/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/pc6.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:52:08,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:52:08,115 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:52:08,118 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:52:08,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:52:08,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:52:08,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:52:08,140 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:52:08,140 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:52:08,140 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:52:08,140 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:52:08,140 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:52:08,140 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:52:08,140 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:52:08,140 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:52:08,141 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:52:08,141 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:52:08,141 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:52:08,141 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:52:08,141 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:52:08,141 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:52:08,141 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:52:08,141 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:52:08,141 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:52:08,141 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:52:08,141 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:52:08,141 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:52:08,141 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:52:08,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:52:08,143 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:52:08,144 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:52:08,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:52:08,144 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:52:08,144 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:52:08,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:52:08,144 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:52:08,144 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 22:52:08,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:52:08,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:52:08,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:52:08,389 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:52:08,389 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:52:08,390 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/pc6.c.bpl [2025-02-17 22:52:08,391 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/pc6.c.bpl' [2025-02-17 22:52:08,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:52:08,406 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:52:08,406 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:52:08,406 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:52:08,406 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:52:08,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:08" (1/1) ... [2025-02-17 22:52:08,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:08" (1/1) ... [2025-02-17 22:52:08,422 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:52:08,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:52:08,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:52:08,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:52:08,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:52:08,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:08" (1/1) ... [2025-02-17 22:52:08,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:08" (1/1) ... [2025-02-17 22:52:08,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:08" (1/1) ... [2025-02-17 22:52:08,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:08" (1/1) ... [2025-02-17 22:52:08,430 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:08" (1/1) ... [2025-02-17 22:52:08,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:08" (1/1) ... [2025-02-17 22:52:08,433 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:08" (1/1) ... [2025-02-17 22:52:08,433 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:08" (1/1) ... [2025-02-17 22:52:08,434 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:08" (1/1) ... [2025-02-17 22:52:08,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:52:08,435 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:52:08,435 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:52:08,435 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:52:08,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:08" (1/1) ... [2025-02-17 22:52:08,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:08,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:08,459 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 22:52:08,462 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 22:52:08,484 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:52:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:52:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:52:08,484 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:52:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:52:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:52:08,485 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:52:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:52:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:52:08,485 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:52:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:52:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:52:08,485 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:52:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:52:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:52:08,485 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-02-17 22:52:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-17 22:52:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-17 22:52:08,485 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-02-17 22:52:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-02-17 22:52:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-02-17 22:52:08,487 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 22:52:08,526 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:52:08,528 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:52:08,634 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:52:08,634 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:52:08,649 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:52:08,649 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:52:08,650 INFO L201 PluginConnector]: Adding new model pc6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:52:08 BoogieIcfgContainer [2025-02-17 22:52:08,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:52:08,652 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:52:08,652 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:52:08,656 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:52:08,656 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:52:08,656 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:08" (1/2) ... [2025-02-17 22:52:08,657 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72861b6d and model type pc6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:52:08, skipping insertion in model container [2025-02-17 22:52:08,658 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:52:08,658 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:52:08" (2/2) ... [2025-02-17 22:52:08,659 INFO L363 chiAutomizerObserver]: Analyzing ICFG pc6.c.bpl [2025-02-17 22:52:08,753 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2025-02-17 22:52:08,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 62 transitions, 166 flow [2025-02-17 22:52:08,825 INFO L124 PetriNetUnfolderBase]: 6/50 cut-off events. [2025-02-17 22:52:08,827 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-17 22:52:08,833 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 126 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 22:52:08,833 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 62 transitions, 166 flow [2025-02-17 22:52:08,837 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 50 transitions, 136 flow [2025-02-17 22:52:08,842 WARN L98 AmpleReduction]: Starting ample reduction [2025-02-17 22:52:22,620 INFO L100 AmpleReduction]: Finished ample reduction [2025-02-17 22:52:22,620 INFO L101 AmpleReduction]: Number of pruned transitions: 113450, Number of non-trivial ample sets: 163079 [2025-02-17 22:52:22,620 INFO L103 AmpleReduction]: Number of trivial ample sets caused by loops: 110193 [2025-02-17 22:52:22,665 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:52:22,666 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:52:22,666 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:52:22,666 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:52:22,666 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:52:22,666 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:52:22,666 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:52:22,666 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:52:22,834 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 64950 states, 64949 states have (on average 4.208902369551494) internal successors, (273364), 64949 states have internal predecessors, (273364), 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 22:52:24,579 INFO L131 ngComponentsAnalysis]: Automaton has 3174 accepting balls. 48234 [2025-02-17 22:52:24,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:52:24,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:52:24,586 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:52:24,586 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:52:24,587 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:52:24,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 64950 states, 64949 states have (on average 4.208902369551494) internal successors, (273364), 64949 states have internal predecessors, (273364), 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 22:52:25,953 INFO L131 ngComponentsAnalysis]: Automaton has 3174 accepting balls. 48234 [2025-02-17 22:52:25,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:52:25,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:52:25,955 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:52:25,955 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:52:25,959 INFO L752 eck$LassoCheckResult]: Stem: "[98] $Ultimate##0-->L17: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[165] L17-->L34: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" [2025-02-17 22:52:25,959 INFO L754 eck$LassoCheckResult]: Loop: "[122] 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[]" "[124] L36-->L37: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[126] 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 22:52:25,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:25,962 INFO L85 PathProgramCache]: Analyzing trace with hash 4164, now seen corresponding path program 1 times [2025-02-17 22:52:25,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:25,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074543628] [2025-02-17 22:52:25,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:25,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:26,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:52:26,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:52:26,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:26,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:26,015 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:26,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:52:26,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:52:26,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:26,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:26,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:26,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:26,037 INFO L85 PathProgramCache]: Analyzing trace with hash 151003, now seen corresponding path program 1 times [2025-02-17 22:52:26,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:26,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794201631] [2025-02-17 22:52:26,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:26,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:26,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:26,045 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:26,045 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:26,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:26,045 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:26,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:26,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:26,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:26,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:26,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:26,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:26,054 INFO L85 PathProgramCache]: Analyzing trace with hash 124170936, now seen corresponding path program 1 times [2025-02-17 22:52:26,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:26,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321830004] [2025-02-17 22:52:26,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:26,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:26,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:52:26,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:52:26,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:26,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:26,062 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:26,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:52:26,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:52:26,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:26,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:26,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:26,112 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:26,113 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:26,113 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:26,113 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:26,113 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:52:26,114 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:26,114 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:26,114 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:26,114 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:52:26,114 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:26,114 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:26,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:26,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:26,273 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:26,274 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:52:26,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:26,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:26,281 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 22:52:26,285 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 22:52:26,286 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:26,286 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:26,322 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 22:52:26,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:26,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:26,324 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 22:52:26,326 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 22:52:26,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:26,329 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:26,383 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:52:26,384 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 22:52:26,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-17 22:52:26,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:26,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:26,400 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 22:52:26,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:26,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:26,404 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 22:52:26,428 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 22:52:26,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:26,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:26,431 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 22:52:26,432 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 22:52:26,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:26,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:26,535 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:52:26,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-02-17 22:52:26,541 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:26,541 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:26,541 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:26,541 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:26,541 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:52:26,541 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:26,541 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:26,541 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:26,542 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:52:26,542 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:26,542 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:26,542 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:26,556 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:26,593 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:26,598 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:52:26,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:26,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:26,607 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 22:52:26,608 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 22:52:26,610 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 22:52:26,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:26,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:26,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:26,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:26,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:26,630 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:26,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:26,638 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:52:26,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-02-17 22:52:26,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:26,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:26,650 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 22:52:26,651 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 22:52:26,653 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 22:52:26,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:26,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:26,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:26,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:26,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:26,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:26,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:26,673 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:52:26,682 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:52:26,682 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:52:26,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:26,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:26,694 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 22:52:26,696 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:52:26,696 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:52:26,696 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:52:26,696 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z1, x1) = 1*z1 - 1*x1 Supporting invariants [] [2025-02-17 22:52:26,696 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 22:52:26,709 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 22:52:26,712 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:52:26,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:26,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:52:26,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:52:26,760 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:26,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:26,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:52:26,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:26,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:26,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:26,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:26,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:26,785 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:52:26,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:26,878 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 22:52:26,910 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 22:52:27,066 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 64950 states, 64949 states have (on average 4.208902369551494) internal successors, (273364), 64949 states have internal predecessors, (273364), 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 22:52:28,730 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 22:52:30,009 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 64950 states, 64949 states have (on average 4.208902369551494) internal successors, (273364), 64949 states have internal predecessors, (273364), 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 157757 states and 757303 transitions. Complement of second has 6 states. [2025-02-17 22:52:30,010 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 22:52:30,013 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 22:52:30,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2025-02-17 22:52:30,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 122 transitions. Stem has 2 letters. Loop has 3 letters. [2025-02-17 22:52:30,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:30,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 122 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:52:30,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:30,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 122 transitions. Stem has 2 letters. Loop has 6 letters. [2025-02-17 22:52:30,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:30,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157757 states and 757303 transitions. [2025-02-17 22:52:33,260 INFO L131 ngComponentsAnalysis]: Automaton has 4114 accepting balls. 44601 [2025-02-17 22:52:35,511 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157757 states to 119349 states and 634345 transitions. [2025-02-17 22:52:35,512 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63878 [2025-02-17 22:52:35,785 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82355 [2025-02-17 22:52:35,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119349 states and 634345 transitions. [2025-02-17 22:52:35,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:52:35,786 INFO L218 hiAutomatonCegarLoop]: Abstraction has 119349 states and 634345 transitions. [2025-02-17 22:52:35,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119349 states and 634345 transitions. [2025-02-17 22:52:39,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119349 to 100883. [2025-02-17 22:52:39,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100883 states, 100883 states have (on average 5.170524270689809) internal successors, (521618), 100882 states have internal predecessors, (521618), 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 22:52:40,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100883 states to 100883 states and 521618 transitions. [2025-02-17 22:52:40,223 INFO L240 hiAutomatonCegarLoop]: Abstraction has 100883 states and 521618 transitions. [2025-02-17 22:52:40,223 INFO L432 stractBuchiCegarLoop]: Abstraction has 100883 states and 521618 transitions. [2025-02-17 22:52:40,223 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:52:40,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100883 states and 521618 transitions. [2025-02-17 22:52:41,174 INFO L131 ngComponentsAnalysis]: Automaton has 4114 accepting balls. 44601 [2025-02-17 22:52:41,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:52:41,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:52:41,176 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:52:41,176 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:52:41,176 INFO L752 eck$LassoCheckResult]: Stem: "[98] $Ultimate##0-->L17: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[165] L17-->L34: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[168] L17-1-->L45: Formula: (and (= v_thread2Thread1of1ForFork3_thidvar0_2 2) (= v_thread2Thread1of1ForFork3_thidvar1_2 2)) InVars {} OutVars{thread2Thread1of1ForFork3_thidvar0=v_thread2Thread1of1ForFork3_thidvar0_2, thread2Thread1of1ForFork3_thidvar1=v_thread2Thread1of1ForFork3_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork3_thidvar0, thread2Thread1of1ForFork3_thidvar1]" [2025-02-17 22:52:41,176 INFO L754 eck$LassoCheckResult]: Loop: "[128] 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[]" "[130] L47-->L48: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" "[132] 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 22:52:41,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:41,177 INFO L85 PathProgramCache]: Analyzing trace with hash 129252, now seen corresponding path program 1 times [2025-02-17 22:52:41,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:41,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655552875] [2025-02-17 22:52:41,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:41,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:41,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:41,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:41,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:41,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:41,180 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:41,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:41,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:41,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:41,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:41,182 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:41,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:41,183 INFO L85 PathProgramCache]: Analyzing trace with hash 156961, now seen corresponding path program 1 times [2025-02-17 22:52:41,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:41,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730845671] [2025-02-17 22:52:41,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:41,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:41,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:41,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:41,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:41,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:41,185 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:41,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:41,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:41,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:41,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:41,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:41,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:41,191 INFO L85 PathProgramCache]: Analyzing trace with hash -444293794, now seen corresponding path program 1 times [2025-02-17 22:52:41,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:41,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353417641] [2025-02-17 22:52:41,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:41,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:41,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:52:41,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:52:41,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:41,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:41,194 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:41,194 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:52:41,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:52:41,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:41,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:41,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:41,212 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:41,212 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:41,212 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:41,212 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:41,212 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:52:41,212 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:41,212 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:41,212 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:41,212 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:52:41,212 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:41,212 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:41,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:41,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:41,234 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:41,234 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:52:41,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:41,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:41,236 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 22:52:41,237 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 22:52:41,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:41,240 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:41,256 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 22:52:41,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:41,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:41,258 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 22:52:41,259 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 22:52:41,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:41,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:41,317 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:52:41,320 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 22:52:41,321 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:41,321 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:41,321 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:41,321 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:41,321 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:52:41,321 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:41,321 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:41,321 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:41,321 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:52:41,321 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:41,321 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:41,322 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:41,327 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:41,345 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:41,345 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:52:41,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:41,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:41,347 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 22:52:41,349 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 22:52:41,350 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 22:52:41,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:41,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:41,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:41,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:41,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:41,478 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:41,478 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:41,480 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:52:41,482 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:52:41,482 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:52:41,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:41,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:41,484 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 22:52:41,485 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 22:52:41,490 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:52:41,490 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:52:41,490 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:52:41,490 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z2, x2) = 1*z2 - 1*x2 Supporting invariants [] [2025-02-17 22:52:41,497 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 22:52:41,498 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:52:41,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:41,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:41,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:41,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:41,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:41,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:52:41,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:41,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:41,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:41,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:41,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:41,550 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:52:41,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:41,588 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 22:52:41,589 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 22:52:41,589 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 100883 states and 521618 transitions. cyclomatic complexity: 426142 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:52:42,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-02-17 22:52:45,103 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 100883 states and 521618 transitions. cyclomatic complexity: 426142. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 254427 states and 1399364 transitions. Complement of second has 6 states. [2025-02-17 22:52:45,104 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 22:52:45,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:52:45,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2025-02-17 22:52:45,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 126 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-17 22:52:45,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:45,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 126 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-17 22:52:45,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:45,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 126 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-17 22:52:45,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:45,105 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 254427 states and 1399364 transitions. [2025-02-17 22:52:49,939 INFO L131 ngComponentsAnalysis]: Automaton has 4727 accepting balls. 36472 [2025-02-17 22:52:52,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 254427 states to 190670 states and 1080160 transitions. [2025-02-17 22:52:52,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 72027 [2025-02-17 22:52:53,490 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91060 [2025-02-17 22:52:53,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 190670 states and 1080160 transitions. [2025-02-17 22:52:53,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:52:53,490 INFO L218 hiAutomatonCegarLoop]: Abstraction has 190670 states and 1080160 transitions. [2025-02-17 22:52:53,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190670 states and 1080160 transitions. [2025-02-17 22:52:59,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190670 to 171664. [2025-02-17 22:52:59,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171664 states, 171664 states have (on average 5.73371236834747) internal successors, (984272), 171663 states have internal predecessors, (984272), 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 22:53:00,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171664 states to 171664 states and 984272 transitions. [2025-02-17 22:53:00,908 INFO L240 hiAutomatonCegarLoop]: Abstraction has 171664 states and 984272 transitions. [2025-02-17 22:53:00,908 INFO L432 stractBuchiCegarLoop]: Abstraction has 171664 states and 984272 transitions. [2025-02-17 22:53:00,908 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:53:00,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171664 states and 984272 transitions. [2025-02-17 22:53:02,336 INFO L131 ngComponentsAnalysis]: Automaton has 4727 accepting balls. 36472 [2025-02-17 22:53:02,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:53:02,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:53:02,338 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:53:02,338 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:53:02,339 INFO L752 eck$LassoCheckResult]: Stem: "[98] $Ultimate##0-->L17: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[165] L17-->L34: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[168] L17-1-->L45: Formula: (and (= v_thread2Thread1of1ForFork3_thidvar0_2 2) (= v_thread2Thread1of1ForFork3_thidvar1_2 2)) InVars {} OutVars{thread2Thread1of1ForFork3_thidvar0=v_thread2Thread1of1ForFork3_thidvar0_2, thread2Thread1of1ForFork3_thidvar1=v_thread2Thread1of1ForFork3_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork3_thidvar0, thread2Thread1of1ForFork3_thidvar1]" "[128] L45-->L47: Formula: (< v_x2_1 v_z2_1) InVars {z2=v_z2_1, x2=v_x2_1} OutVars{z2=v_z2_1, x2=v_x2_1} AuxVars[] AssignedVars[]" "[171] L18-->L56: Formula: (and (= v_thread3Thread1of1ForFork4_thidvar0_2 3) (= v_thread3Thread1of1ForFork4_thidvar1_2 3) (= v_thread3Thread1of1ForFork4_thidvar2_2 3)) InVars {} OutVars{thread3Thread1of1ForFork4_thidvar0=v_thread3Thread1of1ForFork4_thidvar0_2, thread3Thread1of1ForFork4_thidvar1=v_thread3Thread1of1ForFork4_thidvar1_2, thread3Thread1of1ForFork4_thidvar2=v_thread3Thread1of1ForFork4_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork4_thidvar0, thread3Thread1of1ForFork4_thidvar1, thread3Thread1of1ForFork4_thidvar2]" [2025-02-17 22:53:02,339 INFO L754 eck$LassoCheckResult]: Loop: "[134] L56-->L58: Formula: (< v_x3_1 v_z3_1) InVars {z3=v_z3_1, x3=v_x3_1} OutVars{z3=v_z3_1, x3=v_x3_1} AuxVars[] AssignedVars[]" "[136] L58-->L59: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" "[138] L59-->L56: Formula: (= v_c_5 (+ v_c_6 1)) InVars {c=v_c_6} OutVars{c=v_c_5} AuxVars[] AssignedVars[c]" [2025-02-17 22:53:02,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:53:02,339 INFO L85 PathProgramCache]: Analyzing trace with hash 124215311, now seen corresponding path program 1 times [2025-02-17 22:53:02,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:53:02,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29248599] [2025-02-17 22:53:02,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:53:02,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:53:02,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:53:02,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:53:02,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:53:02,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:53:02,343 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:53:02,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:53:02,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:53:02,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:53:02,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:53:02,347 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:53:02,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:53:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash 162919, now seen corresponding path program 1 times [2025-02-17 22:53:02,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:53:02,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977925892] [2025-02-17 22:53:02,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:53:02,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:53:02,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:53:02,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:53:02,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:53:02,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:53:02,351 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:53:02,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:53:02,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:53:02,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:53:02,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:53:02,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:53:02,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:53:02,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1763346023, now seen corresponding path program 1 times [2025-02-17 22:53:02,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:53:02,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767631964] [2025-02-17 22:53:02,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:53:02,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:53:02,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:53:02,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:53:02,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:53:02,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:53:02,357 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:53:02,358 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:53:02,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:53:02,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:53:02,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:53:02,361 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:53:02,378 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:53:02,378 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:53:02,378 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:53:02,378 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:53:02,378 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:53:02,378 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:53:02,378 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:53:02,378 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:53:02,378 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:53:02,378 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:53:02,378 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:53:02,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:53:02,381 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:53:02,404 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:53:02,404 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:53:02,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:53:02,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:53:02,406 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 22:53:02,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:53:02,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:53:02,536 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 22:53:02,548 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 22:53:02,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:53:02,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:53:02,550 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 22:53:02,551 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 22:53:02,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:53:02,552 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:53:02,582 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:53:02,582 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 22:53:02,586 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 22:53:02,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:53:02,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:53:02,588 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 22:53:02,589 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 22:53:02,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:53:02,590 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:53:02,605 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 22:53:02,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:53:02,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:53:02,607 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 22:53:02,607 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 22:53:02,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:53:02,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:53:02,665 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:53:02,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-02-17 22:53:02,668 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:53:02,669 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:53:02,669 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:53:02,669 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:53:02,669 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:53:02,669 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:53:02,669 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:53:02,669 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:53:02,669 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:53:02,669 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:53:02,669 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:53:02,669 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:53:02,674 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:53:02,692 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:53:02,692 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:53:02,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:53:02,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:53:02,695 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 22:53:02,696 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 22:53:02,697 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 22:53:02,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:53:02,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:53:02,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:53:02,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:53:02,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:53:02,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:53:02,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:53:02,710 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:53:02,715 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 22:53:02,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:53:02,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:53:02,717 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 22:53:02,720 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 22:53:02,720 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 22:53:02,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:53:02,730 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:53:02,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:53:02,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:53:02,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:53:02,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:53:02,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:53:02,732 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:53:02,735 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:53:02,735 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:53:02,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:53:02,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:53:02,737 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 22:53:02,738 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 22:53:02,739 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:53:02,739 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:53:02,739 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:53:02,739 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x3, z3) = -1*x3 + 1*z3 Supporting invariants [] [2025-02-17 22:53:02,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-02-17 22:53:02,744 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:53:02,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:53:02,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:53:02,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:53:02,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:53:02,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:53:02,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:53:02,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:53:02,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:53:02,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:53:02,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:53:02,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:53:02,771 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:53:02,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:53:02,793 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 22:53:02,793 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 22:53:02,793 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 171664 states and 984272 transitions. cyclomatic complexity: 821275 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 22:53:03,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-02-17 22:53:09,508 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 171664 states and 984272 transitions. cyclomatic complexity: 821275. 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 466989 states and 2748272 transitions. Complement of second has 6 states. [2025-02-17 22:53:09,509 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 22:53:09,509 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 22:53:09,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2025-02-17 22:53:09,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 132 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:53:09,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:53:09,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 132 transitions. Stem has 8 letters. Loop has 3 letters. [2025-02-17 22:53:09,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:53:09,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 132 transitions. Stem has 5 letters. Loop has 6 letters. [2025-02-17 22:53:09,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:53:09,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 466989 states and 2748272 transitions. [2025-02-17 22:53:18,713 INFO L131 ngComponentsAnalysis]: Automaton has 5637 accepting balls. 31061 [2025-02-17 22:53:25,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 466989 states to 339425 states and 2045850 transitions. [2025-02-17 22:53:25,537 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94119 [2025-02-17 22:53:25,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 110853 [2025-02-17 22:53:25,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 339425 states and 2045850 transitions. [2025-02-17 22:53:25,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:53:25,974 INFO L218 hiAutomatonCegarLoop]: Abstraction has 339425 states and 2045850 transitions. [2025-02-17 22:53:26,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339425 states and 2045850 transitions. [2025-02-17 22:53:34,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339425 to 313258. [2025-02-17 22:53:35,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313258 states, 313258 states have (on average 6.084687382285528) internal successors, (1906077), 313257 states have internal predecessors, (1906077), 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)