/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/interleaved6.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 18:43:51,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 18:43:51,194 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 18:43:51,197 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 18:43:51,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 18:43:51,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 18:43:51,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 18:43:51,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 18:43:51,218 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 18:43:51,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 18:43:51,219 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 18:43:51,219 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 18:43:51,219 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 18:43:51,219 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 18:43:51,219 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 18:43:51,219 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 18:43:51,219 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 18:43:51,219 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 18:43:51,221 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 18:43:51,221 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 18:43:51,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 18:43:51,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 18:43:51,222 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 18:43:51,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 18:43:51,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 18:43:51,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 18:43:51,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 18:43:51,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 18:43:51,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 18:43:51,222 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 18:43:51,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 18:43:51,223 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 18:43:51,223 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 18:43:51,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 18:43:51,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 18:43:51,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:43:51,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 18:43:51,223 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 18:43:51,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 18:43:51,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 18:43:51,223 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 18:43:51,224 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 18:43:51,224 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 18:43:51,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 18:43:51,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 18:43:51,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 18:43:51,452 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 18:43:51,452 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 18:43:51,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/interleaved6.c.bpl [2025-04-26 18:43:51,453 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/interleaved6.c.bpl' [2025-04-26 18:43:51,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 18:43:51,468 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 18:43:51,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 18:43:51,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 18:43:51,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 18:43:51,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:51" (1/1) ... [2025-04-26 18:43:51,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:51" (1/1) ... [2025-04-26 18:43:51,514 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 18:43:51,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 18:43:51,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 18:43:51,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 18:43:51,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 18:43:51,522 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:51" (1/1) ... [2025-04-26 18:43:51,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:51" (1/1) ... [2025-04-26 18:43:51,528 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:51" (1/1) ... [2025-04-26 18:43:51,528 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:51" (1/1) ... [2025-04-26 18:43:51,531 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:51" (1/1) ... [2025-04-26 18:43:51,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:51" (1/1) ... [2025-04-26 18:43:51,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:51" (1/1) ... [2025-04-26 18:43:51,538 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:51" (1/1) ... [2025-04-26 18:43:51,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:51" (1/1) ... [2025-04-26 18:43:51,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 18:43:51,554 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 18:43:51,554 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 18:43:51,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 18:43:51,556 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:51" (1/1) ... [2025-04-26 18:43:51,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:43:51,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:51,582 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 18:43:51,587 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 18:43:51,610 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 18:43:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 18:43:51,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 18:43:51,610 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 18:43:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 18:43:51,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 18:43:51,610 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 18:43:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 18:43:51,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 18:43:51,611 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 18:43:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 18:43:51,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 18:43:51,611 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-04-26 18:43:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 18:43:51,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 18:43:51,611 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-04-26 18:43:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-26 18:43:51,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-26 18:43:51,611 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-04-26 18:43:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-26 18:43:51,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-26 18:43:51,612 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 18:43:51,655 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 18:43:51,657 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 18:43:51,785 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 18:43:51,785 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 18:43:51,803 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 18:43:51,803 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 18:43:51,804 INFO L201 PluginConnector]: Adding new model interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:43:51 BoogieIcfgContainer [2025-04-26 18:43:51,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 18:43:51,807 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 18:43:51,807 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 18:43:51,814 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 18:43:51,815 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:43:51,815 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:43:51" (1/2) ... [2025-04-26 18:43:51,817 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71dded5f and model type interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 06:43:51, skipping insertion in model container [2025-04-26 18:43:51,817 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:43:51,817 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:43:51" (2/2) ... [2025-04-26 18:43:51,820 INFO L376 chiAutomizerObserver]: Analyzing ICFG interleaved6.c.bpl [2025-04-26 18:43:51,915 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2025-04-26 18:43:51,961 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 18:43:51,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 18:43:51,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:51,964 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 18:43:51,965 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 18:43:52,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 62 transitions, 166 flow [2025-04-26 18:43:52,045 INFO L116 PetriNetUnfolderBase]: 6/50 cut-off events. [2025-04-26 18:43:52,047 INFO L117 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-04-26 18:43:52,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 50 events. 6/50 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 136 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2025-04-26 18:43:52,050 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 62 transitions, 166 flow [2025-04-26 18:43:52,053 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 50 transitions, 136 flow [2025-04-26 18:43:52,054 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 63 places, 50 transitions, 136 flow [2025-04-26 18:43:52,054 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 50 transitions, 136 flow [2025-04-26 18:43:54,653 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65320 states, 65319 states have (on average 5.942834397342274) internal successors, (in total 388180), 65319 states have internal predecessors, (388180), 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 18:43:54,783 INFO L171 actionProvider$Eager]: Constructed initial Büchi automaton abstraction (from Petri net) that has 65320 states, 65319 states have (on average 5.942834397342274) internal successors, (in total 388180), 65319 states have internal predecessors, (388180), 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 18:43:54,785 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 18:43:55,017 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 129338#[L99-1, L90, L28, L114]true [2025-04-26 18:43:55,176 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 60578#[L75, thread5EXIT, L24, thread1EXIT, L84, thread2EXIT]true [2025-04-26 18:43:55,287 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 126596#[L84-1, thread6EXIT, L75, L27, L99]true [2025-04-26 18:43:55,309 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 121476#[L84-1, L114, L75, L27, L99]true [2025-04-26 18:43:55,314 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 59872#[L99, L75, L24, thread1EXIT, thread2EXIT, L84-1]true [2025-04-26 18:43:55,730 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 18138#[L23, L60, thread1EXIT, L69, thread4EXIT]true [2025-04-26 18:43:55,731 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 66640#[thread5EXIT, thread4EXIT, L24, L69, L60, thread1EXIT]true [2025-04-26 18:43:55,752 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 117684#[thread6EXIT, thread5EXIT, L69, L26, L60, L84]true [2025-04-26 18:43:55,802 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 69662#[thread5EXIT, L24, L69-1, L60, thread1EXIT, L84]true [2025-04-26 18:43:55,807 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 105442#[thread6EXIT, L69, L60, L26, L84, L99]true [2025-04-26 18:43:55,858 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 89014#[L99, L114, L69, L60, L26, L84]true [2025-04-26 18:43:55,873 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 89528#[L105, L24, L60, L69-1, thread1EXIT, L84]true [2025-04-26 18:43:55,876 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 49554#[L99, L24, L60, L69-1, thread1EXIT, L84]true [2025-04-26 18:43:55,877 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 18894#[L23, L84, L69-1, L60, thread1EXIT]true [2025-04-26 18:43:55,891 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 129130#[L120, thread3EXIT, L105, thread4EXIT, thread2EXIT, L41, L25]true [2025-04-26 18:43:55,912 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 121158#[L114, L90, thread3EXIT, thread2EXIT, L41, L25, L99-1]true [2025-04-26 18:43:55,913 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 130330#[L120, L90, thread3EXIT, L105, thread2EXIT, L41, L25]true [2025-04-26 18:43:56,037 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 80380#[L75, thread5EXIT, L41, L24, thread2EXIT, L84]true [2025-04-26 18:43:56,093 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 111888#[L114, L75, thread2EXIT, L41, L99, L25, L84-1]true [2025-04-26 18:43:56,094 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 130652#[L120, L90, L75, L105, thread2EXIT, L41, L25]true [2025-04-26 18:43:56,095 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 79730#[L99, L75, L41, L24, L84-1, thread2EXIT]true [2025-04-26 18:43:56,169 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 107642#[L54, L90, thread3EXIT, thread6EXIT, L25, L99, L40]true [2025-04-26 18:43:56,172 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 128956#[L120, L54, L90, thread3EXIT, L105, L25, L40]true [2025-04-26 18:43:56,173 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 119186#[L120, L54, L90, thread3EXIT, L25, L99, L40]true [2025-04-26 18:43:56,174 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 119198#[L54, L114, L90, thread3EXIT, L41, L25, L99-1]true [2025-04-26 18:43:56,175 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 130218#[L120, L54, L90, thread3EXIT, L105, L41, L25]true [2025-04-26 18:43:56,212 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 90778#[L54, thread4EXIT, thread6EXIT, L40, L25, L69, thread5EXIT]true [2025-04-26 18:43:56,219 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 66724#[thread5EXIT, L41, thread4EXIT, L24, L60, L67]true [2025-04-26 18:43:56,229 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 125618#[L120, L54, thread4EXIT, L105, L41, L25, L69]true [2025-04-26 18:43:56,230 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 86102#[L69, L24, thread4EXIT, L105, L40, L60]true [2025-04-26 18:43:56,321 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 73478#[L54, L84, thread6EXIT, L40, L25, thread5EXIT, L69]true [2025-04-26 18:43:56,373 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 106124#[L120, L84, L40, L25, L54-1, L69, thread5EXIT]true [2025-04-26 18:43:56,373 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 128806#[L60, L120, L75, L84, L25, L40, thread5EXIT]true [2025-04-26 18:43:56,381 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 69680#[thread5EXIT, L24, L40, L60, L69-1, L84]true [2025-04-26 18:43:56,382 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 70916#[L82, thread5EXIT, L75, L24, L40, L60]true [2025-04-26 18:43:56,484 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 53238#[L54, L84, thread6EXIT, L99, L25, L40, L69]true [2025-04-26 18:43:56,496 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 103530#[L90, L99, thread6EXIT, L54-1, L25, L40, L69]true [2025-04-26 18:43:56,625 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 108798#[L120, L54, L105, L84, L25, L40, L69]true [2025-04-26 18:43:56,651 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 89300#[L120, L84, L54-1, L25, L99, L40, L69]true [2025-04-26 18:43:56,652 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 128500#[L60, L120, L75, L25, L99, L40, L84-1]true [2025-04-26 18:43:56,659 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 89544#[L24, L105, L40, L69-1, L60, L84]true [2025-04-26 18:43:56,685 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 49588#[L99, L24, L40, L69-1, L60, L84]true [2025-04-26 18:43:56,689 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 18900#[L23, L84, L69-1, L60, L40]true [2025-04-26 18:43:56,691 WARN L140 AmpleReduction]: Number of pruned transitions: 68758 [2025-04-26 18:43:56,691 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 43 [2025-04-26 18:43:56,691 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 3591 [2025-04-26 18:43:56,691 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:93 [2025-04-26 18:43:56,692 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:17348 [2025-04-26 18:43:56,693 WARN L145 AmpleReduction]: Times succ was already a loop node:2024 [2025-04-26 18:43:56,693 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:8725 [2025-04-26 18:43:56,693 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 18:43:56,757 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 20990 states, 20989 states have (on average 1.9439230072895326) internal successors, (in total 40801), 20989 states have internal predecessors, (40801), 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 18:43:56,764 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 18:43:56,764 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 18:43:56,764 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 18:43:56,764 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 18:43:56,765 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 18:43:56,765 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 18:43:56,765 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 18:43:56,765 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 18:43:56,805 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20990 states, 20989 states have (on average 1.9439230072895326) internal successors, (in total 40801), 20989 states have internal predecessors, (40801), 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 18:43:57,246 INFO L131 ngComponentsAnalysis]: Automaton has 980 accepting balls. 17363 [2025-04-26 18:43:57,246 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:43:57,246 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:43:57,253 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 18:43:57,253 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:43:57,253 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 18:43:57,305 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20990 states, 20989 states have (on average 1.9439230072895326) internal successors, (in total 40801), 20989 states have internal predecessors, (40801), 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 18:43:57,649 INFO L131 ngComponentsAnalysis]: Automaton has 980 accepting balls. 17363 [2025-04-26 18:43:57,650 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:43:57,650 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:43:57,651 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 18:43:57,651 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:43:57,657 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L20: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f6_1 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0) (= v_x6_1 0)) InVars {f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[183] L20-->L41-1: Formula: (= v_thread1Thread1of1ForFork5_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork5_thidvar0=v_thread1Thread1of1ForFork5_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_thidvar0]" [2025-04-26 18:43:57,658 INFO L754 eck$LassoCheckResult]: Loop: "[131] L41-1-->L39: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[133] L39-->L40: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[134] L40-->L41: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[135] L41-->L41-1: Formula: (and (< 0 v_f1_6) (= v_f1_5 0)) InVars {f1=v_f1_6} OutVars{f1=v_f1_5} AuxVars[] AssignedVars[f1]" [2025-04-26 18:43:57,663 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:57,664 INFO L85 PathProgramCache]: Analyzing trace with hash 4368, now seen corresponding path program 1 times [2025-04-26 18:43:57,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:57,671 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390895457] [2025-04-26 18:43:57,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:57,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:57,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:43:57,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:43:57,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:57,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:57,751 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:43:57,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:43:57,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:43:57,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:57,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:57,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:43:57,792 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:57,792 INFO L85 PathProgramCache]: Analyzing trace with hash 4958244, now seen corresponding path program 1 times [2025-04-26 18:43:57,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:57,792 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083120226] [2025-04-26 18:43:57,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:57,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:57,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:57,805 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:57,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:57,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:57,805 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:43:57,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:57,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:57,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:57,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:43:57,815 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:43:57,817 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:57,817 INFO L85 PathProgramCache]: Analyzing trace with hash -256992845, now seen corresponding path program 1 times [2025-04-26 18:43:57,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:43:57,817 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853889283] [2025-04-26 18:43:57,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:43:57,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:43:57,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:43:57,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:43:57,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:57,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:58,024 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 18:43:58,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:43:58,025 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853889283] [2025-04-26 18:43:58,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853889283] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:43:58,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:43:58,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-26 18:43:58,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242782746] [2025-04-26 18:43:58,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:43:58,115 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:43:58,122 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:43:58,122 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:43:58,122 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:43:58,122 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:43:58,122 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:58,122 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:43:58,122 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:43:58,123 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration1_Loop [2025-04-26 18:43:58,123 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:43:58,123 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:43:58,136 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:58,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:58,170 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:58,248 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:43:58,249 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:43:58,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:58,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:58,261 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 18:43:58,272 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 18:43:58,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:43:58,273 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:58,298 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:43:58,298 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f2=1} Honda state: {f2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:43:58,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-04-26 18:43:58,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:58,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:58,323 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 18:43:58,325 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 18:43:58,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:43:58,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:58,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-04-26 18:43:58,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:58,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:58,376 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 18:43:58,380 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 18:43:58,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:43:58,381 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:43:58,423 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:43:58,428 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 18:43:58,428 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:43:58,428 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:43:58,428 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:43:58,428 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:43:58,428 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:43:58,429 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:58,429 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:43:58,429 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:43:58,429 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration1_Loop [2025-04-26 18:43:58,429 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:43:58,429 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:43:58,430 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:58,438 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:58,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:43:58,504 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:43:58,508 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:43:58,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:58,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:58,563 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 18:43:58,565 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 18:43:58,566 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 18:43:58,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:43:58,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:43:58,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:43:58,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:43:58,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:43:58,599 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:43:58,599 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:43:58,601 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:43:58,604 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:43:58,605 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:43:58,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:43:58,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:43:58,613 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 18:43:58,619 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 18:43:58,620 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:43:58,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-04-26 18:43:58,631 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:43:58,631 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:43:58,632 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(f1) = 1*f1 Supporting invariants [] [2025-04-26 18:43:58,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 18:43:58,668 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:43:58,722 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:43:58,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:43:58,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:43:58,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:58,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:58,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:43:58,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:43:58,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:43:58,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:43:58,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:43:58,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:43:58,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:43:58,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:43:58,798 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 18:43:58,839 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 18:43:58,900 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 20990 states, 20989 states have (on average 1.9439230072895326) internal successors, (in total 40801), 20989 states have internal predecessors, (40801), 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 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 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 18:43:59,868 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 20990 states, 20989 states have (on average 1.9439230072895326) internal successors, (in total 40801), 20989 states have internal predecessors, (40801), 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 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 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 48920 states and 92877 transitions. Complement of second has 5 states. [2025-04-26 18:43:59,869 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 18:43:59,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 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 18:43:59,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-04-26 18:43:59,881 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 18:43:59,882 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:59,882 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 6 letters. Loop has 4 letters. [2025-04-26 18:43:59,882 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:59,882 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 2 letters. Loop has 8 letters. [2025-04-26 18:43:59,882 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:43:59,883 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48920 states and 92877 transitions. [2025-04-26 18:44:00,328 INFO L131 ngComponentsAnalysis]: Automaton has 1468 accepting balls. 21802 [2025-04-26 18:44:00,816 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48920 states to 37542 states and 70270 transitions. [2025-04-26 18:44:00,817 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28792 [2025-04-26 18:44:00,894 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30391 [2025-04-26 18:44:00,895 INFO L74 IsDeterministic]: Start isDeterministic. Operand 37542 states and 70270 transitions. [2025-04-26 18:44:00,897 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:44:00,897 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37542 states and 70270 transitions. [2025-04-26 18:44:01,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37542 states and 70270 transitions. [2025-04-26 18:44:02,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37542 to 30456. [2025-04-26 18:44:02,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30456 states, 30456 states have (on average 1.8991660099816128) internal successors, (in total 57841), 30455 states have internal predecessors, (57841), 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 18:44:02,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30456 states to 30456 states and 57841 transitions. [2025-04-26 18:44:02,655 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30456 states and 57841 transitions. [2025-04-26 18:44:02,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:44:02,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 18:44:02,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 18:44:02,661 INFO L87 Difference]: Start difference. First operand 30456 states and 57841 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 18:44:02,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:44:02,940 INFO L93 Difference]: Finished difference Result 30621 states and 54107 transitions. [2025-04-26 18:44:02,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30621 states and 54107 transitions. [2025-04-26 18:44:03,230 INFO L131 ngComponentsAnalysis]: Automaton has 1296 accepting balls. 18644 [2025-04-26 18:44:03,481 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30621 states to 25650 states and 46516 transitions. [2025-04-26 18:44:03,481 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25650 [2025-04-26 18:44:03,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25650 [2025-04-26 18:44:03,526 INFO L74 IsDeterministic]: Start isDeterministic. Operand 25650 states and 46516 transitions. [2025-04-26 18:44:03,592 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 18:44:03,592 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25650 states and 46516 transitions. [2025-04-26 18:44:03,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25650 states and 46516 transitions. [2025-04-26 18:44:04,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25650 to 18843. [2025-04-26 18:44:04,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18843 states, 18843 states have (on average 1.8431778379238974) internal successors, (in total 34731), 18842 states have internal predecessors, (34731), 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 18:44:04,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18843 states to 18843 states and 34731 transitions. [2025-04-26 18:44:04,265 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18843 states and 34731 transitions. [2025-04-26 18:44:04,266 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 18:44:04,267 INFO L438 stractBuchiCegarLoop]: Abstraction has 18843 states and 34731 transitions. [2025-04-26 18:44:04,267 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 18:44:04,267 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18843 states and 34731 transitions. [2025-04-26 18:44:04,391 INFO L131 ngComponentsAnalysis]: Automaton has 840 accepting balls. 14217 [2025-04-26 18:44:04,392 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:44:04,392 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:44:04,393 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 18:44:04,393 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:44:04,393 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L20: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f6_1 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0) (= v_x6_1 0)) InVars {f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[183] L20-->L41-1: Formula: (= v_thread1Thread1of1ForFork5_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork5_thidvar0=v_thread1Thread1of1ForFork5_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_thidvar0]" "[130] L41-1-->thread1FINAL: Formula: (<= v_z_2 v_x1_4) InVars {x1=v_x1_4, z=v_z_2} OutVars{x1=v_x1_4, z=v_z_2} AuxVars[] AssignedVars[]" "[132] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[168] L20-1-->L52: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" [2025-04-26 18:44:04,393 INFO L754 eck$LassoCheckResult]: Loop: "[137] L52-->L54: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" "[139] L54-->L54-1: Formula: (and (< 0 v_f2_6) (= v_f2_5 0)) InVars {f2=v_f2_6} OutVars{f2=v_f2_5} AuxVars[] AssignedVars[f2]" "[140] L54-1-->L60: Formula: (= v_x2_3 (+ v_x2_4 1)) InVars {x2=v_x2_4} OutVars{x2=v_x2_3} AuxVars[] AssignedVars[x2]" "[141] L60-->L52: Formula: (= v_f3_1 1) InVars {} OutVars{f3=v_f3_1} AuxVars[] AssignedVars[f3]" [2025-04-26 18:44:04,394 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:04,394 INFO L85 PathProgramCache]: Analyzing trace with hash 130256278, now seen corresponding path program 1 times [2025-04-26 18:44:04,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:04,394 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195871766] [2025-04-26 18:44:04,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:04,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:04,398 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:44:04,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:44:04,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:04,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:04,401 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:04,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:44:04,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:44:04,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:04,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:04,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:04,407 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:04,407 INFO L85 PathProgramCache]: Analyzing trace with hash 5142948, now seen corresponding path program 1 times [2025-04-26 18:44:04,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:04,407 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375661332] [2025-04-26 18:44:04,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:04,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:04,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:44:04,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:44:04,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:04,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:04,411 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:04,412 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:44:04,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:44:04,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:04,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:04,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:04,418 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:04,418 INFO L85 PathProgramCache]: Analyzing trace with hash 968307897, now seen corresponding path program 1 times [2025-04-26 18:44:04,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:04,418 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303889904] [2025-04-26 18:44:04,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:04,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:04,424 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 18:44:04,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 18:44:04,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:04,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:04,459 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 18:44:04,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:44:04,459 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303889904] [2025-04-26 18:44:04,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303889904] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:44:04,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:44:04,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 18:44:04,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890615762] [2025-04-26 18:44:04,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:44:04,494 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:04,494 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:04,494 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:04,494 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:04,494 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:44:04,494 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:04,494 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:04,494 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:04,494 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration2_Loop [2025-04-26 18:44:04,494 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:04,494 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:04,495 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:04,500 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:04,506 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:04,540 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:04,541 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:44:04,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:04,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:04,544 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 18:44:04,557 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 18:44:04,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:04,557 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:04,572 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:44:04,572 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f3=1} Honda state: {f3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:44:04,581 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 18:44:04,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:04,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:04,584 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 18:44:04,585 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 18:44:04,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:04,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:04,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:04,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:04,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:04,616 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 18:44:04,620 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 18:44:04,621 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:44:04,621 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:04,655 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:44:04,663 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 18:44:04,663 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:04,663 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:04,663 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:04,664 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:04,664 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:44:04,664 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:04,664 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:04,664 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:04,664 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration2_Loop [2025-04-26 18:44:04,664 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:04,664 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:04,664 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:04,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:04,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:04,725 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:04,725 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:44:04,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:04,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:04,728 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 18:44:04,733 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 18:44:04,734 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 18:44:04,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:04,746 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:04,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:04,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:04,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:04,748 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:04,748 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:04,753 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:44:04,757 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:44:04,757 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:44:04,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:04,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:04,764 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 18:44:04,977 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 18:44:04,978 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:44:04,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:04,989 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:44:04,989 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:44:04,989 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(f2) = 1*f2 Supporting invariants [] [2025-04-26 18:44:05,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-04-26 18:44:05,002 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:44:05,032 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:05,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:44:05,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:44:05,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:05,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:05,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:44:05,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:05,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:44:05,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:44:05,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:05,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:05,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:44:05,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:05,159 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 18:44:05,159 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 18:44:05,159 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18843 states and 34731 transitions. cyclomatic complexity: 16728 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 18:44:06,008 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18843 states and 34731 transitions. cyclomatic complexity: 16728. 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 53975 states and 100055 transitions. Complement of second has 5 states. [2025-04-26 18:44:06,010 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 18:44:06,011 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 18:44:06,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2025-04-26 18:44:06,011 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 5 letters. Loop has 4 letters. [2025-04-26 18:44:06,011 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:06,011 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 9 letters. Loop has 4 letters. [2025-04-26 18:44:06,011 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:06,011 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 5 letters. Loop has 8 letters. [2025-04-26 18:44:06,011 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:06,012 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53975 states and 100055 transitions. [2025-04-26 18:44:06,617 INFO L131 ngComponentsAnalysis]: Automaton has 1772 accepting balls. 23258 [2025-04-26 18:44:07,017 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53975 states to 46238 states and 85111 transitions. [2025-04-26 18:44:07,017 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33103 [2025-04-26 18:44:07,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34630 [2025-04-26 18:44:07,066 INFO L74 IsDeterministic]: Start isDeterministic. Operand 46238 states and 85111 transitions. [2025-04-26 18:44:07,066 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:44:07,066 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46238 states and 85111 transitions. [2025-04-26 18:44:07,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46238 states and 85111 transitions. [2025-04-26 18:44:07,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46238 to 39064. [2025-04-26 18:44:07,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39064 states, 39064 states have (on average 1.8562359205406513) internal successors, (in total 72512), 39063 states have internal predecessors, (72512), 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 18:44:08,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39064 states to 39064 states and 72512 transitions. [2025-04-26 18:44:08,054 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39064 states and 72512 transitions. [2025-04-26 18:44:08,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:44:08,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 18:44:08,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 18:44:08,054 INFO L87 Difference]: Start difference. First operand 39064 states and 72512 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 18:44:08,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:44:08,370 INFO L93 Difference]: Finished difference Result 47413 states and 83221 transitions. [2025-04-26 18:44:08,371 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47413 states and 83221 transitions. [2025-04-26 18:44:08,914 INFO L131 ngComponentsAnalysis]: Automaton has 2030 accepting balls. 23740 [2025-04-26 18:44:09,292 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47413 states to 38264 states and 67114 transitions. [2025-04-26 18:44:09,292 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35775 [2025-04-26 18:44:09,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36541 [2025-04-26 18:44:09,354 INFO L74 IsDeterministic]: Start isDeterministic. Operand 38264 states and 67114 transitions. [2025-04-26 18:44:09,391 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:44:09,392 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38264 states and 67114 transitions. [2025-04-26 18:44:09,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38264 states and 67114 transitions. [2025-04-26 18:44:10,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38264 to 22986. [2025-04-26 18:44:10,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22986 states, 22986 states have (on average 1.772992256155921) internal successors, (in total 40754), 22985 states have internal predecessors, (40754), 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 18:44:10,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22986 states to 22986 states and 40754 transitions. [2025-04-26 18:44:10,133 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22986 states and 40754 transitions. [2025-04-26 18:44:10,134 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 18:44:10,135 INFO L438 stractBuchiCegarLoop]: Abstraction has 22986 states and 40754 transitions. [2025-04-26 18:44:10,135 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 18:44:10,135 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22986 states and 40754 transitions. [2025-04-26 18:44:10,343 INFO L131 ngComponentsAnalysis]: Automaton has 1074 accepting balls. 13968 [2025-04-26 18:44:10,344 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:44:10,344 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:44:10,344 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 18:44:10,345 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:44:10,345 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L20: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f6_1 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0) (= v_x6_1 0)) InVars {f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[183] L20-->L41-1: Formula: (= v_thread1Thread1of1ForFork5_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork5_thidvar0=v_thread1Thread1of1ForFork5_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_thidvar0]" "[130] L41-1-->thread1FINAL: Formula: (<= v_z_2 v_x1_4) InVars {x1=v_x1_4, z=v_z_2} OutVars{x1=v_x1_4, z=v_z_2} AuxVars[] AssignedVars[]" "[132] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[168] L20-1-->L52: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[136] L52-->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[]" "[138] thread2FINAL-->thread2EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[171] L21-->L67: 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 18:44:10,345 INFO L754 eck$LassoCheckResult]: Loop: "[143] L67-->L69: 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[]" "[145] L69-->L69-1: Formula: (and (< 0 v_f3_6) (= v_f3_5 0)) InVars {f3=v_f3_6} OutVars{f3=v_f3_5} AuxVars[] AssignedVars[f3]" "[146] L69-1-->L75: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" "[147] L75-->L67: Formula: (= v_f4_1 1) InVars {} OutVars{f4=v_f4_1} AuxVars[] AssignedVars[f4]" [2025-04-26 18:44:10,346 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:10,346 INFO L85 PathProgramCache]: Analyzing trace with hash 2109444755, now seen corresponding path program 1 times [2025-04-26 18:44:10,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:10,346 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539112326] [2025-04-26 18:44:10,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:10,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:10,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 18:44:10,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 18:44:10,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:10,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:10,352 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:10,354 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 18:44:10,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 18:44:10,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:10,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:10,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:10,360 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:10,360 INFO L85 PathProgramCache]: Analyzing trace with hash 5327652, now seen corresponding path program 1 times [2025-04-26 18:44:10,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:10,360 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968603169] [2025-04-26 18:44:10,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:10,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:10,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:44:10,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:44:10,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:10,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:10,364 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:10,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:44:10,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:44:10,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:10,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:10,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:10,378 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:10,378 INFO L85 PathProgramCache]: Analyzing trace with hash 972899510, now seen corresponding path program 1 times [2025-04-26 18:44:10,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:10,378 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512330921] [2025-04-26 18:44:10,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:10,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:10,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 18:44:10,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 18:44:10,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:10,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:10,437 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 18:44:10,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:44:10,437 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512330921] [2025-04-26 18:44:10,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512330921] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:44:10,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:44:10,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 18:44:10,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644057102] [2025-04-26 18:44:10,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:44:10,469 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:10,470 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:10,470 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:10,470 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:10,470 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:44:10,470 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:10,470 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:10,470 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:10,470 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration3_Loop [2025-04-26 18:44:10,470 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:10,470 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:10,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:10,474 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:10,479 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:10,517 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:10,517 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:44:10,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:10,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:10,521 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 18:44:10,522 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 18:44:10,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:10,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:10,535 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:44:10,535 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f4=1} Honda state: {f4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:44:10,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:10,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:10,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:10,544 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 18:44:10,545 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 18:44:10,546 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:10,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:10,565 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 18:44:10,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:10,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:10,569 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 18:44:10,570 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 18:44:10,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:44:10,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:10,596 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:44:10,600 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 18:44:10,601 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:10,601 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:10,601 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:10,601 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:10,601 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:44:10,601 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:10,601 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:10,601 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:10,601 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration3_Loop [2025-04-26 18:44:10,601 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:10,601 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:10,602 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:10,605 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:10,610 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:10,643 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:10,644 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:44:10,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:10,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:10,646 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 18:44:10,647 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 18:44:10,649 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 18:44:10,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:10,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:10,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:10,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:10,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:10,660 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:10,660 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:10,662 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:44:10,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:10,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:10,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:10,670 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 18:44:10,672 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 18:44:10,673 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 18:44:10,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:10,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:10,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:10,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:10,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:10,685 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:10,685 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:10,687 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:44:10,689 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:44:10,689 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:44:10,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:10,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:10,692 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 18:44:10,695 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 18:44:10,696 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:44:10,699 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 18:44:10,700 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:44:10,700 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:44:10,700 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(f3) = 1*f3 Supporting invariants [] [2025-04-26 18:44:10,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-04-26 18:44:10,707 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:44:10,719 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:10,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 18:44:10,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 18:44:10,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:10,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:10,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:44:10,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:10,747 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:44:10,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:44:10,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:10,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:10,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:44:10,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:10,777 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 18:44:10,778 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 18:44:10,778 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22986 states and 40754 transitions. cyclomatic complexity: 18969 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 18:44:11,252 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22986 states and 40754 transitions. cyclomatic complexity: 18969. 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 51549 states and 88239 transitions. Complement of second has 5 states. [2025-04-26 18:44:11,253 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 18:44:11,253 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 18:44:11,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2025-04-26 18:44:11,253 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 8 letters. Loop has 4 letters. [2025-04-26 18:44:11,254 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:11,254 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 12 letters. Loop has 4 letters. [2025-04-26 18:44:11,254 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:11,254 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 8 letters. Loop has 8 letters. [2025-04-26 18:44:11,254 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:11,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51549 states and 88239 transitions. [2025-04-26 18:44:11,777 INFO L131 ngComponentsAnalysis]: Automaton has 1959 accepting balls. 20570 [2025-04-26 18:44:12,058 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51549 states to 45548 states and 78338 transitions. [2025-04-26 18:44:12,058 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33165 [2025-04-26 18:44:12,111 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34008 [2025-04-26 18:44:12,112 INFO L74 IsDeterministic]: Start isDeterministic. Operand 45548 states and 78338 transitions. [2025-04-26 18:44:12,112 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:44:12,112 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45548 states and 78338 transitions. [2025-04-26 18:44:12,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45548 states and 78338 transitions. [2025-04-26 18:44:12,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45548 to 40760. [2025-04-26 18:44:12,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40760 states, 40760 states have (on average 1.7338812561334642) internal successors, (in total 70673), 40759 states have internal predecessors, (70673), 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 18:44:13,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40760 states to 40760 states and 70673 transitions. [2025-04-26 18:44:13,058 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40760 states and 70673 transitions. [2025-04-26 18:44:13,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:44:13,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 18:44:13,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 18:44:13,058 INFO L87 Difference]: Start difference. First operand 40760 states and 70673 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 18:44:13,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:44:13,459 INFO L93 Difference]: Finished difference Result 55699 states and 95912 transitions. [2025-04-26 18:44:13,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55699 states and 95912 transitions. [2025-04-26 18:44:14,125 INFO L131 ngComponentsAnalysis]: Automaton has 3178 accepting balls. 26982 [2025-04-26 18:44:14,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55699 states to 45657 states and 79069 transitions. [2025-04-26 18:44:14,738 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42466 [2025-04-26 18:44:14,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42961 [2025-04-26 18:44:14,843 INFO L74 IsDeterministic]: Start isDeterministic. Operand 45657 states and 79069 transitions. [2025-04-26 18:44:14,844 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:44:14,844 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45657 states and 79069 transitions. [2025-04-26 18:44:14,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45657 states and 79069 transitions. [2025-04-26 18:44:15,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45657 to 31248. [2025-04-26 18:44:15,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31248 states, 31248 states have (on average 1.7598886328725039) internal successors, (in total 54993), 31247 states have internal predecessors, (54993), 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 18:44:15,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31248 states to 31248 states and 54993 transitions. [2025-04-26 18:44:15,662 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31248 states and 54993 transitions. [2025-04-26 18:44:15,662 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 18:44:15,663 INFO L438 stractBuchiCegarLoop]: Abstraction has 31248 states and 54993 transitions. [2025-04-26 18:44:15,663 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 18:44:15,663 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31248 states and 54993 transitions. [2025-04-26 18:44:15,823 INFO L131 ngComponentsAnalysis]: Automaton has 2034 accepting balls. 18262 [2025-04-26 18:44:15,823 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:44:15,823 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:44:15,825 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 18:44:15,825 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:44:15,825 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L20: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f6_1 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0) (= v_x6_1 0)) InVars {f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[183] L20-->L41-1: Formula: (= v_thread1Thread1of1ForFork5_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork5_thidvar0=v_thread1Thread1of1ForFork5_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_thidvar0]" "[131] L41-1-->L39: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[133] L39-->L40: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[134] L40-->L41: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[168] L20-1-->L52: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[137] L52-->L54: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" "[171] L21-->L67: 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]" "[143] L67-->L69: 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[]" "[174] L22-->L82: 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 18:44:15,825 INFO L754 eck$LassoCheckResult]: Loop: "[149] L82-->L84: Formula: (< v_x4_5 v_z_8) InVars {x4=v_x4_5, z=v_z_8} OutVars{x4=v_x4_5, z=v_z_8} AuxVars[] AssignedVars[]" "[151] L84-->L84-1: Formula: (and (< 0 v_f4_6) (= v_f4_5 0)) InVars {f4=v_f4_6} OutVars{f4=v_f4_5} AuxVars[] AssignedVars[f4]" "[152] L84-1-->L90: Formula: (= (+ v_x4_3 1) v_x4_2) InVars {x4=v_x4_3} OutVars{x4=v_x4_2} AuxVars[] AssignedVars[x4]" "[153] L90-->L82: Formula: (= v_f5_2 1) InVars {} OutVars{f5=v_f5_2} AuxVars[] AssignedVars[f5]" [2025-04-26 18:44:15,826 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:15,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1638296213, now seen corresponding path program 1 times [2025-04-26 18:44:15,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:15,826 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226803360] [2025-04-26 18:44:15,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:15,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:15,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 18:44:15,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 18:44:15,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:15,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:15,835 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:15,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 18:44:15,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 18:44:15,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:15,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:15,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:15,851 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:15,851 INFO L85 PathProgramCache]: Analyzing trace with hash 5512356, now seen corresponding path program 1 times [2025-04-26 18:44:15,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:15,851 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964918700] [2025-04-26 18:44:15,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:15,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:15,853 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:44:15,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:44:15,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:15,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:15,854 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:15,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:44:15,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:44:15,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:15,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:15,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:15,857 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:15,857 INFO L85 PathProgramCache]: Analyzing trace with hash -52749000, now seen corresponding path program 1 times [2025-04-26 18:44:15,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:15,857 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069148199] [2025-04-26 18:44:15,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:15,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:15,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-26 18:44:15,861 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-26 18:44:15,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:15,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:15,877 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 18:44:15,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:44:15,877 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069148199] [2025-04-26 18:44:15,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069148199] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:44:15,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:44:15,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 18:44:15,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300998506] [2025-04-26 18:44:15,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:44:15,900 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:15,900 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:15,900 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:15,900 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:15,900 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:44:15,900 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:15,900 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:15,900 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:15,901 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration4_Loop [2025-04-26 18:44:15,901 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:15,901 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:15,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:15,906 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:15,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:15,949 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:15,949 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:44:15,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:15,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:15,951 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 18:44:15,952 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 18:44:15,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:15,954 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:15,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:15,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:15,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:15,978 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 18:44:15,980 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 18:44:15,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:44:15,981 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:16,049 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:44:16,054 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 18:44:16,055 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:16,055 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:16,055 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:16,055 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:16,055 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:44:16,055 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:16,055 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:16,055 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:16,055 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration4_Loop [2025-04-26 18:44:16,055 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:16,055 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:16,056 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:16,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:16,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:16,091 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:16,092 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:44:16,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:16,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:16,094 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 18:44:16,095 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 18:44:16,096 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 18:44:16,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:16,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:16,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:16,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:16,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:16,107 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:16,107 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:16,109 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:44:16,112 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 18:44:16,112 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:44:16,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:16,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:16,114 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 18:44:16,115 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 18:44:16,117 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:44:16,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-04-26 18:44:16,124 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:44:16,125 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:44:16,125 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x4) = 1*z - 1*x4 Supporting invariants [] [2025-04-26 18:44:16,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-04-26 18:44:16,133 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:44:16,156 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:16,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 18:44:16,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 18:44:16,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:16,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:16,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:44:16,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:16,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:44:16,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:44:16,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:16,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:16,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:44:16,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:16,246 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 18:44:16,247 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 18:44:16,247 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31248 states and 54993 transitions. cyclomatic complexity: 26012 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 18:44:16,873 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31248 states and 54993 transitions. cyclomatic complexity: 26012. 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 65643 states and 115531 transitions. Complement of second has 6 states. [2025-04-26 18:44:16,873 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 18:44:16,874 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 18:44:16,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2025-04-26 18:44:16,874 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 135 transitions. Stem has 10 letters. Loop has 4 letters. [2025-04-26 18:44:16,874 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:16,874 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 135 transitions. Stem has 14 letters. Loop has 4 letters. [2025-04-26 18:44:16,874 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:16,874 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 135 transitions. Stem has 10 letters. Loop has 8 letters. [2025-04-26 18:44:16,874 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:16,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65643 states and 115531 transitions. [2025-04-26 18:44:17,559 INFO L131 ngComponentsAnalysis]: Automaton has 3354 accepting balls. 16125 [2025-04-26 18:44:17,883 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65643 states to 45757 states and 79152 transitions. [2025-04-26 18:44:17,884 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23809 [2025-04-26 18:44:17,924 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25247 [2025-04-26 18:44:17,925 INFO L74 IsDeterministic]: Start isDeterministic. Operand 45757 states and 79152 transitions. [2025-04-26 18:44:17,925 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:44:17,925 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45757 states and 79152 transitions. [2025-04-26 18:44:17,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45757 states and 79152 transitions. [2025-04-26 18:44:18,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45757 to 44459. [2025-04-26 18:44:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44459 states, 44459 states have (on average 1.7388830158123214) internal successors, (in total 77309), 44458 states have internal predecessors, (77309), 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 18:44:19,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44459 states to 44459 states and 77309 transitions. [2025-04-26 18:44:19,064 INFO L240 hiAutomatonCegarLoop]: Abstraction has 44459 states and 77309 transitions. [2025-04-26 18:44:19,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:44:19,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 18:44:19,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 18:44:19,064 INFO L87 Difference]: Start difference. First operand 44459 states and 77309 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 18:44:19,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:44:19,517 INFO L93 Difference]: Finished difference Result 72425 states and 126000 transitions. [2025-04-26 18:44:19,517 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72425 states and 126000 transitions. [2025-04-26 18:44:20,286 INFO L131 ngComponentsAnalysis]: Automaton has 6469 accepting balls. 30167 [2025-04-26 18:44:20,902 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72425 states to 69592 states and 120620 transitions. [2025-04-26 18:44:20,902 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41905 [2025-04-26 18:44:20,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43482 [2025-04-26 18:44:20,981 INFO L74 IsDeterministic]: Start isDeterministic. Operand 69592 states and 120620 transitions. [2025-04-26 18:44:20,981 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:44:20,981 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69592 states and 120620 transitions. [2025-04-26 18:44:21,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69592 states and 120620 transitions. [2025-04-26 18:44:22,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69592 to 59128. [2025-04-26 18:44:22,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59128 states, 59128 states have (on average 1.7555980246245433) internal successors, (in total 103805), 59127 states have internal predecessors, (103805), 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 18:44:22,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59128 states to 59128 states and 103805 transitions. [2025-04-26 18:44:22,261 INFO L240 hiAutomatonCegarLoop]: Abstraction has 59128 states and 103805 transitions. [2025-04-26 18:44:22,261 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 18:44:22,261 INFO L438 stractBuchiCegarLoop]: Abstraction has 59128 states and 103805 transitions. [2025-04-26 18:44:22,262 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 18:44:22,262 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59128 states and 103805 transitions. [2025-04-26 18:44:22,806 INFO L131 ngComponentsAnalysis]: Automaton has 4841 accepting balls. 23121 [2025-04-26 18:44:22,806 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:44:22,806 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:44:22,809 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 18:44:22,809 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 18:44:22,809 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L20: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f6_1 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0) (= v_x6_1 0)) InVars {f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[183] L20-->L41-1: Formula: (= v_thread1Thread1of1ForFork5_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork5_thidvar0=v_thread1Thread1of1ForFork5_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_thidvar0]" "[131] L41-1-->L39: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[133] L39-->L40: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[134] L40-->L41: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[168] L20-1-->L52: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[137] L52-->L54: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" "[171] L21-->L67: 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]" "[143] L67-->L69: 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[]" "[174] L22-->L82: 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]" "[149] L82-->L84: Formula: (< v_x4_5 v_z_8) InVars {x4=v_x4_5, z=v_z_8} OutVars{x4=v_x4_5, z=v_z_8} AuxVars[] AssignedVars[]" "[177] L23-->L97: 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 18:44:22,809 INFO L754 eck$LassoCheckResult]: Loop: "[155] L97-->L99: 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[]" "[157] L99-->L99-1: Formula: (and (= v_f5_5 0) (< 0 v_f5_6)) InVars {f5=v_f5_6} OutVars{f5=v_f5_5} AuxVars[] AssignedVars[f5]" "[158] L99-1-->L105: Formula: (= v_x5_3 (+ v_x5_4 1)) InVars {x5=v_x5_4} OutVars{x5=v_x5_3} AuxVars[] AssignedVars[x5]" "[159] L105-->L97: Formula: (= v_f6_2 1) InVars {} OutVars{f6=v_f6_2} AuxVars[] AssignedVars[f6]" [2025-04-26 18:44:22,810 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:22,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1850332143, now seen corresponding path program 1 times [2025-04-26 18:44:22,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:22,810 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339199420] [2025-04-26 18:44:22,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:22,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:22,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 18:44:22,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 18:44:22,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:22,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:22,816 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:22,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 18:44:22,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 18:44:22,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:22,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:22,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:22,830 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:22,830 INFO L85 PathProgramCache]: Analyzing trace with hash 5697060, now seen corresponding path program 1 times [2025-04-26 18:44:22,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:22,830 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049937816] [2025-04-26 18:44:22,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:22,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:22,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:44:22,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:44:22,838 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:22,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:22,838 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:22,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:44:22,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:44:22,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:22,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:22,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:22,847 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:22,847 INFO L85 PathProgramCache]: Analyzing trace with hash 871928372, now seen corresponding path program 1 times [2025-04-26 18:44:22,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:22,847 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95831244] [2025-04-26 18:44:22,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:22,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:22,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 18:44:22,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 18:44:22,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:22,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:22,898 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 18:44:22,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:44:22,898 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95831244] [2025-04-26 18:44:22,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95831244] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:44:22,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:44:22,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 18:44:22,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257420608] [2025-04-26 18:44:22,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:44:22,928 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:22,928 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:22,928 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:22,928 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:22,928 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:44:22,929 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:22,929 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:22,929 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:22,929 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration5_Loop [2025-04-26 18:44:22,929 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:22,929 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:22,929 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:22,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:22,938 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:22,979 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:22,979 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:44:22,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:22,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:22,983 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 18:44:22,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-04-26 18:44:22,987 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:22,987 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:23,000 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:44:23,000 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f6=1} Honda state: {f6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:44:23,006 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 18:44:23,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:23,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:23,008 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 18:44:23,009 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 18:44:23,011 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:23,011 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:23,027 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 18:44:23,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:23,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:23,029 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 18:44:23,030 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 18:44:23,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:44:23,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:23,112 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:44:23,116 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 18:44:23,116 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:23,116 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:23,116 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:23,116 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:23,116 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:44:23,116 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:23,116 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:23,116 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:23,116 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration5_Loop [2025-04-26 18:44:23,117 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:23,117 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:23,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:23,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:23,124 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:23,156 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:23,156 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:44:23,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:23,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:23,158 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 18:44:23,161 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 18:44:23,163 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 18:44:23,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:23,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:23,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:23,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:23,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:23,176 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:23,176 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:23,178 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:44:23,180 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:44:23,180 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 18:44:23,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:23,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:23,182 INFO L229 MonitoredProcess]: Starting monitored process 27 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 18:44:23,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-04-26 18:44:23,185 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:44:23,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:23,189 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:44:23,189 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:44:23,189 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x5) = 1*z - 1*x5 Supporting invariants [] [2025-04-26 18:44:23,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:23,198 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:44:23,212 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:23,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 18:44:23,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 18:44:23,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:23,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:23,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:44:23,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:23,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:44:23,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:44:23,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:23,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:23,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:44:23,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:23,296 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 18:44:23,297 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 18:44:23,297 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59128 states and 103805 transitions. cyclomatic complexity: 53179 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 18:44:24,324 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59128 states and 103805 transitions. cyclomatic complexity: 53179. 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 146816 states and 260186 transitions. Complement of second has 6 states. [2025-04-26 18:44:24,325 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 18:44:24,325 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 18:44:24,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2025-04-26 18:44:24,326 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 134 transitions. Stem has 12 letters. Loop has 4 letters. [2025-04-26 18:44:24,326 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:24,326 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 134 transitions. Stem has 16 letters. Loop has 4 letters. [2025-04-26 18:44:24,326 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:24,326 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 134 transitions. Stem has 12 letters. Loop has 8 letters. [2025-04-26 18:44:24,326 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:24,326 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146816 states and 260186 transitions. [2025-04-26 18:44:25,964 INFO L131 ngComponentsAnalysis]: Automaton has 4599 accepting balls. 20236 [2025-04-26 18:44:26,345 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146816 states to 71311 states and 124749 transitions. [2025-04-26 18:44:26,345 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27058 [2025-04-26 18:44:26,375 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28185 [2025-04-26 18:44:26,375 INFO L74 IsDeterministic]: Start isDeterministic. Operand 71311 states and 124749 transitions. [2025-04-26 18:44:26,375 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:44:26,375 INFO L218 hiAutomatonCegarLoop]: Abstraction has 71311 states and 124749 transitions. [2025-04-26 18:44:26,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71311 states and 124749 transitions. [2025-04-26 18:44:27,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71311 to 69263. [2025-04-26 18:44:27,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69263 states, 69263 states have (on average 1.751526789194808) internal successors, (in total 121316), 69262 states have internal predecessors, (121316), 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 18:44:27,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69263 states to 69263 states and 121316 transitions. [2025-04-26 18:44:27,749 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69263 states and 121316 transitions. [2025-04-26 18:44:27,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:44:27,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 18:44:27,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 18:44:27,750 INFO L87 Difference]: Start difference. First operand 69263 states and 121316 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 18:44:28,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:44:28,589 INFO L93 Difference]: Finished difference Result 108404 states and 186650 transitions. [2025-04-26 18:44:28,590 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108404 states and 186650 transitions. [2025-04-26 18:44:29,723 INFO L131 ngComponentsAnalysis]: Automaton has 6978 accepting balls. 31392 [2025-04-26 18:44:30,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108404 states to 106045 states and 182923 transitions. [2025-04-26 18:44:30,345 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41244 [2025-04-26 18:44:30,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43361 [2025-04-26 18:44:30,397 INFO L74 IsDeterministic]: Start isDeterministic. Operand 106045 states and 182923 transitions. [2025-04-26 18:44:30,397 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:44:30,397 INFO L218 hiAutomatonCegarLoop]: Abstraction has 106045 states and 182923 transitions. [2025-04-26 18:44:30,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106045 states and 182923 transitions. [2025-04-26 18:44:31,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106045 to 81769. [2025-04-26 18:44:31,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81769 states, 81769 states have (on average 1.7221440888356223) internal successors, (in total 140818), 81768 states have internal predecessors, (140818), 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 18:44:32,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81769 states to 81769 states and 140818 transitions. [2025-04-26 18:44:32,019 INFO L240 hiAutomatonCegarLoop]: Abstraction has 81769 states and 140818 transitions. [2025-04-26 18:44:32,020 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 18:44:32,020 INFO L438 stractBuchiCegarLoop]: Abstraction has 81769 states and 140818 transitions. [2025-04-26 18:44:32,020 INFO L340 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-04-26 18:44:32,020 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81769 states and 140818 transitions. [2025-04-26 18:44:32,668 INFO L131 ngComponentsAnalysis]: Automaton has 4659 accepting balls. 21342 [2025-04-26 18:44:32,668 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:44:32,668 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:44:32,671 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 18:44:32,671 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 18:44:32,672 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L20: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f6_1 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0) (= v_x6_1 0)) InVars {f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[183] L20-->L41-1: Formula: (= v_thread1Thread1of1ForFork5_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork5_thidvar0=v_thread1Thread1of1ForFork5_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_thidvar0]" "[131] L41-1-->L39: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[133] L39-->L40: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[134] L40-->L41: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[168] L20-1-->L52: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[137] L52-->L54: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" "[171] L21-->L67: 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]" "[143] L67-->L69: 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[]" "[174] L22-->L82: 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]" "[149] L82-->L84: Formula: (< v_x4_5 v_z_8) InVars {x4=v_x4_5, z=v_z_8} OutVars{x4=v_x4_5, z=v_z_8} AuxVars[] AssignedVars[]" "[177] L23-->L97: 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]" "[155] L97-->L99: 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[]" "[180] L24-->L112: Formula: (and (= v_thread6Thread1of1ForFork4_thidvar1_2 6) (= v_thread6Thread1of1ForFork4_thidvar2_2 6) (= v_thread6Thread1of1ForFork4_thidvar3_2 6) (= v_thread6Thread1of1ForFork4_thidvar0_2 6) (= v_thread6Thread1of1ForFork4_thidvar5_2 6) (= v_thread6Thread1of1ForFork4_thidvar4_2 6)) InVars {} OutVars{thread6Thread1of1ForFork4_thidvar0=v_thread6Thread1of1ForFork4_thidvar0_2, thread6Thread1of1ForFork4_thidvar1=v_thread6Thread1of1ForFork4_thidvar1_2, thread6Thread1of1ForFork4_thidvar2=v_thread6Thread1of1ForFork4_thidvar2_2, thread6Thread1of1ForFork4_thidvar3=v_thread6Thread1of1ForFork4_thidvar3_2, thread6Thread1of1ForFork4_thidvar4=v_thread6Thread1of1ForFork4_thidvar4_2, thread6Thread1of1ForFork4_thidvar5=v_thread6Thread1of1ForFork4_thidvar5_2} AuxVars[] AssignedVars[thread6Thread1of1ForFork4_thidvar0, thread6Thread1of1ForFork4_thidvar1, thread6Thread1of1ForFork4_thidvar2, thread6Thread1of1ForFork4_thidvar3, thread6Thread1of1ForFork4_thidvar4, thread6Thread1of1ForFork4_thidvar5]" "[161] L112-->L114: Formula: (< v_x6_2 v_z_11) InVars {x6=v_x6_2, z=v_z_11} OutVars{x6=v_x6_2, z=v_z_11} AuxVars[] AssignedVars[]" [2025-04-26 18:44:32,672 INFO L754 eck$LassoCheckResult]: Loop: "[163] L114-->L114-1: Formula: (and (< 0 v_f6_6) (= v_f6_5 0)) InVars {f6=v_f6_6} OutVars{f6=v_f6_5} AuxVars[] AssignedVars[f6]" "[164] L114-1-->L120: Formula: (= (+ v_x6_4 1) v_x6_3) InVars {x6=v_x6_4} OutVars{x6=v_x6_3} AuxVars[] AssignedVars[x6]" "[165] L120-->L112: Formula: (= v_f1_4 1) InVars {} OutVars{f1=v_f1_4} AuxVars[] AssignedVars[f1]" "[161] L112-->L114: Formula: (< v_x6_2 v_z_11) InVars {x6=v_x6_2, z=v_z_11} OutVars{x6=v_x6_2, z=v_z_11} AuxVars[] AssignedVars[]" "[135] L41-->L41-1: Formula: (and (< 0 v_f1_6) (= v_f1_5 0)) InVars {f1=v_f1_6} OutVars{f1=v_f1_5} AuxVars[] AssignedVars[f1]" "[131] L41-1-->L39: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[133] L39-->L40: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[134] L40-->L41: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[139] L54-->L54-1: Formula: (and (< 0 v_f2_6) (= v_f2_5 0)) InVars {f2=v_f2_6} OutVars{f2=v_f2_5} AuxVars[] AssignedVars[f2]" "[140] L54-1-->L60: Formula: (= v_x2_3 (+ v_x2_4 1)) InVars {x2=v_x2_4} OutVars{x2=v_x2_3} AuxVars[] AssignedVars[x2]" "[141] L60-->L52: Formula: (= v_f3_1 1) InVars {} OutVars{f3=v_f3_1} AuxVars[] AssignedVars[f3]" "[137] L52-->L54: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" "[145] L69-->L69-1: Formula: (and (< 0 v_f3_6) (= v_f3_5 0)) InVars {f3=v_f3_6} OutVars{f3=v_f3_5} AuxVars[] AssignedVars[f3]" "[146] L69-1-->L75: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" "[147] L75-->L67: Formula: (= v_f4_1 1) InVars {} OutVars{f4=v_f4_1} AuxVars[] AssignedVars[f4]" "[143] L67-->L69: 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[]" [2025-04-26 18:44:32,672 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:32,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1634440553, now seen corresponding path program 1 times [2025-04-26 18:44:32,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:32,672 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388298533] [2025-04-26 18:44:32,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:32,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:32,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-26 18:44:32,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-26 18:44:32,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:32,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:32,680 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:32,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-26 18:44:32,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-26 18:44:32,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:32,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:32,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:32,692 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:32,692 INFO L85 PathProgramCache]: Analyzing trace with hash 683250997, now seen corresponding path program 1 times [2025-04-26 18:44:32,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:32,692 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647403137] [2025-04-26 18:44:32,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:32,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:32,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 18:44:32,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 18:44:32,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:32,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:32,699 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:32,703 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 18:44:32,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 18:44:32,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:32,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:32,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:32,711 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:32,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1195240501, now seen corresponding path program 1 times [2025-04-26 18:44:32,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:32,712 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471797625] [2025-04-26 18:44:32,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:32,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:32,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-04-26 18:44:32,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-04-26 18:44:32,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:32,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:32,750 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-26 18:44:32,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:44:32,750 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471797625] [2025-04-26 18:44:32,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471797625] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:44:32,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:44:32,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 18:44:32,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495648591] [2025-04-26 18:44:32,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:44:32,912 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:32,912 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:32,912 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:32,912 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:32,912 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:44:32,912 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:32,912 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:32,912 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:32,912 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration6_Loop [2025-04-26 18:44:32,912 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:32,913 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:32,913 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:32,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:32,919 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:32,931 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:32,935 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:32,938 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:33,011 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:33,011 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:44:33,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:33,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:33,014 INFO L229 MonitoredProcess]: Starting monitored process 28 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 18:44:33,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-04-26 18:44:33,015 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:33,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:33,027 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:44:33,027 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f3=0} Honda state: {f3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:44:33,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2025-04-26 18:44:33,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:33,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:33,039 INFO L229 MonitoredProcess]: Starting monitored process 29 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 18:44:33,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-04-26 18:44:33,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:33,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:33,052 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:44:33,053 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f4=1} Honda state: {f4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:44:33,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-04-26 18:44:33,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:33,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:33,060 INFO L229 MonitoredProcess]: Starting monitored process 30 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 18:44:33,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-04-26 18:44:33,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:33,062 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:33,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2025-04-26 18:44:33,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:33,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:33,090 INFO L229 MonitoredProcess]: Starting monitored process 31 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 18:44:33,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-04-26 18:44:33,092 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:44:33,092 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:33,406 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:44:33,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2025-04-26 18:44:33,414 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:33,414 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:33,414 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:33,414 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:33,415 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:44:33,415 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:33,415 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:33,415 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:33,415 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration6_Loop [2025-04-26 18:44:33,415 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:33,415 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:33,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:33,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:33,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:33,450 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:33,454 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:33,456 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:33,544 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:33,545 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:44:33,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:33,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:33,547 INFO L229 MonitoredProcess]: Starting monitored process 32 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 18:44:33,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-04-26 18:44:33,549 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 18:44:33,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:33,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:33,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:33,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:33,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:33,559 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:33,559 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:33,560 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:44:33,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2025-04-26 18:44:33,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:33,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:33,568 INFO L229 MonitoredProcess]: Starting monitored process 33 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 18:44:33,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-04-26 18:44:33,570 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 18:44:33,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:33,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:33,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:33,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:33,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:33,581 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:33,581 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:33,583 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:44:33,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:33,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:33,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:33,591 INFO L229 MonitoredProcess]: Starting monitored process 34 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 18:44:33,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2025-04-26 18:44:33,594 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 18:44:33,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:33,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:33,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:33,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:33,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:33,607 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:33,607 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:33,614 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:44:33,621 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:44:33,621 INFO L437 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 18:44:33,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:33,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:33,623 INFO L229 MonitoredProcess]: Starting monitored process 35 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 18:44:33,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2025-04-26 18:44:33,630 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:44:33,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:33,634 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:44:33,634 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:44:33,634 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x3) = 1*z - 1*x3 Supporting invariants [] [2025-04-26 18:44:33,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:33,641 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:44:33,654 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:33,669 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-26 18:44:33,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-26 18:44:33,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:33,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:33,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:44:33,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:33,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 18:44:33,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 18:44:33,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:33,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:33,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:44:33,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:33,759 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 18:44:33,759 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 18:44:33,759 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 81769 states and 140818 transitions. cyclomatic complexity: 67902 Second operand has 4 states, 4 states have (on average 7.75) internal successors, (in total 31), 4 states have internal predecessors, (31), 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 18:44:35,169 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 81769 states and 140818 transitions. cyclomatic complexity: 67902. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (in total 31), 4 states have internal predecessors, (31), 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 215277 states and 372309 transitions. Complement of second has 6 states. [2025-04-26 18:44:35,170 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 18:44:35,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 7.75) internal successors, (in total 31), 4 states have internal predecessors, (31), 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 18:44:35,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2025-04-26 18:44:35,170 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 134 transitions. Stem has 15 letters. Loop has 16 letters. [2025-04-26 18:44:35,170 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:35,170 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 134 transitions. Stem has 31 letters. Loop has 16 letters. [2025-04-26 18:44:35,171 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:35,171 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 134 transitions. Stem has 15 letters. Loop has 32 letters. [2025-04-26 18:44:35,171 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:35,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215277 states and 372309 transitions. [2025-04-26 18:44:37,146 INFO L131 ngComponentsAnalysis]: Automaton has 4895 accepting balls. 21416 [2025-04-26 18:44:38,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215277 states to 188618 states and 324441 transitions. [2025-04-26 18:44:38,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32616 [2025-04-26 18:44:38,557 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36920 [2025-04-26 18:44:38,557 INFO L74 IsDeterministic]: Start isDeterministic. Operand 188618 states and 324441 transitions. [2025-04-26 18:44:38,557 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:44:38,557 INFO L218 hiAutomatonCegarLoop]: Abstraction has 188618 states and 324441 transitions. [2025-04-26 18:44:38,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188618 states and 324441 transitions. [2025-04-26 18:44:40,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188618 to 163804. [2025-04-26 18:44:41,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163804 states, 163804 states have (on average 1.732827037190789) internal successors, (in total 283844), 163803 states have internal predecessors, (283844), 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 18:44:41,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163804 states to 163804 states and 283844 transitions. [2025-04-26 18:44:41,470 INFO L240 hiAutomatonCegarLoop]: Abstraction has 163804 states and 283844 transitions. [2025-04-26 18:44:41,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:44:41,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 18:44:41,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 18:44:41,471 INFO L87 Difference]: Start difference. First operand 163804 states and 283844 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (in total 31), 2 states have internal predecessors, (31), 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 18:44:41,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:44:41,496 INFO L93 Difference]: Finished difference Result 906 states and 1085 transitions. [2025-04-26 18:44:41,496 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 906 states and 1085 transitions. [2025-04-26 18:44:41,498 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:44:41,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 906 states to 0 states and 0 transitions. [2025-04-26 18:44:41,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 18:44:41,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 18:44:41,498 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 18:44:41,498 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 18:44:41,498 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:44:41,498 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:44:41,501 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 18:44:41,501 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:44:41,501 INFO L340 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-04-26 18:44:41,501 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 18:44:41,502 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:44:41,502 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 18:44:41,513 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 18:44:41,514 INFO L201 PluginConnector]: Adding new model interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 06:44:41 BoogieIcfgContainer [2025-04-26 18:44:41,514 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 18:44:41,514 INFO L158 Benchmark]: Toolchain (without parser) took 50046.89ms. Allocated memory was 159.4MB in the beginning and 7.5GB in the end (delta: 7.3GB). Free memory was 87.1MB in the beginning and 3.6GB in the end (delta: -3.5GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. [2025-04-26 18:44:41,515 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:44:41,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.17ms. Allocated memory is still 159.4MB. Free memory was 87.1MB in the beginning and 85.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:44:41,515 INFO L158 Benchmark]: Boogie Preprocessor took 36.65ms. Allocated memory is still 159.4MB. Free memory was 85.1MB in the beginning and 84.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:44:41,515 INFO L158 Benchmark]: RCFGBuilder took 250.37ms. Allocated memory is still 159.4MB. Free memory was 84.0MB in the beginning and 73.0MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 18:44:41,515 INFO L158 Benchmark]: BuchiAutomizer took 49707.16ms. Allocated memory was 159.4MB in the beginning and 7.5GB in the end (delta: 7.3GB). Free memory was 72.9MB in the beginning and 3.6GB in the end (delta: -3.5GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. [2025-04-26 18:44:41,516 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 0.18ms. Allocated memory is still 159.4MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.17ms. Allocated memory is still 159.4MB. Free memory was 87.1MB in the beginning and 85.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 36.65ms. Allocated memory is still 159.4MB. Free memory was 85.1MB in the beginning and 84.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 250.37ms. Allocated memory is still 159.4MB. Free memory was 84.0MB in the beginning and 73.0MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 49707.16ms. Allocated memory was 159.4MB in the beginning and 7.5GB in the end (delta: 7.3GB). Free memory was 72.9MB in the beginning and 3.6GB in the end (delta: -3.5GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 49.5s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.4s. Büchi inclusion checks took 19.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 10. Automata minimization 14.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 118442 StatesRemovedByMinimization, 11 NontrivialMinimizations. Non-live state removal took 14.9s Buchi closure took 0.6s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [6, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 700 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 694 mSDsluCounter, 785 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 350 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 574 IncrementalHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 435 mSDtfsCounter, 574 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT6 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital27 mio100 ax100 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq151 hnf94 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 122ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 4.8s InitialAbstraction: Time to compute Ample Reduction [ms]: 4737, Number of transitions in reduction automaton: 40801, Number of states in reduction automaton: 20990, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 12 terminating modules (6 trivial, 6 deterministic, 0 nondeterministic). One deterministic module has affine ranking function f1 and consists of 3 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. One deterministic module has affine ranking function -1 * x3 + z and consists of 4 locations. 6 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 18:44:41,529 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...