/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/3_thr/lock3.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:45:47,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:45:47,947 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:45:47,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:45:47,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:45:47,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:45:47,971 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:45:47,971 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:45:47,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:45:47,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:45:47,972 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:45:47,972 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:45:47,973 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:45:47,973 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:45:47,974 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:45:47,974 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:45:47,974 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:45:47,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:45:47,974 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:45:47,974 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:45:47,974 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:45:47,974 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:45:48,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:45:48,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:45:48,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:45:48,232 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:45:48,232 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:45:48,233 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/3_thr/lock3.c.bpl [2025-02-17 22:45:48,233 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/3_thr/lock3.c.bpl' [2025-02-17 22:45:48,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:45:48,248 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:45:48,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:48,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:45:48,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:45:48,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "lock3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "lock3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,265 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:45:48,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:48,268 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:45:48,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:45:48,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:45:48,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lock3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lock3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,273 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lock3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lock3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,275 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "lock3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,276 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lock3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,279 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lock3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "lock3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lock3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,280 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:45:48,281 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:45:48,281 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:45:48,281 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:45:48,283 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lock3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:48,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:48,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:48,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:45:48,333 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:45:48,333 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:45:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:45:48,334 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:45:48,334 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:45:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:45:48,334 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:45:48,334 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:45:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:45:48,334 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:45:48,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:45:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:45:48,335 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:45:48,370 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:45:48,372 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:45:48,459 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:45:48,459 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:45:48,471 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:45:48,472 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:45:48,472 INFO L201 PluginConnector]: Adding new model lock3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:48 BoogieIcfgContainer [2025-02-17 22:45:48,472 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:45:48,475 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:45:48,475 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:45:48,478 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:45:48,479 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:48,479 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "lock3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/2) ... [2025-02-17 22:45:48,480 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5db0ec42 and model type lock3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:45:48, skipping insertion in model container [2025-02-17 22:45:48,480 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:48,480 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "lock3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:48" (2/2) ... [2025-02-17 22:45:48,481 INFO L363 chiAutomizerObserver]: Analyzing ICFG lock3.c.bpl [2025-02-17 22:45:48,545 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-17 22:45:48,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 89 flow [2025-02-17 22:45:48,606 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2025-02-17 22:45:48,610 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-17 22:45:48,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 28 events. 3/28 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2025-02-17 22:45:48,614 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 34 transitions, 89 flow [2025-02-17 22:45:48,617 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 74 flow [2025-02-17 22:45:48,628 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:45:48,628 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:45:48,628 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:45:48,629 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:45:48,629 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:45:48,629 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:45:48,629 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:45:48,629 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:45:48,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:45:48,732 INFO L131 ngComponentsAnalysis]: Automaton has 81 accepting balls. 351 [2025-02-17 22:45:48,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:48,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:48,735 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:48,735 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:48,735 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:45:48,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 457 states, but on-demand construction may add more states [2025-02-17 22:45:48,748 INFO L131 ngComponentsAnalysis]: Automaton has 81 accepting balls. 351 [2025-02-17 22:45:48,748 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:48,748 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:48,748 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:48,749 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:48,755 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[74] $Ultimate##0-->L26: Formula: (and (= v_l_10 0) (< 0 v_l_11)) InVars {l=v_l_11} OutVars{l=v_l_10} AuxVars[] AssignedVars[l]" [2025-02-17 22:45:48,756 INFO L754 eck$LassoCheckResult]: Loop: "[76] L26-->L28: 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[]" "[78] L28-->L29: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[80] L29-->L26: Formula: (= v_x2_2 (+ v_x2_1 1)) InVars {x2=v_x2_2} OutVars{x2=v_x2_1} AuxVars[] AssignedVars[x2]" [2025-02-17 22:45:48,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:48,761 INFO L85 PathProgramCache]: Analyzing trace with hash 4042, now seen corresponding path program 1 times [2025-02-17 22:45:48,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:48,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599078811] [2025-02-17 22:45:48,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:48,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:48,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:48,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:48,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:48,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:48,814 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:48,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:48,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:48,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:48,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:48,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:48,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:48,831 INFO L85 PathProgramCache]: Analyzing trace with hash 105325, now seen corresponding path program 1 times [2025-02-17 22:45:48,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:48,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665478753] [2025-02-17 22:45:48,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:48,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:48,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:48,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:48,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:48,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:48,840 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:48,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:48,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:48,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:48,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:48,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:48,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:48,850 INFO L85 PathProgramCache]: Analyzing trace with hash 120490756, now seen corresponding path program 1 times [2025-02-17 22:45:48,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:48,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779179525] [2025-02-17 22:45:48,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:48,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:48,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:48,862 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:48,862 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:48,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:48,862 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:48,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:48,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:48,866 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:48,866 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:48,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:48,935 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:48,936 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:48,936 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:48,936 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:48,936 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:48,936 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:48,936 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:48,936 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:48,936 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock3.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:48,936 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:48,937 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:48,947 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:48,966 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,008 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:49,009 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:49,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,013 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:49,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:45:49,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:49,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:49,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:49,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,040 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:49,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-17 22:45:49,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:49,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:49,115 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:49,120 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 22:45:49,120 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:49,120 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:49,120 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:49,121 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:49,121 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:49,121 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,121 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:49,121 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:49,121 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock3.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:49,121 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:49,121 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:49,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,134 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,167 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:49,170 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:49,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,174 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:49,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:49,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-17 22:45:49,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:49,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:49,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:49,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:49,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:49,223 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:49,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:49,225 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:49,235 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:49,235 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:49,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,239 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:49,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-17 22:45:49,241 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:49,242 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:49,242 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:49,242 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, z) = -1*x1 + 1*z Supporting invariants [] [2025-02-17 22:45:49,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-02-17 22:45:49,251 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:49,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:49,278 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:49,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:49,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:49,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:49,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:49,294 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:49,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:49,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:49,297 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:49,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:49,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:49,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:49,391 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 22:45:49,394 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 457 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 22:45:49,585 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 457 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 1511 states and 4837 transitions. Complement of second has 7 states. [2025-02-17 22:45:49,586 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 22:45:49,590 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 22:45:49,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2025-02-17 22:45:49,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 2 letters. Loop has 3 letters. [2025-02-17 22:45:49,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:49,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:45:49,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:49,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 2 letters. Loop has 6 letters. [2025-02-17 22:45:49,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:49,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1511 states and 4837 transitions. [2025-02-17 22:45:49,614 INFO L131 ngComponentsAnalysis]: Automaton has 118 accepting balls. 450 [2025-02-17 22:45:49,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1511 states to 1083 states and 3499 transitions. [2025-02-17 22:45:49,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 687 [2025-02-17 22:45:49,633 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 892 [2025-02-17 22:45:49,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1083 states and 3499 transitions. [2025-02-17 22:45:49,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:49,634 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1083 states and 3499 transitions. [2025-02-17 22:45:49,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states and 3499 transitions. [2025-02-17 22:45:49,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 745. [2025-02-17 22:45:49,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 745 states have (on average 3.3597315436241613) internal successors, (2503), 744 states have internal predecessors, (2503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:49,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 2503 transitions. [2025-02-17 22:45:49,693 INFO L240 hiAutomatonCegarLoop]: Abstraction has 745 states and 2503 transitions. [2025-02-17 22:45:49,693 INFO L432 stractBuchiCegarLoop]: Abstraction has 745 states and 2503 transitions. [2025-02-17 22:45:49,693 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:45:49,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 745 states and 2503 transitions. [2025-02-17 22:45:49,698 INFO L131 ngComponentsAnalysis]: Automaton has 94 accepting balls. 378 [2025-02-17 22:45:49,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:49,698 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:49,698 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:49,698 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:49,699 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[100] L10-->$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]" "[81] $Ultimate##0-->L42: Formula: (and (= v_l_14 0) (< 0 v_l_15)) InVars {l=v_l_15} OutVars{l=v_l_14} AuxVars[] AssignedVars[l]" [2025-02-17 22:45:49,699 INFO L754 eck$LassoCheckResult]: Loop: "[83] L42-->L44: 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[]" "[85] L44-->L45: Formula: (= (+ v_x2_5 1) v_x2_4) InVars {x2=v_x2_5} OutVars{x2=v_x2_4} AuxVars[] AssignedVars[x2]" "[87] L45-->L42: Formula: (= v_x3_2 (+ v_x3_1 1)) InVars {x3=v_x3_2} OutVars{x3=v_x3_1} AuxVars[] AssignedVars[x3]" [2025-02-17 22:45:49,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:49,699 INFO L85 PathProgramCache]: Analyzing trace with hash 126189, now seen corresponding path program 1 times [2025-02-17 22:45:49,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:49,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752131369] [2025-02-17 22:45:49,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:49,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:49,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:49,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:49,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:49,703 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:49,703 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:49,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:49,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:49,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:49,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:49,707 INFO L85 PathProgramCache]: Analyzing trace with hash 112276, now seen corresponding path program 1 times [2025-02-17 22:45:49,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:49,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816129566] [2025-02-17 22:45:49,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:49,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:49,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:49,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:49,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:49,712 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:49,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:49,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:49,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:49,716 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:49,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:49,716 INFO L85 PathProgramCache]: Analyzing trace with hash -535588312, now seen corresponding path program 1 times [2025-02-17 22:45:49,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:49,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729002285] [2025-02-17 22:45:49,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:49,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:49,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:49,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:49,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:49,721 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:49,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:49,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:49,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:49,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:49,750 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:49,750 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:49,750 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:49,750 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:49,750 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:49,750 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,750 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:49,750 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:49,750 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock3.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:49,750 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:49,750 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:49,751 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,782 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:49,782 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:49,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,785 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:49,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-17 22:45:49,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:49,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:49,803 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 22:45:49,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,806 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:49,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-17 22:45:49,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:49,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:49,831 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:49,831 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x3=0} Honda state: {x3=0} Generalized eigenvectors: [{x3=-1}, {x3=1}, {x3=-1}] Lambdas: [2, 2, 1] Nus: [1, 1] [2025-02-17 22:45:49,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:49,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,838 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:49,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-17 22:45:49,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:49,840 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:49,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-17 22:45:49,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,858 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:49,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-17 22:45:49,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:49,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:49,924 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:49,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-02-17 22:45:49,928 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:49,928 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:49,928 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:49,928 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:49,928 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:49,928 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,928 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:49,928 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:49,928 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock3.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:49,928 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:49,928 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:49,929 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,963 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:49,963 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:49,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,965 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:49,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-17 22:45:49,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:49,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:49,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:49,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:49,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:49,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:49,978 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:49,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:49,980 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:49,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:49,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,988 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:49,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-17 22:45:49,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:49,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:49,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:50,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:50,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:50,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:50,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:50,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:50,004 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:50,008 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:50,008 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:50,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:50,010 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:50,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-17 22:45:50,013 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:50,013 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:50,013 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:50,013 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, z) = -1*x2 + 1*z Supporting invariants [] [2025-02-17 22:45:50,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-02-17 22:45:50,021 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:50,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:50,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:50,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:50,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,043 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:50,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:50,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:50,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:50,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:50,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:50,050 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:50,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:50,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:50,075 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 22:45:50,076 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 745 states and 2503 transitions. cyclomatic complexity: 1884 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 22:45:50,174 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 745 states and 2503 transitions. cyclomatic complexity: 1884. 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 2723 states and 9239 transitions. Complement of second has 7 states. [2025-02-17 22:45:50,175 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 22:45:50,175 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 22:45:50,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 74 transitions. [2025-02-17 22:45:50,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 74 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-17 22:45:50,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:50,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 74 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-17 22:45:50,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:50,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 74 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-17 22:45:50,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:50,176 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2723 states and 9239 transitions. [2025-02-17 22:45:50,202 INFO L131 ngComponentsAnalysis]: Automaton has 134 accepting balls. 492 [2025-02-17 22:45:50,254 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2723 states to 2179 states and 7377 transitions. [2025-02-17 22:45:50,254 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 952 [2025-02-17 22:45:50,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-02-17 22:45:50,258 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1223 [2025-02-17 22:45:50,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2179 states and 7377 transitions. [2025-02-17 22:45:50,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:50,258 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2179 states and 7377 transitions. [2025-02-17 22:45:50,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states and 7377 transitions. [2025-02-17 22:45:50,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 1582. [2025-02-17 22:45:50,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1582 states have (on average 3.5417193426042983) internal successors, (5603), 1581 states have internal predecessors, (5603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:50,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 5603 transitions. [2025-02-17 22:45:50,314 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1582 states and 5603 transitions. [2025-02-17 22:45:50,314 INFO L432 stractBuchiCegarLoop]: Abstraction has 1582 states and 5603 transitions. [2025-02-17 22:45:50,314 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:45:50,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1582 states and 5603 transitions. [2025-02-17 22:45:50,323 INFO L131 ngComponentsAnalysis]: Automaton has 112 accepting balls. 426 [2025-02-17 22:45:50,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:50,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:50,323 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:45:50,323 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:50,324 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[100] L10-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[103] L11-->$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]" "[88] $Ultimate##0-->L58: Formula: (and (< 0 v_l_19) (= v_l_18 0)) InVars {l=v_l_19} OutVars{l=v_l_18} AuxVars[] AssignedVars[l]" [2025-02-17 22:45:50,324 INFO L754 eck$LassoCheckResult]: Loop: "[90] L58-->L60: 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[]" "[92] L60-->L61: Formula: (= (+ v_x3_6 1) v_x3_5) InVars {x3=v_x3_6} OutVars{x3=v_x3_5} AuxVars[] AssignedVars[x3]" "[94] L61-->L58: Formula: (= v_x1_6 (+ v_x1_5 1)) InVars {x1=v_x1_6} OutVars{x1=v_x1_5} AuxVars[] AssignedVars[x1]" [2025-02-17 22:45:50,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:50,325 INFO L85 PathProgramCache]: Analyzing trace with hash 3912629, now seen corresponding path program 1 times [2025-02-17 22:45:50,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:50,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570707206] [2025-02-17 22:45:50,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:50,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:50,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:50,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:50,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:50,328 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:50,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:50,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:50,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:50,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:50,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:50,338 INFO L85 PathProgramCache]: Analyzing trace with hash 119227, now seen corresponding path program 1 times [2025-02-17 22:45:50,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:50,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225917584] [2025-02-17 22:45:50,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:50,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:50,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:50,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:50,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:50,341 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:50,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:50,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:50,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:50,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:50,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:50,344 INFO L85 PathProgramCache]: Analyzing trace with hash 597102983, now seen corresponding path program 1 times [2025-02-17 22:45:50,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:50,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973420693] [2025-02-17 22:45:50,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:50,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:50,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:50,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:50,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:50,352 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:50,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:50,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:50,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:50,355 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:50,373 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:50,373 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:50,374 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:50,374 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:50,374 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:50,374 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,374 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:50,374 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:50,374 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock3.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:50,374 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:50,374 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:50,374 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:50,380 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:50,406 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:50,406 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:50,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:50,408 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:50,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-17 22:45:50,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:50,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:50,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:50,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:50,428 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:50,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-17 22:45:50,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:50,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:50,495 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:50,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-02-17 22:45:50,499 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:50,499 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:50,499 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:50,499 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:50,499 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:50,499 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,499 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:50,499 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:50,499 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock3.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:50,500 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:50,500 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:50,500 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:50,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:50,527 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:50,527 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:50,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:50,530 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:50,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-17 22:45:50,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:50,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:50,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:50,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:50,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:50,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:50,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:50,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:50,546 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:50,552 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:50,552 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:50,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:50,554 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:50,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-17 22:45:50,557 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:50,557 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:50,557 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:50,557 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x3) = 1*z - 1*x3 Supporting invariants [] [2025-02-17 22:45:50,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:50,563 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:50,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:50,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:50,586 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:50,586 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:50,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:50,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:50,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:50,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:50,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:50,595 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:50,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:50,620 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 22:45:50,620 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1582 states and 5603 transitions. cyclomatic complexity: 4252 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:50,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:50,747 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1582 states and 5603 transitions. cyclomatic complexity: 4252. 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 5361 states and 18266 transitions. Complement of second has 7 states. [2025-02-17 22:45:50,748 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 22:45:50,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:50,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 74 transitions. [2025-02-17 22:45:50,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 74 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-17 22:45:50,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:50,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 74 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-17 22:45:50,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:50,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 74 transitions. Stem has 4 letters. Loop has 6 letters. [2025-02-17 22:45:50,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:50,749 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5361 states and 18266 transitions. [2025-02-17 22:45:50,799 INFO L131 ngComponentsAnalysis]: Automaton has 145 accepting balls. 519 [2025-02-17 22:45:50,833 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5361 states to 4261 states and 14475 transitions. [2025-02-17 22:45:50,833 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1314 [2025-02-17 22:45:50,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1564 [2025-02-17 22:45:50,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4261 states and 14475 transitions. [2025-02-17 22:45:50,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:50,837 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4261 states and 14475 transitions. [2025-02-17 22:45:50,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4261 states and 14475 transitions. [2025-02-17 22:45:50,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4261 to 3337. [2025-02-17 22:45:50,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3337 states, 3337 states have (on average 3.51842972729997) internal successors, (11741), 3336 states have internal predecessors, (11741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:50,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3337 states to 3337 states and 11741 transitions. [2025-02-17 22:45:50,921 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3337 states and 11741 transitions. [2025-02-17 22:45:50,921 INFO L432 stractBuchiCegarLoop]: Abstraction has 3337 states and 11741 transitions. [2025-02-17 22:45:50,921 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:45:50,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3337 states and 11741 transitions. [2025-02-17 22:45:50,950 INFO L131 ngComponentsAnalysis]: Automaton has 127 accepting balls. 465 [2025-02-17 22:45:50,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:50,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:50,951 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-17 22:45:50,951 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:50,951 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[100] L10-->$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]" "[81] $Ultimate##0-->L42: Formula: (and (= v_l_14 0) (< 0 v_l_15)) InVars {l=v_l_15} OutVars{l=v_l_14} AuxVars[] AssignedVars[l]" "[74] $Ultimate##0-->L26: Formula: (and (= v_l_10 0) (< 0 v_l_11)) InVars {l=v_l_11} OutVars{l=v_l_10} AuxVars[] AssignedVars[l]" "[76] L26-->L28: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[78] L28-->L29: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[80] L29-->L26: Formula: (= v_x2_2 (+ v_x2_1 1)) InVars {x2=v_x2_2} OutVars{x2=v_x2_1} AuxVars[] AssignedVars[x2]" [2025-02-17 22:45:50,951 INFO L754 eck$LassoCheckResult]: Loop: "[83] L42-->L44: 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[]" "[85] L44-->L45: Formula: (= (+ v_x2_5 1) v_x2_4) InVars {x2=v_x2_5} OutVars{x2=v_x2_4} AuxVars[] AssignedVars[x2]" "[87] L45-->L42: Formula: (= v_x3_2 (+ v_x3_1 1)) InVars {x3=v_x3_2} OutVars{x3=v_x3_1} AuxVars[] AssignedVars[x3]" [2025-02-17 22:45:50,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:50,952 INFO L85 PathProgramCache]: Analyzing trace with hash 576354545, now seen corresponding path program 1 times [2025-02-17 22:45:50,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:50,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027275552] [2025-02-17 22:45:50,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:50,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:50,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:50,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:50,957 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:50,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:50,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:50,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027275552] [2025-02-17 22:45:50,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027275552] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:50,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:50,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-17 22:45:50,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374027988] [2025-02-17 22:45:50,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:51,000 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-17 22:45:51,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:51,000 INFO L85 PathProgramCache]: Analyzing trace with hash 112276, now seen corresponding path program 2 times [2025-02-17 22:45:51,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:51,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778945512] [2025-02-17 22:45:51,000 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-17 22:45:51,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:51,002 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:51,003 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:51,003 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-17 22:45:51,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:51,004 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:51,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:51,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:51,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:51,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:51,005 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:51,027 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:51,027 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:51,027 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:51,027 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:51,027 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:51,027 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,027 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:51,027 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:51,027 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock3.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:45:51,027 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:51,027 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:51,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:51,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:51,063 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:51,063 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:51,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:51,065 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 22:45:51,067 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 22:45:51,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:51,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:51,082 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 22:45:51,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:51,084 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 22:45:51,085 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 22:45:51,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:51,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:51,108 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:51,109 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x3=0} Honda state: {x3=0} Generalized eigenvectors: [{x3=-1}, {x3=1}, {x3=-1}] Lambdas: [2, 2, 1] Nus: [1, 1] [2025-02-17 22:45:51,115 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 22:45:51,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:51,117 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 22:45:51,118 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 22:45:51,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:51,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:51,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-02-17 22:45:51,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:51,135 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 22:45:51,135 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 22:45:51,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:51,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:51,199 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:51,202 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-02-17 22:45:51,203 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:51,203 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:51,203 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:51,203 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:51,203 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:51,203 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,203 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:51,203 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:51,203 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock3.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:45:51,203 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:51,203 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:51,204 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:51,206 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:51,226 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:51,226 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:51,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:51,228 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 22:45:51,229 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 22:45:51,230 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 22:45:51,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:51,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:51,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:51,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:51,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:51,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:51,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:51,242 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:51,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-02-17 22:45:51,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:51,250 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 22:45:51,251 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 22:45:51,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:51,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:51,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:51,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:51,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:51,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:51,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:51,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:51,267 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:51,268 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:51,268 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:51,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:51,271 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 22:45:51,272 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 22:45:51,274 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:51,274 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:51,274 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:51,274 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, z) = -1*x2 + 1*z Supporting invariants [] [2025-02-17 22:45:51,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:51,280 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:51,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:51,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:51,301 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:51,301 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:51,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:51,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:51,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:51,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:51,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:51,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:51,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:51,313 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:51,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:51,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:51,339 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 22:45:51,339 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 3337 states and 11741 transitions. cyclomatic complexity: 8787 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:51,475 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 22:45:51,497 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 3337 states and 11741 transitions. cyclomatic complexity: 8787. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 13676 states and 47098 transitions. Complement of second has 7 states. [2025-02-17 22:45:51,497 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 22:45:51,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:51,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2025-02-17 22:45:51,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-17 22:45:51,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:51,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 10 letters. Loop has 3 letters. [2025-02-17 22:45:51,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:51,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 7 letters. Loop has 6 letters. [2025-02-17 22:45:51,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:51,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13676 states and 47098 transitions. [2025-02-17 22:45:51,614 INFO L131 ngComponentsAnalysis]: Automaton has 241 accepting balls. 807 [2025-02-17 22:45:51,697 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13676 states to 11083 states and 37252 transitions. [2025-02-17 22:45:51,697 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2898 [2025-02-17 22:45:51,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3366 [2025-02-17 22:45:51,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11083 states and 37252 transitions. [2025-02-17 22:45:51,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:51,705 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11083 states and 37252 transitions. [2025-02-17 22:45:51,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11083 states and 37252 transitions. [2025-02-17 22:45:51,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11083 to 5939. [2025-02-17 22:45:51,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5939 states, 5939 states have (on average 3.549755851153393) internal successors, (21082), 5938 states have internal predecessors, (21082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:51,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5939 states to 5939 states and 21082 transitions. [2025-02-17 22:45:51,952 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5939 states and 21082 transitions. [2025-02-17 22:45:51,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:51,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:45:51,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:45:51,955 INFO L87 Difference]: Start difference. First operand 5939 states and 21082 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:51,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:51,975 INFO L93 Difference]: Finished difference Result 325 states and 630 transitions. [2025-02-17 22:45:51,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 325 states and 630 transitions. [2025-02-17 22:45:51,976 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:51,976 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 325 states to 0 states and 0 transitions. [2025-02-17 22:45:51,976 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:45:51,976 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:45:51,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:45:51,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:51,976 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:51,976 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:51,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:45:51,978 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:51,978 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:45:51,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:45:51,978 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:51,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:45:51,983 INFO L201 PluginConnector]: Adding new model lock3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:45:51 BoogieIcfgContainer [2025-02-17 22:45:51,983 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:45:51,984 INFO L158 Benchmark]: Toolchain (without parser) took 3736.05ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 87.0MB in the beginning and 92.7MB in the end (delta: -5.7MB). Peak memory consumption was 45.6MB. Max. memory is 8.0GB. [2025-02-17 22:45:51,984 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:51,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.09ms. Allocated memory is still 159.4MB. Free memory was 87.0MB in the beginning and 85.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:51,984 INFO L158 Benchmark]: Boogie Preprocessor took 12.32ms. Allocated memory is still 159.4MB. Free memory was 85.6MB in the beginning and 84.9MB in the end (delta: 695.6kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:51,984 INFO L158 Benchmark]: RCFGBuilder took 191.13ms. Allocated memory is still 159.4MB. Free memory was 84.9MB in the beginning and 75.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-02-17 22:45:51,984 INFO L158 Benchmark]: BuchiAutomizer took 3508.55ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 75.4MB in the beginning and 92.7MB in the end (delta: -17.3MB). Peak memory consumption was 37.2MB. Max. memory is 8.0GB. [2025-02-17 22:45:51,985 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.09ms. Allocated memory is still 159.4MB. Free memory was 87.0MB in the beginning and 85.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 12.32ms. Allocated memory is still 159.4MB. Free memory was 85.6MB in the beginning and 84.9MB in the end (delta: 695.6kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 191.13ms. Allocated memory is still 159.4MB. Free memory was 84.9MB in the beginning and 75.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 3508.55ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 75.4MB in the beginning and 92.7MB in the end (delta: -17.3MB). Peak memory consumption was 37.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + z and consists of 4 locations. One deterministic module has affine ranking function z + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function -1 * x3 + z and consists of 4 locations. One deterministic module has affine ranking function z + -1 * x2 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 7003 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.3s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 244 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 257 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 113 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 279 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 144 mSDtfsCounter, 279 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp70 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 71ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:45:51,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...