/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/pp6.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:52:10,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:52:10,315 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:52:10,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:52:10,323 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:52:10,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:52:10,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:52:10,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:52:10,349 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:52:10,349 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:52:10,349 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:52:10,349 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:52:10,349 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:52:10,349 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:52:10,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:52:10,350 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:52:10,351 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:52:10,351 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:52:10,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:52:10,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:52:10,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:52:10,351 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:52:10,351 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 22:52:10,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:52:10,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:52:10,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:52:10,590 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:52:10,592 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:52:10,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/pp6.c.bpl [2025-02-17 22:52:10,593 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/pp6.c.bpl' [2025-02-17 22:52:10,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:52:10,605 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:52:10,606 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:52:10,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:52:10,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:52:10,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pp6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:10" (1/1) ... [2025-02-17 22:52:10,616 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pp6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:10" (1/1) ... [2025-02-17 22:52:10,620 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:52:10,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:52:10,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:52:10,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:52:10,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:52:10,625 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pp6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:10" (1/1) ... [2025-02-17 22:52:10,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pp6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:10" (1/1) ... [2025-02-17 22:52:10,626 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pp6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:10" (1/1) ... [2025-02-17 22:52:10,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pp6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:10" (1/1) ... [2025-02-17 22:52:10,628 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "pp6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:10" (1/1) ... [2025-02-17 22:52:10,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pp6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:10" (1/1) ... [2025-02-17 22:52:10,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pp6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:10" (1/1) ... [2025-02-17 22:52:10,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "pp6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:10" (1/1) ... [2025-02-17 22:52:10,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pp6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:10" (1/1) ... [2025-02-17 22:52:10,632 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:52:10,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:52:10,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:52:10,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:52:10,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pp6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:10" (1/1) ... [2025-02-17 22:52:10,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:10,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:10,657 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 22:52:10,660 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 22:52:10,676 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:52:10,676 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:52:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:52:10,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:52:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:52:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:52:10,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:52:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:52:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:52:10,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:52:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:52:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:52:10,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:52:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:52:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:52:10,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-02-17 22:52:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-17 22:52:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-17 22:52:10,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-02-17 22:52:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-02-17 22:52:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-02-17 22:52:10,678 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 22:52:10,713 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:52:10,714 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:52:10,823 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:52:10,823 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:52:10,833 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:52:10,833 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:52:10,834 INFO L201 PluginConnector]: Adding new model pp6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:52:10 BoogieIcfgContainer [2025-02-17 22:52:10,834 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:52:10,835 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:52:10,835 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:52:10,840 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:52:10,840 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:52:10,840 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pp6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:10" (1/2) ... [2025-02-17 22:52:10,842 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47880748 and model type pp6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:52:10, skipping insertion in model container [2025-02-17 22:52:10,842 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:52:10,842 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pp6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:52:10" (2/2) ... [2025-02-17 22:52:10,843 INFO L363 chiAutomizerObserver]: Analyzing ICFG pp6.c.bpl [2025-02-17 22:52:10,943 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2025-02-17 22:52:10,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 62 transitions, 166 flow [2025-02-17 22:52:11,015 INFO L124 PetriNetUnfolderBase]: 6/50 cut-off events. [2025-02-17 22:52:11,018 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-17 22:52:11,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 50 events. 6/50 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 129 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2025-02-17 22:52:11,023 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 62 transitions, 166 flow [2025-02-17 22:52:11,028 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 50 transitions, 136 flow [2025-02-17 22:52:11,033 WARN L98 AmpleReduction]: Starting ample reduction [2025-02-17 22:52:24,570 INFO L100 AmpleReduction]: Finished ample reduction [2025-02-17 22:52:24,571 INFO L101 AmpleReduction]: Number of pruned transitions: 110026, Number of non-trivial ample sets: 166664 [2025-02-17 22:52:24,571 INFO L103 AmpleReduction]: Number of trivial ample sets caused by loops: 111393 [2025-02-17 22:52:24,611 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:52:24,611 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:52:24,611 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:52:24,612 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:52:24,612 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:52:24,612 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:52:24,612 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:52:24,612 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:52:24,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 65320 states, 65319 states have (on average 4.2583934230468925) internal successors, (278154), 65319 states have internal predecessors, (278154), 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 22:52:25,916 INFO L131 ngComponentsAnalysis]: Automaton has 3318 accepting balls. 48846 [2025-02-17 22:52:25,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:52:25,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:52:25,922 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:52:25,923 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:52:25,923 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:52:26,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 65320 states, 65319 states have (on average 4.2583934230468925) internal successors, (278154), 65319 states have internal predecessors, (278154), 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 22:52:26,935 INFO L131 ngComponentsAnalysis]: Automaton has 3318 accepting balls. 48846 [2025-02-17 22:52:26,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:52:26,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:52:26,937 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:52:26,937 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:52:26,941 INFO L752 eck$LassoCheckResult]: Stem: "[90] $Ultimate##0-->L17: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[162] L17-->L34: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" [2025-02-17 22:52:26,941 INFO L754 eck$LassoCheckResult]: Loop: "[119] L34-->L36: Formula: (< v_x1_1 v_z1_1) InVars {x1=v_x1_1, z1=v_z1_1} OutVars{x1=v_x1_1, z1=v_z1_1} AuxVars[] AssignedVars[]" "[121] L36-->L37: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[123] L37-->L34: Formula: (= (+ v_c_2 1) v_c_1) InVars {c=v_c_2} OutVars{c=v_c_1} AuxVars[] AssignedVars[c]" [2025-02-17 22:52:26,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:26,944 INFO L85 PathProgramCache]: Analyzing trace with hash 3913, now seen corresponding path program 1 times [2025-02-17 22:52:26,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:26,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743560777] [2025-02-17 22:52:26,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:26,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:26,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:52:26,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:52:26,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:26,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:26,993 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:26,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:52:26,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:52:26,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:26,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:27,009 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:27,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:27,012 INFO L85 PathProgramCache]: Analyzing trace with hash 148024, now seen corresponding path program 1 times [2025-02-17 22:52:27,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:27,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622870120] [2025-02-17 22:52:27,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:27,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:27,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:27,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:27,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:27,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:27,021 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:27,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:27,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:27,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:27,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:27,026 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:27,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:27,027 INFO L85 PathProgramCache]: Analyzing trace with hash 116690416, now seen corresponding path program 1 times [2025-02-17 22:52:27,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:27,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539186] [2025-02-17 22:52:27,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:27,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:27,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:52:27,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:52:27,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:27,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:27,033 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:27,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:52:27,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:52:27,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:27,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:27,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:27,061 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:27,062 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:27,062 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:27,062 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:27,062 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:52:27,062 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:27,062 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:27,062 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:27,062 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp6.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:52:27,062 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:27,062 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:27,245 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:27,274 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:27,339 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:27,343 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:52:27,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:27,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:27,351 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 22:52:27,352 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 22:52:27,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:27,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:27,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:27,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:27,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:27,378 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 22:52:27,379 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 22:52:27,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:27,381 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:27,423 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:52:27,424 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=-3}, {c=-3}, {c=7}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-02-17 22:52:27,429 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 22:52:27,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:27,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:27,432 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 22:52:27,433 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 22:52:27,435 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:27,435 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:27,460 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 22:52:27,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:27,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:27,465 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 22:52:27,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:27,467 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:27,470 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 22:52:27,556 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:52:27,569 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 22:52:27,569 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:27,569 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:27,569 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:27,569 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:27,569 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:52:27,569 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:27,569 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:27,569 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:27,570 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp6.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:52:27,570 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:27,570 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:27,571 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:27,597 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:27,665 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:27,681 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:52:27,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:27,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:27,696 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 22:52:27,714 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 22:52:27,715 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 22:52:27,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:27,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:27,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:27,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:27,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:27,751 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:27,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:27,755 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:52:27,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:27,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:27,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:27,771 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 22:52:27,772 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 22:52:27,777 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 22:52:27,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:27,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:27,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:27,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:27,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:27,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:27,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:27,807 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:52:27,822 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:52:27,822 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:52:27,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:27,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:27,842 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 22:52:27,844 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 22:52:27,848 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:52:27,848 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:52:27,849 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:52:27,849 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z1, x1) = 1*z1 - 1*x1 Supporting invariants [] [2025-02-17 22:52:27,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-17 22:52:27,867 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:52:27,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:27,900 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:52:27,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:52:27,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:27,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:27,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:52:27,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:27,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:27,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:27,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:27,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:27,919 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:52:27,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:27,952 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 22:52:27,966 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 22:52:28,120 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 65320 states, 65319 states have (on average 4.2583934230468925) internal successors, (278154), 65319 states have internal predecessors, (278154), 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 22:52:29,728 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 22:52:30,570 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 65320 states, 65319 states have (on average 4.2583934230468925) internal successors, (278154), 65319 states have internal predecessors, (278154), 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 158548 states and 759507 transitions. Complement of second has 6 states. [2025-02-17 22:52:30,572 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 22:52:30,575 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 22:52:30,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2025-02-17 22:52:30,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 122 transitions. Stem has 2 letters. Loop has 3 letters. [2025-02-17 22:52:30,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:30,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 122 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:52:30,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:30,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 122 transitions. Stem has 2 letters. Loop has 6 letters. [2025-02-17 22:52:30,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:30,586 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158548 states and 759507 transitions. [2025-02-17 22:52:34,339 INFO L131 ngComponentsAnalysis]: Automaton has 4037 accepting balls. 44132 [2025-02-17 22:52:36,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158548 states to 117263 states and 616733 transitions. [2025-02-17 22:52:36,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62766 [2025-02-17 22:52:36,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 80927 [2025-02-17 22:52:36,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 117263 states and 616733 transitions. [2025-02-17 22:52:36,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:52:36,559 INFO L218 hiAutomatonCegarLoop]: Abstraction has 117263 states and 616733 transitions. [2025-02-17 22:52:36,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117263 states and 616733 transitions. [2025-02-17 22:52:40,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117263 to 99109. [2025-02-17 22:52:40,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99109 states, 99109 states have (on average 5.1408751980143075) internal successors, (509507), 99108 states have internal predecessors, (509507), 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 22:52:41,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99109 states to 99109 states and 509507 transitions. [2025-02-17 22:52:41,368 INFO L240 hiAutomatonCegarLoop]: Abstraction has 99109 states and 509507 transitions. [2025-02-17 22:52:41,368 INFO L432 stractBuchiCegarLoop]: Abstraction has 99109 states and 509507 transitions. [2025-02-17 22:52:41,368 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:52:41,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99109 states and 509507 transitions. [2025-02-17 22:52:42,243 INFO L131 ngComponentsAnalysis]: Automaton has 4037 accepting balls. 44132 [2025-02-17 22:52:42,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:52:42,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:52:42,245 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:52:42,245 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:52:42,245 INFO L752 eck$LassoCheckResult]: Stem: "[90] $Ultimate##0-->L17: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[162] L17-->L34: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[165] L17-1-->L45: Formula: (and (= v_thread2Thread1of1ForFork3_thidvar0_2 2) (= v_thread2Thread1of1ForFork3_thidvar1_2 2)) InVars {} OutVars{thread2Thread1of1ForFork3_thidvar0=v_thread2Thread1of1ForFork3_thidvar0_2, thread2Thread1of1ForFork3_thidvar1=v_thread2Thread1of1ForFork3_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork3_thidvar0, thread2Thread1of1ForFork3_thidvar1]" "[118] L34-->L39: Formula: (<= v_z1_2 v_x1_4) InVars {x1=v_x1_4, z1=v_z1_2} OutVars{x1=v_x1_4, z1=v_z1_2} AuxVars[] AssignedVars[]" "[120] L39-->thread1FINAL: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" [2025-02-17 22:52:42,245 INFO L754 eck$LassoCheckResult]: Loop: "[125] L45-->L47: Formula: (< v_x2_1 v_z2_1) InVars {z2=v_z2_1, x2=v_x2_1} OutVars{z2=v_z2_1, x2=v_x2_1} AuxVars[] AssignedVars[]" "[127] L47-->L48: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" "[129] L48-->L45: Formula: (= (+ v_c_4 1) v_c_3) InVars {c=v_c_4} OutVars{c=v_c_3} AuxVars[] AssignedVars[c]" [2025-02-17 22:52:42,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:42,246 INFO L85 PathProgramCache]: Analyzing trace with hash 116734526, now seen corresponding path program 1 times [2025-02-17 22:52:42,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:42,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134180962] [2025-02-17 22:52:42,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:42,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:42,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:52:42,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:52:42,250 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:42,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:42,250 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:42,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:52:42,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:52:42,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:42,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:42,256 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:42,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:42,256 INFO L85 PathProgramCache]: Analyzing trace with hash 153982, now seen corresponding path program 1 times [2025-02-17 22:52:42,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:42,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264477840] [2025-02-17 22:52:42,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:42,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:42,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:42,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:42,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:42,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:42,259 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:42,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:42,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:42,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:42,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:42,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:42,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:42,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1285121503, now seen corresponding path program 1 times [2025-02-17 22:52:42,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:42,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736643471] [2025-02-17 22:52:42,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:42,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:42,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:52:42,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:52:42,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:42,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:42,266 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:42,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:52:42,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:52:42,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:42,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:42,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:42,294 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:42,294 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:42,294 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:42,294 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:42,294 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:52:42,294 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:42,294 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:42,294 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:42,294 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp6.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:52:42,294 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:42,294 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:42,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:42,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:42,318 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:42,318 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:52:42,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:42,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:42,320 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 22:52:42,321 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 22:52:42,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:42,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:42,339 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 22:52:42,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:42,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:42,341 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 22:52:42,341 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 22:52:42,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:42,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:42,401 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:52:42,405 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-02-17 22:52:42,405 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:42,405 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:42,405 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:42,405 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:42,405 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:52:42,405 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:42,405 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:42,405 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:42,405 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp6.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:52:42,405 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:42,405 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:42,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:42,411 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:42,434 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:42,434 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:52:42,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:42,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:42,437 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 22:52:42,438 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 22:52:42,439 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 22:52:42,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:42,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:42,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:42,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:42,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:42,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:42,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:42,546 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:52:42,548 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:52:42,548 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:52:42,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:42,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:42,550 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 22:52:42,552 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 22:52:42,554 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:52:42,554 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:52:42,554 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:52:42,554 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z2, x2) = 1*z2 - 1*x2 Supporting invariants [] [2025-02-17 22:52:42,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:42,560 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:52:42,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:42,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:52:42,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:52:42,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:42,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:42,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:52:42,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:42,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:42,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:42,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:42,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:42,591 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:52:42,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:42,615 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 22:52:42,616 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 22:52:42,616 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 99109 states and 509507 transitions. cyclomatic complexity: 415557 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 22:52:43,387 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 22:52:44,924 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 99109 states and 509507 transitions. cyclomatic complexity: 415557. 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 167701 states and 858127 transitions. Complement of second has 6 states. [2025-02-17 22:52:44,924 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 22:52:44,925 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 22:52:44,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2025-02-17 22:52:44,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 150 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:52:44,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:44,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 150 transitions. Stem has 8 letters. Loop has 3 letters. [2025-02-17 22:52:44,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:44,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 150 transitions. Stem has 5 letters. Loop has 6 letters. [2025-02-17 22:52:44,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:44,926 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167701 states and 858127 transitions. [2025-02-17 22:52:48,046 INFO L131 ngComponentsAnalysis]: Automaton has 4961 accepting balls. 44185 [2025-02-17 22:52:50,336 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167701 states to 150283 states and 788047 transitions. [2025-02-17 22:52:50,336 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74690 [2025-02-17 22:52:50,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93136 [2025-02-17 22:52:50,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 150283 states and 788047 transitions. [2025-02-17 22:52:50,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:52:50,834 INFO L218 hiAutomatonCegarLoop]: Abstraction has 150283 states and 788047 transitions. [2025-02-17 22:52:51,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150283 states and 788047 transitions. [2025-02-17 22:52:54,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150283 to 127425. [2025-02-17 22:52:54,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127425 states, 127425 states have (on average 5.418936629389838) internal successors, (690508), 127424 states have internal predecessors, (690508), 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 22:52:55,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127425 states to 127425 states and 690508 transitions. [2025-02-17 22:52:55,400 INFO L240 hiAutomatonCegarLoop]: Abstraction has 127425 states and 690508 transitions. [2025-02-17 22:52:55,400 INFO L432 stractBuchiCegarLoop]: Abstraction has 127425 states and 690508 transitions. [2025-02-17 22:52:55,401 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:52:55,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 127425 states and 690508 transitions. [2025-02-17 22:52:56,704 INFO L131 ngComponentsAnalysis]: Automaton has 4961 accepting balls. 44185 [2025-02-17 22:52:56,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:52:56,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:52:56,706 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:52:56,706 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:52:56,707 INFO L752 eck$LassoCheckResult]: Stem: "[90] $Ultimate##0-->L17: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[162] L17-->L34: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[165] L17-1-->L45: Formula: (and (= v_thread2Thread1of1ForFork3_thidvar0_2 2) (= v_thread2Thread1of1ForFork3_thidvar1_2 2)) InVars {} OutVars{thread2Thread1of1ForFork3_thidvar0=v_thread2Thread1of1ForFork3_thidvar0_2, thread2Thread1of1ForFork3_thidvar1=v_thread2Thread1of1ForFork3_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork3_thidvar0, thread2Thread1of1ForFork3_thidvar1]" "[119] L34-->L36: Formula: (< v_x1_1 v_z1_1) InVars {x1=v_x1_1, z1=v_z1_1} OutVars{x1=v_x1_1, z1=v_z1_1} AuxVars[] AssignedVars[]" "[168] L18-->L56: Formula: (and (= v_thread3Thread1of1ForFork4_thidvar0_2 3) (= v_thread3Thread1of1ForFork4_thidvar1_2 3) (= v_thread3Thread1of1ForFork4_thidvar2_2 3)) InVars {} OutVars{thread3Thread1of1ForFork4_thidvar0=v_thread3Thread1of1ForFork4_thidvar0_2, thread3Thread1of1ForFork4_thidvar1=v_thread3Thread1of1ForFork4_thidvar1_2, thread3Thread1of1ForFork4_thidvar2=v_thread3Thread1of1ForFork4_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork4_thidvar0, thread3Thread1of1ForFork4_thidvar1, thread3Thread1of1ForFork4_thidvar2]" [2025-02-17 22:52:56,707 INFO L754 eck$LassoCheckResult]: Loop: "[125] L45-->L47: Formula: (< v_x2_1 v_z2_1) InVars {z2=v_z2_1, x2=v_x2_1} OutVars{z2=v_z2_1, x2=v_x2_1} AuxVars[] AssignedVars[]" "[127] L47-->L48: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" "[129] L48-->L45: Formula: (= (+ v_c_4 1) v_c_3) InVars {c=v_c_4} OutVars{c=v_c_3} AuxVars[] AssignedVars[c]" [2025-02-17 22:52:56,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:56,707 INFO L85 PathProgramCache]: Analyzing trace with hash 116734605, now seen corresponding path program 1 times [2025-02-17 22:52:56,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:56,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168734158] [2025-02-17 22:52:56,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:56,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:56,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:52:56,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:52:56,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:56,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:56,714 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:56,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:52:56,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:52:56,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:56,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:56,717 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:56,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:56,717 INFO L85 PathProgramCache]: Analyzing trace with hash 153982, now seen corresponding path program 2 times [2025-02-17 22:52:56,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:56,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810047758] [2025-02-17 22:52:56,717 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-17 22:52:56,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:56,719 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:56,720 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:56,720 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-17 22:52:56,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:56,720 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:56,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:56,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:56,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:56,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:56,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:56,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:56,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1282768014, now seen corresponding path program 1 times [2025-02-17 22:52:56,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:56,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295637621] [2025-02-17 22:52:56,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:56,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:56,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:52:56,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:52:56,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:56,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:56,727 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:56,728 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:52:56,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:52:56,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:56,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:56,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:56,759 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:56,759 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:56,760 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:56,760 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:56,760 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:52:56,760 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:56,760 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:56,760 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:56,760 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp6.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:52:56,760 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:56,760 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:56,760 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:56,763 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:56,783 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:56,783 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:52:56,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:56,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:56,785 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 22:52:56,786 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 22:52:56,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:56,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:56,801 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-02-17 22:52:56,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:56,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:56,803 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 22:52:56,804 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 22:52:56,804 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:56,804 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:56,834 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:52:56,834 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=-3}, {c=-3}, {c=7}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-02-17 22:52:56,838 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 22:52:56,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:56,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:56,840 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 22:52:56,841 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 22:52:56,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:56,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:56,856 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 22:52:56,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:56,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:56,858 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 22:52:56,859 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 22:52:56,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:56,859 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:56,919 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:52:56,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:56,923 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:56,923 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:56,923 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:56,923 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:56,923 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:52:56,923 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:56,923 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:56,923 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:56,923 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp6.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:52:56,923 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:56,923 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:56,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:56,926 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:56,947 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:56,947 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:52:56,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:56,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:56,949 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 22:52:56,950 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 22:52:56,951 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 22:52:56,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:56,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:56,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:56,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:56,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:56,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:56,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:56,966 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:52:56,972 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 22:52:56,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:56,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:56,974 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 22:52:56,978 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 22:52:56,979 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 22:52:56,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:56,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:56,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:56,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:56,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:56,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:56,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:56,992 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:52:56,996 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:52:56,996 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:52:56,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:56,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:56,998 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 22:52:57,000 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 22:52:57,001 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:52:57,001 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:52:57,001 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:52:57,001 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z2, x2) = 1*z2 - 1*x2 Supporting invariants [] [2025-02-17 22:52:57,007 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 22:52:57,009 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:52:57,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:57,035 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:52:57,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:52:57,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:57,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:57,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:52:57,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:57,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:57,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:57,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:57,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:57,060 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:52:57,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:57,092 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 22:52:57,093 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 22:52:57,093 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 127425 states and 690508 transitions. cyclomatic complexity: 570413 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 22:52:57,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-02-17 22:53:02,767 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 127425 states and 690508 transitions. cyclomatic complexity: 570413. 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 415217 states and 2415536 transitions. Complement of second has 6 states. [2025-02-17 22:53:02,767 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 22:53:02,768 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 22:53:02,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2025-02-17 22:53:02,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 134 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:53:02,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:53:02,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 134 transitions. Stem has 8 letters. Loop has 3 letters. [2025-02-17 22:53:02,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:53:02,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 134 transitions. Stem has 5 letters. Loop has 6 letters. [2025-02-17 22:53:02,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:53:02,769 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 415217 states and 2415536 transitions. [2025-02-17 22:53:11,331 INFO L131 ngComponentsAnalysis]: Automaton has 7508 accepting balls. 54982