44" (1/1) ... [2025-02-17 22:45:44,133 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:44" (1/1) ... [2025-02-17 22:45:44,136 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:44" (1/1) ... [2025-02-17 22:45:44,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:44" (1/1) ... [2025-02-17 22:45:44,136 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:44" (1/1) ... [2025-02-17 22:45:44,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:45:44,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:45:44,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:45:44,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:45:44,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:44" (1/1) ... [2025-02-17 22:45:44,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:44,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:45:44,191 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:45:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:45:44,191 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:45:44,191 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:45:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:45:44,191 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:45:44,192 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:45:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:45:44,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:45:44,192 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:45:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:45:44,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:45:44,193 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:45:44,227 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:45:44,229 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:45:44,289 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:45:44,290 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:45:44,305 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:45:44,305 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:45:44,305 INFO L201 PluginConnector]: Adding new model interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:44 BoogieIcfgContainer [2025-02-17 22:45:44,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:45:44,306 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:45:44,306 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:45:44,311 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:45:44,311 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:44,311 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:44" (1/2) ... [2025-02-17 22:45:44,312 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37a8b5f3 and model type interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:45:44, skipping insertion in model container [2025-02-17 22:45:44,312 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:44,312 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:44" (2/2) ... [2025-02-17 22:45:44,313 INFO L363 chiAutomizerObserver]: Analyzing ICFG interleaved3-buggy.c.bpl [2025-02-17 22:45:44,365 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-17 22:45:44,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 31 transitions, 83 flow [2025-02-17 22:45:44,418 INFO L124 PetriNetUnfolderBase]: 3/25 cut-off events. [2025-02-17 22:45:44,420 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-17 22:45:44,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 3/25 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 48 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2025-02-17 22:45:44,423 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 31 transitions, 83 flow [2025-02-17 22:45:44,425 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 25 transitions, 68 flow [2025-02-17 22:45:44,435 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:45:44,435 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:45:44,435 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:45:44,435 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:45:44,435 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:45:44,435 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:45:44,435 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:45:44,435 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:45:44,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:45:44,496 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 237 [2025-02-17 22:45:44,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:44,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:44,499 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:44,499 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:45:44,500 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:45:44,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 260 states, but on-demand construction may add more states [2025-02-17 22:45:44,507 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 237 [2025-02-17 22:45:44,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:44,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:44,509 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:44,509 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:45:44,513 INFO L752 eck$LassoCheckResult]: Stem: "[61] $Ultimate##0-->L14: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x2_5 0)) InVars {x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5} OutVars{x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5} AuxVars[] AssignedVars[]" "[87] L14-->L29-1: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" [2025-02-17 22:45:44,513 INFO L754 eck$LassoCheckResult]: Loop: "[66] L29-1-->L27: 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[]" "[68] L27-->L28: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[69] L28-->L29: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[70] L29-->L29-1: 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 22:45:44,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:44,517 INFO L85 PathProgramCache]: Analyzing trace with hash 2939, now seen corresponding path program 1 times [2025-02-17 22:45:44,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:44,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084857831] [2025-02-17 22:45:44,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:44,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:44,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:44,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:44,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:44,573 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:44,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:44,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:44,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:44,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:44,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:44,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2957284, now seen corresponding path program 1 times [2025-02-17 22:45:44,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:44,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809586047] [2025-02-17 22:45:44,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:44,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:44,598 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:44,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:44,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:44,601 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:44,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:44,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:44,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:44,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:44,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:44,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1578705314, now seen corresponding path program 1 times [2025-02-17 22:45:44,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:44,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235602322] [2025-02-17 22:45:44,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:44,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:44,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:44,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:44,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:44,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:44,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:44,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235602322] [2025-02-17 22:45:44,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235602322] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:44,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:44,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-17 22:45:44,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308011873] [2025-02-17 22:45:44,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:44,736 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:44,737 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:44,737 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:44,737 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:44,737 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:44,737 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,737 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:44,737 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:44,737 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3-buggy.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:44,737 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:44,737 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:44,748 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,767 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,820 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:44,820 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:44,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:44,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:45:44,828 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:44,828 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:44,843 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:44,843 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f2=1} Honda state: {f2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:44,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-17 22:45:44,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,852 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:44,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-17 22:45:44,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:44,856 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:44,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-17 22:45:44,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,878 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:44,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-17 22:45:44,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:44,881 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:44,906 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:44,910 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 22:45:44,911 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:44,911 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:44,911 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:44,911 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:44,911 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:44,911 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,911 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:44,911 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:44,911 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3-buggy.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:44,911 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:44,911 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:44,912 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,991 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:45,010 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:45,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,015 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-17 22:45:45,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:45,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:45,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:45,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:45,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:45,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:45,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:45,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:45,038 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:45,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-02-17 22:45:45,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,047 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-17 22:45:45,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:45,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:45,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:45,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:45,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:45,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:45,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:45,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:45,066 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:45,069 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:45,070 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:45,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,073 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-17 22:45:45,076 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:45,076 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:45,076 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:45,077 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f1) = 1*f1 Supporting invariants [] [2025-02-17 22:45:45,082 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 22:45:45,085 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:45,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:45,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:45,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:45,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:45,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:45,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:45,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:45,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:45,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:45,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:45,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:45,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:45,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:45,180 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-02-17 22:45:45,183 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 260 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:45,274 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 260 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 664 states and 2143 transitions. Complement of second has 4 states. [2025-02-17 22:45:45,275 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 22:45:45,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:45,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2025-02-17 22:45:45,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:45:45,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:45,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 6 letters. Loop has 4 letters. [2025-02-17 22:45:45,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:45,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 2 letters. Loop has 8 letters. [2025-02-17 22:45:45,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:45,283 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 664 states and 2143 transitions. [2025-02-17 22:45:45,293 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 209 [2025-02-17 22:45:45,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 664 states to 489 states and 1582 transitions. [2025-02-17 22:45:45,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 227 [2025-02-17 22:45:45,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 325 [2025-02-17 22:45:45,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 489 states and 1582 transitions. [2025-02-17 22:45:45,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:45,308 INFO L218 hiAutomatonCegarLoop]: Abstraction has 489 states and 1582 transitions. [2025-02-17 22:45:45,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states and 1582 transitions. [2025-02-17 22:45:45,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 393. [2025-02-17 22:45:45,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 393 states have (on average 3.2111959287531806) internal successors, (1262), 392 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:45,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 1262 transitions. [2025-02-17 22:45:45,354 INFO L240 hiAutomatonCegarLoop]: Abstraction has 393 states and 1262 transitions. [2025-02-17 22:45:45,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:45,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:45:45,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:45:45,356 INFO L87 Difference]: Start difference. First operand 393 states and 1262 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 22:45:45,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:45,373 INFO L93 Difference]: Finished difference Result 360 states and 1000 transitions. [2025-02-17 22:45:45,373 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 360 states and 1000 transitions. [2025-02-17 22:45:45,376 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 209 [2025-02-17 22:45:45,378 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 360 states to 229 states and 641 transitions. [2025-02-17 22:45:45,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 229 [2025-02-17 22:45:45,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 229 [2025-02-17 22:45:45,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 229 states and 641 transitions. [2025-02-17 22:45:45,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:45,381 INFO L218 hiAutomatonCegarLoop]: Abstraction has 229 states and 641 transitions. [2025-02-17 22:45:45,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states and 641 transitions. [2025-02-17 22:45:45,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2025-02-17 22:45:45,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 229 states have (on average 2.7991266375545854) internal successors, (641), 228 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:45,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 641 transitions. [2025-02-17 22:45:45,391 INFO L240 hiAutomatonCegarLoop]: Abstraction has 229 states and 641 transitions. [2025-02-17 22:45:45,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:45:45,392 INFO L432 stractBuchiCegarLoop]: Abstraction has 229 states and 641 transitions. [2025-02-17 22:45:45,392 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:45:45,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 229 states and 641 transitions. [2025-02-17 22:45:45,393 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 209 [2025-02-17 22:45:45,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:45,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:45,394 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:45,394 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:45:45,394 INFO L752 eck$LassoCheckResult]: Stem: "[61] $Ultimate##0-->L14: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x2_5 0)) InVars {x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5} OutVars{x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5} AuxVars[] AssignedVars[]" "[87] L14-->L29-1: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[90] L14-1-->L40: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_2) (= 2 v_thread2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_2, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0]" [2025-02-17 22:45:45,394 INFO L754 eck$LassoCheckResult]: Loop: "[72] L40-->L42: 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[]" "[74] L42-->L42-1: Formula: (and (< 0 v_f2_6) (= v_f2_5 0)) InVars {f2=v_f2_6} OutVars{f2=v_f2_5} AuxVars[] AssignedVars[f2]" "[75] L42-1-->L48: Formula: (= v_x2_3 (+ v_x2_4 1)) InVars {x2=v_x2_4} OutVars{x2=v_x2_3} AuxVars[] AssignedVars[x2]" "[76] L48-->L40: Formula: (= v_f3_1 1) InVars {} OutVars{f3=v_f3_1} AuxVars[] AssignedVars[f3]" [2025-02-17 22:45:45,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:45,395 INFO L85 PathProgramCache]: Analyzing trace with hash 91199, now seen corresponding path program 1 times [2025-02-17 22:45:45,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:45,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469162441] [2025-02-17 22:45:45,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:45,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:45,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:45,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:45,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,398 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:45,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:45,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:45,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:45,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:45,403 INFO L85 PathProgramCache]: Analyzing trace with hash 3141988, now seen corresponding path program 1 times [2025-02-17 22:45:45,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:45,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132833052] [2025-02-17 22:45:45,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:45,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:45,405 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:45,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:45,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,409 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:45,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:45,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:45,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,413 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:45,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:45,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1672935774, now seen corresponding path program 1 times [2025-02-17 22:45:45,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:45,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650769741] [2025-02-17 22:45:45,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:45,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:45,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:45,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:45,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:45,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:45,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:45,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650769741] [2025-02-17 22:45:45,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650769741] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:45,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:45,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:45:45,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036242266] [2025-02-17 22:45:45,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:45,479 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:45,479 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:45,479 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:45,479 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:45,479 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:45,479 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,479 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:45,479 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:45,479 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3-buggy.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:45,479 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:45,479 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:45,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,482 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,487 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,519 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:45,519 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:45,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,522 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-17 22:45:45,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:45,525 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:45,535 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:45,536 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f3=1} Honda state: {f3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:45,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-17 22:45:45,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,543 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-17 22:45:45,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:45,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:45,559 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 22:45:45,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,561 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-17 22:45:45,563 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:45,563 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:45,584 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:45,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-02-17 22:45:45,588 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:45,588 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:45,588 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:45,588 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:45,588 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:45,588 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,588 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:45,589 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:45,589 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3-buggy.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:45,589 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:45,589 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:45,589 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,594 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,596 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,625 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:45,625 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:45,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,627 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-17 22:45:45,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:45,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:45,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:45,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:45,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:45,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:45,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:45,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:45,642 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:45,644 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:45,644 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:45,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,646 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-17 22:45:45,648 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:45,648 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:45,648 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:45,648 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f2) = 1*f2 Supporting invariants [] [2025-02-17 22:45:45,653 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 22:45:45,654 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:45,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:45,670 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:45,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:45,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:45,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:45,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:45,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:45,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:45,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:45,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:45,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:45,717 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 22:45:45,718 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 22:45:45,718 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 229 states and 641 transitions. cyclomatic complexity: 454 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:45,743 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 229 states and 641 transitions. cyclomatic complexity: 454. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 630 states and 1825 transitions. Complement of second has 5 states. [2025-02-17 22:45:45,744 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 22:45:45,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:45,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2025-02-17 22:45:45,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 3 letters. Loop has 4 letters. [2025-02-17 22:45:45,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:45,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 7 letters. Loop has 4 letters. [2025-02-17 22:45:45,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:45,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 3 letters. Loop has 8 letters. [2025-02-17 22:45:45,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:45,746 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 630 states and 1825 transitions. [2025-02-17 22:45:45,752 INFO L131 ngComponentsAnalysis]: Automaton has 49 accepting balls. 159 [2025-02-17 22:45:45,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 630 states to 485 states and 1408 transitions. [2025-02-17 22:45:45,756 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 229 [2025-02-17 22:45:45,757 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 322 [2025-02-17 22:45:45,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 485 states and 1408 transitions. [2025-02-17 22:45:45,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:45,757 INFO L218 hiAutomatonCegarLoop]: Abstraction has 485 states and 1408 transitions. [2025-02-17 22:45:45,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states and 1408 transitions. [2025-02-17 22:45:45,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 388. [2025-02-17 22:45:45,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 388 states have (on average 2.935567010309278) internal successors, (1139), 387 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:45,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 1139 transitions. [2025-02-17 22:45:45,771 INFO L240 hiAutomatonCegarLoop]: Abstraction has 388 states and 1139 transitions. [2025-02-17 22:45:45,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:45,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:45:45,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:45:45,772 INFO L87 Difference]: Start difference. First operand 388 states and 1139 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:45,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:45,789 INFO L93 Difference]: Finished difference Result 277 states and 662 transitions. [2025-02-17 22:45:45,789 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 277 states and 662 transitions. [2025-02-17 22:45:45,791 INFO L131 ngComponentsAnalysis]: Automaton has 41 accepting balls. 123 [2025-02-17 22:45:45,792 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 277 states to 181 states and 433 transitions. [2025-02-17 22:45:45,792 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 170 [2025-02-17 22:45:45,793 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 174 [2025-02-17 22:45:45,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 181 states and 433 transitions. [2025-02-17 22:45:45,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:45,795 INFO L218 hiAutomatonCegarLoop]: Abstraction has 181 states and 433 transitions. [2025-02-17 22:45:45,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states and 433 transitions. [2025-02-17 22:45:45,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 143. [2025-02-17 22:45:45,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 143 states have (on average 2.4825174825174825) internal successors, (355), 142 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:45,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 355 transitions. [2025-02-17 22:45:45,798 INFO L240 hiAutomatonCegarLoop]: Abstraction has 143 states and 355 transitions. [2025-02-17 22:45:45,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:45:45,800 INFO L432 stractBuchiCegarLoop]: Abstraction has 143 states and 355 transitions. [2025-02-17 22:45:45,800 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:45:45,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states and 355 transitions. [2025-02-17 22:45:45,801 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 99 [2025-02-17 22:45:45,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:45,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:45,802 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:45:45,802 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:45,802 INFO L752 eck$LassoCheckResult]: Stem: "[61] $Ultimate##0-->L14: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x2_5 0)) InVars {x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5} OutVars{x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5} AuxVars[] AssignedVars[]" "[87] L14-->L29-1: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[90] L14-1-->L40: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_2) (= 2 v_thread2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_2, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0]" "[84] L15-->L55: Formula: (and (= 3 v_thread3Thread1of1ForFork0_thidvar2_2) (= 3 v_thread3Thread1of1ForFork0_thidvar0_2) (= 3 v_thread3Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_2, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_2, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork0_thidvar2, thread3Thread1of1ForFork0_thidvar1, thread3Thread1of1ForFork0_thidvar0]" [2025-02-17 22:45:45,802 INFO L754 eck$LassoCheckResult]: Loop: "[78] L55-->L57: 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[]" "[80] L57-->L57-1: Formula: (and (< 0 v_f3_6) (= v_f3_5 0)) InVars {f3=v_f3_6} OutVars{f3=v_f3_5} AuxVars[] AssignedVars[f3]" "[81] L57-1-->L55: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" [2025-02-17 22:45:45,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:45,802 INFO L85 PathProgramCache]: Analyzing trace with hash 2827253, now seen corresponding path program 1 times [2025-02-17 22:45:45,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:45,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092486777] [2025-02-17 22:45:45,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:45,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:45,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:45,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:45,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,812 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:45,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:45,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:45,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,818 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:45,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:45,818 INFO L85 PathProgramCache]: Analyzing trace with hash 107310, now seen corresponding path program 1 times [2025-02-17 22:45:45,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:45,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725832545] [2025-02-17 22:45:45,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:45,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:45,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:45,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:45,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,824 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:45,825 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:45,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:45,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,826 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:45,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:45,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1672574278, now seen corresponding path program 1 times [2025-02-17 22:45:45,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:45,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670636282] [2025-02-17 22:45:45,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:45,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:45,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:45,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:45,838 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:45,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:45,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670636282] [2025-02-17 22:45:45,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670636282] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:45,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:45,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:45:45,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555137580] [2025-02-17 22:45:45,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:45,885 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:45,886 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:45,886 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:45,886 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:45,886 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:45,886 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,886 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:45,886 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:45,886 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3-buggy.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:45,886 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:45,886 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:45,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,891 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,916 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:45,916 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:45,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,918 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-17 22:45:45,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:45,921 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:45,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:45,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,940 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-17 22:45:45,942 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:45,942 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:45,964 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:45,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-02-17 22:45:45,967 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:45,967 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:45,967 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:45,968 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:45,968 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:45,968 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,968 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:45,968 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:45,968 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3-buggy.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:45,968 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:45,968 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:45,968 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,005 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:46,005 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:46,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,008 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:46,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-17 22:45:46,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:46,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:46,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:46,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:46,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:46,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:46,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:46,020 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:46,022 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:46,024 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:46,024 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:46,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,117 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:46,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-17 22:45:46,119 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:46,119 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:46,119 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:46,119 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f3) = 1*f3 Supporting invariants [] [2025-02-17 22:45:46,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-02-17 22:45:46,125 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:46,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:46,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:46,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:46,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:46,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:46,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:46,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:46,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:46,154 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:46,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:46,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:46,155 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:46,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:46,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:46,168 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 22:45:46,169 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 143 states and 355 transitions. cyclomatic complexity: 247 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:46,193 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 143 states and 355 transitions. cyclomatic complexity: 247. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 409 states and 1109 transitions. Complement of second has 5 states. [2025-02-17 22:45:46,193 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 22:45:46,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:46,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2025-02-17 22:45:46,194 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-17 22:45:46,194 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:46,194 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-17 22:45:46,194 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:46,194 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 4 letters. Loop has 6 letters. [2025-02-17 22:45:46,194 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:46,194 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 409 states and 1109 transitions. [2025-02-17 22:45:46,197 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2025-02-17 22:45:46,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 409 states to 153 states and 359 transitions. [2025-02-17 22:45:46,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2025-02-17 22:45:46,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2025-02-17 22:45:46,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 153 states and 359 transitions. [2025-02-17 22:45:46,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:46,199 INFO L218 hiAutomatonCegarLoop]: Abstraction has 153 states and 359 transitions. [2025-02-17 22:45:46,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states and 359 transitions. [2025-02-17 22:45:46,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 120. [2025-02-17 22:45:46,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 2.475) internal successors, (297), 119 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:46,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 297 transitions. [2025-02-17 22:45:46,201 INFO L240 hiAutomatonCegarLoop]: Abstraction has 120 states and 297 transitions. [2025-02-17 22:45:46,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:46,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:45:46,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:45:46,202 INFO L87 Difference]: Start difference. First operand 120 states and 297 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:46,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:46,208 INFO L93 Difference]: Finished difference Result 93 states and 190 transitions. [2025-02-17 22:45:46,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 190 transitions. [2025-02-17 22:45:46,209 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:46,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 0 states and 0 transitions. [2025-02-17 22:45:46,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:45:46,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:45:46,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:45:46,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:46,209 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:46,209 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:46,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:45:46,210 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:46,210 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:45:46,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:45:46,210 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:46,211 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:45:46,217 INFO L201 PluginConnector]: Adding new model interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:45:46 BoogieIcfgContainer [2025-02-17 22:45:46,218 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:45:46,219 INFO L158 Benchmark]: Toolchain (without parser) took 2115.72ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 85.4MB in the beginning and 31.3MB in the end (delta: 54.0MB). Peak memory consumption was 51.6MB. Max. memory is 8.0GB. [2025-02-17 22:45:46,219 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:46,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.38ms. Allocated memory is still 159.4MB. Free memory was 85.4MB in the beginning and 84.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:46,220 INFO L158 Benchmark]: Boogie Preprocessor took 14.28ms. Allocated memory is still 159.4MB. Free memory was 84.0MB in the beginning and 83.4MB in the end (delta: 624.7kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:46,220 INFO L158 Benchmark]: RCFGBuilder took 167.40ms. Allocated memory is still 159.4MB. Free memory was 83.4MB in the beginning and 73.2MB in the end (delta: 10.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-02-17 22:45:46,221 INFO L158 Benchmark]: BuchiAutomizer took 1911.41ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 73.0MB in the beginning and 31.3MB in the end (delta: 41.7MB). Peak memory consumption was 39.0MB. Max. memory is 8.0GB. [2025-02-17 22:45:46,221 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 0.18ms. Allocated memory is still 159.4MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.38ms. Allocated memory is still 159.4MB. Free memory was 85.4MB in the beginning and 84.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 14.28ms. Allocated memory is still 159.4MB. Free memory was 84.0MB in the beginning and 83.4MB in the end (delta: 624.7kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 167.40ms. Allocated memory is still 159.4MB. Free memory was 83.4MB in the beginning and 73.2MB in the end (delta: 10.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 1911.41ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 73.0MB in the beginning and 31.3MB in the end (delta: 41.7MB). Peak memory consumption was 39.0MB. 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 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function f1 and consists of 3 locations. One deterministic module has affine ranking function f2 and consists of 3 locations. One deterministic module has affine ranking function f3 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 264 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 117 mSDsluCounter, 152 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 102 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:45:46,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-02-17 22:45:46,431 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 22:45:46,633 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...