/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:22:35,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:22:35,596 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:22:35,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:22:35,600 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:22:35,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:22:35,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:22:35,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:22:35,624 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:22:35,624 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:22:35,625 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:22:35,625 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:22:35,625 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:22:35,626 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:22:35,626 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:22:35,626 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:22:35,627 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:22:35,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:22:35,627 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:22:35,627 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:22:35,627 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:22:35,627 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:22:35,627 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:22:35,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:22:35,627 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:22:35,627 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:22:35,627 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:22:35,627 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:22:35,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:22:35,627 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:22:35,628 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:22:35,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:22:35,628 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:22:35,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:22:35,628 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:22:35,628 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:22:35,628 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:22:35,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:22:35,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:22:35,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:22:35,831 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:22:35,832 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:22:35,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl [2025-04-26 16:22:35,835 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl' [2025-04-26 16:22:35,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:22:35,857 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:22:35,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:22:35,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:22:35,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:22:35,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:35" (1/1) ... [2025-04-26 16:22:35,881 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:35" (1/1) ... [2025-04-26 16:22:35,885 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:22:35,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:22:35,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:22:35,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:22:35,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:22:35,891 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:35" (1/1) ... [2025-04-26 16:22:35,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:35" (1/1) ... [2025-04-26 16:22:35,892 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:35" (1/1) ... [2025-04-26 16:22:35,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:35" (1/1) ... [2025-04-26 16:22:35,894 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:35" (1/1) ... [2025-04-26 16:22:35,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:35" (1/1) ... [2025-04-26 16:22:35,896 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:35" (1/1) ... [2025-04-26 16:22:35,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:35" (1/1) ... [2025-04-26 16:22:35,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:35" (1/1) ... [2025-04-26 16:22:35,903 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:22:35,904 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:22:35,904 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:22:35,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:22:35,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:35" (1/1) ... [2025-04-26 16:22:35,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:35,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:35,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:35,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-04-26 16:22:35,953 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:22:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:22:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:22:35,953 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:22:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:22:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:22:35,953 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:22:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:22:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:22:35,953 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:22:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:22:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:22:35,954 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-04-26 16:22:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 16:22:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 16:22:35,954 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-04-26 16:22:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-26 16:22:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-26 16:22:35,954 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-04-26 16:22:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-26 16:22:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-26 16:22:35,955 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 16:22:35,998 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:22:35,999 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:22:36,129 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:22:36,129 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:22:36,142 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:22:36,142 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2025-04-26 16:22:36,143 INFO L201 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:22:36 BoogieIcfgContainer [2025-04-26 16:22:36,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:22:36,144 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:22:36,144 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:22:36,150 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:22:36,150 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:22:36,151 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:35" (1/2) ... [2025-04-26 16:22:36,152 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54e230e9 and model type barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:22:36, skipping insertion in model container [2025-04-26 16:22:36,152 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:22:36,152 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:22:36" (2/2) ... [2025-04-26 16:22:36,153 INFO L376 chiAutomizerObserver]: Analyzing ICFG barrier-loop.wvr.bpl [2025-04-26 16:22:36,247 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-04-26 16:22:36,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 79 transitions, 224 flow [2025-04-26 16:22:36,329 INFO L116 PetriNetUnfolderBase]: 8/61 cut-off events. [2025-04-26 16:22:36,332 INFO L117 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-04-26 16:22:36,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 61 events. 8/61 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 180 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2025-04-26 16:22:36,337 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 79 transitions, 224 flow [2025-04-26 16:22:36,344 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 61 transitions, 170 flow [2025-04-26 16:22:36,345 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 72 places, 61 transitions, 170 flow [2025-04-26 16:22:36,357 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:22:36,357 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:22:36,357 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:22:36,357 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:22:36,357 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:22:36,357 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:22:36,357 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:22:36,358 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:22:36,359 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:22:37,317 INFO L131 ngComponentsAnalysis]: Automaton has 105 accepting balls. 10752 [2025-04-26 16:22:37,317 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:37,317 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:37,320 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:22:37,320 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:22:37,320 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:22:37,320 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 10821 states, but on-demand construction may add more states [2025-04-26 16:22:37,474 INFO L131 ngComponentsAnalysis]: Automaton has 105 accepting balls. 10752 [2025-04-26 16:22:37,475 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:37,475 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:37,475 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:22:37,475 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:22:37,481 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->L116: Formula: (and (= v_x_0_3 v_x_8_1) (= v_y_9_1 v_y_1_3)) InVars {y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} OutVars{y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} AuxVars[] AssignedVars[]" "[186] L116-->$Ultimate##0: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[130] $Ultimate##0-->L59: Formula: (and (not v_f1_2_6) (not v_f2_3_6)) InVars {} OutVars{f2_3=v_f2_3_6, f1_2=v_f1_2_6} AuxVars[] AssignedVars[f2_3, f1_2]" "[198] L59-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_4) (= 2 v_thread2Thread1of1ForFork0_thidvar1_4)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" [2025-04-26 16:22:37,481 INFO L754 eck$LassoCheckResult]: Loop: "[137] L29-->L31: Formula: (= v_x_0_1 v_temp_4_1) InVars {x_0=v_x_0_1} OutVars{temp_4=v_temp_4_1, x_0=v_x_0_1} AuxVars[] AssignedVars[temp_4]" "[138] L31-->L32: Formula: (= (+ v_temp_4_2 1) v_x_0_2) InVars {temp_4=v_temp_4_2} OutVars{temp_4=v_temp_4_2, x_0=v_x_0_2} AuxVars[] AssignedVars[x_0]" "[139] L32-->L33: Formula: v_f1_2_2 InVars {} OutVars{f1_2=v_f1_2_2} AuxVars[] AssignedVars[f1_2]" "[140] L33-->L34: Formula: v_f2_3_3 InVars {f2_3=v_f2_3_3} OutVars{f2_3=v_f2_3_3} AuxVars[] AssignedVars[]" "[141] L34-->L35: Formula: (= v_y_1_1 v_temp_5_1) InVars {y_1=v_y_1_1} OutVars{y_1=v_y_1_1, temp_5=v_temp_5_1} AuxVars[] AssignedVars[temp_5]" "[142] L35-->L36: Formula: (= (+ v_temp_5_2 1) v_y_1_2) InVars {temp_5=v_temp_5_2} OutVars{y_1=v_y_1_2, temp_5=v_temp_5_2} AuxVars[] AssignedVars[y_1]" "[143] L36-->L37: Formula: (not v_f1_2_3) InVars {} OutVars{f1_2=v_f1_2_3} AuxVars[] AssignedVars[f1_2]" "[144] L37-->L29: Formula: (not v_f2_3_2) InVars {f2_3=v_f2_3_2} OutVars{f2_3=v_f2_3_2} AuxVars[] AssignedVars[]" [2025-04-26 16:22:37,485 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:37,485 INFO L85 PathProgramCache]: Analyzing trace with hash 3996222, now seen corresponding path program 1 times [2025-04-26 16:22:37,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:37,494 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804176931] [2025-04-26 16:22:37,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:37,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:37,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:22:37,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:22:37,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:37,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:37,553 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:37,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:22:37,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:22:37,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:37,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:37,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:37,579 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:37,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1526064251, now seen corresponding path program 1 times [2025-04-26 16:22:37,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:37,579 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502674225] [2025-04-26 16:22:37,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:37,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:37,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:22:37,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:22:37,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:37,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:37,633 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 16:22:37,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:22:37,633 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502674225] [2025-04-26 16:22:37,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502674225] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:22:37,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:22:37,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 16:22:37,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815040915] [2025-04-26 16:22:37,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:22:37,643 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-04-26 16:22:37,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:22:37,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:22:37,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:22:37,721 INFO L87 Difference]: Start difference. First operand currently 10821 states, but on-demand construction may add more states Second operand has 3 states, 2 states have (on average 4.0) internal successors, (in total 8), 3 states have internal predecessors, (8), 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 16:22:38,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:22:38,002 INFO L93 Difference]: Finished difference Result 12900 states and 51687 transitions. [2025-04-26 16:22:38,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12900 states and 51687 transitions. [2025-04-26 16:22:38,198 INFO L131 ngComponentsAnalysis]: Automaton has 179 accepting balls. 12672 [2025-04-26 16:22:38,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12900 states to 12829 states and 51420 transitions. [2025-04-26 16:22:38,461 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12829 [2025-04-26 16:22:38,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12829 [2025-04-26 16:22:38,493 INFO L74 IsDeterministic]: Start isDeterministic. Operand 12829 states and 51420 transitions. [2025-04-26 16:22:38,535 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:22:38,535 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12829 states and 51420 transitions. [2025-04-26 16:22:38,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12829 states and 51420 transitions. [2025-04-26 16:22:39,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12829 to 12829. [2025-04-26 16:22:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12829 states, 12829 states have (on average 4.0081066334086835) internal successors, (in total 51420), 12828 states have internal predecessors, (51420), 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 16:22:39,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12829 states to 12829 states and 51420 transitions. [2025-04-26 16:22:39,140 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12829 states and 51420 transitions. [2025-04-26 16:22:39,140 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:22:39,145 INFO L438 stractBuchiCegarLoop]: Abstraction has 12829 states and 51420 transitions. [2025-04-26 16:22:39,145 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:22:39,146 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12829 states and 51420 transitions. [2025-04-26 16:22:39,250 INFO L131 ngComponentsAnalysis]: Automaton has 179 accepting balls. 12672 [2025-04-26 16:22:39,250 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:39,250 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:39,251 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:22:39,251 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:22:39,252 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->L116: Formula: (and (= v_x_0_3 v_x_8_1) (= v_y_9_1 v_y_1_3)) InVars {y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} OutVars{y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} AuxVars[] AssignedVars[]" "[186] L116-->$Ultimate##0: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[130] $Ultimate##0-->L59: Formula: (and (not v_f1_2_6) (not v_f2_3_6)) InVars {} OutVars{f2_3=v_f2_3_6, f1_2=v_f1_2_6} AuxVars[] AssignedVars[f2_3, f1_2]" "[198] L59-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_4) (= 2 v_thread2Thread1of1ForFork0_thidvar1_4)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[201] L63-->L44: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_4) (= 3 v_thread3Thread1of1ForFork1_thidvar1_4) (= 3 v_thread3Thread1of1ForFork1_thidvar0_4)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" [2025-04-26 16:22:39,252 INFO L754 eck$LassoCheckResult]: Loop: "[146] L44-->L46: Formula: (= v_y_1_5 v_temp_6_1) InVars {y_1=v_y_1_5} OutVars{temp_6=v_temp_6_1, y_1=v_y_1_5} AuxVars[] AssignedVars[temp_6]" "[147] L46-->L47: Formula: (= (+ v_temp_6_2 1) v_y_1_6) InVars {temp_6=v_temp_6_2} OutVars{temp_6=v_temp_6_2, y_1=v_y_1_6} AuxVars[] AssignedVars[y_1]" "[148] L47-->L48: Formula: v_f2_3_4 InVars {} OutVars{f2_3=v_f2_3_4} AuxVars[] AssignedVars[f2_3]" "[149] L48-->L49: Formula: v_f1_2_4 InVars {f1_2=v_f1_2_4} OutVars{f1_2=v_f1_2_4} AuxVars[] AssignedVars[]" "[150] L49-->L50: Formula: (= v_x_0_5 v_temp_7_1) InVars {x_0=v_x_0_5} OutVars{temp_7=v_temp_7_1, x_0=v_x_0_5} AuxVars[] AssignedVars[temp_7]" "[151] L50-->L51: Formula: (= (+ v_temp_7_2 1) v_x_0_6) InVars {temp_7=v_temp_7_2} OutVars{temp_7=v_temp_7_2, x_0=v_x_0_6} AuxVars[] AssignedVars[x_0]" "[152] L51-->L52: Formula: (not v_f2_3_5) InVars {} OutVars{f2_3=v_f2_3_5} AuxVars[] AssignedVars[f2_3]" "[153] L52-->L44: Formula: (not v_f1_2_5) InVars {f1_2=v_f1_2_5} OutVars{f1_2=v_f1_2_5} AuxVars[] AssignedVars[]" [2025-04-26 16:22:39,253 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:39,253 INFO L85 PathProgramCache]: Analyzing trace with hash 123883083, now seen corresponding path program 1 times [2025-04-26 16:22:39,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:39,254 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035950509] [2025-04-26 16:22:39,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:39,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:39,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:39,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:39,263 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:39,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:39,263 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:39,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:39,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:39,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:39,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:39,273 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:39,273 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:39,273 INFO L85 PathProgramCache]: Analyzing trace with hash 938176517, now seen corresponding path program 1 times [2025-04-26 16:22:39,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:39,274 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124004146] [2025-04-26 16:22:39,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:39,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:39,278 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:22:39,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:22:39,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:39,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:39,297 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 16:22:39,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:22:39,297 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124004146] [2025-04-26 16:22:39,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124004146] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:22:39,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:22:39,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 16:22:39,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059453713] [2025-04-26 16:22:39,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:22:39,298 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-04-26 16:22:39,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:22:39,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:22:39,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:22:39,299 INFO L87 Difference]: Start difference. First operand 12829 states and 51420 transitions. cyclomatic complexity: 38770 Second operand has 3 states, 2 states have (on average 4.0) internal successors, (in total 8), 3 states have internal predecessors, (8), 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 16:22:39,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:22:39,468 INFO L93 Difference]: Finished difference Result 12529 states and 48645 transitions. [2025-04-26 16:22:39,468 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12529 states and 48645 transitions. [2025-04-26 16:22:39,631 INFO L131 ngComponentsAnalysis]: Automaton has 241 accepting balls. 12240 [2025-04-26 16:22:39,776 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12529 states to 12453 states and 48313 transitions. [2025-04-26 16:22:39,776 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12453 [2025-04-26 16:22:39,937 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12453 [2025-04-26 16:22:39,937 INFO L74 IsDeterministic]: Start isDeterministic. Operand 12453 states and 48313 transitions. [2025-04-26 16:22:40,005 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:22:40,008 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12453 states and 48313 transitions. [2025-04-26 16:22:40,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12453 states and 48313 transitions. [2025-04-26 16:22:40,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12453 to 12453. [2025-04-26 16:22:40,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12453 states, 12453 states have (on average 3.8796273990203165) internal successors, (in total 48313), 12452 states have internal predecessors, (48313), 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 16:22:40,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12453 states to 12453 states and 48313 transitions. [2025-04-26 16:22:40,291 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12453 states and 48313 transitions. [2025-04-26 16:22:40,291 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:22:40,292 INFO L438 stractBuchiCegarLoop]: Abstraction has 12453 states and 48313 transitions. [2025-04-26 16:22:40,292 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:22:40,293 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12453 states and 48313 transitions. [2025-04-26 16:22:40,488 INFO L131 ngComponentsAnalysis]: Automaton has 241 accepting balls. 12240 [2025-04-26 16:22:40,488 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:40,488 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:40,489 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:22:40,489 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:22:40,490 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->L116: Formula: (and (= v_x_0_3 v_x_8_1) (= v_y_9_1 v_y_1_3)) InVars {y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} OutVars{y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} AuxVars[] AssignedVars[]" "[186] L116-->$Ultimate##0: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[130] $Ultimate##0-->L59: Formula: (and (not v_f1_2_6) (not v_f2_3_6)) InVars {} OutVars{f2_3=v_f2_3_6, f1_2=v_f1_2_6} AuxVars[] AssignedVars[f2_3, f1_2]" "[198] L59-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_4) (= 2 v_thread2Thread1of1ForFork0_thidvar1_4)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[201] L63-->L44: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_4) (= 3 v_thread3Thread1of1ForFork1_thidvar1_4) (= 3 v_thread3Thread1of1ForFork1_thidvar0_4)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" [2025-04-26 16:22:40,491 INFO L754 eck$LassoCheckResult]: Loop: "[137] L29-->L31: Formula: (= v_x_0_1 v_temp_4_1) InVars {x_0=v_x_0_1} OutVars{temp_4=v_temp_4_1, x_0=v_x_0_1} AuxVars[] AssignedVars[temp_4]" "[138] L31-->L32: Formula: (= (+ v_temp_4_2 1) v_x_0_2) InVars {temp_4=v_temp_4_2} OutVars{temp_4=v_temp_4_2, x_0=v_x_0_2} AuxVars[] AssignedVars[x_0]" "[139] L32-->L33: Formula: v_f1_2_2 InVars {} OutVars{f1_2=v_f1_2_2} AuxVars[] AssignedVars[f1_2]" "[140] L33-->L34: Formula: v_f2_3_3 InVars {f2_3=v_f2_3_3} OutVars{f2_3=v_f2_3_3} AuxVars[] AssignedVars[]" "[141] L34-->L35: Formula: (= v_y_1_1 v_temp_5_1) InVars {y_1=v_y_1_1} OutVars{y_1=v_y_1_1, temp_5=v_temp_5_1} AuxVars[] AssignedVars[temp_5]" "[146] L44-->L46: Formula: (= v_y_1_5 v_temp_6_1) InVars {y_1=v_y_1_5} OutVars{temp_6=v_temp_6_1, y_1=v_y_1_5} AuxVars[] AssignedVars[temp_6]" "[147] L46-->L47: Formula: (= (+ v_temp_6_2 1) v_y_1_6) InVars {temp_6=v_temp_6_2} OutVars{temp_6=v_temp_6_2, y_1=v_y_1_6} AuxVars[] AssignedVars[y_1]" "[142] L35-->L36: Formula: (= (+ v_temp_5_2 1) v_y_1_2) InVars {temp_5=v_temp_5_2} OutVars{y_1=v_y_1_2, temp_5=v_temp_5_2} AuxVars[] AssignedVars[y_1]" "[148] L47-->L48: Formula: v_f2_3_4 InVars {} OutVars{f2_3=v_f2_3_4} AuxVars[] AssignedVars[f2_3]" "[149] L48-->L49: Formula: v_f1_2_4 InVars {f1_2=v_f1_2_4} OutVars{f1_2=v_f1_2_4} AuxVars[] AssignedVars[]" "[150] L49-->L50: Formula: (= v_x_0_5 v_temp_7_1) InVars {x_0=v_x_0_5} OutVars{temp_7=v_temp_7_1, x_0=v_x_0_5} AuxVars[] AssignedVars[temp_7]" "[143] L36-->L37: Formula: (not v_f1_2_3) InVars {} OutVars{f1_2=v_f1_2_3} AuxVars[] AssignedVars[f1_2]" "[151] L50-->L51: Formula: (= (+ v_temp_7_2 1) v_x_0_6) InVars {temp_7=v_temp_7_2} OutVars{temp_7=v_temp_7_2, x_0=v_x_0_6} AuxVars[] AssignedVars[x_0]" "[152] L51-->L52: Formula: (not v_f2_3_5) InVars {} OutVars{f2_3=v_f2_3_5} AuxVars[] AssignedVars[f2_3]" "[144] L37-->L29: Formula: (not v_f2_3_2) InVars {f2_3=v_f2_3_2} OutVars{f2_3=v_f2_3_2} AuxVars[] AssignedVars[]" "[153] L52-->L44: Formula: (not v_f1_2_5) InVars {f1_2=v_f1_2_5} OutVars{f1_2=v_f1_2_5} AuxVars[] AssignedVars[]" [2025-04-26 16:22:40,492 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:40,492 INFO L85 PathProgramCache]: Analyzing trace with hash 123883083, now seen corresponding path program 2 times [2025-04-26 16:22:40,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:40,492 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262810111] [2025-04-26 16:22:40,493 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:22:40,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:40,500 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:40,502 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:40,502 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:22:40,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,503 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:40,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:40,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:40,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:40,514 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:40,514 INFO L85 PathProgramCache]: Analyzing trace with hash 382198951, now seen corresponding path program 1 times [2025-04-26 16:22:40,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:40,515 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688186621] [2025-04-26 16:22:40,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:40,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:40,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 16:22:40,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 16:22:40,531 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,531 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:40,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 16:22:40,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 16:22:40,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:40,554 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:40,554 INFO L85 PathProgramCache]: Analyzing trace with hash 753426161, now seen corresponding path program 1 times [2025-04-26 16:22:40,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:40,555 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558184637] [2025-04-26 16:22:40,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:40,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:40,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-26 16:22:40,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-26 16:22:40,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:40,638 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 16:22:40,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:22:40,638 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558184637] [2025-04-26 16:22:40,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558184637] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:22:40,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:22:40,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-26 16:22:40,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929768023] [2025-04-26 16:22:40,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:22:40,744 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:40,745 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:40,745 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:40,745 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:40,745 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:22:40,745 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:40,745 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:40,745 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:40,745 INFO L132 ssoRankerPreferences]: Filename of dumped script: barrier-loop.wvr.bpl_petrified1_Iteration3_Loop [2025-04-26 16:22:40,745 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:40,745 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:40,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:40,763 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:40,770 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:40,773 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:40,837 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:40,837 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:22:40,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:40,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:40,841 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:40,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-04-26 16:22:40,844 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:40,844 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:40,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:40,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:40,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:40,876 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 16:22:40,878 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 16:22:40,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:40,879 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:41,061 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:41,061 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_6=-1, y_1=0, temp_5=-1} Honda state: {temp_6=-1, y_1=0, temp_5=-1} Generalized eigenvectors: [{temp_6=-1, y_1=-1, temp_5=-1}, {temp_6=2, y_1=2, temp_5=2}, {temp_6=0, y_1=0, temp_5=0}] Lambdas: [3, 1, 2] Nus: [1, 1] [2025-04-26 16:22:41,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-04-26 16:22:41,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,070 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 16:22:41,072 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 16:22:41,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:41,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:41,102 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 16:22:41,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,104 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 16:22:41,105 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 16:22:41,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:41,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:41,413 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:41,413 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_4=-26, temp_7=0, x_0=-22} Honda state: {temp_4=-26, temp_7=0, x_0=-22} Generalized eigenvectors: [{temp_4=0, temp_7=-25, x_0=-2}, {temp_4=-2, temp_7=73, x_0=4}, {temp_4=6, temp_7=-69, x_0=0}] Lambdas: [3, 1, 0] Nus: [1, 1] [2025-04-26 16:22:41,422 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 16:22:41,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,423 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 16:22:41,424 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 16:22:41,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:41,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:41,442 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:41,442 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f1_2 1 0)_1=0} Honda state: {v_rep(ite f1_2 1 0)_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:41,448 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 16:22:41,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,450 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 16:22:41,451 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 16:22:41,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:41,453 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:41,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:22:41,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,471 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 16:22:41,472 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 16:22:41,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:41,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:41,495 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:22:41,499 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 16:22:41,499 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:41,499 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:41,499 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:41,499 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:41,499 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:22:41,499 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,499 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:41,500 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:41,500 INFO L132 ssoRankerPreferences]: Filename of dumped script: barrier-loop.wvr.bpl_petrified1_Iteration3_Loop [2025-04-26 16:22:41,500 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:41,500 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:41,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:41,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:41,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:41,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:41,574 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:41,577 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:22:41,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,579 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 16:22:41,581 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 16:22:41,582 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 16:22:41,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:41,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:41,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:41,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:41,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:41,597 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:41,597 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:41,600 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:22:41,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:41,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,609 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 16:22:41,610 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 16:22:41,611 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 16:22:41,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:41,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:41,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:41,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:41,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:41,623 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:41,623 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:41,625 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:22:41,631 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 16:22:41,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,633 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 16:22:41,633 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 16:22:41,635 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 16:22:41,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:41,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:41,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:41,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:41,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:41,645 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:41,645 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:41,646 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:22:41,649 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:22:41,649 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:22:41,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,651 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 16:22:41,653 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 16:22:41,653 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:22:41,656 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 16:22:41,656 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:22:41,657 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:22:41,657 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(ite f2_3 1 0)_2) = 1*v_rep(ite f2_3 1 0)_2 Supporting invariants [] [2025-04-26 16:22:41,663 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 16:22:41,664 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:22:41,681 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:41,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:41,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:41,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:41,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:22:41,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:41,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 16:22:41,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 16:22:41,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:41,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:22:41,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:41,789 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 16:22:41,794 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 16:22:41,796 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12453 states and 48313 transitions. cyclomatic complexity: 36101 Second operand has 5 states, 5 states have (on average 4.2) internal successors, (in total 21), 5 states have internal predecessors, (21), 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 16:22:42,325 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12453 states and 48313 transitions. cyclomatic complexity: 36101. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (in total 21), 5 states have internal predecessors, (21), 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 38677 states and 154863 transitions. Complement of second has 7 states. [2025-04-26 16:22:42,327 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 16:22:42,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.2) internal successors, (in total 21), 5 states have internal predecessors, (21), 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 16:22:42,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2025-04-26 16:22:42,330 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 166 transitions. Stem has 5 letters. Loop has 16 letters. [2025-04-26 16:22:42,331 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:42,331 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 166 transitions. Stem has 21 letters. Loop has 16 letters. [2025-04-26 16:22:42,331 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:42,331 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 166 transitions. Stem has 5 letters. Loop has 32 letters. [2025-04-26 16:22:42,331 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:42,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38677 states and 154863 transitions. [2025-04-26 16:22:42,865 INFO L131 ngComponentsAnalysis]: Automaton has 751 accepting balls. 22032 [2025-04-26 16:22:43,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38677 states to 34391 states and 135472 transitions. [2025-04-26 16:22:43,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23709 [2025-04-26 16:22:43,395 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27493 [2025-04-26 16:22:43,396 INFO L74 IsDeterministic]: Start isDeterministic. Operand 34391 states and 135472 transitions. [2025-04-26 16:22:43,396 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:22:43,396 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34391 states and 135472 transitions. [2025-04-26 16:22:43,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34391 states and 135472 transitions. [2025-04-26 16:22:44,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34391 to 25753. [2025-04-26 16:22:44,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25753 states, 25753 states have (on average 3.9577524948549683) internal successors, (in total 101924), 25752 states have internal predecessors, (101924), 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 16:22:44,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25753 states to 25753 states and 101924 transitions. [2025-04-26 16:22:44,525 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25753 states and 101924 transitions. [2025-04-26 16:22:44,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:22:44,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:22:44,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:22:44,526 INFO L87 Difference]: Start difference. First operand 25753 states and 101924 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (in total 21), 3 states have internal predecessors, (21), 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 16:22:44,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:22:44,740 INFO L93 Difference]: Finished difference Result 12883 states and 52001 transitions. [2025-04-26 16:22:44,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12883 states and 52001 transitions. [2025-04-26 16:22:44,902 INFO L131 ngComponentsAnalysis]: Automaton has 293 accepting balls. 10888 [2025-04-26 16:22:45,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12883 states to 11600 states and 45968 transitions. [2025-04-26 16:22:45,021 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11600 [2025-04-26 16:22:45,055 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11600 [2025-04-26 16:22:45,055 INFO L74 IsDeterministic]: Start isDeterministic. Operand 11600 states and 45968 transitions. [2025-04-26 16:22:45,084 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:22:45,084 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11600 states and 45968 transitions. [2025-04-26 16:22:45,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11600 states and 45968 transitions. [2025-04-26 16:22:45,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11600 to 9937. [2025-04-26 16:22:45,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9937 states, 9937 states have (on average 3.8696789775586193) internal successors, (in total 38453), 9936 states have internal predecessors, (38453), 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 16:22:45,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9937 states to 9937 states and 38453 transitions. [2025-04-26 16:22:45,726 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9937 states and 38453 transitions. [2025-04-26 16:22:45,729 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:22:45,729 INFO L438 stractBuchiCegarLoop]: Abstraction has 9937 states and 38453 transitions. [2025-04-26 16:22:45,729 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:22:45,729 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9937 states and 38453 transitions. [2025-04-26 16:22:45,851 INFO L131 ngComponentsAnalysis]: Automaton has 233 accepting balls. 9736 [2025-04-26 16:22:45,851 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:45,851 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:45,853 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:22:45,853 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:22:45,853 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->L116: Formula: (and (= v_x_0_3 v_x_8_1) (= v_y_9_1 v_y_1_3)) InVars {y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} OutVars{y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} AuxVars[] AssignedVars[]" "[186] L116-->$Ultimate##0: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[130] $Ultimate##0-->L59: Formula: (and (not v_f1_2_6) (not v_f2_3_6)) InVars {} OutVars{f2_3=v_f2_3_6, f1_2=v_f1_2_6} AuxVars[] AssignedVars[f2_3, f1_2]" "[198] L59-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_4) (= 2 v_thread2Thread1of1ForFork0_thidvar1_4)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[201] L63-->L44: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_4) (= 3 v_thread3Thread1of1ForFork1_thidvar1_4) (= 3 v_thread3Thread1of1ForFork1_thidvar0_4)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" [2025-04-26 16:22:45,858 INFO L754 eck$LassoCheckResult]: Loop: "[146] L44-->L46: Formula: (= v_y_1_5 v_temp_6_1) InVars {y_1=v_y_1_5} OutVars{temp_6=v_temp_6_1, y_1=v_y_1_5} AuxVars[] AssignedVars[temp_6]" "[137] L29-->L31: Formula: (= v_x_0_1 v_temp_4_1) InVars {x_0=v_x_0_1} OutVars{temp_4=v_temp_4_1, x_0=v_x_0_1} AuxVars[] AssignedVars[temp_4]" "[138] L31-->L32: Formula: (= (+ v_temp_4_2 1) v_x_0_2) InVars {temp_4=v_temp_4_2} OutVars{temp_4=v_temp_4_2, x_0=v_x_0_2} AuxVars[] AssignedVars[x_0]" "[147] L46-->L47: Formula: (= (+ v_temp_6_2 1) v_y_1_6) InVars {temp_6=v_temp_6_2} OutVars{temp_6=v_temp_6_2, y_1=v_y_1_6} AuxVars[] AssignedVars[y_1]" "[148] L47-->L48: Formula: v_f2_3_4 InVars {} OutVars{f2_3=v_f2_3_4} AuxVars[] AssignedVars[f2_3]" "[139] L32-->L33: Formula: v_f1_2_2 InVars {} OutVars{f1_2=v_f1_2_2} AuxVars[] AssignedVars[f1_2]" "[140] L33-->L34: Formula: v_f2_3_3 InVars {f2_3=v_f2_3_3} OutVars{f2_3=v_f2_3_3} AuxVars[] AssignedVars[]" "[149] L48-->L49: Formula: v_f1_2_4 InVars {f1_2=v_f1_2_4} OutVars{f1_2=v_f1_2_4} AuxVars[] AssignedVars[]" "[150] L49-->L50: Formula: (= v_x_0_5 v_temp_7_1) InVars {x_0=v_x_0_5} OutVars{temp_7=v_temp_7_1, x_0=v_x_0_5} AuxVars[] AssignedVars[temp_7]" "[151] L50-->L51: Formula: (= (+ v_temp_7_2 1) v_x_0_6) InVars {temp_7=v_temp_7_2} OutVars{temp_7=v_temp_7_2, x_0=v_x_0_6} AuxVars[] AssignedVars[x_0]" "[141] L34-->L35: Formula: (= v_y_1_1 v_temp_5_1) InVars {y_1=v_y_1_1} OutVars{y_1=v_y_1_1, temp_5=v_temp_5_1} AuxVars[] AssignedVars[temp_5]" "[152] L51-->L52: Formula: (not v_f2_3_5) InVars {} OutVars{f2_3=v_f2_3_5} AuxVars[] AssignedVars[f2_3]" "[142] L35-->L36: Formula: (= (+ v_temp_5_2 1) v_y_1_2) InVars {temp_5=v_temp_5_2} OutVars{y_1=v_y_1_2, temp_5=v_temp_5_2} AuxVars[] AssignedVars[y_1]" "[143] L36-->L37: Formula: (not v_f1_2_3) InVars {} OutVars{f1_2=v_f1_2_3} AuxVars[] AssignedVars[f1_2]" "[144] L37-->L29: Formula: (not v_f2_3_2) InVars {f2_3=v_f2_3_2} OutVars{f2_3=v_f2_3_2} AuxVars[] AssignedVars[]" "[153] L52-->L44: Formula: (not v_f1_2_5) InVars {f1_2=v_f1_2_5} OutVars{f1_2=v_f1_2_5} AuxVars[] AssignedVars[]" [2025-04-26 16:22:45,858 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:45,858 INFO L85 PathProgramCache]: Analyzing trace with hash 123883083, now seen corresponding path program 3 times [2025-04-26 16:22:45,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:45,858 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561824248] [2025-04-26 16:22:45,859 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-26 16:22:45,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:45,865 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:45,869 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:45,870 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-26 16:22:45,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:45,870 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:45,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:45,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:45,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:45,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:45,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:45,878 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:45,878 INFO L85 PathProgramCache]: Analyzing trace with hash -51770441, now seen corresponding path program 2 times [2025-04-26 16:22:45,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:45,878 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924072931] [2025-04-26 16:22:45,878 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:22:45,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:45,881 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 1 equivalence classes. [2025-04-26 16:22:45,886 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 16:22:45,886 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:22:45,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:45,886 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:45,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 16:22:45,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 16:22:45,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:45,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:45,897 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:45,898 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:45,898 INFO L85 PathProgramCache]: Analyzing trace with hash 319456769, now seen corresponding path program 2 times [2025-04-26 16:22:45,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:45,898 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880842060] [2025-04-26 16:22:45,898 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:22:45,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:45,907 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 1 equivalence classes. [2025-04-26 16:22:45,911 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-26 16:22:45,911 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:22:45,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:45,912 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:45,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-26 16:22:45,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-26 16:22:45,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:45,920 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:45,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:46,013 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:46,013 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:46,013 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:46,013 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:46,013 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:22:46,013 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:46,013 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:46,013 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:46,013 INFO L132 ssoRankerPreferences]: Filename of dumped script: barrier-loop.wvr.bpl_petrified1_Iteration4_Loop [2025-04-26 16:22:46,013 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:46,013 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:46,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:46,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:46,025 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:46,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:46,099 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:46,099 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:22:46,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:46,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:46,104 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 16:22:46,109 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:46,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:46,109 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 16:22:46,147 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:46,147 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f1_2 1 0)_3=0} Honda state: {v_rep(ite f1_2 1 0)_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:46,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:46,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:46,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:46,156 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 16:22:46,157 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 16:22:46,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:46,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:46,202 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 16:22:46,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:46,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:46,205 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 16:22:46,207 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 16:22:46,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:46,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:46,512 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:46,512 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_6=2, y_1=0, temp_5=1} Honda state: {temp_6=2, y_1=0, temp_5=1} Generalized eigenvectors: [{temp_6=-2, y_1=2, temp_5=0}, {temp_6=4, y_1=0, temp_5=2}, {temp_6=-4, y_1=0, temp_5=-2}] Lambdas: [1, 1, 0] Nus: [1, 1] [2025-04-26 16:22:46,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:46,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:46,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:46,524 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 16:22:46,525 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 16:22:46,527 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:46,527 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:46,581 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 16:22:46,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:46,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:46,586 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 16:22:46,599 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 16:22:46,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:46,600 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:46,935 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:46,935 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_4=-26, temp_7=0, x_0=-22} Honda state: {temp_4=-26, temp_7=0, x_0=-22} Generalized eigenvectors: [{temp_4=0, temp_7=-25, x_0=-2}, {temp_4=-2, temp_7=73, x_0=4}, {temp_4=6, temp_7=-69, x_0=0}] Lambdas: [3, 1, 0] Nus: [1, 1] [2025-04-26 16:22:46,944 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 16:22:46,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:46,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:46,946 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 16:22:46,948 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 16:22:46,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:46,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:46,966 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:46,967 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f2_3 1 0)_3=0} Honda state: {v_rep(ite f2_3 1 0)_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:46,972 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 16:22:47,034 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:47,034 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:47,034 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:47,034 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:47,034 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:22:47,034 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:47,034 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:47,034 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:47,034 INFO L132 ssoRankerPreferences]: Filename of dumped script: barrier-loop.wvr.bpl_petrified1_Iteration4_Lasso [2025-04-26 16:22:47,035 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:47,035 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:47,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:47,040 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:47,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:47,053 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:47,056 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:47,058 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:47,060 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:47,062 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:47,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:47,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:47,171 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:47,171 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:22:47,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:47,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:47,175 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 16:22:47,176 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 16:22:47,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:47,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:47,193 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:47,193 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f2_3 1 0)_4=0} Honda state: {v_rep(ite f2_3 1 0)_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:47,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-04-26 16:22:47,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:47,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:47,200 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 16:22:47,201 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 16:22:47,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:47,202 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:47,213 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:47,213 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork2_thidvar0=0} Honda state: {thread1Thread1of1ForFork2_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:47,218 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 16:22:47,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:47,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:47,220 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 16:22:47,221 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 16:22:47,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:47,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:47,248 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 16:22:47,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:47,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:47,253 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 16:22:47,255 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 16:22:47,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:47,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:47,487 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:47,487 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y_1=0, y_9=0, temp_6=-2, temp_5=-9} Honda state: {y_1=0, y_9=0, temp_6=-2, temp_5=-9} Generalized eigenvectors: [{y_1=2, y_9=0, temp_6=2, temp_5=3}, {y_1=0, y_9=0, temp_6=0, temp_5=-1}, {y_1=0, y_9=0, temp_6=0, temp_5=8}] Lambdas: [1, 8, 0] Nus: [1, 1] [2025-04-26 16:22:47,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:47,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:47,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:47,498 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 16:22:47,499 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 16:22:47,499 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:47,499 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:47,512 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:47,512 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar0=0} Honda state: {thread3Thread1of1ForFork1_thidvar0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:47,518 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 16:22:47,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:47,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:47,520 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:47,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-04-26 16:22:47,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:47,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:47,534 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:47,534 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar1=0} Honda state: {thread3Thread1of1ForFork1_thidvar1=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:47,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:47,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:47,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:47,541 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:47,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-04-26 16:22:47,548 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:47,548 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:47,558 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:47,558 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar0=0} Honda state: {thread2Thread1of1ForFork0_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:47,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-04-26 16:22:47,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:47,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:47,565 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:47,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-04-26 16:22:47,568 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:47,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:47,579 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:47,579 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar1=0} Honda state: {thread2Thread1of1ForFork0_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:47,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:47,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:47,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:47,588 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:47,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-04-26 16:22:47,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:47,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:47,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:47,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:47,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:47,617 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:47,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-04-26 16:22:47,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:47,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:47,893 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:47,893 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_4=-1, temp_7=-2, x_8=0, x_0=0} Honda state: {temp_4=-1, temp_7=-2, x_8=0, x_0=0} Generalized eigenvectors: [{temp_4=0, temp_7=2, x_8=-1, x_0=1}, {temp_4=1, temp_7=1, x_8=-1, x_0=1}, {temp_4=0, temp_7=0, x_8=2, x_0=0}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-04-26 16:22:47,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2025-04-26 16:22:47,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:47,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:47,907 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:47,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-04-26 16:22:47,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:47,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:47,926 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:47,926 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f1_2 1 0)_4=0} Honda state: {v_rep(ite f1_2 1 0)_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:47,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-04-26 16:22:47,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:47,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:47,934 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:47,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-04-26 16:22:47,936 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:47,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:47,947 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:47,947 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar2=0} Honda state: {thread3Thread1of1ForFork1_thidvar2=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:47,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2025-04-26 16:22:47,969 INFO L201 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:22:47 BoogieIcfgContainer [2025-04-26 16:22:47,970 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:22:47,970 INFO L158 Benchmark]: Toolchain (without parser) took 12112.80ms. Allocated memory was 163.6MB in the beginning and 1.1GB in the end (delta: 926.9MB). Free memory was 90.5MB in the beginning and 352.3MB in the end (delta: -261.8MB). Peak memory consumption was 663.6MB. Max. memory is 8.0GB. [2025-04-26 16:22:47,971 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.77ms. Allocated memory is still 163.6MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:47,971 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.49ms. Allocated memory is still 163.6MB. Free memory was 90.5MB in the beginning and 88.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:47,971 INFO L158 Benchmark]: Boogie Preprocessor took 16.68ms. Allocated memory is still 163.6MB. Free memory was 88.0MB in the beginning and 86.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:47,971 INFO L158 Benchmark]: RCFGBuilder took 238.85ms. Allocated memory is still 163.6MB. Free memory was 86.9MB in the beginning and 76.5MB in the end (delta: 10.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 16:22:47,971 INFO L158 Benchmark]: BuchiAutomizer took 11826.15ms. Allocated memory was 163.6MB in the beginning and 1.1GB in the end (delta: 926.9MB). Free memory was 76.3MB in the beginning and 352.3MB in the end (delta: -276.0MB). Peak memory consumption was 651.0MB. Max. memory is 8.0GB. [2025-04-26 16:22:47,972 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 0.77ms. Allocated memory is still 163.6MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.49ms. Allocated memory is still 163.6MB. Free memory was 90.5MB in the beginning and 88.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 16.68ms. Allocated memory is still 163.6MB. Free memory was 88.0MB in the beginning and 86.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 238.85ms. Allocated memory is still 163.6MB. Free memory was 86.9MB in the beginning and 76.5MB in the end (delta: 10.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 11826.15ms. Allocated memory was 163.6MB in the beginning and 1.1GB in the end (delta: 926.9MB). Free memory was 76.3MB in the beginning and 352.3MB in the end (delta: -276.0MB). Peak memory consumption was 651.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.2s. Büchi inclusion checks took 4.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 1. Automata minimization 2.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 10301 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 2.0s Buchi closure took 0.2s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 255 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 254 mSDsluCounter, 468 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 184 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 212 IncrementalHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 284 mSDtfsCounter, 212 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq209 hnf90 smp100 dnf100 smp100 tf105 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 6 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.1s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (if f2_3 then 1 else 0) and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 9937 locations. - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 44]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {y_1=0, x_0=0, freshIdentifier37=0, temp_5=-9, freshIdentifier38=0, temp_6=-2, freshIdentifier39=0, temp_4=-1, (if f2_3 then 1 else 0)=0, (if f1_2 then 1 else 0)=0, freshIdentifier40=0, temp_7=-2, freshIdentifier41=0, freshIdentifier42=0, y_9=0, x_8=0} State at position 1 is {y_1=0, x_0=0, freshIdentifier43=3, temp_5=-9, freshIdentifier44=3, temp_6=-2, freshIdentifier45=3, temp_4=-1, (if f2_3 then 1 else 0)=0, (if f1_2 then 1 else 0)=0, freshIdentifier46=2, temp_7=-2, freshIdentifier47=1, freshIdentifier48=2, y_9=0, x_8=0} For i>1, the state at position i is {y_1=0 + sum_{k=0}^i 2, x_0=0 + sum_{k=0}^i 1*0^k + 1 + 1*k*0^(k-1), freshIdentifier49=3 + sum_{k=0}^i 0, temp_5=-9 + sum_{k=0}^i 3 + -1*8^k + -1*k + 8*0^k + 8*k*8^(k-1) + 8*binomial(k, 2), freshIdentifier50=3 + sum_{k=0}^i 0, temp_6=-2 + sum_{k=0}^i 2, freshIdentifier51=3 + sum_{k=0}^i 0, temp_4=-1 + sum_{k=0}^i 1 + 1*k*0^(k-1), (if f2_3 then 1 else 0)=0 + sum_{k=0}^i 0, (if f1_2 then 1 else 0)=0 + sum_{k=0}^i 0, freshIdentifier52=2 + sum_{k=0}^i 0, temp_7=-2 + sum_{k=0}^i 2*0^k + 1 + 1*k*0^(k-1), freshIdentifier53=1 + sum_{k=0}^i 0, freshIdentifier54=2 + sum_{k=0}^i 0, y_9=0 + sum_{k=0}^i 0, x_8=0 + sum_{k=0}^i -1*0^k + -1 + -1*k*0^(k-1) + 2} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 6GEVs Lambdas: [1, 8, 0, 0, 1, 1] Mus: [1, 1, 0, 1, 0] - NonterminatingLassoResult [Line: 44]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L115] 0 assume x_0 == x_8 && y_1 == y_9; [L116] FORK 0 fork 1 thread1(); [L60] 1 f1_2 := false; [L61] 1 f2_3 := false; [L63] FORK 1 fork 2, 2 thread2(); [L64] FORK 1 fork 3, 3, 3 thread3(); Loop: [L45] temp_6 := y_1; [L30] temp_4 := x_0; [L31] x_0 := temp_4 + 1; [L46] y_1 := temp_6 + 1; [L47] f2_3 := true; [L32] f1_2 := true; [L33] assume f2_3; [L48] assume f1_2; [L49] temp_7 := x_0; [L50] x_0 := temp_7 + 1; [L34] temp_5 := y_1; [L51] f2_3 := false; [L35] y_1 := temp_5 + 1; [L36] f1_2 := false; [L37] assume !f2_3; [L52] assume !f1_2; End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-04-26 16:22:47,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...