/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/4_plus_thr/lock5.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:47:00,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:47:01,016 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:47:01,019 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:47:01,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:47:01,037 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:47:01,037 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:47:01,037 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:47:01,038 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:47:01,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:47:01,039 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:47:01,039 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:47:01,039 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:47:01,039 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:47:01,039 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:47:01,039 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:47:01,039 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:47:01,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:47:01,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:47:01,040 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:47:01,040 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:47:01,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:47:01,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:47:01,040 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:47:01,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:47:01,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:47:01,040 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:47:01,040 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:47:01,040 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:47:01,040 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:47:01,040 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:47:01,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:47:01,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:47:01,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:47:01,041 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:47:01,041 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:47:01,041 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:47:01,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:47:01,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:47:01,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:47:01,257 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:47:01,258 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:47:01,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/lock5.c.bpl [2025-02-17 22:47:01,260 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/lock5.c.bpl' [2025-02-17 22:47:01,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:47:01,276 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:47:01,277 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:47:01,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:47:01,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:47:01,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:01" (1/1) ... [2025-02-17 22:47:01,290 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:01" (1/1) ... [2025-02-17 22:47:01,295 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:47:01,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:47:01,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:47:01,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:47:01,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:47:01,303 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:01" (1/1) ... [2025-02-17 22:47:01,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:01" (1/1) ... [2025-02-17 22:47:01,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:01" (1/1) ... [2025-02-17 22:47:01,305 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:01" (1/1) ... [2025-02-17 22:47:01,308 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:01" (1/1) ... [2025-02-17 22:47:01,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:01" (1/1) ... [2025-02-17 22:47:01,311 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:01" (1/1) ... [2025-02-17 22:47:01,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:01" (1/1) ... [2025-02-17 22:47:01,313 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:01" (1/1) ... [2025-02-17 22:47:01,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:47:01,317 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:47:01,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:47:01,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:47:01,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:01" (1/1) ... [2025-02-17 22:47:01,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:01,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:01,348 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 22:47:01,350 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 22:47:01,371 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:47:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:47:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:47:01,372 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:47:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:47:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:47:01,372 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:47:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:47:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:47:01,372 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:47:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:47:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:47:01,372 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:47:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:47:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:47:01,372 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-02-17 22:47:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-17 22:47:01,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-17 22:47:01,373 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 22:47:01,411 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:47:01,413 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:47:01,515 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:47:01,515 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:47:01,532 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:47:01,532 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:47:01,533 INFO L201 PluginConnector]: Adding new model lock5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:47:01 BoogieIcfgContainer [2025-02-17 22:47:01,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:47:01,535 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:47:01,535 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:47:01,539 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:47:01,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:47:01,539 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:01" (1/2) ... [2025-02-17 22:47:01,541 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60c8b6ba and model type lock5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:47:01, skipping insertion in model container [2025-02-17 22:47:01,541 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:47:01,541 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:47:01" (2/2) ... [2025-02-17 22:47:01,542 INFO L363 chiAutomizerObserver]: Analyzing ICFG lock5.c.bpl [2025-02-17 22:47:01,603 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2025-02-17 22:47:01,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 56 transitions, 147 flow [2025-02-17 22:47:01,666 INFO L124 PetriNetUnfolderBase]: 5/46 cut-off events. [2025-02-17 22:47:01,668 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-17 22:47:01,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 46 events. 5/46 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 131 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2025-02-17 22:47:01,672 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 56 transitions, 147 flow [2025-02-17 22:47:01,675 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 46 transitions, 122 flow [2025-02-17 22:47:01,683 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:47:01,684 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:47:01,684 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:47:01,684 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:47:01,684 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:47:01,684 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:47:01,684 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:47:01,684 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:47:01,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:47:03,396 INFO L131 ngComponentsAnalysis]: Automaton has 2981 accepting balls. 20703 [2025-02-17 22:47:03,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:03,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:03,403 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:47:03,403 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:47:03,403 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:47:03,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 22409 states, but on-demand construction may add more states [2025-02-17 22:47:03,873 INFO L131 ngComponentsAnalysis]: Automaton has 2981 accepting balls. 20703 [2025-02-17 22:47:03,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:03,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:03,875 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:47:03,875 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:47:03,880 INFO L752 eck$LassoCheckResult]: Stem: "[159] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[122] $Ultimate##0-->L32: Formula: (and (= v_l_16 0) (< 0 v_l_17)) InVars {l=v_l_17} OutVars{l=v_l_16} AuxVars[] AssignedVars[l]" [2025-02-17 22:47:03,881 INFO L754 eck$LassoCheckResult]: Loop: "[124] L32-->L34: 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[]" "[126] L34-->L35: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[128] L35-->L32: Formula: (= v_x2_2 (+ v_x2_1 1)) InVars {x2=v_x2_2} OutVars{x2=v_x2_1} AuxVars[] AssignedVars[x2]" [2025-02-17 22:47:03,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:03,888 INFO L85 PathProgramCache]: Analyzing trace with hash 6012, now seen corresponding path program 1 times [2025-02-17 22:47:03,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:03,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842058444] [2025-02-17 22:47:03,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:03,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:03,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:03,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:03,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:03,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:03,950 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:03,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:03,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:03,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:03,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:03,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:03,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:03,975 INFO L85 PathProgramCache]: Analyzing trace with hash 152989, now seen corresponding path program 1 times [2025-02-17 22:47:03,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:03,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198577065] [2025-02-17 22:47:03,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:03,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:03,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:03,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:03,985 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:03,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:03,985 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:03,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:03,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:03,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:03,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:03,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:03,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:03,992 INFO L85 PathProgramCache]: Analyzing trace with hash 179226690, now seen corresponding path program 1 times [2025-02-17 22:47:03,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:03,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011251600] [2025-02-17 22:47:03,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:03,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:03,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:03,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:03,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:03,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:03,998 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:03,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:04,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:04,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:04,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:04,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:04,060 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:04,060 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:04,060 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:04,061 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:04,061 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:04,061 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:04,061 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:04,061 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:04,061 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:47:04,061 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:04,061 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:04,072 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:04,082 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:04,130 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:04,130 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:04,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:04,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:04,133 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 22:47:04,134 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 22:47:04,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:04,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:04,153 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 22:47:04,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:04,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:04,155 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 22:47:04,157 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 22:47:04,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:04,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:04,185 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:47:04,185 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x2=0} Honda state: {x2=0} Generalized eigenvectors: [{x2=-8}, {x2=3}, {x2=4}] Lambdas: [1, 1, 1] Nus: [0, 0] [2025-02-17 22:47:04,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:04,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:04,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:04,193 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 22:47:04,195 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 22:47:04,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:04,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:04,214 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 22:47:04,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:04,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:04,216 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 22:47:04,218 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 22:47:04,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:04,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:04,286 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:04,289 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 22:47:04,290 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:04,290 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:04,290 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:04,290 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:04,290 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:04,290 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:04,290 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:04,290 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:04,290 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:47:04,290 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:04,290 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:04,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:04,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:04,322 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:04,325 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:04,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:04,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:04,328 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 22:47:04,330 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 22:47:04,331 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 22:47:04,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:04,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:04,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:04,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:04,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:04,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:04,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:04,357 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:47:04,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-02-17 22:47:04,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:04,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:04,365 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 22:47:04,398 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 22:47:04,398 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 22:47:04,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:04,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:04,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:04,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:04,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:04,414 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:04,414 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:04,423 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:04,443 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:47:04,443 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:47:04,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:04,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:04,450 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 22:47:04,452 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:04,452 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:04,452 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:04,453 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, z) = -1*x1 + 1*z Supporting invariants [] [2025-02-17 22:47:04,453 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 22:47:04,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-17 22:47:04,461 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:04,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:04,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:04,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:04,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:04,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:04,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:04,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:04,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:04,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:04,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:04,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:04,549 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:04,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:04,637 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 22:47:04,662 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:47:04,665 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 22409 states, but on-demand construction may add more states Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:05,566 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 22:47:06,177 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 22409 states, but on-demand construction may add more states. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 74255 states and 397250 transitions. Complement of second has 7 states. [2025-02-17 22:47:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:06,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:06,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 142 transitions. [2025-02-17 22:47:06,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 142 transitions. Stem has 2 letters. Loop has 3 letters. [2025-02-17 22:47:06,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:06,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 142 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:47:06,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:06,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 142 transitions. Stem has 2 letters. Loop has 6 letters. [2025-02-17 22:47:06,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:06,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74255 states and 397250 transitions. [2025-02-17 22:47:07,955 INFO L131 ngComponentsAnalysis]: Automaton has 5718 accepting balls. 32190 [2025-02-17 22:47:09,131 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74255 states to 61267 states and 330920 transitions. [2025-02-17 22:47:09,132 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38823 [2025-02-17 22:47:09,350 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50388 [2025-02-17 22:47:09,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61267 states and 330920 transitions. [2025-02-17 22:47:09,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:09,351 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61267 states and 330920 transitions. [2025-02-17 22:47:09,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61267 states and 330920 transitions. [2025-02-17 22:47:11,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61267 to 41493. [2025-02-17 22:47:11,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41493 states, 41493 states have (on average 5.629792977128672) internal successors, (233597), 41492 states have internal predecessors, (233597), 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 22:47:11,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41493 states to 41493 states and 233597 transitions. [2025-02-17 22:47:11,940 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41493 states and 233597 transitions. [2025-02-17 22:47:11,940 INFO L432 stractBuchiCegarLoop]: Abstraction has 41493 states and 233597 transitions. [2025-02-17 22:47:11,940 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:47:11,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41493 states and 233597 transitions. [2025-02-17 22:47:12,337 INFO L131 ngComponentsAnalysis]: Automaton has 4194 accepting balls. 25278 [2025-02-17 22:47:12,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:12,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:12,339 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:47:12,340 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:47:12,340 INFO L752 eck$LassoCheckResult]: Stem: "[159] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[162] L12-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[129] $Ultimate##0-->L48: Formula: (and (< 0 v_l_21) (= v_l_20 0)) InVars {l=v_l_21} OutVars{l=v_l_20} AuxVars[] AssignedVars[l]" [2025-02-17 22:47:12,340 INFO L754 eck$LassoCheckResult]: Loop: "[131] L48-->L50: Formula: (< v_x2_3 v_z_3) InVars {x2=v_x2_3, z=v_z_3} OutVars{x2=v_x2_3, z=v_z_3} AuxVars[] AssignedVars[]" "[133] L50-->L51: Formula: (= (+ v_x2_5 1) v_x2_4) InVars {x2=v_x2_5} OutVars{x2=v_x2_4} AuxVars[] AssignedVars[x2]" "[135] L51-->L48: Formula: (= v_x3_2 (+ v_x3_1 1)) InVars {x3=v_x3_2} OutVars{x3=v_x3_1} AuxVars[] AssignedVars[x3]" [2025-02-17 22:47:12,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:12,341 INFO L85 PathProgramCache]: Analyzing trace with hash 187741, now seen corresponding path program 1 times [2025-02-17 22:47:12,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:12,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700870449] [2025-02-17 22:47:12,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:12,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:12,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:12,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:12,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:12,345 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:12,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:12,347 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:12,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:12,348 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:12,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:12,349 INFO L85 PathProgramCache]: Analyzing trace with hash 159940, now seen corresponding path program 1 times [2025-02-17 22:47:12,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:12,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095520354] [2025-02-17 22:47:12,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:12,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:12,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:12,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:12,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:12,355 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:12,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:12,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:12,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:12,358 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:12,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:12,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1298154984, now seen corresponding path program 1 times [2025-02-17 22:47:12,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:12,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176802782] [2025-02-17 22:47:12,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:12,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:12,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:47:12,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:47:12,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:12,364 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:12,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:47:12,369 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:47:12,369 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:12,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:12,405 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:12,405 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:12,406 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:12,406 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:12,406 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:12,406 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:12,406 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:12,406 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:12,406 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:47:12,406 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:12,406 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:12,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:12,414 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:12,443 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:12,443 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:12,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:12,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:12,447 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 22:47:12,448 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 22:47:12,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:12,448 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:12,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:12,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:12,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:12,467 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 22:47:12,471 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 22:47:12,472 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:12,472 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:12,543 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:12,547 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 22:47:12,548 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:12,548 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:12,548 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:12,548 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:12,548 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:12,548 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:12,548 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:12,548 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:12,548 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:47:12,548 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:12,548 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:12,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:12,555 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:12,582 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:12,582 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:12,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:12,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:12,585 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 22:47:12,588 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 22:47:12,588 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 22:47:12,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:12,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:12,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:12,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:12,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:12,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:12,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:12,605 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:12,608 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:47:12,608 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:47:12,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:12,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:12,613 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 22:47:12,615 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 22:47:12,616 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:12,616 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:12,616 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:12,617 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x2) = 1*z - 1*x2 Supporting invariants [] [2025-02-17 22:47:12,623 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 22:47:12,624 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:12,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:12,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:12,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:12,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:12,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:12,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:12,651 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:12,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:12,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:12,656 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:12,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:12,690 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 22:47:12,690 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:47:12,692 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41493 states and 233597 transitions. cyclomatic complexity: 197248 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:13,001 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 22:47:15,536 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41493 states and 233597 transitions. cyclomatic complexity: 197248. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 152959 states and 879521 transitions. Complement of second has 7 states. [2025-02-17 22:47:15,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:15,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:15,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2025-02-17 22:47:15,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 140 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-17 22:47:15,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:15,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 140 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-17 22:47:15,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:15,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 140 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-17 22:47:15,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:15,538 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152959 states and 879521 transitions. [2025-02-17 22:47:19,002 INFO L131 ngComponentsAnalysis]: Automaton has 8216 accepting balls. 41916 [2025-02-17 22:47:21,450 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152959 states to 127891 states and 740991 transitions. [2025-02-17 22:47:21,450 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57112 [2025-02-17 22:47:21,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73895 [2025-02-17 22:47:21,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 127891 states and 740991 transitions. [2025-02-17 22:47:21,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:21,832 INFO L218 hiAutomatonCegarLoop]: Abstraction has 127891 states and 740991 transitions. [2025-02-17 22:47:22,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127891 states and 740991 transitions. [2025-02-17 22:47:25,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127891 to 91034. [2025-02-17 22:47:25,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91034 states, 91034 states have (on average 6.086528110376343) internal successors, (554081), 91033 states have internal predecessors, (554081), 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 22:47:26,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91034 states to 91034 states and 554081 transitions. [2025-02-17 22:47:26,811 INFO L240 hiAutomatonCegarLoop]: Abstraction has 91034 states and 554081 transitions. [2025-02-17 22:47:26,812 INFO L432 stractBuchiCegarLoop]: Abstraction has 91034 states and 554081 transitions. [2025-02-17 22:47:26,812 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:47:26,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91034 states and 554081 transitions. [2025-02-17 22:47:27,748 INFO L131 ngComponentsAnalysis]: Automaton has 6198 accepting balls. 33312 [2025-02-17 22:47:27,748 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:27,748 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:27,752 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:47:27,752 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:47:27,752 INFO L752 eck$LassoCheckResult]: Stem: "[159] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[162] L12-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[165] L13-->$Ultimate##0: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[136] $Ultimate##0-->L64: Formula: (and (= v_l_24 0) (< 0 v_l_25)) InVars {l=v_l_25} OutVars{l=v_l_24} AuxVars[] AssignedVars[l]" [2025-02-17 22:47:27,752 INFO L754 eck$LassoCheckResult]: Loop: "[138] L64-->L66: Formula: (< v_x3_4 v_z_6) InVars {x3=v_x3_4, z=v_z_6} OutVars{x3=v_x3_4, z=v_z_6} AuxVars[] AssignedVars[]" "[140] L66-->L67: Formula: (= (+ v_x3_6 1) v_x3_5) InVars {x3=v_x3_6} OutVars{x3=v_x3_5} AuxVars[] AssignedVars[x3]" "[142] L67-->L64: Formula: (= v_x4_2 (+ v_x4_1 1)) InVars {x4=v_x4_2} OutVars{x4=v_x4_1} AuxVars[] AssignedVars[x4]" [2025-02-17 22:47:27,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:27,753 INFO L85 PathProgramCache]: Analyzing trace with hash 5821223, now seen corresponding path program 1 times [2025-02-17 22:47:27,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:27,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126470502] [2025-02-17 22:47:27,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:27,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:27,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:27,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:27,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:27,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:27,757 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:27,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:27,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:27,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:27,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:27,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:27,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:27,761 INFO L85 PathProgramCache]: Analyzing trace with hash 166891, now seen corresponding path program 1 times [2025-02-17 22:47:27,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:27,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29377017] [2025-02-17 22:47:27,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:27,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:27,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:27,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:27,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:27,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:27,765 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:27,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:27,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:27,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:27,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:27,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:27,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:27,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1621499653, now seen corresponding path program 1 times [2025-02-17 22:47:27,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:27,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573182691] [2025-02-17 22:47:27,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:27,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:27,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:47:27,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:47:27,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:27,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:27,774 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:27,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:47:27,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:47:27,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:27,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:27,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:27,800 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:27,800 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:27,800 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:27,800 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:27,800 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:27,800 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:27,800 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:27,800 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:27,800 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:47:27,800 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:27,800 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:27,801 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:27,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:27,831 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:27,831 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:27,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:27,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:27,834 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 22:47:27,836 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 22:47:27,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:27,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:27,857 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 22:47:27,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:27,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:27,860 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 22:47:27,861 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 22:47:27,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:27,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:27,887 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:47:27,887 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x4=0} Honda state: {x4=0} Generalized eigenvectors: [{x4=-5}, {x4=-3}, {x4=7}] Lambdas: [1, 1, 1] Nus: [0, 0] [2025-02-17 22:47:27,893 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 22:47:27,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:27,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:27,895 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 22:47:28,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:28,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:28,074 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 22:47:28,093 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 22:47:28,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:28,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:28,095 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 22:47:28,096 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 22:47:28,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:28,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:28,163 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:28,167 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 22:47:28,167 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:28,167 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:28,167 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:28,167 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:28,167 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:28,167 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:28,167 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:28,167 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:28,167 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:47:28,167 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:28,167 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:28,168 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:28,171 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:28,199 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:28,199 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:28,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:28,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:28,202 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:28,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-17 22:47:28,204 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 22:47:28,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:28,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:28,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:28,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:28,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:28,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:28,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:28,219 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:47:28,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:28,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:28,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:28,228 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:28,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-02-17 22:47:28,230 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 22:47:28,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:28,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:28,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:28,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:28,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:28,240 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:28,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:28,242 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:28,244 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:47:28,244 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:47:28,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:28,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:28,246 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:28,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-02-17 22:47:28,249 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:28,249 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:28,249 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:28,249 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x3) = 1*z - 1*x3 Supporting invariants [] [2025-02-17 22:47:28,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-02-17 22:47:28,255 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:28,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:28,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:28,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:28,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:28,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:28,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:28,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:28,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:28,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:28,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:28,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:28,283 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:28,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:28,313 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 22:47:28,314 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:47:28,314 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 91034 states and 554081 transitions. cyclomatic complexity: 473387 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 22:47:29,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:33,989 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 91034 states and 554081 transitions. cyclomatic complexity: 473387. 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 349185 states and 2127849 transitions. Complement of second has 7 states. [2025-02-17 22:47:33,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:33,990 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 22:47:33,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2025-02-17 22:47:33,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 140 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-17 22:47:33,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:33,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 140 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-17 22:47:33,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:33,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 140 transitions. Stem has 4 letters. Loop has 6 letters. [2025-02-17 22:47:33,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:33,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 349185 states and 2127849 transitions. [2025-02-17 22:47:43,483 INFO L131 ngComponentsAnalysis]: Automaton has 11163 accepting balls. 51903 [2025-02-17 22:47:49,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 349185 states to 282181 states and 1730495 transitions. [2025-02-17 22:47:49,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 89809 [2025-02-17 22:47:49,557 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 113014 [2025-02-17 22:47:49,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 282181 states and 1730495 transitions. [2025-02-17 22:47:49,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:49,558 INFO L218 hiAutomatonCegarLoop]: Abstraction has 282181 states and 1730495 transitions. [2025-02-17 22:47:49,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282181 states and 1730495 transitions. [2025-02-17 22:47:56,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282181 to 208346. [2025-02-17 22:47:57,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208346 states, 208346 states have (on average 6.386126923483053) internal successors, (1330524), 208345 states have internal predecessors, (1330524), 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 22:47:59,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208346 states to 208346 states and 1330524 transitions. [2025-02-17 22:47:59,231 INFO L240 hiAutomatonCegarLoop]: Abstraction has 208346 states and 1330524 transitions. [2025-02-17 22:47:59,231 INFO L432 stractBuchiCegarLoop]: Abstraction has 208346 states and 1330524 transitions. [2025-02-17 22:47:59,231 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:47:59,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 208346 states and 1330524 transitions. [2025-02-17 22:48:01,859 INFO L131 ngComponentsAnalysis]: Automaton has 8669 accepting balls. 42291 [2025-02-17 22:48:01,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:48:01,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:48:01,865 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:48:01,865 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:48:01,866 INFO L752 eck$LassoCheckResult]: Stem: "[159] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[162] L12-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[165] L13-->$Ultimate##0: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[168] L14-->$Ultimate##0: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2]" "[143] $Ultimate##0-->L80: Formula: (and (< 0 v_l_29) (= v_l_28 0)) InVars {l=v_l_29} OutVars{l=v_l_28} AuxVars[] AssignedVars[l]" [2025-02-17 22:48:01,866 INFO L754 eck$LassoCheckResult]: Loop: "[145] L80-->L82: Formula: (< v_x4_3 v_z_7) InVars {x4=v_x4_3, z=v_z_7} OutVars{x4=v_x4_3, z=v_z_7} AuxVars[] AssignedVars[]" "[147] L82-->L83: Formula: (= v_x4_4 (+ v_x4_5 1)) InVars {x4=v_x4_5} OutVars{x4=v_x4_4} AuxVars[] AssignedVars[x4]" "[149] L83-->L80: Formula: (= v_x5_2 (+ v_x5_1 1)) InVars {x5=v_x5_2} OutVars{x5=v_x5_1} AuxVars[] AssignedVars[x5]" [2025-02-17 22:48:01,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:01,866 INFO L85 PathProgramCache]: Analyzing trace with hash 180459048, now seen corresponding path program 1 times [2025-02-17 22:48:01,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:48:01,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200697384] [2025-02-17 22:48:01,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:48:01,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:48:01,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:48:01,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:48:01,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:01,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:01,871 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:48:01,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:48:01,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:48:01,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:01,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:01,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:48:01,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:01,874 INFO L85 PathProgramCache]: Analyzing trace with hash 173842, now seen corresponding path program 1 times [2025-02-17 22:48:01,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:48:01,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868129766] [2025-02-17 22:48:01,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:48:01,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:48:01,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:48:01,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:48:01,881 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:01,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:01,881 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:48:01,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:48:01,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:48:01,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:01,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:01,886 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:48:01,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:01,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1243411573, now seen corresponding path program 1 times [2025-02-17 22:48:01,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:48:01,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431123254] [2025-02-17 22:48:01,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:48:01,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:48:01,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:48:01,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:48:01,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:01,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:01,893 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:48:01,894 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:48:01,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:48:01,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:01,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:01,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:48:01,923 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:48:01,923 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:48:01,923 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:48:01,923 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:48:01,923 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:48:01,923 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:01,923 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:48:01,923 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:48:01,923 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:48:01,923 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:48:01,923 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:48:01,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:01,926 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:01,945 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:48:01,945 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:48:01,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:01,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:01,947 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:48:01,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-02-17 22:48:01,951 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:48:01,951 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:48:01,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-02-17 22:48:01,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:01,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:01,969 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:48:01,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-02-17 22:48:01,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:48:01,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:48:01,996 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:48:01,997 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x5=0} Honda state: {x5=0} Generalized eigenvectors: [{x5=6}, {x5=-6}, {x5=-1}] Lambdas: [1, 1, 1] Nus: [0, 0] [2025-02-17 22:48:02,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-02-17 22:48:02,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:02,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:02,004 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:48:02,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-02-17 22:48:02,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:48:02,005 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:48:02,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-02-17 22:48:02,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:02,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:02,023 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:48:02,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-02-17 22:48:02,025 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:48:02,025 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:48:02,089 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:48:02,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-02-17 22:48:02,095 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:48:02,095 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:48:02,095 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:48:02,095 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:48:02,095 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:48:02,095 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:02,095 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:48:02,095 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:48:02,095 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:48:02,095 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:48:02,095 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:48:02,096 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:02,100 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:02,126 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:48:02,126 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:48:02,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:02,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:02,129 INFO L229 MonitoredProcess]: Starting monitored process 24 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 22:48:02,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-02-17 22:48:02,130 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 22:48:02,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:48:02,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:48:02,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:48:02,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:48:02,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:48:02,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:48:02,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:48:02,143 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:48:02,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-02-17 22:48:02,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:02,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:02,150 INFO L229 MonitoredProcess]: Starting monitored process 25 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 22:48:02,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-02-17 22:48:02,152 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 22:48:02,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:48:02,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:48:02,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:48:02,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:48:02,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:48:02,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:48:02,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:48:02,164 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:48:02,165 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:48:02,165 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:48:02,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:02,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:02,167 INFO L229 MonitoredProcess]: Starting monitored process 26 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 22:48:02,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-02-17 22:48:02,169 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:48:02,169 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:48:02,169 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:48:02,169 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x4, z) = -1*x4 + 1*z Supporting invariants [] [2025-02-17 22:48:02,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-02-17 22:48:02,176 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:48:02,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:02,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:48:02,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:48:02,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:02,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:48:02,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:48:02,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:48:02,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:48:02,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:48:02,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:02,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:48:02,208 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:48:02,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:48:02,230 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 22:48:02,231 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:48:02,231 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 208346 states and 1330524 transitions. cyclomatic complexity: 1143814 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:48:02,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0