/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/interleaved6.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:50:45,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:50:45,177 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:50:45,180 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:50:45,181 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:50:45,193 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:50:45,193 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:50:45,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:50:45,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:50:45,194 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:50:45,195 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:50:45,195 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:50:45,195 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:50:45,195 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:50:45,195 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:50:45,195 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:50:45,195 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:50:45,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:50:45,195 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:50:45,195 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:50:45,195 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:50:45,195 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:50:45,195 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:50:45,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:50:45,196 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:50:45,196 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:50:45,196 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:50:45,196 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:50:45,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:50:45,196 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:50:45,197 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:50:45,197 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:50:45,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:50:45,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:50:45,197 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:50:45,197 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:50:45,197 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> PARTIAL_ORDER_BA [2025-02-17 22:50:45,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:50:45,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:50:45,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:50:45,422 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:50:45,422 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:50:45,423 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/interleaved6.c.bpl [2025-02-17 22:50:45,423 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/interleaved6.c.bpl' [2025-02-17 22:50:45,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:50:45,441 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:50:45,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:50:45,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:50:45,441 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:50:45,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:45" (1/1) ... [2025-02-17 22:50:45,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:45" (1/1) ... [2025-02-17 22:50:45,456 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:50:45,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:50:45,457 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:50:45,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:50:45,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:50:45,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:45" (1/1) ... [2025-02-17 22:50:45,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:45" (1/1) ... [2025-02-17 22:50:45,463 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:45" (1/1) ... [2025-02-17 22:50:45,463 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:45" (1/1) ... [2025-02-17 22:50:45,464 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:45" (1/1) ... [2025-02-17 22:50:45,465 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:45" (1/1) ... [2025-02-17 22:50:45,467 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:45" (1/1) ... [2025-02-17 22:50:45,467 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:45" (1/1) ... [2025-02-17 22:50:45,468 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:45" (1/1) ... [2025-02-17 22:50:45,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:50:45,469 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:50:45,469 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:50:45,469 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:50:45,470 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:45" (1/1) ... [2025-02-17 22:50:45,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:45,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:45,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:45,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:50:45,516 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:50:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:50:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:50:45,516 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:50:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:50:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:50:45,517 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:50:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:50:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:50:45,517 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:50:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:50:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:50:45,517 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:50:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:50:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:50:45,517 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-02-17 22:50:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-17 22:50:45,519 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-17 22:50:45,519 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-02-17 22:50:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-02-17 22:50:45,519 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-02-17 22:50:45,520 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:50:45,559 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:50:45,560 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:50:45,677 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:50:45,677 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:50:45,699 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:50:45,700 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:50:45,700 INFO L201 PluginConnector]: Adding new model interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:50:45 BoogieIcfgContainer [2025-02-17 22:50:45,700 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:50:45,701 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:50:45,701 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:50:45,706 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:50:45,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:50:45,706 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:50:45" (1/2) ... [2025-02-17 22:50:45,707 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@460417ca and model type interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:50:45, skipping insertion in model container [2025-02-17 22:50:45,707 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:50:45,707 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:50:45" (2/2) ... [2025-02-17 22:50:45,708 INFO L363 chiAutomizerObserver]: Analyzing ICFG interleaved6.c.bpl [2025-02-17 22:50:45,761 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2025-02-17 22:50:45,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 62 transitions, 166 flow [2025-02-17 22:50:45,819 INFO L124 PetriNetUnfolderBase]: 6/50 cut-off events. [2025-02-17 22:50:45,820 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-17 22:50:45,825 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 136 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 22:50:45,825 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 62 transitions, 166 flow [2025-02-17 22:50:45,831 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 50 transitions, 136 flow [2025-02-17 22:50:45,837 WARN L98 AmpleReduction]: Starting ample reduction [2025-02-17 22:51:05,844 INFO L100 AmpleReduction]: Finished ample reduction [2025-02-17 22:51:05,844 INFO L101 AmpleReduction]: Number of pruned transitions: 132494, Number of non-trivial ample sets: 124227 [2025-02-17 22:51:05,844 INFO L103 AmpleReduction]: Number of trivial ample sets caused by loops: 112846 [2025-02-17 22:51:05,888 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:51:05,888 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:51:05,888 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:51:05,889 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:51:05,889 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:51:05,889 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:51:05,889 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:51:05,889 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:51:06,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 62177 states, 62176 states have (on average 3.818273932063819) internal successors, (237405), 62176 states have internal predecessors, (237405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:51:07,247 INFO L131 ngComponentsAnalysis]: Automaton has 1407 accepting balls. 45128 [2025-02-17 22:51:07,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:51:07,248 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:51:07,254 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:51:07,254 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:51:07,254 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:51:07,399 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 62177 states, 62176 states have (on average 3.818273932063819) internal successors, (237405), 62176 states have internal predecessors, (237405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:51:08,420 INFO L131 ngComponentsAnalysis]: Automaton has 1407 accepting balls. 45128 [2025-02-17 22:51:08,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:51:08,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:51:08,421 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:51:08,421 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:51:08,425 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L20: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f6_1 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0) (= v_x6_1 0)) InVars {f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[183] L20-->L41-1: Formula: (= v_thread1Thread1of1ForFork5_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork5_thidvar0=v_thread1Thread1of1ForFork5_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_thidvar0]" [2025-02-17 22:51:08,426 INFO L754 eck$LassoCheckResult]: Loop: "[131] L41-1-->L39: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[133] L39-->L40: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[134] L40-->L41: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[135] L41-->L41-1: Formula: (and (< 0 v_f1_6) (= v_f1_5 0)) InVars {f1=v_f1_6} OutVars{f1=v_f1_5} AuxVars[] AssignedVars[f1]" [2025-02-17 22:51:08,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:08,429 INFO L85 PathProgramCache]: Analyzing trace with hash 4368, now seen corresponding path program 1 times [2025-02-17 22:51:08,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:08,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454054727] [2025-02-17 22:51:08,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:08,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:08,477 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:51:08,483 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:51:08,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:08,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:08,484 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:51:08,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:51:08,487 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:51:08,487 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:08,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:08,498 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:51:08,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:08,503 INFO L85 PathProgramCache]: Analyzing trace with hash 4958244, now seen corresponding path program 1 times [2025-02-17 22:51:08,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:08,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259165764] [2025-02-17 22:51:08,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:08,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:08,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:51:08,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:51:08,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:08,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:08,512 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:51:08,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:51:08,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:51:08,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:08,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:08,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:51:08,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:08,520 INFO L85 PathProgramCache]: Analyzing trace with hash -256992845, now seen corresponding path program 1 times [2025-02-17 22:51:08,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:08,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695563679] [2025-02-17 22:51:08,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:08,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:08,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:51:08,527 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:51:08,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:08,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:51:08,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:51:08,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:51:08,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695563679] [2025-02-17 22:51:08,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695563679] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:51:08,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:51:08,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-17 22:51:08,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798101641] [2025-02-17 22:51:08,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:51:08,746 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:51:08,747 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:51:08,747 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:51:08,747 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:51:08,747 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:51:08,748 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:08,748 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:51:08,748 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:51:08,748 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:51:08,748 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:51:08,748 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:51:08,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:08,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:08,771 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:08,830 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:51:08,831 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:51:08,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:08,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:08,834 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 22:51:08,835 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 22:51:08,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:51:08,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:08,874 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:51:08,875 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f2=1} Honda state: {f2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:51:08,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-17 22:51:08,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:08,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:08,884 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 22:51:08,885 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 22:51:08,887 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:51:08,887 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:08,906 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 22:51:08,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:08,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:08,908 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 22:51:08,909 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 22:51:08,911 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:51:08,911 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:08,945 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:51:08,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-02-17 22:51:08,953 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:51:08,953 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:51:08,953 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:51:08,953 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:51:08,953 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:51:08,953 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:08,953 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:51:08,953 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:51:08,953 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:51:08,953 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:51:08,953 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:51:08,954 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:08,962 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:08,973 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:09,034 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:51:09,039 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:51:09,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:09,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:09,042 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 22:51:09,043 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 22:51:09,045 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:51:09,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:51:09,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:51:09,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:51:09,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:51:09,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:51:09,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:51:09,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:51:09,075 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:51:09,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-02-17 22:51:09,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:09,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:09,115 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:51:09,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-17 22:51:09,118 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:51:09,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:51:09,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:51:09,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:51:09,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:51:09,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:51:09,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:51:09,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:51:09,141 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:51:09,145 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:51:09,145 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:51:09,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:09,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:09,170 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:51:09,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-17 22:51:09,172 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:51:09,172 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:51:09,172 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:51:09,173 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f1) = 1*f1 Supporting invariants [] [2025-02-17 22:51:09,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-02-17 22:51:09,197 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:51:09,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:09,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:51:09,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:51:09,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:09,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:51:09,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:51:09,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:51:09,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:51:09,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:51:09,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:09,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:51:09,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:51:09,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:51:09,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:51:09,383 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-02-17 22:51:09,535 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 62177 states, 62176 states have (on average 3.818273932063819) internal successors, (237405), 62176 states have internal predecessors, (237405), 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 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:51:11,327 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 22:51:12,335 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 62177 states, 62176 states have (on average 3.818273932063819) internal successors, (237405), 62176 states have internal predecessors, (237405), 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 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 204313 states and 831630 transitions. Complement of second has 5 states. [2025-02-17 22:51:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-17 22:51:12,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:51:12,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2025-02-17 22:51:12,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 83 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:51:12,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:12,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 83 transitions. Stem has 6 letters. Loop has 4 letters. [2025-02-17 22:51:12,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:12,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 83 transitions. Stem has 2 letters. Loop has 8 letters. [2025-02-17 22:51:12,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:12,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 204313 states and 831630 transitions. [2025-02-17 22:51:16,941 INFO L131 ngComponentsAnalysis]: Automaton has 3009 accepting balls. 73088 [2025-02-17 22:51:19,773 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 204313 states to 176455 states and 731807 transitions. [2025-02-17 22:51:19,775 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 112358 [2025-02-17 22:51:20,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133878 [2025-02-17 22:51:20,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 176455 states and 731807 transitions. [2025-02-17 22:51:20,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:51:20,293 INFO L218 hiAutomatonCegarLoop]: Abstraction has 176455 states and 731807 transitions. [2025-02-17 22:51:20,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176455 states and 731807 transitions. [2025-02-17 22:51:25,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176455 to 133147. [2025-02-17 22:51:25,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133147 states, 133147 states have (on average 4.243024626916116) internal successors, (564946), 133146 states have internal predecessors, (564946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:51:26,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133147 states to 133147 states and 564946 transitions. [2025-02-17 22:51:26,661 INFO L240 hiAutomatonCegarLoop]: Abstraction has 133147 states and 564946 transitions. [2025-02-17 22:51:26,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:51:26,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:51:26,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:51:26,665 INFO L87 Difference]: Start difference. First operand 133147 states and 564946 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:51:28,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:51:28,480 INFO L93 Difference]: Finished difference Result 141875 states and 539617 transitions. [2025-02-17 22:51:28,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 141875 states and 539617 transitions. [2025-02-17 22:51:30,813 INFO L131 ngComponentsAnalysis]: Automaton has 2783 accepting balls. 78849 [2025-02-17 22:51:32,781 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 141875 states to 121621 states and 467254 transitions. [2025-02-17 22:51:32,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 121621 [2025-02-17 22:51:33,059 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 121621 [2025-02-17 22:51:33,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121621 states and 467254 transitions. [2025-02-17 22:51:33,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:51:33,278 INFO L218 hiAutomatonCegarLoop]: Abstraction has 121621 states and 467254 transitions. [2025-02-17 22:51:33,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121621 states and 467254 transitions. [2025-02-17 22:51:35,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121621 to 86128. [2025-02-17 22:51:35,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86128 states, 86128 states have (on average 3.963589076723017) internal successors, (341376), 86127 states have internal predecessors, (341376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:51:36,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86128 states to 86128 states and 341376 transitions. [2025-02-17 22:51:36,491 INFO L240 hiAutomatonCegarLoop]: Abstraction has 86128 states and 341376 transitions. [2025-02-17 22:51:36,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:51:36,492 INFO L432 stractBuchiCegarLoop]: Abstraction has 86128 states and 341376 transitions. [2025-02-17 22:51:36,492 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:51:36,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86128 states and 341376 transitions. [2025-02-17 22:51:37,584 INFO L131 ngComponentsAnalysis]: Automaton has 1573 accepting balls. 58502 [2025-02-17 22:51:37,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:51:37,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:51:37,585 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:51:37,585 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:51:37,585 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L20: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f6_1 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0) (= v_x6_1 0)) InVars {f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[183] L20-->L41-1: Formula: (= v_thread1Thread1of1ForFork5_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork5_thidvar0=v_thread1Thread1of1ForFork5_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_thidvar0]" "[130] L41-1-->thread1FINAL: Formula: (<= v_z_2 v_x1_4) InVars {x1=v_x1_4, z=v_z_2} OutVars{x1=v_x1_4, z=v_z_2} AuxVars[] AssignedVars[]" "[132] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[168] L20-1-->L52: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" [2025-02-17 22:51:37,586 INFO L754 eck$LassoCheckResult]: Loop: "[137] L52-->L54: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" "[139] L54-->L54-1: Formula: (and (< 0 v_f2_6) (= v_f2_5 0)) InVars {f2=v_f2_6} OutVars{f2=v_f2_5} AuxVars[] AssignedVars[f2]" "[140] L54-1-->L60: Formula: (= v_x2_3 (+ v_x2_4 1)) InVars {x2=v_x2_4} OutVars{x2=v_x2_3} AuxVars[] AssignedVars[x2]" "[141] L60-->L52: Formula: (= v_f3_1 1) InVars {} OutVars{f3=v_f3_1} AuxVars[] AssignedVars[f3]" [2025-02-17 22:51:37,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:37,586 INFO L85 PathProgramCache]: Analyzing trace with hash 130256278, now seen corresponding path program 1 times [2025-02-17 22:51:37,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:37,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312791376] [2025-02-17 22:51:37,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:37,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:37,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:51:37,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:51:37,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:37,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:37,592 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:51:37,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:51:37,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:51:37,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:37,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:37,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:51:37,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:37,596 INFO L85 PathProgramCache]: Analyzing trace with hash 5142948, now seen corresponding path program 1 times [2025-02-17 22:51:37,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:37,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764148436] [2025-02-17 22:51:37,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:37,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:37,598 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:51:37,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:51:37,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:37,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:37,605 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:51:37,606 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:51:37,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:51:37,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:37,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:51:37,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:51:37,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:37,613 INFO L85 PathProgramCache]: Analyzing trace with hash 968307897, now seen corresponding path program 1 times [2025-02-17 22:51:37,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:51:37,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681544922] [2025-02-17 22:51:37,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:51:37,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:51:37,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-17 22:51:37,618 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-17 22:51:37,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:37,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:51:37,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:51:37,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:51:37,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681544922] [2025-02-17 22:51:37,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681544922] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:51:37,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:51:37,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:51:37,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271207546] [2025-02-17 22:51:37,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:51:37,688 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:51:37,688 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:51:37,688 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:51:37,688 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:51:37,688 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:51:37,688 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:37,688 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:51:37,688 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:51:37,688 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:51:37,688 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:51:37,688 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:51:37,689 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:37,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:37,698 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:37,726 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:51:37,726 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:51:37,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:37,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:37,729 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:51:37,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-17 22:51:37,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:51:37,733 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:37,745 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:51:37,745 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f3=1} Honda state: {f3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:51:37,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-17 22:51:37,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:37,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:37,753 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:51:37,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-17 22:51:37,755 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:51:37,755 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:37,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-02-17 22:51:37,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:37,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:37,780 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:51:37,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-17 22:51:37,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:51:37,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:51:37,809 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:51:37,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-02-17 22:51:37,812 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:51:37,813 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:51:37,813 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:51:37,813 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:51:37,813 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:51:37,815 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:37,815 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:51:37,815 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:51:37,815 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:51:37,816 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:51:37,816 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:51:37,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:37,821 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:37,828 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:51:37,857 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:51:37,857 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:51:37,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:37,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:37,860 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:51:37,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-17 22:51:37,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:51:37,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:51:37,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:51:37,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:51:37,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:51:37,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:51:37,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:51:37,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:51:37,875 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:51:37,881 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 22:51:37,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:37,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:37,883 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:51:37,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-17 22:51:37,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:51:37,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:51:37,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:51:37,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:51:37,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:51:37,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:51:37,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:51:37,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:51:37,897 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:51:37,899 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:51:37,899 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:51:37,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:51:37,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:51:37,902 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:51:37,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-17 22:51:37,903 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:51:37,903 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:51:37,904 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:51:37,904 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f2) = 1*f2 Supporting invariants [] [2025-02-17 22:51:37,908 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 22:51:37,909 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:51:37,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:51:37,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:51:37,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:51:37,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:37,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:51:37,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:51:37,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:51:37,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:51:37,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:51:37,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:51:37,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:51:37,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:51:37,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:51:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:51:37,967 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:51:37,967 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 86128 states and 341376 transitions. cyclomatic complexity: 256821 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:51:38,305 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 22:51:41,890 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 86128 states and 341376 transitions. cyclomatic complexity: 256821. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 287342 states and 1195524 transitions. Complement of second has 5 states. [2025-02-17 22:51:41,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-17 22:51:41,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:51:41,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2025-02-17 22:51:41,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 89 transitions. Stem has 5 letters. Loop has 4 letters. [2025-02-17 22:51:41,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:41,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 89 transitions. Stem has 9 letters. Loop has 4 letters. [2025-02-17 22:51:41,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:41,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 89 transitions. Stem has 5 letters. Loop has 8 letters. [2025-02-17 22:51:41,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:51:41,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 287342 states and 1195524 transitions. [2025-02-17 22:51:46,881 INFO L131 ngComponentsAnalysis]: Automaton has 4807 accepting balls. 109129 [2025-02-17 22:51:50,692 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 287342 states to 256640 states and 1087594 transitions. [2025-02-17 22:51:50,692 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 167262 [2025-02-17 22:51:51,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 190547 [2025-02-17 22:51:51,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 256640 states and 1087594 transitions. [2025-02-17 22:51:51,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:51:51,302 INFO L218 hiAutomatonCegarLoop]: Abstraction has 256640 states and 1087594 transitions. [2025-02-17 22:51:51,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256640 states and 1087594 transitions. [2025-02-17 22:51:57,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256640 to 205774. [2025-02-17 22:51:57,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205774 states, 205774 states have (on average 4.307881462186671) internal successors, (886450), 205773 states have internal predecessors, (886450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:51:59,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205774 states to 205774 states and 886450 transitions. [2025-02-17 22:51:59,416 INFO L240 hiAutomatonCegarLoop]: Abstraction has 205774 states and 886450 transitions. [2025-02-17 22:51:59,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:51:59,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:51:59,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:51:59,417 INFO L87 Difference]: Start difference. First operand 205774 states and 886450 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 22:52:04,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:52:04,073 INFO L93 Difference]: Finished difference Result 304148 states and 1255218 transitions. [2025-02-17 22:52:04,073 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 304148 states and 1255218 transitions.