/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf --buchiautomizer.automaton.type.for.concurrent.programs PARTIAL_ORDER_BA -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/4_plus_thr/lock5.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:50:52,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:50:52,328 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:50:52,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:50:52,333 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:50:52,360 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:50:52,361 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:50:52,361 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:50:52,361 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:50:52,361 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:50:52,362 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:50:52,362 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:50:52,362 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:50:52,362 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:50:52,362 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:50:52,362 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:50:52,362 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:50:52,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:50:52,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:50:52,362 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:50:52,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:50:52,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:50:52,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:50:52,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:50:52,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:50:52,363 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:50:52,363 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:50:52,363 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:50:52,363 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:50:52,363 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:50:52,363 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:50:52,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:50:52,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:50:52,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:50:52,363 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:50:52,364 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:50:52,364 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> PARTIAL_ORDER_BA [2025-02-17 22:50:52,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:50:52,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:50:52,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:50:52,585 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:50:52,587 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:50:52,588 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/lock5.c.bpl [2025-02-17 22:50:52,588 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/lock5.c.bpl' [2025-02-17 22:50:52,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:50:52,604 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:50:52,605 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:50:52,605 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:50:52,605 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:50:52,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:52" (1/1) ... [2025-02-17 22:50:52,616 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:52" (1/1) ... [2025-02-17 22:50:52,621 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:50:52,622 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:50:52,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:50:52,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:50:52,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:50:52,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:52" (1/1) ... [2025-02-17 22:50:52,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:52" (1/1) ... [2025-02-17 22:50:52,629 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:52" (1/1) ... [2025-02-17 22:50:52,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:52" (1/1) ... [2025-02-17 22:50:52,631 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:52" (1/1) ... [2025-02-17 22:50:52,632 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:52" (1/1) ... [2025-02-17 22:50:52,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:52" (1/1) ... [2025-02-17 22:50:52,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:52" (1/1) ... [2025-02-17 22:50:52,638 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:52" (1/1) ... [2025-02-17 22:50:52,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:50:52,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:50:52,639 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:50:52,639 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:50:52,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:52" (1/1) ... [2025-02-17 22:50:52,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:52,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:52,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:52,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:50:52,692 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:50:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:50:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:50:52,692 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:50:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:50:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:50:52,692 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:50:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:50:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:50:52,693 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:50:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:50:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:50:52,693 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:50:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:50:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:50:52,693 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-02-17 22:50:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-17 22:50:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-17 22:50:52,694 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:50:52,729 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:50:52,730 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:50:52,832 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:50:52,832 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:50:52,846 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:50:52,846 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:50:52,846 INFO L201 PluginConnector]: Adding new model lock5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:50:52 BoogieIcfgContainer [2025-02-17 22:50:52,846 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:50:52,847 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:50:52,847 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:50:52,851 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:50:52,851 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:50:52,852 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:52" (1/2) ... [2025-02-17 22:50:52,853 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@705e962 and model type lock5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:50:52, skipping insertion in model container [2025-02-17 22:50:52,853 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:50:52,853 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "lock5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:50:52" (2/2) ... [2025-02-17 22:50:52,854 INFO L363 chiAutomizerObserver]: Analyzing ICFG lock5.c.bpl [2025-02-17 22:50:52,906 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2025-02-17 22:50:52,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 56 transitions, 147 flow [2025-02-17 22:50:52,965 INFO L124 PetriNetUnfolderBase]: 5/46 cut-off events. [2025-02-17 22:50:52,969 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-17 22:50:52,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 46 events. 5/46 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 131 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2025-02-17 22:50:52,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 56 transitions, 147 flow [2025-02-17 22:50:52,979 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 46 transitions, 122 flow [2025-02-17 22:50:52,985 WARN L98 AmpleReduction]: Starting ample reduction [2025-02-17 22:50:56,942 INFO L100 AmpleReduction]: Finished ample reduction [2025-02-17 22:50:56,942 INFO L101 AmpleReduction]: Number of pruned transitions: 39136, Number of non-trivial ample sets: 33783 [2025-02-17 22:50:56,942 INFO L103 AmpleReduction]: Number of trivial ample sets caused by loops: 16958 [2025-02-17 22:50:56,962 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:50:56,962 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:50:56,962 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:50:56,962 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:50:56,962 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:50:56,962 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:50:56,962 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:50:56,962 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:50:57,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19073 states, 19072 states have (on average 2.903313758389262) internal successors, (55372), 19072 states have internal predecessors, (55372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:57,362 INFO L131 ngComponentsAnalysis]: Automaton has 1773 accepting balls. 11824 [2025-02-17 22:50:57,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:50:57,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:50:57,368 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:50:57,369 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:50:57,369 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:50:57,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19073 states, 19072 states have (on average 2.903313758389262) internal successors, (55372), 19072 states have internal predecessors, (55372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:57,688 INFO L131 ngComponentsAnalysis]: Automaton has 1773 accepting balls. 11824 [2025-02-17 22:50:57,688 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:50:57,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:50:57,690 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:50:57,690 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:50:57,695 INFO L752 eck$LassoCheckResult]: Stem: "[159] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[122] $Ultimate##0-->L32: Formula: (and (= v_l_16 0) (< 0 v_l_17)) InVars {l=v_l_17} OutVars{l=v_l_16} AuxVars[] AssignedVars[l]" [2025-02-17 22:50:57,696 INFO L754 eck$LassoCheckResult]: Loop: "[124] L32-->L34: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[126] L34-->L35: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[128] L35-->L32: Formula: (= v_x2_2 (+ v_x2_1 1)) InVars {x2=v_x2_2} OutVars{x2=v_x2_1} AuxVars[] AssignedVars[x2]" [2025-02-17 22:50:57,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:57,699 INFO L85 PathProgramCache]: Analyzing trace with hash 6012, now seen corresponding path program 1 times [2025-02-17 22:50:57,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:57,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744800557] [2025-02-17 22:50:57,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:57,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:57,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:50:57,758 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:50:57,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:57,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:57,759 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:57,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:50:57,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:50:57,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:57,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:57,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:57,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:57,786 INFO L85 PathProgramCache]: Analyzing trace with hash 152989, now seen corresponding path program 1 times [2025-02-17 22:50:57,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:57,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843150908] [2025-02-17 22:50:57,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:57,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:57,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:50:57,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:50:57,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:57,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:57,795 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:57,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:50:57,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:50:57,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:57,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:57,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:57,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:57,803 INFO L85 PathProgramCache]: Analyzing trace with hash 179226690, now seen corresponding path program 1 times [2025-02-17 22:50:57,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:57,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792118400] [2025-02-17 22:50:57,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:57,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:57,807 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:50:57,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:50:57,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:57,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:57,809 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:57,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:50:57,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:50:57,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:57,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:57,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:57,845 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:50:57,846 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:50:57,846 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:50:57,846 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:50:57,846 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:50:57,846 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:57,846 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:50:57,846 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:50:57,846 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:50:57,846 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:50:57,846 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:50:57,906 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:57,918 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:57,983 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:50:57,983 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:50:57,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:57,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:57,989 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:57,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:50:57,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:50:57,997 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:58,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-17 22:50:58,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:58,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:58,037 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:58,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-17 22:50:58,044 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:50:58,044 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:58,162 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:50:58,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:58,167 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:50:58,167 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:50:58,168 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:50:58,168 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:50:58,168 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:50:58,168 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:58,168 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:50:58,168 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:50:58,168 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:50:58,168 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:50:58,168 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:50:58,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:58,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:58,199 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:50:58,202 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:50:58,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:58,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:58,207 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:58,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-17 22:50:58,221 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:50:58,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:50:58,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:50:58,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:50:58,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:50:58,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:50:58,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:50:58,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:50:58,252 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:50:58,266 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:50:58,267 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:50:58,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:58,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:58,279 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:58,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-17 22:50:58,284 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:50:58,284 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:50:58,285 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:50:58,285 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, z) = -1*x1 + 1*z Supporting invariants [] [2025-02-17 22:50:58,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:58,294 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:50:58,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:58,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:50:58,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:50:58,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:58,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:58,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:50:58,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:50:58,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:50:58,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:50:58,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:58,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:58,333 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:50:58,333 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:50:58,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:50:58,385 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:50:58,426 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19073 states, 19072 states have (on average 2.903313758389262) internal successors, (55372), 19072 states have internal predecessors, (55372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) 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 22:50:59,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:59,345 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19073 states, 19072 states have (on average 2.903313758389262) internal successors, (55372), 19072 states have internal predecessors, (55372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) 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 57228 states and 180929 transitions. Complement of second has 7 states. [2025-02-17 22:50:59,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:50:59,349 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 22:50:59,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2025-02-17 22:50:59,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 141 transitions. Stem has 2 letters. Loop has 3 letters. [2025-02-17 22:50:59,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:59,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 141 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:50:59,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:59,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 141 transitions. Stem has 2 letters. Loop has 6 letters. [2025-02-17 22:50:59,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:59,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57228 states and 180929 transitions. [2025-02-17 22:51:00,190 INFO L131 ngComponentsAnalysis]: Automaton has 2984 accepting balls. 16613 [2025-02-17 22:51:00,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57228 states to 46172 states and 152433 transitions. [2025-02-17 22:51:00,700 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30356 [2025-02-17 22:51:00,804 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36879 [2025-02-17 22:51:00,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46172 states and 152433 transitions. [2025-02-17 22:51:00,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:51:00,805 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46172 states and 152433 transitions. [2025-02-17 22:51:00,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46172 states and 152433 transitions. [2025-02-17 22:51:01,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46172 to 33371. [2025-02-17 22:51:01,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33371 states, 33371 states have (on average 3.4468250876509545) internal successors, (115024), 33370 states have internal predecessors, (115024), 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 22:51:02,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33371 states to 33371 states and 115024 transitions. [2025-02-17 22:51:02,097 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33371 states and 115024 transitions. [2025-02-17 22:51:02,097 INFO L432 stractBuchiCegarLoop]: Abstraction has 33371 states and 115024 transitions. [2025-02-17 22:51:02,097 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:51:02,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33371 states and 115024 transitions. [2025-02-17 22:51:02,433 INFO L131 ngComponentsAnalysis]: Automaton has 2285 accepting balls. 13732 [2025-02-17 22:51:02,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:51:02,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:51:02,434 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:51:02,434 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:51:02,434 INFO L752 eck$LassoCheckResult]: Stem: "[159] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[162] L12-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[129] $Ultimate##0-->L48: Formula: (and (< 0 v_l_21) (= v_l_20 0)) InVars {l=v_l_21} OutVars{l=v_l_20} AuxVars[] AssignedVars[l]" [2025-02-17 22:51:02,435 INFO L754 eck$LassoCheckResult]: Loop: "[131] L48-->L50: Formula: (< v_x2_3 v_z_3) InVars {x2=v_x2_3, z=v_z_3} OutVars{x2=v_x2_3, z=v_z_3} AuxVars[] AssignedVars[]" "[133] L50-->L51: Formula: (= (+ v_x2_5 1) v_x2_4) InVars {x2=v_x2_5} OutVars{x2=v_x2_4} AuxVars[] AssignedVars[x2]" "[135] L51-->L48: Formula: (= v_x3_2 (+ v_x3_1 1)) InVars {x3=v_x3_2} OutVars{x3=v_x3_1} AuxVars[] AssignedVars[x3]" [2025-02-17 22:51:02,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:02,435 INFO L85 PathProgramCache]: Analyzing trace with hash 187741, now seen corresponding path program 1 times [2025-02-17 22:51:02,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:02,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738166202] [2025-02-17 22:51:02,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:02,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:02,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:51:02,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:51:02,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:02,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:02,439 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:51:02,439 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:51:02,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:51:02,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:02,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:02,441 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:51:02,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:02,441 INFO L85 PathProgramCache]: Analyzing trace with hash 159940, now seen corresponding path program 1 times [2025-02-17 22:51:02,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:02,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826485799] [2025-02-17 22:51:02,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:02,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:02,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:51:02,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:51:02,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:02,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:02,444 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:51:02,445 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:51:02,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:51:02,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:02,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:02,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:51:02,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:02,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1298154984, now seen corresponding path program 1 times [2025-02-17 22:51:02,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:02,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360825769] [2025-02-17 22:51:02,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:02,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:02,448 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:51:02,449 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:51:02,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:02,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:02,450 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:51:02,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:51:02,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:51:02,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:02,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:02,453 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:51:02,472 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:51:02,472 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:51:02,473 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:51:02,473 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:51:02,473 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:51:02,473 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:02,473 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:51:02,473 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:51:02,473 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:51:02,473 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:51:02,473 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:51:02,473 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:02,476 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:02,497 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:51:02,497 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:51:02,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:02,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:02,499 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 22:51:02,501 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 22:51:02,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:51:02,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:02,520 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 22:51:02,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:02,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:02,522 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 22:51:02,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:51:02,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:02,526 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 22:51:02,553 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:51:02,553 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 22:51:02,558 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 22:51:02,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:02,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:02,561 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 22:51:02,561 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 22:51:02,564 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:51:02,564 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:02,579 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 22:51:02,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:02,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:02,581 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 22:51:02,582 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 22:51:02,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:51:02,583 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:02,647 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:51:02,651 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 22:51:02,651 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:51:02,651 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:51:02,651 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:51:02,651 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:51:02,651 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:51:02,652 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:02,652 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:51:02,652 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:51:02,652 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:51:02,652 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:51:02,652 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:51:02,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:02,658 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:02,682 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:51:02,682 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:51:02,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:02,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:02,684 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 22:51:02,685 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 22:51:02,687 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 22:51:02,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:51:02,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:51:02,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:51:02,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:51:02,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:51:02,698 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:51:02,698 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:51:02,699 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:51:02,705 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 22:51:02,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:02,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:02,707 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 22:51:02,708 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 22:51:02,710 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 22:51:02,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:51:02,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:51:02,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:51:02,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:51:02,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:51:02,724 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:51:02,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:51:02,726 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:51:02,729 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:51:02,729 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:51:02,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:02,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:02,731 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 22:51:02,733 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 22:51:02,734 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:51:02,734 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:51:02,734 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:51:02,734 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x2) = 1*z - 1*x2 Supporting invariants [] [2025-02-17 22:51:02,740 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 22:51:02,741 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:51:02,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:02,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:51:02,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:51:02,760 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:02,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:51:02,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:51:02,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:51:02,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:51:02,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:51:02,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:02,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:51:02,770 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:51:02,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:51:02,796 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 22:51:02,797 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 22:51:02,797 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33371 states and 115024 transitions. cyclomatic complexity: 84514 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 22:51:03,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-02-17 22:51:04,210 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33371 states and 115024 transitions. cyclomatic complexity: 84514. 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 114370 states and 408009 transitions. Complement of second has 7 states. [2025-02-17 22:51:04,210 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 22:51:04,211 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 22:51:04,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2025-02-17 22:51:04,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 140 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-17 22:51:04,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:04,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 140 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-17 22:51:04,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:04,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 140 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-17 22:51:04,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:04,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114370 states and 408009 transitions. [2025-02-17 22:51:05,781 INFO L131 ngComponentsAnalysis]: Automaton has 3775 accepting balls. 19969 [2025-02-17 22:51:06,977 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114370 states to 93470 states and 345680 transitions. [2025-02-17 22:51:06,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42290 [2025-02-17 22:51:07,114 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51523 [2025-02-17 22:51:07,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93470 states and 345680 transitions. [2025-02-17 22:51:07,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:51:07,115 INFO L218 hiAutomatonCegarLoop]: Abstraction has 93470 states and 345680 transitions. [2025-02-17 22:51:07,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93470 states and 345680 transitions. [2025-02-17 22:51:08,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93470 to 69006. [2025-02-17 22:51:08,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69006 states, 69006 states have (on average 3.8597513259716547) internal successors, (266346), 69005 states have internal predecessors, (266346), 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 22:51:09,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69006 states to 69006 states and 266346 transitions. [2025-02-17 22:51:09,486 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69006 states and 266346 transitions. [2025-02-17 22:51:09,487 INFO L432 stractBuchiCegarLoop]: Abstraction has 69006 states and 266346 transitions. [2025-02-17 22:51:09,487 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:51:09,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69006 states and 266346 transitions. [2025-02-17 22:51:10,166 INFO L131 ngComponentsAnalysis]: Automaton has 3012 accepting balls. 16747 [2025-02-17 22:51:10,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:51:10,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:51:10,167 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:51:10,167 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:51:10,167 INFO L752 eck$LassoCheckResult]: Stem: "[159] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[162] L12-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[165] L13-->$Ultimate##0: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[136] $Ultimate##0-->L64: Formula: (and (= v_l_24 0) (< 0 v_l_25)) InVars {l=v_l_25} OutVars{l=v_l_24} AuxVars[] AssignedVars[l]" [2025-02-17 22:51:10,167 INFO L754 eck$LassoCheckResult]: Loop: "[138] L64-->L66: Formula: (< v_x3_4 v_z_6) InVars {x3=v_x3_4, z=v_z_6} OutVars{x3=v_x3_4, z=v_z_6} AuxVars[] AssignedVars[]" "[140] L66-->L67: Formula: (= (+ v_x3_6 1) v_x3_5) InVars {x3=v_x3_6} OutVars{x3=v_x3_5} AuxVars[] AssignedVars[x3]" "[142] L67-->L64: Formula: (= v_x4_2 (+ v_x4_1 1)) InVars {x4=v_x4_2} OutVars{x4=v_x4_1} AuxVars[] AssignedVars[x4]" [2025-02-17 22:51:10,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:10,168 INFO L85 PathProgramCache]: Analyzing trace with hash 5821223, now seen corresponding path program 1 times [2025-02-17 22:51:10,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:10,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867926770] [2025-02-17 22:51:10,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:10,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:10,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:51:10,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:51:10,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:10,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:10,172 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:51:10,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:51:10,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:51:10,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:10,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:10,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:51:10,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:10,178 INFO L85 PathProgramCache]: Analyzing trace with hash 166891, now seen corresponding path program 1 times [2025-02-17 22:51:10,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:10,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632411086] [2025-02-17 22:51:10,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:10,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:10,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:51:10,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:51:10,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:10,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:10,184 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:51:10,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:51:10,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:51:10,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:10,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:10,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:51:10,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:10,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1621499653, now seen corresponding path program 1 times [2025-02-17 22:51:10,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:10,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668552790] [2025-02-17 22:51:10,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:10,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:10,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:51:10,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:51:10,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:10,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:10,193 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:51:10,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:51:10,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:51:10,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:10,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:10,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:51:10,222 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:51:10,222 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:51:10,222 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:51:10,223 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:51:10,223 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:51:10,223 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:10,223 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:51:10,223 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:51:10,223 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:51:10,223 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:51:10,223 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:51:10,223 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:10,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:10,248 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:51:10,248 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:51:10,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:10,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:10,250 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 22:51:10,252 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 22:51:10,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:51:10,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:10,271 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 22:51:10,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:10,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:10,273 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 22:51:10,276 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 22:51:10,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:51:10,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:10,308 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:51:10,308 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x4=0} Honda state: {x4=0} Generalized eigenvectors: [{x4=-5}, {x4=-3}, {x4=7}] Lambdas: [1, 1, 1] Nus: [0, 0] [2025-02-17 22:51:10,313 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 22:51:10,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:10,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:10,315 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 22:51:10,316 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 22:51:10,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:51:10,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:10,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-02-17 22:51:10,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:10,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:10,335 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 22:51:10,335 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 22:51:10,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:51:10,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:10,404 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:51:10,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-02-17 22:51:10,408 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:51:10,409 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:51:10,409 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:51:10,409 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:51:10,409 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:51:10,409 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:10,409 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:51:10,409 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:51:10,409 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:51:10,409 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:51:10,409 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:51:10,410 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:10,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:10,448 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:51:10,448 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:51:10,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:10,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:10,450 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 22:51:10,452 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 22:51:10,453 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 22:51:10,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:51:10,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:51:10,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:51:10,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:51:10,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:51:10,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:51:10,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:51:10,467 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:51:10,472 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 22:51:10,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:10,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:10,474 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 22:51:10,476 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 22:51:10,477 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 22:51:10,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:51:10,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:51:10,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:51:10,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:51:10,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:51:10,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:51:10,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:51:10,490 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:51:10,491 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:51:10,491 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:51:10,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:10,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:10,493 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 22:51:10,495 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 22:51:10,496 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:51:10,496 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:51:10,496 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:51:10,496 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x3, z) = -1*x3 + 1*z Supporting invariants [] [2025-02-17 22:51:10,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-02-17 22:51:10,502 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:51:10,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:10,516 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:51:10,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:51:10,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:10,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:51:10,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:51:10,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:51:10,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:51:10,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:51:10,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:10,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:51:10,529 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:51:10,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:51:10,554 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 22:51:10,554 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 22:51:10,555 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69006 states and 266346 transitions. cyclomatic complexity: 202589 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 22:51:10,785 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Exception during sending of exit command (exit): Broken pipe [2025-02-17 22:51:10,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-02-17 22:51:13,212 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69006 states and 266346 transitions. cyclomatic complexity: 202589. 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 246595 states and 972198 transitions. Complement of second has 7 states. [2025-02-17 22:51:13,212 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 22:51:13,213 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 22:51:13,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2025-02-17 22:51:13,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 140 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-17 22:51:13,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:13,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 140 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-17 22:51:13,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:13,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 140 transitions. Stem has 4 letters. Loop has 6 letters. [2025-02-17 22:51:13,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:13,214 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 246595 states and 972198 transitions. [2025-02-17 22:51:17,286 INFO L131 ngComponentsAnalysis]: Automaton has 4941 accepting balls. 24085 [2025-02-17 22:51:20,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 246595 states to 199751 states and 821233 transitions. [2025-02-17 22:51:20,021 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62781 [2025-02-17 22:51:20,238 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74332 [2025-02-17 22:51:20,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 199751 states and 821233 transitions. [2025-02-17 22:51:20,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:51:20,238 INFO L218 hiAutomatonCegarLoop]: Abstraction has 199751 states and 821233 transitions. [2025-02-17 22:51:20,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199751 states and 821233 transitions. [2025-02-17 22:51:24,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199751 to 154253. [2025-02-17 22:51:24,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154253 states, 154253 states have (on average 4.275813112224721) internal successors, (659557), 154252 states have internal predecessors, (659557), 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 22:51:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154253 states to 154253 states and 659557 transitions. [2025-02-17 22:51:26,248 INFO L240 hiAutomatonCegarLoop]: Abstraction has 154253 states and 659557 transitions. [2025-02-17 22:51:26,248 INFO L432 stractBuchiCegarLoop]: Abstraction has 154253 states and 659557 transitions. [2025-02-17 22:51:26,248 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:51:26,248 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 154253 states and 659557 transitions. [2025-02-17 22:51:27,725 INFO L131 ngComponentsAnalysis]: Automaton has 4097 accepting balls. 20787 [2025-02-17 22:51:27,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:51:27,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:51:27,727 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:51:27,727 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:51:27,727 INFO L752 eck$LassoCheckResult]: Stem: "[159] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[162] L12-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[165] L13-->$Ultimate##0: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[168] L14-->$Ultimate##0: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2]" "[143] $Ultimate##0-->L80: Formula: (and (< 0 v_l_29) (= v_l_28 0)) InVars {l=v_l_29} OutVars{l=v_l_28} AuxVars[] AssignedVars[l]" [2025-02-17 22:51:27,728 INFO L754 eck$LassoCheckResult]: Loop: "[145] L80-->L82: Formula: (< v_x4_3 v_z_7) InVars {x4=v_x4_3, z=v_z_7} OutVars{x4=v_x4_3, z=v_z_7} AuxVars[] AssignedVars[]" "[147] L82-->L83: Formula: (= v_x4_4 (+ v_x4_5 1)) InVars {x4=v_x4_5} OutVars{x4=v_x4_4} AuxVars[] AssignedVars[x4]" "[149] L83-->L80: Formula: (= v_x5_2 (+ v_x5_1 1)) InVars {x5=v_x5_2} OutVars{x5=v_x5_1} AuxVars[] AssignedVars[x5]" [2025-02-17 22:51:27,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:27,728 INFO L85 PathProgramCache]: Analyzing trace with hash 180459048, now seen corresponding path program 1 times [2025-02-17 22:51:27,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:27,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706620330] [2025-02-17 22:51:27,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:27,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:27,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:51:27,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:51:27,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:27,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:27,732 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:51:27,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:51:27,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:51:27,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:27,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:27,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:51:27,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:27,735 INFO L85 PathProgramCache]: Analyzing trace with hash 173842, now seen corresponding path program 1 times [2025-02-17 22:51:27,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:27,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413391190] [2025-02-17 22:51:27,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:27,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:27,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:51:27,739 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:51:27,739 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:27,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:27,739 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:51:27,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:51:27,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:51:27,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:27,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:27,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:51:27,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:27,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1243411573, now seen corresponding path program 1 times [2025-02-17 22:51:27,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:27,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866243891] [2025-02-17 22:51:27,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:27,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:27,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:51:27,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:51:27,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:27,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:27,752 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:51:27,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:51:27,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:51:27,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:27,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:27,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:51:27,799 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:51:27,799 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:51:27,799 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:51:27,799 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:51:27,800 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:51:27,800 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:27,800 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:51:27,800 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:51:27,800 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:51:27,800 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:51:27,800 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:51:27,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:27,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:27,831 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:51:27,831 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:51:27,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:27,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:27,834 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 22:51:27,835 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 22:51:27,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:51:27,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:27,854 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 22:51:27,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:27,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:27,857 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 22:51:27,857 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 22:51:27,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:51:27,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:27,920 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:51:27,924 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 22:51:27,924 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:51:27,924 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:51:27,924 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:51:27,924 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:51:27,924 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:51:27,924 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:27,924 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:51:27,924 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:51:27,924 INFO L132 ssoRankerPreferences]: Filename of dumped script: lock5.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:51:27,924 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:51:27,924 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:51:27,925 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:27,935 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:27,955 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:51:27,955 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:51:27,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:27,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:27,959 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 22:51:27,960 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 22:51:27,961 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 22:51:27,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:51:27,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:51:27,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:51:27,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:51:27,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:51:27,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:51:27,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:51:27,974 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:51:27,977 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:51:27,977 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:51:27,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:27,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:27,984 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 22:51:27,985 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 22:51:27,986 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:51:27,986 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:51:27,986 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:51:27,986 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x4, z) = -1*x4 + 1*z Supporting invariants [] [2025-02-17 22:51:27,991 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 22:51:27,992 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:51:28,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:28,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:51:28,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:51:28,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:28,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:51:28,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:51:28,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:51:28,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:51:28,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:51:28,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:28,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:51:28,019 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:51:28,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:51:28,038 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 22:51:28,039 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 22:51:28,039 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 154253 states and 659557 transitions. cyclomatic complexity: 515955 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:51:28,580 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 22:51:34,649 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 154253 states and 659557 transitions. cyclomatic complexity: 515955. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 563385 states and 2435189 transitions. Complement of second has 7 states. [2025-02-17 22:51:34,649 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 22:51:34,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:51:34,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 138 transitions. [2025-02-17 22:51:34,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 138 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:51:34,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:34,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 138 transitions. Stem has 8 letters. Loop has 3 letters. [2025-02-17 22:51:34,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:34,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 138 transitions. Stem has 5 letters. Loop has 6 letters. [2025-02-17 22:51:34,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:34,651 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 563385 states and 2435189 transitions. [2025-02-17 22:51:44,676 INFO L131 ngComponentsAnalysis]: Automaton has 6388 accepting balls. 29073 [2025-02-17 22:51:51,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 563385 states to 449231 states and 2021589 transitions. [2025-02-17 22:51:51,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 100810 [2025-02-17 22:51:51,610 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 115365 [2025-02-17 22:51:51,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 449231 states and 2021589 transitions. [2025-02-17 22:51:51,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:51:51,611 INFO L218 hiAutomatonCegarLoop]: Abstraction has 449231 states and 2021589 transitions. [2025-02-17 22:51:52,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449231 states and 2021589 transitions. [2025-02-17 22:52:01,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449231 to 350853. [2025-02-17 22:52:02,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350853 states, 350853 states have (on average 4.660772460261135) internal successors, (1635246), 350852 states have internal predecessors, (1635246), 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)