/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/3_thr/pc3.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:57:04,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:57:04,768 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 16:57:04,771 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:57:04,771 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:57:04,771 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 16:57:04,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 16:57:04,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:57:04,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:57:04,791 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:57:04,792 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:57:04,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:57:04,793 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:57:04,793 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:57:04,793 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:57:04,793 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:57:04,793 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:57:04,793 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 16:57:04,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:57:04,794 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:57:04,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:57:04,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:57:04,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:57:04,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 16:57:04,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 16:57:04,795 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 16:57:04,795 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:57:04,795 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:57:04,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:57:05,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:57:05,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:57:05,003 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:57:05,003 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:57:05,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/3_thr/pc3.c.bpl [2025-04-26 16:57:05,006 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/3_thr/pc3.c.bpl' [2025-04-26 16:57:05,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:57:05,017 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:57:05,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:57:05,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:57:05,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:57:05,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pc3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pc3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,047 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:57:05,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:57:05,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:57:05,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:57:05,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:57:05,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pc3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pc3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pc3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pc3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,054 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "pc3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,055 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pc3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pc3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "pc3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,057 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pc3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:57:05,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:57:05,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:57:05,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:57:05,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pc3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/1) ... [2025-04-26 16:57:05,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:57:05,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:05,085 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 16:57:05,091 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 16:57:05,108 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:57:05,109 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:57:05,109 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:57:05,109 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:57:05,109 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:57:05,109 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:57:05,109 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:57:05,109 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:57:05,109 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:57:05,109 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:57:05,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:57:05,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:57:05,110 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 16:57:05,143 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:57:05,144 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:57:05,219 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:57:05,219 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:57:05,229 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:57:05,230 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:57:05,231 INFO L201 PluginConnector]: Adding new model pc3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:57:05 BoogieIcfgContainer [2025-04-26 16:57:05,231 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:57:05,232 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:57:05,232 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:57:05,236 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:57:05,237 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:57:05,237 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pc3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:05" (1/2) ... [2025-04-26 16:57:05,238 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49c2a1ae and model type pc3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:57:05, skipping insertion in model container [2025-04-26 16:57:05,238 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:57:05,238 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pc3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:57:05" (2/2) ... [2025-04-26 16:57:05,239 INFO L376 chiAutomizerObserver]: Analyzing ICFG pc3.c.bpl [2025-04-26 16:57:05,291 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-26 16:57:05,336 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 16:57:05,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 16:57:05,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:05,341 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 16:57:05,342 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 16:57:05,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 85 flow [2025-04-26 16:57:05,410 INFO L116 PetriNetUnfolderBase]: 3/26 cut-off events. [2025-04-26 16:57:05,415 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-26 16:57:05,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 3/26 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 51 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2025-04-26 16:57:05,420 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 85 flow [2025-04-26 16:57:05,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 70 flow [2025-04-26 16:57:05,425 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 33 places, 26 transitions, 70 flow [2025-04-26 16:57:05,430 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 16:57:05,592 WARN L140 AmpleReduction]: Number of pruned transitions: 392 [2025-04-26 16:57:05,592 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 16:57:05,592 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 67 [2025-04-26 16:57:05,592 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:22 [2025-04-26 16:57:05,592 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:212 [2025-04-26 16:57:05,592 WARN L145 AmpleReduction]: Times succ was already a loop node:19 [2025-04-26 16:57:05,592 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:101 [2025-04-26 16:57:05,592 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 16:57:05,596 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 302 states, 301 states have (on average 1.6511627906976745) internal successors, (in total 497), 301 states have internal predecessors, (497), 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 16:57:05,602 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:57:05,602 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:57:05,602 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:57:05,602 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:57:05,602 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:57:05,602 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:57:05,602 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:57:05,602 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:57:05,604 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 302 states, 301 states have (on average 1.6511627906976745) internal successors, (in total 497), 301 states have internal predecessors, (497), 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 16:57:05,619 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 210 [2025-04-26 16:57:05,619 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:57:05,619 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:57:05,623 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:57:05,623 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:57:05,623 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:57:05,624 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 302 states, 301 states have (on average 1.6511627906976745) internal successors, (in total 497), 301 states have internal predecessors, (497), 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 16:57:05,629 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 210 [2025-04-26 16:57:05,629 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:57:05,629 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:57:05,629 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:57:05,629 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:57:05,632 INFO L752 eck$LassoCheckResult]: Stem: "[58] $Ultimate##0-->L14: Formula: (= v_f_6 0) InVars {f=v_f_6} OutVars{f=v_f_6} AuxVars[] AssignedVars[]" "[82] L14-->L25: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:57:05,633 INFO L754 eck$LassoCheckResult]: Loop: "[63] L25-->L27: Formula: (< v_x1_1 v_z1_1) InVars {x1=v_x1_1, z1=v_z1_1} OutVars{x1=v_x1_1, z1=v_z1_1} AuxVars[] AssignedVars[]" "[65] L27-->L28: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[67] L28-->L25: Formula: (= (+ v_c_2 1) v_c_1) InVars {c=v_c_2} OutVars{c=v_c_1} AuxVars[] AssignedVars[c]" [2025-04-26 16:57:05,636 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:05,636 INFO L85 PathProgramCache]: Analyzing trace with hash 2841, now seen corresponding path program 1 times [2025-04-26 16:57:05,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:05,641 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163641008] [2025-04-26 16:57:05,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:05,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:05,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:57:05,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:57:05,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:05,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:05,694 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:05,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:57:05,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:57:05,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:05,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:05,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:05,710 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:05,710 INFO L85 PathProgramCache]: Analyzing trace with hash 92416, now seen corresponding path program 1 times [2025-04-26 16:57:05,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:05,710 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207270537] [2025-04-26 16:57:05,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:05,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:05,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:05,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:05,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:05,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:05,720 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:05,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:05,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:05,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:05,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:05,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:05,726 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:05,726 INFO L85 PathProgramCache]: Analyzing trace with hash 84698856, now seen corresponding path program 1 times [2025-04-26 16:57:05,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:05,726 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280966863] [2025-04-26 16:57:05,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:05,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:05,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:57:05,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:57:05,762 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:05,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:05,762 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:05,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:57:05,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:57:05,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:05,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:05,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:05,829 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:57:05,829 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:57:05,829 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:57:05,830 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:57:05,830 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:57:05,830 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:05,830 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:57:05,830 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:57:05,830 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc3.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:57:05,830 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:57:05,830 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:57:05,868 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:05,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:05,937 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:57:05,937 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:57:05,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:05,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:05,965 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 16:57:05,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:57:05,971 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:05,971 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 16:57:06,000 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 16:57:06,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,004 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 16:57:06,005 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 16:57:06,010 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:57:06,010 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:06,059 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:57:06,060 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=-3}, {c=-3}, {c=7}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-04-26 16:57:06,067 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 16:57:06,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,069 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 16:57:06,071 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 16:57:06,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:57:06,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:06,089 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 16:57:06,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,091 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 16:57:06,092 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 16:57:06,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:57:06,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:06,160 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:57:06,165 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 16:57:06,165 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:57:06,166 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:57:06,166 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:57:06,166 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:57:06,166 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:57:06,166 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,166 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:57:06,166 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:57:06,166 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc3.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:57:06,166 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:57:06,166 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:57:06,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:06,174 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:06,211 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:57:06,214 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:57:06,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,218 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 16:57:06,221 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 16:57:06,222 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 16:57:06,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:57:06,233 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:57:06,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:57:06,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:57:06,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:57:06,240 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:57:06,240 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:57:06,243 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:57:06,249 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 16:57:06,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,251 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 16:57:06,254 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 16:57:06,255 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:57:06,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:57:06,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:57:06,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:57:06,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:57:06,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:57:06,267 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:57:06,267 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:57:06,272 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:57:06,275 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:57:06,275 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:57:06,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,279 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 16:57:06,281 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 16:57:06,282 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:57:06,285 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:57:06,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-04-26 16:57:06,286 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:57:06,287 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:57:06,287 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z1, x1) = 1*z1 - 1*x1 Supporting invariants [] [2025-04-26 16:57:06,293 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 16:57:06,297 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:57:06,325 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:06,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:57:06,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:57:06,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:57:06,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:57:06,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:57:06,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:06,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:06,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:57:06,349 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:57:06,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:57:06,411 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 16:57:06,426 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 16:57:06,427 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 302 states, 301 states have (on average 1.6511627906976745) internal successors, (in total 497), 301 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (in total 5), 4 states have internal predecessors, (5), 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 16:57:06,540 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 302 states, 301 states have (on average 1.6511627906976745) internal successors, (in total 497), 301 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (in total 5), 4 states have internal predecessors, (5), 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 618 states and 1038 transitions. Complement of second has 6 states. [2025-04-26 16:57:06,541 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 16:57:06,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (in total 5), 4 states have internal predecessors, (5), 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 16:57:06,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 56 transitions. [2025-04-26 16:57:06,551 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 56 transitions. Stem has 2 letters. Loop has 3 letters. [2025-04-26 16:57:06,554 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:06,554 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 56 transitions. Stem has 5 letters. Loop has 3 letters. [2025-04-26 16:57:06,554 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:06,554 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 56 transitions. Stem has 2 letters. Loop has 6 letters. [2025-04-26 16:57:06,554 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:06,555 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 618 states and 1038 transitions. [2025-04-26 16:57:06,566 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 81 [2025-04-26 16:57:06,574 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 618 states to 343 states and 558 transitions. [2025-04-26 16:57:06,575 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 170 [2025-04-26 16:57:06,577 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 220 [2025-04-26 16:57:06,578 INFO L74 IsDeterministic]: Start isDeterministic. Operand 343 states and 558 transitions. [2025-04-26 16:57:06,578 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:57:06,578 INFO L218 hiAutomatonCegarLoop]: Abstraction has 343 states and 558 transitions. [2025-04-26 16:57:06,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states and 558 transitions. [2025-04-26 16:57:06,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 318. [2025-04-26 16:57:06,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 318 states have (on average 1.6761006289308176) internal successors, (in total 533), 317 states have internal predecessors, (533), 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 16:57:06,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 533 transitions. [2025-04-26 16:57:06,615 INFO L240 hiAutomatonCegarLoop]: Abstraction has 318 states and 533 transitions. [2025-04-26 16:57:06,615 INFO L438 stractBuchiCegarLoop]: Abstraction has 318 states and 533 transitions. [2025-04-26 16:57:06,615 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:57:06,615 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 533 transitions. [2025-04-26 16:57:06,617 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 81 [2025-04-26 16:57:06,617 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:57:06,617 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:57:06,617 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-04-26 16:57:06,617 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:57:06,618 INFO L752 eck$LassoCheckResult]: Stem: "[58] $Ultimate##0-->L14: Formula: (= v_f_6 0) InVars {f=v_f_6} OutVars{f=v_f_6} AuxVars[] AssignedVars[]" "[82] L14-->L25: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[62] L25-->L30: Formula: (<= v_z1_2 v_x1_4) InVars {x1=v_x1_4, z1=v_z1_2} OutVars{x1=v_x1_4, z1=v_z1_2} AuxVars[] AssignedVars[]" "[64] L30-->thread1FINAL: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" "[66] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[85] L14-1-->L36: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:57:06,618 INFO L754 eck$LassoCheckResult]: Loop: "[69] L36-->L38: Formula: (< v_x2_1 v_z2_1) InVars {z2=v_z2_1, x2=v_x2_1} OutVars{z2=v_z2_1, x2=v_x2_1} AuxVars[] AssignedVars[]" "[71] L38-->L39: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" "[73] L39-->L36: Formula: (= (+ v_c_4 1) v_c_3) InVars {c=v_c_4} OutVars{c=v_c_3} AuxVars[] AssignedVars[c]" [2025-04-26 16:57:06,619 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:06,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1669333458, now seen corresponding path program 1 times [2025-04-26 16:57:06,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:06,619 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277287467] [2025-04-26 16:57:06,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:06,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:06,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:57:06,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:57:06,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,623 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:06,624 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:57:06,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:57:06,628 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,631 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:06,632 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:06,632 INFO L85 PathProgramCache]: Analyzing trace with hash 98374, now seen corresponding path program 1 times [2025-04-26 16:57:06,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:06,632 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117452519] [2025-04-26 16:57:06,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:06,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:06,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:06,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:06,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,637 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:06,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:06,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:06,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,643 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:06,644 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:06,644 INFO L85 PathProgramCache]: Analyzing trace with hash 313341689, now seen corresponding path program 1 times [2025-04-26 16:57:06,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:06,644 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010783857] [2025-04-26 16:57:06,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:06,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:06,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:57:06,648 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:57:06,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,648 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:06,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:57:06,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:57:06,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:06,654 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:06,677 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:57:06,677 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:57:06,677 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:57:06,677 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:57:06,677 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:57:06,677 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,677 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:57:06,677 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:57:06,677 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc3.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:57:06,678 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:57:06,678 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:57:06,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:06,682 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:06,707 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:57:06,707 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:57:06,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,710 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 16:57:06,711 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 16:57:06,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:57:06,712 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:06,729 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 16:57:06,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,731 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 16:57:06,732 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 16:57:06,734 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:57:06,734 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:06,766 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:57:06,766 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=-3}, {c=-3}, {c=7}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-04-26 16:57:06,771 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 16:57:06,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,773 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 16:57:06,774 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 16:57:06,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:57:06,775 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:06,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-04-26 16:57:06,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,794 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 16:57:06,794 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 16:57:06,797 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:57:06,797 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:06,865 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:57:06,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-04-26 16:57:06,869 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:57:06,869 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:57:06,869 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:57:06,869 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:57:06,869 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:57:06,869 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,869 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:57:06,869 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:57:06,869 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc3.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:57:06,869 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:57:06,870 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:57:06,870 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:06,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:06,900 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:57:06,900 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:57:06,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,902 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 16:57:06,904 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 16:57:06,905 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 16:57:06,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:57:06,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:57:06,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:57:06,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:57:06,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:57:06,917 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:57:06,917 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:57:06,919 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:57:06,924 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 16:57:06,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,927 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 16:57:06,928 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 16:57:06,929 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 16:57:06,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:57:06,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:57:06,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:57:06,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:57:06,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:57:06,940 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:57:06,940 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:57:06,942 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:57:06,944 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:57:06,944 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:57:06,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:06,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:06,946 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 16:57:06,947 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 16:57:06,948 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:57:06,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-04-26 16:57:06,952 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:57:06,952 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:57:06,952 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z2, x2) = 1*z2 - 1*x2 Supporting invariants [] [2025-04-26 16:57:06,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-04-26 16:57:06,958 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:57:06,970 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:06,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:57:06,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:57:06,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:57:06,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:57:06,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:57:06,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:06,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:06,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:06,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:57:06,991 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:57:06,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:57:07,018 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 16:57:07,018 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 16:57:07,019 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 318 states and 533 transitions. cyclomatic complexity: 251 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 16:57:07,055 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 318 states and 533 transitions. cyclomatic complexity: 251. 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 712 states and 1187 transitions. Complement of second has 6 states. [2025-04-26 16:57:07,055 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 16:57:07,056 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 16:57:07,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 58 transitions. [2025-04-26 16:57:07,056 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 58 transitions. Stem has 6 letters. Loop has 3 letters. [2025-04-26 16:57:07,056 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:07,056 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 58 transitions. Stem has 9 letters. Loop has 3 letters. [2025-04-26 16:57:07,056 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:07,056 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 58 transitions. Stem has 6 letters. Loop has 6 letters. [2025-04-26 16:57:07,057 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:07,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 712 states and 1187 transitions. [2025-04-26 16:57:07,061 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2025-04-26 16:57:07,063 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 712 states to 404 states and 664 transitions. [2025-04-26 16:57:07,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 156 [2025-04-26 16:57:07,065 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2025-04-26 16:57:07,065 INFO L74 IsDeterministic]: Start isDeterministic. Operand 404 states and 664 transitions. [2025-04-26 16:57:07,065 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:57:07,065 INFO L218 hiAutomatonCegarLoop]: Abstraction has 404 states and 664 transitions. [2025-04-26 16:57:07,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states and 664 transitions. [2025-04-26 16:57:07,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 379. [2025-04-26 16:57:07,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 379 states have (on average 1.6675461741424802) internal successors, (in total 632), 378 states have internal predecessors, (632), 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 16:57:07,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 632 transitions. [2025-04-26 16:57:07,080 INFO L240 hiAutomatonCegarLoop]: Abstraction has 379 states and 632 transitions. [2025-04-26 16:57:07,080 INFO L438 stractBuchiCegarLoop]: Abstraction has 379 states and 632 transitions. [2025-04-26 16:57:07,080 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:57:07,080 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 379 states and 632 transitions. [2025-04-26 16:57:07,082 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2025-04-26 16:57:07,082 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:57:07,082 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:57:07,082 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:57:07,083 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:57:07,083 INFO L752 eck$LassoCheckResult]: Stem: "[58] $Ultimate##0-->L14: Formula: (= v_f_6 0) InVars {f=v_f_6} OutVars{f=v_f_6} AuxVars[] AssignedVars[]" "[82] L14-->L25: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[62] L25-->L30: Formula: (<= v_z1_2 v_x1_4) InVars {x1=v_x1_4, z1=v_z1_2} OutVars{x1=v_x1_4, z1=v_z1_2} AuxVars[] AssignedVars[]" "[64] L30-->thread1FINAL: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" "[66] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[85] L14-1-->L36: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[68] L36-->L41: Formula: (<= v_z2_2 v_x2_4) InVars {z2=v_z2_2, x2=v_x2_4} OutVars{z2=v_z2_2, x2=v_x2_4} AuxVars[] AssignedVars[]" "[70] L41-->thread2FINAL: Formula: (= (+ v_f_4 1) v_f_3) InVars {f=v_f_4} OutVars{f=v_f_3} AuxVars[] AssignedVars[f]" "[72] thread2FINAL-->thread2EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[88] L15-->$Ultimate##0: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[74] $Ultimate##0-->L48-1: Formula: (< 1 v_f_5) InVars {f=v_f_5} OutVars{f=v_f_5} AuxVars[] AssignedVars[]" [2025-04-26 16:57:07,083 INFO L754 eck$LassoCheckResult]: Loop: "[76] L48-1-->L50: Formula: (< v_y1_1 v_z1_3) InVars {y1=v_y1_1, z1=v_z1_3} OutVars{y1=v_y1_1, z1=v_z1_3} AuxVars[] AssignedVars[]" "[78] L50-->L51: Formula: (= v_y1_2 (+ v_y1_3 1)) InVars {y1=v_y1_3} OutVars{y1=v_y1_2} AuxVars[] AssignedVars[y1]" "[79] L51-->L48-1: Formula: (= (+ v_c_5 1) v_c_6) InVars {c=v_c_6} OutVars{c=v_c_5} AuxVars[] AssignedVars[c]" [2025-04-26 16:57:07,083 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:07,083 INFO L85 PathProgramCache]: Analyzing trace with hash 472700938, now seen corresponding path program 1 times [2025-04-26 16:57:07,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:07,084 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431802112] [2025-04-26 16:57:07,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:07,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:07,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-26 16:57:07,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-26 16:57:07,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:07,090 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:07,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-26 16:57:07,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-26 16:57:07,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:07,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:07,096 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:07,096 INFO L85 PathProgramCache]: Analyzing trace with hash 105324, now seen corresponding path program 1 times [2025-04-26 16:57:07,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:07,097 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976723770] [2025-04-26 16:57:07,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:07,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:07,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:07,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:07,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:07,100 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:07,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:07,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:07,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:07,104 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:07,104 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:07,104 INFO L85 PathProgramCache]: Analyzing trace with hash -964044093, now seen corresponding path program 1 times [2025-04-26 16:57:07,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:07,104 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819392602] [2025-04-26 16:57:07,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:07,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:07,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-26 16:57:07,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-26 16:57:07,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:07,112 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:07,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-26 16:57:07,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-26 16:57:07,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:07,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:07,144 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:57:07,144 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:57:07,144 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:57:07,144 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:57:07,144 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:57:07,144 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,145 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:57:07,145 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:57:07,145 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc3.c.bpl_petrified1_Iteration3_Loop [2025-04-26 16:57:07,145 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:57:07,145 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:57:07,145 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:07,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:07,175 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:57:07,175 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:57:07,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,177 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 16:57:07,179 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 16:57:07,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:57:07,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:07,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-04-26 16:57:07,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,200 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 16:57:07,201 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 16:57:07,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:57:07,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:07,227 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:57:07,227 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=0}, {c=7}, {c=-8}] Lambdas: [0, 1, 1] Nus: [0, 0] [2025-04-26 16:57:07,233 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 16:57:07,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,236 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 16:57:07,237 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 16:57:07,238 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:57:07,238 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:07,256 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 16:57:07,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,262 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 16:57:07,263 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 16:57:07,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:57:07,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:07,330 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:57:07,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-04-26 16:57:07,334 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:57:07,334 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:57:07,334 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:57:07,334 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:57:07,334 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:57:07,334 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,334 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:57:07,335 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:57:07,335 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc3.c.bpl_petrified1_Iteration3_Loop [2025-04-26 16:57:07,335 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:57:07,335 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:57:07,335 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:07,338 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:07,361 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:57:07,361 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:57:07,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,364 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 16:57:07,365 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 16:57:07,365 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 16:57:07,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:57:07,376 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:57:07,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:57:07,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:57:07,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:57:07,377 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:57:07,377 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:57:07,379 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:57:07,385 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 16:57:07,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,387 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 16:57:07,388 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 16:57:07,389 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 16:57:07,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:57:07,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:57:07,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:57:07,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:57:07,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:57:07,400 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:57:07,400 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:57:07,403 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:57:07,406 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:57:07,406 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:57:07,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:07,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,409 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 16:57:07,410 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 16:57:07,411 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:57:07,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-04-26 16:57:07,414 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:57:07,414 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:57:07,414 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(y1, z1) = -1*y1 + 1*z1 Supporting invariants [] [2025-04-26 16:57:07,421 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 16:57:07,422 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:57:07,434 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:07,439 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-26 16:57:07,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-26 16:57:07,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:57:07,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:57:07,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:57:07,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:57:07,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:57:07,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:07,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:57:07,460 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:57:07,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:57:07,493 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 16:57:07,494 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 16:57:07,494 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 379 states and 632 transitions. cyclomatic complexity: 287 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 16:57:07,540 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 379 states and 632 transitions. cyclomatic complexity: 287. 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 724 states and 1203 transitions. Complement of second has 6 states. [2025-04-26 16:57:07,541 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 16:57:07,541 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 16:57:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2025-04-26 16:57:07,541 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 61 transitions. Stem has 11 letters. Loop has 3 letters. [2025-04-26 16:57:07,542 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:07,542 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 61 transitions. Stem has 14 letters. Loop has 3 letters. [2025-04-26 16:57:07,542 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:07,542 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 61 transitions. Stem has 11 letters. Loop has 6 letters. [2025-04-26 16:57:07,542 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:57:07,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 724 states and 1203 transitions. [2025-04-26 16:57:07,555 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:57:07,555 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 724 states to 0 states and 0 transitions. [2025-04-26 16:57:07,555 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:57:07,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:57:07,555 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:57:07,556 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:57:07,556 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:57:07,556 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:57:07,556 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:57:07,556 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:57:07,556 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:57:07,556 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:57:07,556 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:57:07,568 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 16:57:07,570 INFO L201 PluginConnector]: Adding new model pc3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:57:07 BoogieIcfgContainer [2025-04-26 16:57:07,570 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:57:07,571 INFO L158 Benchmark]: Toolchain (without parser) took 2552.95ms. Allocated memory was 159.4MB in the beginning and 167.8MB in the end (delta: 8.4MB). Free memory was 86.7MB in the beginning and 116.2MB in the end (delta: -29.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:57:07,571 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.72ms. Allocated memory is still 159.4MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:57:07,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.94ms. Allocated memory is still 159.4MB. Free memory was 86.7MB in the beginning and 84.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:57:07,571 INFO L158 Benchmark]: Boogie Preprocessor took 14.72ms. Allocated memory is still 159.4MB. Free memory was 84.7MB in the beginning and 82.8MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:57:07,571 INFO L158 Benchmark]: RCFGBuilder took 168.11ms. Allocated memory is still 159.4MB. Free memory was 82.8MB in the beginning and 73.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:57:07,571 INFO L158 Benchmark]: BuchiAutomizer took 2337.78ms. Allocated memory was 159.4MB in the beginning and 167.8MB in the end (delta: 8.4MB). Free memory was 73.9MB in the beginning and 116.2MB in the end (delta: -42.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:57:07,572 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 0.72ms. Allocated memory is still 159.4MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.94ms. Allocated memory is still 159.4MB. Free memory was 86.7MB in the beginning and 84.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 14.72ms. Allocated memory is still 159.4MB. Free memory was 84.7MB in the beginning and 82.8MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 168.11ms. Allocated memory is still 159.4MB. Free memory was 82.8MB in the beginning and 73.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2337.78ms. Allocated memory was 159.4MB in the beginning and 167.8MB in the end (delta: 8.4MB). Free memory was 73.9MB in the beginning and 116.2MB in the end (delta: -42.3MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 50 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 206 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 112 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 94 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp70 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.2s InitialAbstraction: Time to compute Ample Reduction [ms]: 261, Number of transitions in reduction automaton: 497, Number of states in reduction automaton: 302, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + z1 and consists of 4 locations. One deterministic module has affine ranking function z2 + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function -1 * y1 + z1 and consists of 4 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:57:07,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...