/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/gemcutter/Termination.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/4_plus_thr/interleaved5.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 18:43:49,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 18:43:49,800 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 18:43:49,804 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 18:43:49,804 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 18:43:49,804 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 18:43:49,804 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 18:43:49,825 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 18:43:49,826 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 18:43:49,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 18:43:49,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 18:43:49,826 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 18:43:49,826 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 18:43:49,826 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 18:43:49,826 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 18:43:49,826 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 18:43:49,826 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 18:43:49,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 18:43:49,827 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 18:43:49,828 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 18:43:49,828 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 18:43:49,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:43:49,828 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 18:43:49,828 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 18:43:49,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 18:43:49,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 18:43:49,828 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 18:43:49,828 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 18:43:49,828 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 18:43:50,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 18:43:50,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 18:43:50,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 18:43:50,143 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 18:43:50,143 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 18:43:50,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/interleaved5.c.bpl [2025-04-26 18:43:50,148 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/interleaved5.c.bpl' [2025-04-26 18:43:50,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 18:43:50,176 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 18:43:50,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 18:43:50,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 18:43:50,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 18:43:50,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:50" (1/1) ... [2025-04-26 18:43:50,208 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:50" (1/1) ... [2025-04-26 18:43:50,216 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 18:43:50,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 18:43:50,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 18:43:50,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 18:43:50,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 18:43:50,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:50" (1/1) ... [2025-04-26 18:43:50,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:50" (1/1) ... [2025-04-26 18:43:50,227 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:50" (1/1) ... [2025-04-26 18:43:50,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:50" (1/1) ... [2025-04-26 18:43:50,229 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:50" (1/1) ... [2025-04-26 18:43:50,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:50" (1/1) ... [2025-04-26 18:43:50,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:50" (1/1) ... [2025-04-26 18:43:50,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:50" (1/1) ... [2025-04-26 18:43:50,239 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:50" (1/1) ... [2025-04-26 18:43:50,247 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 18:43:50,247 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 18:43:50,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 18:43:50,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 18:43:50,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:50" (1/1) ... [2025-04-26 18:43:50,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:43:50,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:50,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-26 18:43:50,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-26 18:43:50,302 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 18:43:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 18:43:50,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 18:43:50,302 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 18:43:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 18:43:50,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 18:43:50,302 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 18:43:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 18:43:50,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 18:43:50,302 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 18:43:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 18:43:50,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 18:43:50,302 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-04-26 18:43:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 18:43:50,303 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 18:43:50,303 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-04-26 18:43:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-26 18:43:50,303 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-26 18:43:50,305 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 18:43:50,352 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 18:43:50,353 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 18:43:50,477 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 18:43:50,478 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 18:43:50,500 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 18:43:50,500 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 18:43:50,500 INFO L201 PluginConnector]: Adding new model interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:43:50 BoogieIcfgContainer [2025-04-26 18:43:50,500 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 18:43:50,501 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 18:43:50,501 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 18:43:50,506 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 18:43:50,507 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:43:50,507 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:50" (1/2) ... [2025-04-26 18:43:50,508 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a221d06 and model type interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 06:43:50, skipping insertion in model container [2025-04-26 18:43:50,508 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:43:50,508 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:43:50" (2/2) ... [2025-04-26 18:43:50,509 INFO L376 chiAutomizerObserver]: Analyzing ICFG interleaved5.c.bpl [2025-04-26 18:43:50,590 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2025-04-26 18:43:50,629 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 18:43:50,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 18:43:50,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:50,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-26 18:43:50,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-26 18:43:50,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 52 transitions, 139 flow [2025-04-26 18:43:50,704 INFO L116 PetriNetUnfolderBase]: 5/42 cut-off events. [2025-04-26 18:43:50,706 INFO L117 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-04-26 18:43:50,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 42 events. 5/42 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 102 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2025-04-26 18:43:50,713 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 52 transitions, 139 flow [2025-04-26 18:43:50,716 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 42 transitions, 114 flow [2025-04-26 18:43:50,716 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 53 places, 42 transitions, 114 flow [2025-04-26 18:43:50,717 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 42 transitions, 114 flow [2025-04-26 18:43:51,184 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 10888 states, 10887 states have (on average 4.942775787636631) internal successors, (in total 53812), 10887 states have internal predecessors, (53812), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:51,235 INFO L171 actionProvider$Eager]: Constructed initial Büchi automaton abstraction (from Petri net) that has 10888 states, 10887 states have (on average 4.942775787636631) internal successors, (in total 53812), 10887 states have internal predecessors, (53812), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:51,238 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 18:43:51,405 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 21135#[L24, L95, L80-1, L71]true [2025-04-26 18:43:51,562 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 9203#[thread1EXIT, L56, L65, L21, thread4EXIT]true [2025-04-26 18:43:51,570 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 20393#[L80, L65-1, L56, thread5EXIT, L23]true [2025-04-26 18:43:51,579 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 18861#[L80, L65-1, L56, L95, L23]true [2025-04-26 18:43:51,580 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 21727#[L86, L56, L95, L23, L71]true [2025-04-26 18:43:51,583 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 9387#[L65-1, thread1EXIT, L56, L80, L21]true [2025-04-26 18:43:51,664 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 20033#[L22, L37, L80-1, thread2EXIT, L95, L71]true [2025-04-26 18:43:51,665 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 21779#[L22, L101, L37, thread2EXIT, L86, L71]true [2025-04-26 18:43:51,698 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 20871#[L36, L22, L101, L50, thread3EXIT, L86]true [2025-04-26 18:43:51,722 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 13737#[L36, L22, thread4EXIT, L50, thread5EXIT, L65]true [2025-04-26 18:43:51,728 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 19027#[L36, L22, thread4EXIT, L101, L50-1, L65]true [2025-04-26 18:43:51,760 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 13395#[L36, L22, L80, thread5EXIT, L50-1, L65]true [2025-04-26 18:43:51,761 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 20391#[L36, L22, L56, L80, thread5EXIT, L71]true [2025-04-26 18:43:51,773 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 16759#[L36, L22, L101, L80, L50-1, L65]true [2025-04-26 18:43:51,782 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 20923#[L22, L50, L37, L95, L86, L71]true [2025-04-26 18:43:51,798 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 16227#[L36, L22, L56, L65-1, L80, L95]true [2025-04-26 18:43:51,804 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 9393#[L36, L56, L80, L65-1, L21]true [2025-04-26 18:43:51,805 WARN L140 AmpleReduction]: Number of pruned transitions: 9873 [2025-04-26 18:43:51,806 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 17 [2025-04-26 18:43:51,806 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 609 [2025-04-26 18:43:51,806 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:68 [2025-04-26 18:43:51,806 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:3242 [2025-04-26 18:43:51,806 WARN L145 AmpleReduction]: Times succ was already a loop node:270 [2025-04-26 18:43:51,806 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:1249 [2025-04-26 18:43:51,806 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 18:43:51,815 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 3903 states, 3902 states have (on average 1.739364428498206) internal successors, (in total 6787), 3902 states have internal predecessors, (6787), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:51,822 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 18:43:51,822 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 18:43:51,822 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 18:43:51,822 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 18:43:51,822 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 18:43:51,822 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 18:43:51,822 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 18:43:51,822 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 18:43:51,829 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 3903 states, 3902 states have (on average 1.739364428498206) internal successors, (in total 6787), 3902 states have internal predecessors, (6787), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:51,908 INFO L131 ngComponentsAnalysis]: Automaton has 289 accepting balls. 3123 [2025-04-26 18:43:51,909 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:43:51,909 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:43:51,912 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 18:43:51,912 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:43:51,912 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 18:43:51,917 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 3903 states, 3902 states have (on average 1.739364428498206) internal successors, (in total 6787), 3902 states have internal predecessors, (6787), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:51,953 INFO L131 ngComponentsAnalysis]: Automaton has 289 accepting balls. 3123 [2025-04-26 18:43:51,953 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:43:51,953 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:43:51,954 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 18:43:51,954 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:43:51,958 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L18: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[153] L18-->L37-1: Formula: (= v_thread1Thread1of1ForFork4_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork4_thidvar0=v_thread1Thread1of1ForFork4_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork4_thidvar0]" [2025-04-26 18:43:51,958 INFO L754 eck$LassoCheckResult]: Loop: "[110] L37-1-->L35: 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[]" "[112] L35-->L36: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[113] L36-->L37: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[114] L37-->L37-1: Formula: (and (< 0 v_f1_6) (= v_f1_5 0)) InVars {f1=v_f1_6} OutVars{f1=v_f1_5} AuxVars[] AssignedVars[f1]" [2025-04-26 18:43:51,962 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:51,962 INFO L85 PathProgramCache]: Analyzing trace with hash 4338, now seen corresponding path program 1 times [2025-04-26 18:43:51,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:51,967 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941674227] [2025-04-26 18:43:51,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:51,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:52,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:43:52,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:43:52,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:52,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:52,020 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:43:52,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:43:52,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:43:52,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:52,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:52,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:43:52,045 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:52,045 INFO L85 PathProgramCache]: Analyzing trace with hash 4311780, now seen corresponding path program 1 times [2025-04-26 18:43:52,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:52,045 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228378887] [2025-04-26 18:43:52,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:52,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:52,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:52,056 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:52,056 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:52,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:52,056 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:43:52,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:52,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:52,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:52,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:52,064 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:43:52,065 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:52,065 INFO L85 PathProgramCache]: Analyzing trace with hash -285344939, now seen corresponding path program 1 times [2025-04-26 18:43:52,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:52,065 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313076780] [2025-04-26 18:43:52,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:52,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:52,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:43:52,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:43:52,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:52,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:52,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:43:52,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:43:52,152 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313076780] [2025-04-26 18:43:52,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313076780] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:43:52,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:43:52,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-26 18:43:52,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661788397] [2025-04-26 18:43:52,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:43:52,226 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:43:52,234 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:43:52,234 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:43:52,234 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:43:52,234 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:43:52,234 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:52,234 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:43:52,235 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:43:52,235 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration1_Loop [2025-04-26 18:43:52,235 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:43:52,235 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:43:52,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:52,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:52,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:52,359 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:43:52,360 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:43:52,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:52,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:52,366 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) [2025-04-26 18:43:52,367 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 [2025-04-26 18:43:52,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:43:52,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:52,384 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:43:52,385 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f2=1} Honda state: {f2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:43:52,393 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 [2025-04-26 18:43:52,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:52,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:52,399 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) [2025-04-26 18:43:52,401 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 [2025-04-26 18:43:52,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:43:52,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:52,423 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 [2025-04-26 18:43:52,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:52,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:52,425 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) [2025-04-26 18:43:52,427 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 [2025-04-26 18:43:52,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:43:52,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:52,501 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:43:52,506 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 [2025-04-26 18:43:52,506 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:43:52,506 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:43:52,506 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:43:52,506 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:43:52,506 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:43:52,507 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:52,507 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:43:52,507 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:43:52,507 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration1_Loop [2025-04-26 18:43:52,507 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:43:52,507 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:43:52,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:52,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:52,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:52,563 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:43:52,566 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:43:52,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:52,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:52,568 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) [2025-04-26 18:43:52,572 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 [2025-04-26 18:43:52,572 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 [2025-04-26 18:43:52,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:43:52,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:43:52,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:43:52,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:43:52,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:43:52,589 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:43:52,589 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:43:52,592 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:43:52,596 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 18:43:52,597 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:43:52,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:52,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:52,601 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) [2025-04-26 18:43:52,602 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 [2025-04-26 18:43:52,603 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:43:52,605 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 18:43:52,607 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 [2025-04-26 18:43:52,607 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:43:52,608 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:43:52,608 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, z) = -1*x1 + 1*z Supporting invariants [] [2025-04-26 18:43:52,615 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 [2025-04-26 18:43:52,618 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:43:52,648 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:52,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:43:52,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:43:52,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:52,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:52,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:43:52,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:43:52,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:52,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:52,684 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:52,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:52,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:43:52,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:43:52,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:43:52,739 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 [2025-04-26 18:43:52,745 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 3903 states, 3902 states have (on average 1.739364428498206) internal successors, (in total 6787), 3902 states have internal predecessors, (6787), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (in total 6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:52,924 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 3903 states, 3902 states have (on average 1.739364428498206) internal successors, (in total 6787), 3902 states have internal predecessors, (6787), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (in total 6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 8149 states and 14437 transitions. Complement of second has 6 states. [2025-04-26 18:43:52,925 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 18:43:52,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (in total 6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:52,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2025-04-26 18:43:52,934 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 18:43:52,936 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:52,936 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 6 letters. Loop has 4 letters. [2025-04-26 18:43:52,936 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:52,936 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 2 letters. Loop has 8 letters. [2025-04-26 18:43:52,936 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:52,936 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8149 states and 14437 transitions. [2025-04-26 18:43:53,006 INFO L131 ngComponentsAnalysis]: Automaton has 259 accepting balls. 2255 [2025-04-26 18:43:53,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8149 states to 5556 states and 9656 transitions. [2025-04-26 18:43:53,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3328 [2025-04-26 18:43:53,082 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3713 [2025-04-26 18:43:53,083 INFO L74 IsDeterministic]: Start isDeterministic. Operand 5556 states and 9656 transitions. [2025-04-26 18:43:53,083 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:43:53,083 INFO L218 hiAutomatonCegarLoop]: Abstraction has 5556 states and 9656 transitions. [2025-04-26 18:43:53,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5556 states and 9656 transitions. [2025-04-26 18:43:53,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5556 to 5257. [2025-04-26 18:43:53,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5257 states have (on average 1.7276012935134106) internal successors, (in total 9082), 5256 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:53,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 9082 transitions. [2025-04-26 18:43:53,259 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5257 states and 9082 transitions. [2025-04-26 18:43:53,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:43:53,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 18:43:53,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 18:43:53,261 INFO L87 Difference]: Start difference. First operand 5257 states and 9082 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (in total 6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:53,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:43:53,333 INFO L93 Difference]: Finished difference Result 7185 states and 11685 transitions. [2025-04-26 18:43:53,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7185 states and 11685 transitions. [2025-04-26 18:43:53,404 INFO L131 ngComponentsAnalysis]: Automaton has 475 accepting balls. 3581 [2025-04-26 18:43:53,437 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7185 states to 6629 states and 10842 transitions. [2025-04-26 18:43:53,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4999 [2025-04-26 18:43:53,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5103 [2025-04-26 18:43:53,443 INFO L74 IsDeterministic]: Start isDeterministic. Operand 6629 states and 10842 transitions. [2025-04-26 18:43:53,446 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:43:53,446 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6629 states and 10842 transitions. [2025-04-26 18:43:53,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6629 states and 10842 transitions. [2025-04-26 18:43:53,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6629 to 5155. [2025-04-26 18:43:53,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5155 states have (on average 1.6073714839961202) internal successors, (in total 8286), 5154 states have internal predecessors, (8286), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:53,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 8286 transitions. [2025-04-26 18:43:53,558 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5155 states and 8286 transitions. [2025-04-26 18:43:53,560 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 18:43:53,560 INFO L438 stractBuchiCegarLoop]: Abstraction has 5155 states and 8286 transitions. [2025-04-26 18:43:53,560 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 18:43:53,560 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5155 states and 8286 transitions. [2025-04-26 18:43:53,583 INFO L131 ngComponentsAnalysis]: Automaton has 284 accepting balls. 2444 [2025-04-26 18:43:53,583 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:43:53,583 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:43:53,584 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 18:43:53,584 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:43:53,585 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L18: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[153] L18-->L37-1: Formula: (= v_thread1Thread1of1ForFork4_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork4_thidvar0=v_thread1Thread1of1ForFork4_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork4_thidvar0]" "[109] L37-1-->thread1FINAL: Formula: (<= v_z_2 v_x1_4) InVars {x1=v_x1_4, z=v_z_2} OutVars{x1=v_x1_4, z=v_z_2} AuxVars[] AssignedVars[]" "[111] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[141] L18-1-->L48: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" [2025-04-26 18:43:53,586 INFO L754 eck$LassoCheckResult]: Loop: "[116] L48-->L50: 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[]" "[118] L50-->L50-1: Formula: (and (< 0 v_f2_6) (= v_f2_5 0)) InVars {f2=v_f2_6} OutVars{f2=v_f2_5} AuxVars[] AssignedVars[f2]" "[119] L50-1-->L56: Formula: (= v_x2_3 (+ v_x2_4 1)) InVars {x2=v_x2_4} OutVars{x2=v_x2_3} AuxVars[] AssignedVars[x2]" "[120] L56-->L48: Formula: (= v_f3_1 1) InVars {} OutVars{f3=v_f3_1} AuxVars[] AssignedVars[f3]" [2025-04-26 18:43:53,586 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:53,586 INFO L85 PathProgramCache]: Analyzing trace with hash 129341689, now seen corresponding path program 1 times [2025-04-26 18:43:53,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:53,587 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481607272] [2025-04-26 18:43:53,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:53,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:53,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:43:53,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:43:53,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:53,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:53,592 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:43:53,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:43:53,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:43:53,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:53,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:53,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:43:53,602 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:53,602 INFO L85 PathProgramCache]: Analyzing trace with hash 4496484, now seen corresponding path program 1 times [2025-04-26 18:43:53,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:53,602 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267109505] [2025-04-26 18:43:53,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:53,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:53,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:53,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:53,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:53,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:53,607 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:43:53,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:53,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:53,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:53,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:53,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:43:53,610 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:53,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1860896420, now seen corresponding path program 1 times [2025-04-26 18:43:53,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:53,610 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669482955] [2025-04-26 18:43:53,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:53,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:53,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 18:43:53,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 18:43:53,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:53,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:53,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:43:53,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:43:53,645 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669482955] [2025-04-26 18:43:53,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669482955] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:43:53,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:43:53,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 18:43:53,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273250062] [2025-04-26 18:43:53,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:43:53,675 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:43:53,675 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:43:53,675 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:43:53,675 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:43:53,675 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:43:53,675 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:53,675 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:43:53,675 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:43:53,675 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration2_Loop [2025-04-26 18:43:53,675 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:43:53,675 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:43:53,676 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:53,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:53,683 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:53,719 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:43:53,719 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:43:53,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:53,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:53,723 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) [2025-04-26 18:43:53,724 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 [2025-04-26 18:43:53,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:43:53,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:53,737 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:43:53,737 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f3=1} Honda state: {f3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:43:53,746 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 [2025-04-26 18:43:53,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:53,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:53,748 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) [2025-04-26 18:43:53,750 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 [2025-04-26 18:43:53,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:43:53,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:53,768 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 [2025-04-26 18:43:53,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:53,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:53,770 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) [2025-04-26 18:43:53,772 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 [2025-04-26 18:43:53,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:43:53,773 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:53,798 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:43:53,803 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 [2025-04-26 18:43:53,803 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:43:53,803 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:43:53,803 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:43:53,803 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:43:53,803 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:43:53,803 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:53,803 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:43:53,803 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:43:53,803 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration2_Loop [2025-04-26 18:43:53,803 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:43:53,803 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:43:53,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:53,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:53,813 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:53,847 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:43:53,847 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:43:53,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:53,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:53,850 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) [2025-04-26 18:43:53,851 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 [2025-04-26 18:43:53,853 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 [2025-04-26 18:43:53,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:43:53,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:43:53,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:43:53,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:43:53,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:43:53,864 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:43:53,864 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:43:53,867 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:43:53,871 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:43:53,871 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:43:53,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:53,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:53,874 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) [2025-04-26 18:43:53,875 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 [2025-04-26 18:43:53,876 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:43:53,879 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 [2025-04-26 18:43:53,880 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:43:53,881 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:43:53,881 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(f2) = 1*f2 Supporting invariants [] [2025-04-26 18:43:53,890 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 [2025-04-26 18:43:53,891 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:43:53,905 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:53,911 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:43:53,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:43:53,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:53,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:53,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:43:53,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:43:53,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:53,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:53,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:53,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:53,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:43:53,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:43:53,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:43:53,947 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 [2025-04-26 18:43:53,947 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5155 states and 8286 transitions. cyclomatic complexity: 3463 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (in total 9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:54,116 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5155 states and 8286 transitions. cyclomatic complexity: 3463. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (in total 9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 14392 states and 23133 transitions. Complement of second has 5 states. [2025-04-26 18:43:54,117 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 18:43:54,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (in total 9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:54,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2025-04-26 18:43:54,118 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 65 transitions. Stem has 5 letters. Loop has 4 letters. [2025-04-26 18:43:54,118 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:54,118 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 65 transitions. Stem has 9 letters. Loop has 4 letters. [2025-04-26 18:43:54,119 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:54,119 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 65 transitions. Stem has 5 letters. Loop has 8 letters. [2025-04-26 18:43:54,119 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:54,119 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14392 states and 23133 transitions. [2025-04-26 18:43:54,208 INFO L131 ngComponentsAnalysis]: Automaton has 464 accepting balls. 3464 [2025-04-26 18:43:54,290 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14392 states to 12201 states and 19571 transitions. [2025-04-26 18:43:54,290 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6034 [2025-04-26 18:43:54,300 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6451 [2025-04-26 18:43:54,301 INFO L74 IsDeterministic]: Start isDeterministic. Operand 12201 states and 19571 transitions. [2025-04-26 18:43:54,301 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:43:54,301 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12201 states and 19571 transitions. [2025-04-26 18:43:54,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12201 states and 19571 transitions. [2025-04-26 18:43:54,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12201 to 10331. [2025-04-26 18:43:54,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10331 states, 10331 states have (on average 1.621914625883264) internal successors, (in total 16756), 10330 states have internal predecessors, (16756), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:54,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10331 states to 10331 states and 16756 transitions. [2025-04-26 18:43:54,543 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10331 states and 16756 transitions. [2025-04-26 18:43:54,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:43:54,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 18:43:54,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 18:43:54,543 INFO L87 Difference]: Start difference. First operand 10331 states and 16756 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (in total 9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:54,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:43:54,652 INFO L93 Difference]: Finished difference Result 12709 states and 19262 transitions. [2025-04-26 18:43:54,653 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12709 states and 19262 transitions. [2025-04-26 18:43:54,727 INFO L131 ngComponentsAnalysis]: Automaton has 451 accepting balls. 2769 [2025-04-26 18:43:54,776 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12709 states to 10117 states and 15528 transitions. [2025-04-26 18:43:54,777 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5912 [2025-04-26 18:43:54,785 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6081 [2025-04-26 18:43:54,785 INFO L74 IsDeterministic]: Start isDeterministic. Operand 10117 states and 15528 transitions. [2025-04-26 18:43:54,786 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:43:54,786 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10117 states and 15528 transitions. [2025-04-26 18:43:54,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10117 states and 15528 transitions. [2025-04-26 18:43:54,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10117 to 6181. [2025-04-26 18:43:54,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6181 states, 6181 states have (on average 1.551690664940948) internal successors, (in total 9591), 6180 states have internal predecessors, (9591), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:54,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6181 states to 6181 states and 9591 transitions. [2025-04-26 18:43:54,938 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6181 states and 9591 transitions. [2025-04-26 18:43:54,939 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 18:43:54,939 INFO L438 stractBuchiCegarLoop]: Abstraction has 6181 states and 9591 transitions. [2025-04-26 18:43:54,939 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 18:43:54,939 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6181 states and 9591 transitions. [2025-04-26 18:43:54,969 INFO L131 ngComponentsAnalysis]: Automaton has 246 accepting balls. 1531 [2025-04-26 18:43:54,969 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:43:54,969 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:43:54,969 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 18:43:54,969 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:43:54,970 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L18: Formula: (and (= v_f3_4 0) (= v_f2_4 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)) InVars {f4=v_f4_2, 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{f4=v_f4_2, 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[]" "[153] L18-->L37-1: Formula: (= v_thread1Thread1of1ForFork4_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork4_thidvar0=v_thread1Thread1of1ForFork4_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork4_thidvar0]" "[109] L37-1-->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[]" "[111] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[141] L18-1-->L48: 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]" "[115] L48-->thread2FINAL: Formula: (<= v_z_3 v_x2_1) InVars {x2=v_x2_1, z=v_z_3} OutVars{x2=v_x2_1, z=v_z_3} AuxVars[] AssignedVars[]" "[117] thread2FINAL-->thread2EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[144] L19-->L63: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" [2025-04-26 18:43:54,970 INFO L754 eck$LassoCheckResult]: Loop: "[122] L63-->L65: Formula: (< v_x3_1 v_z_5) InVars {x3=v_x3_1, z=v_z_5} OutVars{x3=v_x3_1, z=v_z_5} AuxVars[] AssignedVars[]" "[124] L65-->L65-1: Formula: (and (< 0 v_f3_6) (= v_f3_5 0)) InVars {f3=v_f3_6} OutVars{f3=v_f3_5} AuxVars[] AssignedVars[f3]" "[125] L65-1-->L71: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" "[126] L71-->L63: Formula: (= v_f4_1 1) InVars {} OutVars{f4=v_f4_1} AuxVars[] AssignedVars[f4]" [2025-04-26 18:43:54,970 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:54,970 INFO L85 PathProgramCache]: Analyzing trace with hash 632706773, now seen corresponding path program 1 times [2025-04-26 18:43:54,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:54,970 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298243744] [2025-04-26 18:43:54,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:54,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:54,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 18:43:54,975 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 18:43:54,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:54,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:54,975 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:43:54,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 18:43:54,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 18:43:54,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:54,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:54,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:43:54,980 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:54,980 INFO L85 PathProgramCache]: Analyzing trace with hash 4681188, now seen corresponding path program 1 times [2025-04-26 18:43:54,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:54,981 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527902174] [2025-04-26 18:43:54,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:54,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:54,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:54,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:54,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:54,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:54,984 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:43:54,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:54,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:54,985 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:54,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:54,986 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:43:54,987 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:54,987 INFO L85 PathProgramCache]: Analyzing trace with hash 579746488, now seen corresponding path program 1 times [2025-04-26 18:43:54,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:54,987 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624859600] [2025-04-26 18:43:54,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:54,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:54,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 18:43:54,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 18:43:54,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:54,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:55,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:43:55,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:43:55,025 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624859600] [2025-04-26 18:43:55,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624859600] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:43:55,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:43:55,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 18:43:55,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4246335] [2025-04-26 18:43:55,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:43:55,054 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:43:55,054 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:43:55,054 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:43:55,054 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:43:55,054 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:43:55,054 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:55,054 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:43:55,054 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:43:55,054 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration3_Loop [2025-04-26 18:43:55,054 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:43:55,054 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:43:55,055 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:55,057 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:55,062 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:55,095 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:43:55,095 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:43:55,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:55,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:55,097 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) [2025-04-26 18:43:55,097 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 [2025-04-26 18:43:55,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:43:55,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:55,110 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:43:55,111 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f4=1} Honda state: {f4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:43:55,116 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 [2025-04-26 18:43:55,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:55,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:55,119 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) [2025-04-26 18:43:55,120 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 [2025-04-26 18:43:55,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:43:55,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:55,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-04-26 18:43:55,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:55,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:55,145 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) [2025-04-26 18:43:55,146 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 [2025-04-26 18:43:55,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:43:55,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:55,173 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:43:55,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-04-26 18:43:55,179 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:43:55,179 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:43:55,179 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:43:55,179 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:43:55,179 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:43:55,179 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:55,179 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:43:55,179 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:43:55,179 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration3_Loop [2025-04-26 18:43:55,179 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:43:55,179 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:43:55,180 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:55,184 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:55,191 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:55,223 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:43:55,223 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:43:55,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:55,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:55,225 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) [2025-04-26 18:43:55,227 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 [2025-04-26 18:43:55,228 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 [2025-04-26 18:43:55,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:43:55,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:43:55,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:43:55,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:43:55,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:43:55,240 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:43:55,240 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:43:55,244 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:43:55,250 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 [2025-04-26 18:43:55,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:55,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:55,252 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) [2025-04-26 18:43:55,254 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 [2025-04-26 18:43:55,255 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 [2025-04-26 18:43:55,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:43:55,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:43:55,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:43:55,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:43:55,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:43:55,266 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:43:55,266 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:43:55,269 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:43:55,272 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:43:55,272 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:43:55,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:55,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:55,274 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) [2025-04-26 18:43:55,275 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 [2025-04-26 18:43:55,276 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:43:55,279 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 18:43:55,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-04-26 18:43:55,281 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:43:55,281 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:43:55,281 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(f3) = 1*f3 Supporting invariants [] [2025-04-26 18:43:55,287 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 [2025-04-26 18:43:55,287 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:43:55,301 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:55,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 18:43:55,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 18:43:55,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:55,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:55,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:43:55,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:43:55,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:55,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:55,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:55,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:55,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:43:55,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:43:55,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:43:55,354 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 [2025-04-26 18:43:55,354 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6181 states and 9591 transitions. cyclomatic complexity: 3745 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (in total 12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:55,467 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6181 states and 9591 transitions. cyclomatic complexity: 3745. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (in total 12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 13943 states and 21342 transitions. Complement of second has 5 states. [2025-04-26 18:43:55,468 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 18:43:55,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (in total 12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:55,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2025-04-26 18:43:55,469 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 64 transitions. Stem has 8 letters. Loop has 4 letters. [2025-04-26 18:43:55,469 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:55,469 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 64 transitions. Stem has 12 letters. Loop has 4 letters. [2025-04-26 18:43:55,469 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:55,469 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 64 transitions. Stem has 8 letters. Loop has 8 letters. [2025-04-26 18:43:55,469 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:55,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13943 states and 21342 transitions. [2025-04-26 18:43:55,527 INFO L131 ngComponentsAnalysis]: Automaton has 348 accepting balls. 2003 [2025-04-26 18:43:55,579 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13943 states to 12356 states and 19018 transitions. [2025-04-26 18:43:55,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5544 [2025-04-26 18:43:55,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5806 [2025-04-26 18:43:55,586 INFO L74 IsDeterministic]: Start isDeterministic. Operand 12356 states and 19018 transitions. [2025-04-26 18:43:55,586 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:43:55,586 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12356 states and 19018 transitions. [2025-04-26 18:43:55,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12356 states and 19018 transitions. [2025-04-26 18:43:55,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12356 to 11221. [2025-04-26 18:43:55,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11221 states, 11221 states have (on average 1.5554763390072186) internal successors, (in total 17454), 11220 states have internal predecessors, (17454), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:55,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11221 states to 11221 states and 17454 transitions. [2025-04-26 18:43:55,739 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11221 states and 17454 transitions. [2025-04-26 18:43:55,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:43:55,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 18:43:55,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 18:43:55,739 INFO L87 Difference]: Start difference. First operand 11221 states and 17454 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (in total 12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:55,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:43:55,828 INFO L93 Difference]: Finished difference Result 13446 states and 19980 transitions. [2025-04-26 18:43:55,828 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13446 states and 19980 transitions. [2025-04-26 18:43:55,890 INFO L131 ngComponentsAnalysis]: Automaton has 328 accepting balls. 1572 [2025-04-26 18:43:55,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13446 states to 10198 states and 15383 transitions. [2025-04-26 18:43:55,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5711 [2025-04-26 18:43:55,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5886 [2025-04-26 18:43:55,946 INFO L74 IsDeterministic]: Start isDeterministic. Operand 10198 states and 15383 transitions. [2025-04-26 18:43:55,946 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:43:55,946 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10198 states and 15383 transitions. [2025-04-26 18:43:55,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10198 states and 15383 transitions. [2025-04-26 18:43:56,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10198 to 7039. [2025-04-26 18:43:56,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7039 states, 7039 states have (on average 1.5294786191220344) internal successors, (in total 10766), 7038 states have internal predecessors, (10766), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:56,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 10766 transitions. [2025-04-26 18:43:56,059 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7039 states and 10766 transitions. [2025-04-26 18:43:56,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 18:43:56,060 INFO L438 stractBuchiCegarLoop]: Abstraction has 7039 states and 10766 transitions. [2025-04-26 18:43:56,060 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 18:43:56,060 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7039 states and 10766 transitions. [2025-04-26 18:43:56,085 INFO L131 ngComponentsAnalysis]: Automaton has 189 accepting balls. 915 [2025-04-26 18:43:56,085 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:43:56,085 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:43:56,086 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 18:43:56,086 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:43:56,086 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L18: Formula: (and (= v_f3_4 0) (= v_f2_4 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)) InVars {f4=v_f4_2, 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{f4=v_f4_2, 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[]" "[153] L18-->L37-1: Formula: (= v_thread1Thread1of1ForFork4_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork4_thidvar0=v_thread1Thread1of1ForFork4_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork4_thidvar0]" "[110] L37-1-->L35: 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[]" "[112] L35-->L36: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[113] L36-->L37: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[141] L18-1-->L48: 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]" "[116] L48-->L50: 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[]" "[144] L19-->L63: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" "[122] L63-->L65: Formula: (< v_x3_1 v_z_5) InVars {x3=v_x3_1, z=v_z_5} OutVars{x3=v_x3_1, z=v_z_5} AuxVars[] AssignedVars[]" "[147] L20-->L78: Formula: (and (= 4 v_thread4Thread1of1ForFork2_thidvar2_2) (= 4 v_thread4Thread1of1ForFork2_thidvar3_2) (= 4 v_thread4Thread1of1ForFork2_thidvar1_2) (= 4 v_thread4Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread4Thread1of1ForFork2_thidvar3=v_thread4Thread1of1ForFork2_thidvar3_2, thread4Thread1of1ForFork2_thidvar0=v_thread4Thread1of1ForFork2_thidvar0_2, thread4Thread1of1ForFork2_thidvar2=v_thread4Thread1of1ForFork2_thidvar2_2, thread4Thread1of1ForFork2_thidvar1=v_thread4Thread1of1ForFork2_thidvar1_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork2_thidvar3, thread4Thread1of1ForFork2_thidvar0, thread4Thread1of1ForFork2_thidvar2, thread4Thread1of1ForFork2_thidvar1]" [2025-04-26 18:43:56,087 INFO L754 eck$LassoCheckResult]: Loop: "[128] L78-->L80: Formula: (< v_x4_3 v_z_8) InVars {x4=v_x4_3, z=v_z_8} OutVars{x4=v_x4_3, z=v_z_8} AuxVars[] AssignedVars[]" "[130] L80-->L80-1: Formula: (and (< 0 v_f4_6) (= v_f4_5 0)) InVars {f4=v_f4_6} OutVars{f4=v_f4_5} AuxVars[] AssignedVars[f4]" "[131] L80-1-->L86: Formula: (= v_x4_4 (+ v_x4_5 1)) InVars {x4=v_x4_5} OutVars{x4=v_x4_4} AuxVars[] AssignedVars[x4]" "[132] L86-->L78: Formula: (= v_f5_2 1) InVars {} OutVars{f5=v_f5_2} AuxVars[] AssignedVars[f5]" [2025-04-26 18:43:56,087 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:56,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1463707, now seen corresponding path program 1 times [2025-04-26 18:43:56,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:56,087 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311564677] [2025-04-26 18:43:56,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:56,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:56,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 18:43:56,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 18:43:56,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:56,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:56,098 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:43:56,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 18:43:56,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 18:43:56,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:56,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:56,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:43:56,107 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:56,107 INFO L85 PathProgramCache]: Analyzing trace with hash 4865892, now seen corresponding path program 1 times [2025-04-26 18:43:56,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:56,108 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407183333] [2025-04-26 18:43:56,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:56,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:56,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:56,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:56,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:56,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:56,111 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:43:56,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:56,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:56,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:56,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:56,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:43:56,114 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:56,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1154488264, now seen corresponding path program 1 times [2025-04-26 18:43:56,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:56,114 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146560150] [2025-04-26 18:43:56,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:56,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:56,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-26 18:43:56,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-26 18:43:56,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:56,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:56,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:43:56,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:43:56,152 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146560150] [2025-04-26 18:43:56,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146560150] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:43:56,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:43:56,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 18:43:56,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305694018] [2025-04-26 18:43:56,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:43:56,178 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:43:56,178 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:43:56,178 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:43:56,178 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:43:56,178 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:43:56,178 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:56,178 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:43:56,178 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:43:56,178 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration4_Loop [2025-04-26 18:43:56,178 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:43:56,178 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:43:56,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:56,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:56,186 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:56,213 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:43:56,213 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:43:56,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:56,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:56,217 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) [2025-04-26 18:43:56,217 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 [2025-04-26 18:43:56,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:43:56,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:56,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-04-26 18:43:56,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:56,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:56,237 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:43:56,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-04-26 18:43:56,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:43:56,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:56,305 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:43:56,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-04-26 18:43:56,310 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:43:56,310 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:43:56,310 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:43:56,310 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:43:56,310 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:43:56,310 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:56,310 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:43:56,310 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:43:56,310 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration4_Loop [2025-04-26 18:43:56,310 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:43:56,310 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:43:56,311 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:56,316 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:56,321 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:56,353 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:43:56,353 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:43:56,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:56,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:56,355 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:43:56,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-04-26 18:43:56,358 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 [2025-04-26 18:43:56,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:43:56,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:43:56,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:43:56,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:43:56,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:43:56,369 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:43:56,369 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:43:56,370 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:43:56,373 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:43:56,373 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 18:43:56,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:56,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:56,374 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:43:56,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-04-26 18:43:56,377 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:43:56,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-04-26 18:43:56,380 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:43:56,380 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:43:56,381 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x4) = 1*z - 1*x4 Supporting invariants [] [2025-04-26 18:43:56,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-04-26 18:43:56,387 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:43:56,397 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:56,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 18:43:56,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 18:43:56,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:56,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:56,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:43:56,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:43:56,419 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:56,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:56,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:56,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:56,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:43:56,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:43:56,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:43:56,479 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 [2025-04-26 18:43:56,479 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7039 states and 10766 transitions. cyclomatic complexity: 3993 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (in total 14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:56,587 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7039 states and 10766 transitions. cyclomatic complexity: 3993. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (in total 14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 14732 states and 23164 transitions. Complement of second has 6 states. [2025-04-26 18:43:56,588 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 18:43:56,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (in total 14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:56,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2025-04-26 18:43:56,590 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 107 transitions. Stem has 10 letters. Loop has 4 letters. [2025-04-26 18:43:56,591 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:56,591 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 107 transitions. Stem has 14 letters. Loop has 4 letters. [2025-04-26 18:43:56,591 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:56,591 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 107 transitions. Stem has 10 letters. Loop has 8 letters. [2025-04-26 18:43:56,591 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:56,591 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14732 states and 23164 transitions. [2025-04-26 18:43:56,648 INFO L131 ngComponentsAnalysis]: Automaton has 99 accepting balls. 396 [2025-04-26 18:43:56,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14732 states to 9196 states and 14864 transitions. [2025-04-26 18:43:56,681 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2598 [2025-04-26 18:43:56,685 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2892 [2025-04-26 18:43:56,685 INFO L74 IsDeterministic]: Start isDeterministic. Operand 9196 states and 14864 transitions. [2025-04-26 18:43:56,686 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:43:56,686 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9196 states and 14864 transitions. [2025-04-26 18:43:56,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9196 states and 14864 transitions. [2025-04-26 18:43:56,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9196 to 8789. [2025-04-26 18:43:56,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8789 states, 8789 states have (on average 1.6199795198543634) internal successors, (in total 14238), 8788 states have internal predecessors, (14238), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:56,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8789 states to 8789 states and 14238 transitions. [2025-04-26 18:43:56,793 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8789 states and 14238 transitions. [2025-04-26 18:43:56,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:43:56,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 18:43:56,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 18:43:56,793 INFO L87 Difference]: Start difference. First operand 8789 states and 14238 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (in total 14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:56,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:43:56,860 INFO L93 Difference]: Finished difference Result 11850 states and 18555 transitions. [2025-04-26 18:43:56,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11850 states and 18555 transitions. [2025-04-26 18:43:56,913 INFO L131 ngComponentsAnalysis]: Automaton has 175 accepting balls. 700 [2025-04-26 18:43:56,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11850 states to 11506 states and 17953 transitions. [2025-04-26 18:43:56,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3553 [2025-04-26 18:43:56,970 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4004 [2025-04-26 18:43:56,971 INFO L74 IsDeterministic]: Start isDeterministic. Operand 11506 states and 17953 transitions. [2025-04-26 18:43:56,971 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:43:56,971 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11506 states and 17953 transitions. [2025-04-26 18:43:56,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11506 states and 17953 transitions. [2025-04-26 18:43:57,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11506 to 9305. [2025-04-26 18:43:57,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9305 states, 9305 states have (on average 1.5767866738312735) internal successors, (in total 14672), 9304 states have internal predecessors, (14672), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:57,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9305 states to 9305 states and 14672 transitions. [2025-04-26 18:43:57,108 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9305 states and 14672 transitions. [2025-04-26 18:43:57,109 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 18:43:57,111 INFO L438 stractBuchiCegarLoop]: Abstraction has 9305 states and 14672 transitions. [2025-04-26 18:43:57,112 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 18:43:57,112 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9305 states and 14672 transitions. [2025-04-26 18:43:57,141 INFO L131 ngComponentsAnalysis]: Automaton has 99 accepting balls. 396 [2025-04-26 18:43:57,141 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:43:57,141 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:43:57,142 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 18:43:57,142 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:43:57,143 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L18: Formula: (and (= v_f3_4 0) (= v_f2_4 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)) InVars {f4=v_f4_2, 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{f4=v_f4_2, 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[]" "[153] L18-->L37-1: Formula: (= v_thread1Thread1of1ForFork4_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork4_thidvar0=v_thread1Thread1of1ForFork4_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork4_thidvar0]" "[110] L37-1-->L35: 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[]" "[112] L35-->L36: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[113] L36-->L37: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[141] L18-1-->L48: 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]" "[116] L48-->L50: 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[]" "[144] L19-->L63: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" "[122] L63-->L65: Formula: (< v_x3_1 v_z_5) InVars {x3=v_x3_1, z=v_z_5} OutVars{x3=v_x3_1, z=v_z_5} AuxVars[] AssignedVars[]" "[147] L20-->L78: Formula: (and (= 4 v_thread4Thread1of1ForFork2_thidvar2_2) (= 4 v_thread4Thread1of1ForFork2_thidvar3_2) (= 4 v_thread4Thread1of1ForFork2_thidvar1_2) (= 4 v_thread4Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread4Thread1of1ForFork2_thidvar3=v_thread4Thread1of1ForFork2_thidvar3_2, thread4Thread1of1ForFork2_thidvar0=v_thread4Thread1of1ForFork2_thidvar0_2, thread4Thread1of1ForFork2_thidvar2=v_thread4Thread1of1ForFork2_thidvar2_2, thread4Thread1of1ForFork2_thidvar1=v_thread4Thread1of1ForFork2_thidvar1_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork2_thidvar3, thread4Thread1of1ForFork2_thidvar0, thread4Thread1of1ForFork2_thidvar2, thread4Thread1of1ForFork2_thidvar1]" "[128] L78-->L80: Formula: (< v_x4_3 v_z_8) InVars {x4=v_x4_3, z=v_z_8} OutVars{x4=v_x4_3, z=v_z_8} AuxVars[] AssignedVars[]" "[150] L21-->L93: Formula: (and (= v_thread5Thread1of1ForFork3_thidvar1_2 5) (= v_thread5Thread1of1ForFork3_thidvar3_2 5) (= v_thread5Thread1of1ForFork3_thidvar4_2 5) (= v_thread5Thread1of1ForFork3_thidvar2_2 5) (= v_thread5Thread1of1ForFork3_thidvar0_2 5)) InVars {} OutVars{thread5Thread1of1ForFork3_thidvar2=v_thread5Thread1of1ForFork3_thidvar2_2, thread5Thread1of1ForFork3_thidvar1=v_thread5Thread1of1ForFork3_thidvar1_2, thread5Thread1of1ForFork3_thidvar4=v_thread5Thread1of1ForFork3_thidvar4_2, thread5Thread1of1ForFork3_thidvar3=v_thread5Thread1of1ForFork3_thidvar3_2, thread5Thread1of1ForFork3_thidvar0=v_thread5Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread5Thread1of1ForFork3_thidvar2, thread5Thread1of1ForFork3_thidvar1, thread5Thread1of1ForFork3_thidvar4, thread5Thread1of1ForFork3_thidvar3, thread5Thread1of1ForFork3_thidvar0]" [2025-04-26 18:43:57,143 INFO L754 eck$LassoCheckResult]: Loop: "[134] L93-->L95: Formula: (< v_x5_2 v_z_9) InVars {x5=v_x5_2, z=v_z_9} OutVars{x5=v_x5_2, z=v_z_9} AuxVars[] AssignedVars[]" "[136] L95-->L95-1: Formula: (and (= v_f5_5 0) (< 0 v_f5_6)) InVars {f5=v_f5_6} OutVars{f5=v_f5_5} AuxVars[] AssignedVars[f5]" "[137] L95-1-->L101: Formula: (= v_x5_3 (+ v_x5_4 1)) InVars {x5=v_x5_4} OutVars{x5=v_x5_3} AuxVars[] AssignedVars[x5]" "[138] L101-->L93: Formula: (= v_f1_4 1) InVars {} OutVars{f1=v_f1_4} AuxVars[] AssignedVars[f1]" [2025-04-26 18:43:57,144 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:57,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1406618309, now seen corresponding path program 1 times [2025-04-26 18:43:57,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:57,144 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991526075] [2025-04-26 18:43:57,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:57,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:57,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 18:43:57,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 18:43:57,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:57,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:57,153 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:43:57,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 18:43:57,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 18:43:57,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:57,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:57,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:43:57,166 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:57,166 INFO L85 PathProgramCache]: Analyzing trace with hash 5050596, now seen corresponding path program 1 times [2025-04-26 18:43:57,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:57,166 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710173526] [2025-04-26 18:43:57,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:57,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:57,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:57,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:57,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:57,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:57,169 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:43:57,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:57,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:57,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:57,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:57,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:43:57,178 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:57,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1380227358, now seen corresponding path program 1 times [2025-04-26 18:43:57,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:57,179 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054654034] [2025-04-26 18:43:57,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:57,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:57,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 18:43:57,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 18:43:57,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:57,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:57,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:43:57,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:43:57,213 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054654034] [2025-04-26 18:43:57,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054654034] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:43:57,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:43:57,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 18:43:57,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671065608] [2025-04-26 18:43:57,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:43:57,244 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:43:57,244 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:43:57,244 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:43:57,244 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:43:57,244 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:43:57,244 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:57,244 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:43:57,244 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:43:57,244 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration5_Loop [2025-04-26 18:43:57,244 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:43:57,244 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:43:57,245 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:57,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:57,256 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:57,287 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:43:57,288 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:43:57,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:57,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:57,291 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:43:57,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-04-26 18:43:57,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:43:57,294 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:57,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2025-04-26 18:43:57,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:57,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:57,318 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2025-04-26 18:43:57,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-04-26 18:43:57,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:43:57,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:57,385 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:43:57,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-04-26 18:43:57,390 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:43:57,390 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:43:57,390 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:43:57,390 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:43:57,390 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:43:57,390 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:57,390 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:43:57,390 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:43:57,390 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration5_Loop [2025-04-26 18:43:57,390 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:43:57,390 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:43:57,391 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:57,396 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:57,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:57,438 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:43:57,438 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:43:57,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:57,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:57,444 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2025-04-26 18:43:57,475 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 [2025-04-26 18:43:57,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-04-26 18:43:57,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:43:57,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:43:57,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:43:57,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:43:57,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:43:57,486 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:43:57,486 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:43:57,489 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:43:57,490 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:43:57,491 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 18:43:57,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:57,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:57,492 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2025-04-26 18:43:57,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-04-26 18:43:57,495 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:43:57,498 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 18:43:57,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-04-26 18:43:57,499 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:43:57,499 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:43:57,499 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x5) = 1*z - 1*x5 Supporting invariants [] [2025-04-26 18:43:57,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-04-26 18:43:57,505 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:43:57,518 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:57,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 18:43:57,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 18:43:57,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:57,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:57,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:43:57,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:43:57,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:57,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:57,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:57,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:57,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:43:57,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:43:57,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:43:57,590 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 [2025-04-26 18:43:57,590 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9305 states and 14672 transitions. cyclomatic complexity: 5573 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (in total 16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:57,713 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9305 states and 14672 transitions. cyclomatic complexity: 5573. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (in total 16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 18986 states and 30663 transitions. Complement of second has 6 states. [2025-04-26 18:43:57,714 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 18:43:57,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (in total 16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:57,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2025-04-26 18:43:57,715 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 103 transitions. Stem has 12 letters. Loop has 4 letters. [2025-04-26 18:43:57,715 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:57,715 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 103 transitions. Stem has 16 letters. Loop has 4 letters. [2025-04-26 18:43:57,715 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:57,715 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 103 transitions. Stem has 12 letters. Loop has 8 letters. [2025-04-26 18:43:57,715 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:57,715 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18986 states and 30663 transitions. [2025-04-26 18:43:57,805 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:43:57,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18986 states to 0 states and 0 transitions. [2025-04-26 18:43:57,805 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 18:43:57,805 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 18:43:57,805 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 18:43:57,805 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 18:43:57,805 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:43:57,805 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:43:57,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:43:57,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 18:43:57,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 18:43:57,806 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (in total 16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:43:57,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:43:57,806 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-04-26 18:43:57,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-04-26 18:43:57,806 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:43:57,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-04-26 18:43:57,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 18:43:57,806 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 18:43:57,806 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 18:43:57,806 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 18:43:57,806 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:43:57,806 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:43:57,806 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-26 18:43:57,807 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:43:57,807 INFO L340 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-04-26 18:43:57,807 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 18:43:57,807 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:43:57,807 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 18:43:57,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-26 18:43:57,820 INFO L201 PluginConnector]: Adding new model interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 06:43:57 BoogieIcfgContainer [2025-04-26 18:43:57,820 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 18:43:57,821 INFO L158 Benchmark]: Toolchain (without parser) took 7645.24ms. Allocated memory was 163.6MB in the beginning and 587.2MB in the end (delta: 423.6MB). Free memory was 92.0MB in the beginning and 356.1MB in the end (delta: -264.1MB). Peak memory consumption was 156.0MB. Max. memory is 8.0GB. [2025-04-26 18:43:57,821 INFO L158 Benchmark]: Boogie PL CUP Parser took 1.04ms. Allocated memory is still 163.6MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:43:57,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.16ms. Allocated memory is still 163.6MB. Free memory was 92.0MB in the beginning and 90.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:43:57,821 INFO L158 Benchmark]: Boogie Preprocessor took 28.79ms. Allocated memory is still 163.6MB. Free memory was 90.2MB in the beginning and 88.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:43:57,821 INFO L158 Benchmark]: RCFGBuilder took 253.18ms. Allocated memory is still 163.6MB. Free memory was 88.9MB in the beginning and 78.5MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 18:43:57,821 INFO L158 Benchmark]: BuchiAutomizer took 7318.89ms. Allocated memory was 163.6MB in the beginning and 587.2MB in the end (delta: 423.6MB). Free memory was 78.5MB in the beginning and 356.1MB in the end (delta: -277.7MB). Peak memory consumption was 143.5MB. Max. memory is 8.0GB. [2025-04-26 18:43:57,822 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 1.04ms. Allocated memory is still 163.6MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.16ms. Allocated memory is still 163.6MB. Free memory was 92.0MB in the beginning and 90.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 28.79ms. Allocated memory is still 163.6MB. Free memory was 90.2MB in the beginning and 88.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 253.18ms. Allocated memory is still 163.6MB. Free memory was 88.9MB in the beginning and 78.5MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 7318.89ms. Allocated memory was 163.6MB in the beginning and 587.2MB in the end (delta: 423.6MB). Free memory was 78.5MB in the beginning and 356.1MB in the end (delta: -277.7MB). Peak memory consumption was 143.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.1s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.2s. Büchi inclusion checks took 2.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 8. Automata minimization 1.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 14481 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 1.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 455 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 450 mSDsluCounter, 501 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 234 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 385 IncrementalHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 267 mSDtfsCounter, 385 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT5 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 41ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 1.1s InitialAbstraction: Time to compute Ample Reduction [ms]: 1181, Number of transitions in reduction automaton: 6787, Number of states in reduction automaton: 3903, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (5 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + z and consists of 4 locations. One deterministic module has affine ranking function f2 and consists of 3 locations. One deterministic module has affine ranking function f3 and consists of 3 locations. One deterministic module has affine ranking function -1 * x4 + z and consists of 4 locations. One deterministic module has affine ranking function -1 * x5 + z and consists of 4 locations. 5 modules have a trivial ranking function, the largest among these consists of 3 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 18:43:57,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...