/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 /storage/cav23-termute-examples/4_plus_thr/me1-5.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:47:09,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:47:09,744 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:47:09,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:47:09,751 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:47:09,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:47:09,772 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:47:09,772 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:47:09,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:47:09,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:47:09,773 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:47:09,773 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:47:09,773 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:47:09,773 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:47:09,773 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:47:09,773 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:47:09,773 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:47:09,773 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:47:09,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:47:09,773 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:47:09,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:47:09,774 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:47:09,774 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:47:09,774 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:47:09,774 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:47:09,774 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:47:09,774 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:47:09,774 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:47:09,774 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:47:09,774 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:47:09,774 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:47:09,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:47:09,774 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:47:09,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:47:09,774 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:47:09,775 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:47:09,775 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:47:09,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:47:09,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:47:09,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:47:09,997 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:47:09,997 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:47:09,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/me1-5.c.bpl [2025-02-17 22:47:10,000 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/me1-5.c.bpl' [2025-02-17 22:47:10,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:47:10,020 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:47:10,020 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:47:10,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:47:10,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:47:10,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "me1-5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:10" (1/1) ... [2025-02-17 22:47:10,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "me1-5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:10" (1/1) ... [2025-02-17 22:47:10,042 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:47:10,044 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:47:10,045 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:47:10,045 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:47:10,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:47:10,050 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "me1-5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:10" (1/1) ... [2025-02-17 22:47:10,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "me1-5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:10" (1/1) ... [2025-02-17 22:47:10,051 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "me1-5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:10" (1/1) ... [2025-02-17 22:47:10,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "me1-5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:10" (1/1) ... [2025-02-17 22:47:10,054 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "me1-5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:10" (1/1) ... [2025-02-17 22:47:10,055 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "me1-5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:10" (1/1) ... [2025-02-17 22:47:10,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "me1-5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:10" (1/1) ... [2025-02-17 22:47:10,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "me1-5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:10" (1/1) ... [2025-02-17 22:47:10,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "me1-5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:10" (1/1) ... [2025-02-17 22:47:10,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:47:10,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:47:10,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:47:10,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:47:10,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "me1-5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:10" (1/1) ... [2025-02-17 22:47:10,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:10,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:10,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:10,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:47:10,116 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:47:10,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:47:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:47:10,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:47:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:47:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:47:10,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:47:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:47:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:47:10,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:47:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:47:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:47:10,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:47:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:47:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:47:10,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-02-17 22:47:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-17 22:47:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-17 22:47:10,118 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:47:10,152 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:47:10,153 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:47:10,222 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:47:10,222 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:47:10,229 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:47:10,229 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:47:10,230 INFO L201 PluginConnector]: Adding new model me1-5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:47:10 BoogieIcfgContainer [2025-02-17 22:47:10,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:47:10,230 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:47:10,230 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:47:10,234 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:47:10,235 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:47:10,235 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "me1-5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:10" (1/2) ... [2025-02-17 22:47:10,236 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1491a189 and model type me1-5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:47:10, skipping insertion in model container [2025-02-17 22:47:10,236 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:47:10,236 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "me1-5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:47:10" (2/2) ... [2025-02-17 22:47:10,238 INFO L363 chiAutomizerObserver]: Analyzing ICFG me1-5.c.bpl [2025-02-17 22:47:10,312 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2025-02-17 22:47:10,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 46 transitions, 127 flow [2025-02-17 22:47:10,365 INFO L124 PetriNetUnfolderBase]: 5/36 cut-off events. [2025-02-17 22:47:10,369 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-17 22:47:10,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 36 events. 5/36 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 76 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2025-02-17 22:47:10,373 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 46 transitions, 127 flow [2025-02-17 22:47:10,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 36 transitions, 102 flow [2025-02-17 22:47:10,384 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:47:10,384 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:47:10,384 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:47:10,384 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:47:10,384 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:47:10,384 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:47:10,384 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:47:10,384 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:47:10,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:47:10,840 INFO L131 ngComponentsAnalysis]: Automaton has 1001 accepting balls. 3542 [2025-02-17 22:47:10,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:10,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:10,845 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:47:10,845 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:47:10,845 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:47:10,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 3907 states, but on-demand construction may add more states [2025-02-17 22:47:10,931 INFO L131 ngComponentsAnalysis]: Automaton has 1001 accepting balls. 3542 [2025-02-17 22:47:10,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:10,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:10,931 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:47:10,932 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:47:10,936 INFO L752 eck$LassoCheckResult]: Stem: "[84] $Ultimate##0-->L18: Formula: (and (= v_g_4 0) (= v_h_1 0)) InVars {h=v_h_1, g=v_g_4} OutVars{h=v_h_1, g=v_g_4} AuxVars[] AssignedVars[]" "[115] L18-->L33: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-02-17 22:47:10,937 INFO L754 eck$LassoCheckResult]: Loop: "[90] L33-->L35: Formula: (< v_x1_1 v_z1_1) InVars {x1=v_x1_1, z1=v_z1_1} OutVars{x1=v_x1_1, z1=v_z1_1} AuxVars[] AssignedVars[]" "[92] L35-->L33: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" [2025-02-17 22:47:10,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:10,945 INFO L85 PathProgramCache]: Analyzing trace with hash 3680, now seen corresponding path program 1 times [2025-02-17 22:47:10,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:10,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178501700] [2025-02-17 22:47:10,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:10,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:10,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:11,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:11,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:11,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:11,004 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:11,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:11,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:11,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:11,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:11,025 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:11,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:11,029 INFO L85 PathProgramCache]: Analyzing trace with hash 3843, now seen corresponding path program 1 times [2025-02-17 22:47:11,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:11,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777820414] [2025-02-17 22:47:11,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:11,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:11,035 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:11,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:11,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:11,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:11,042 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:11,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:11,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:11,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:11,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:11,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:11,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:11,052 INFO L85 PathProgramCache]: Analyzing trace with hash 3539362, now seen corresponding path program 1 times [2025-02-17 22:47:11,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:11,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147350018] [2025-02-17 22:47:11,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:11,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:11,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:11,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:11,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:11,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:11,062 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:11,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:11,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:11,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:11,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:11,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:11,120 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:11,120 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:11,121 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:11,121 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:11,121 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:11,121 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:11,121 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:11,121 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:11,121 INFO L132 ssoRankerPreferences]: Filename of dumped script: me1-5.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:47:11,121 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:11,121 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:11,134 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:11,178 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:11,182 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:11,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:11,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:11,185 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:11,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:47:11,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:11,189 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:11,210 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 [2025-02-17 22:47:11,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:11,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:11,213 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:11,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-17 22:47:11,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:11,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:11,285 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:11,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-17 22:47:11,290 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:11,290 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:11,290 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:11,290 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:11,290 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:11,290 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:11,290 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:11,290 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:11,290 INFO L132 ssoRankerPreferences]: Filename of dumped script: me1-5.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:47:11,290 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:11,290 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:11,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:11,315 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:11,318 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:11,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:11,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:11,320 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:11,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-17 22:47:11,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:11,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:11,336 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:11,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:11,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:11,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:11,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:11,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:11,344 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:11,351 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:47:11,351 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:47:11,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:11,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:11,356 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:11,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-17 22:47:11,358 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:11,359 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:11,359 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:11,359 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z1, x1) = 1*z1 - 1*x1 Supporting invariants [] [2025-02-17 22:47:11,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:11,368 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:11,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:11,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:11,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:11,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:11,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:11,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:11,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:11,423 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:11,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:11,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:11,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:11,424 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:11,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:11,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:11,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:11,515 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:47:11,522 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 3907 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:11,863 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 3907 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10934 states and 58472 transitions. Complement of second has 6 states. [2025-02-17 22:47:11,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:11,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:11,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2025-02-17 22:47:11,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 2 letters. Loop has 2 letters. [2025-02-17 22:47:11,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:11,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-17 22:47:11,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:11,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:47:11,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:11,873 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10934 states and 58472 transitions. [2025-02-17 22:47:12,141 INFO L131 ngComponentsAnalysis]: Automaton has 1100 accepting balls. 3300 [2025-02-17 22:47:12,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10934 states to 8172 states and 44013 transitions. [2025-02-17 22:47:12,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3704 [2025-02-17 22:47:12,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5938 [2025-02-17 22:47:12,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8172 states and 44013 transitions. [2025-02-17 22:47:12,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:12,326 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8172 states and 44013 transitions. [2025-02-17 22:47:12,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8172 states and 44013 transitions. [2025-02-17 22:47:12,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8172 to 5940. [2025-02-17 22:47:12,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 5940 states have (on average 5.548484848484849) internal successors, (32958), 5939 states have internal predecessors, (32958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:12,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 32958 transitions. [2025-02-17 22:47:12,651 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5940 states and 32958 transitions. [2025-02-17 22:47:12,651 INFO L432 stractBuchiCegarLoop]: Abstraction has 5940 states and 32958 transitions. [2025-02-17 22:47:12,651 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:47:12,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5940 states and 32958 transitions. [2025-02-17 22:47:12,706 INFO L131 ngComponentsAnalysis]: Automaton has 1100 accepting balls. 3300 [2025-02-17 22:47:12,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:12,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:12,707 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:47:12,707 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:47:12,708 INFO L752 eck$LassoCheckResult]: Stem: "[84] $Ultimate##0-->L18: Formula: (and (= v_g_4 0) (= v_h_1 0)) InVars {h=v_h_1, g=v_g_4} OutVars{h=v_h_1, g=v_g_4} AuxVars[] AssignedVars[]" "[115] L18-->L33: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[118] L18-1-->L42: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-02-17 22:47:12,708 INFO L754 eck$LassoCheckResult]: Loop: "[94] L42-->L44: Formula: (< v_x2_1 v_z2_1) InVars {z2=v_z2_1, x2=v_x2_1} OutVars{z2=v_z2_1, x2=v_x2_1} AuxVars[] AssignedVars[]" "[96] L44-->L42: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" [2025-02-17 22:47:12,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:12,709 INFO L85 PathProgramCache]: Analyzing trace with hash 114198, now seen corresponding path program 1 times [2025-02-17 22:47:12,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:12,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996133806] [2025-02-17 22:47:12,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:12,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:12,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:12,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:12,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:12,716 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:12,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:12,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:12,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:12,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:12,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:12,720 INFO L85 PathProgramCache]: Analyzing trace with hash 3971, now seen corresponding path program 1 times [2025-02-17 22:47:12,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:12,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127101933] [2025-02-17 22:47:12,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:12,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:12,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:12,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:12,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:12,726 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:12,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:12,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:12,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:12,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:12,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:12,729 INFO L85 PathProgramCache]: Analyzing trace with hash 109747288, now seen corresponding path program 1 times [2025-02-17 22:47:12,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:12,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734661995] [2025-02-17 22:47:12,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:12,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:12,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:12,739 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:12,739 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:12,739 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:12,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:12,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:12,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:12,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:12,758 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:12,759 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:12,759 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:12,759 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:12,759 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:12,759 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:12,759 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:12,759 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:12,759 INFO L132 ssoRankerPreferences]: Filename of dumped script: me1-5.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:47:12,759 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:12,759 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:12,759 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:12,783 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:12,784 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:12,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:12,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:12,786 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:12,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-17 22:47:12,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:12,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:12,807 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 [2025-02-17 22:47:12,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:12,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:12,809 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:12,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-17 22:47:12,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:12,812 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:12,880 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:12,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-17 22:47:12,885 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:12,885 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:12,885 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:12,885 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:12,885 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:12,885 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:12,885 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:12,885 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:12,885 INFO L132 ssoRankerPreferences]: Filename of dumped script: me1-5.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:47:12,885 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:12,885 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:12,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:12,912 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:12,912 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:12,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:12,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:12,915 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:12,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-17 22:47:12,918 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:12,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:12,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:12,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:12,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:12,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:12,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:12,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:12,934 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:12,938 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:47:12,938 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:47:12,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:12,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:12,940 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:12,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-17 22:47:12,943 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:12,943 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:12,943 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:12,943 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z2, x2) = 1*z2 - 1*x2 Supporting invariants [] [2025-02-17 22:47:12,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:12,950 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:12,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:12,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:12,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:12,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:12,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:12,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:12,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:12,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:12,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:12,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:12,986 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:12,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:13,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:13,004 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:47:13,005 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5940 states and 32958 transitions. cyclomatic complexity: 28423 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:13,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-02-17 22:47:13,527 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5940 states and 32958 transitions. cyclomatic complexity: 28423. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22316 states and 125067 transitions. Complement of second has 7 states. [2025-02-17 22:47:13,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:13,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:13,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2025-02-17 22:47:13,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-17 22:47:13,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:13,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 5 letters. Loop has 2 letters. [2025-02-17 22:47:13,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:13,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 3 letters. Loop has 4 letters. [2025-02-17 22:47:13,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:13,529 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22316 states and 125067 transitions. [2025-02-17 22:47:14,045 INFO L131 ngComponentsAnalysis]: Automaton has 1890 accepting balls. 5012 [2025-02-17 22:47:14,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22316 states to 16850 states and 95442 transitions. [2025-02-17 22:47:14,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7505 [2025-02-17 22:47:14,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9720 [2025-02-17 22:47:14,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16850 states and 95442 transitions. [2025-02-17 22:47:14,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:14,302 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16850 states and 95442 transitions. [2025-02-17 22:47:14,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16850 states and 95442 transitions. [2025-02-17 22:47:14,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16850 to 11909. [2025-02-17 22:47:14,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11909 states, 11909 states have (on average 5.921991770929549) internal successors, (70525), 11908 states have internal predecessors, (70525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:14,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11909 states to 11909 states and 70525 transitions. [2025-02-17 22:47:14,899 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11909 states and 70525 transitions. [2025-02-17 22:47:14,899 INFO L432 stractBuchiCegarLoop]: Abstraction has 11909 states and 70525 transitions. [2025-02-17 22:47:14,900 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:47:14,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11909 states and 70525 transitions. [2025-02-17 22:47:14,974 INFO L131 ngComponentsAnalysis]: Automaton has 1386 accepting balls. 3874 [2025-02-17 22:47:14,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:14,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:14,975 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:47:14,975 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:47:14,975 INFO L752 eck$LassoCheckResult]: Stem: "[84] $Ultimate##0-->L18: Formula: (and (= v_g_4 0) (= v_h_1 0)) InVars {h=v_h_1, g=v_g_4} OutVars{h=v_h_1, g=v_g_4} AuxVars[] AssignedVars[]" "[115] L18-->L33: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[118] L18-1-->L42: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[121] L19-->$Ultimate##0: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[124] L20-->L62: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2]" [2025-02-17 22:47:14,975 INFO L754 eck$LassoCheckResult]: Loop: "[104] L62-->L64: Formula: (< v_x3_1 v_z3_1) InVars {z3=v_z3_1, x3=v_x3_1} OutVars{z3=v_z3_1, x3=v_x3_1} AuxVars[] AssignedVars[]" "[106] L64-->L62: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" [2025-02-17 22:47:14,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:14,976 INFO L85 PathProgramCache]: Analyzing trace with hash 109748153, now seen corresponding path program 1 times [2025-02-17 22:47:14,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:14,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700448417] [2025-02-17 22:47:14,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:14,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:14,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:14,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:14,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:14,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:14,980 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:14,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:14,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:14,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:14,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:14,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:14,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:14,985 INFO L85 PathProgramCache]: Analyzing trace with hash 4291, now seen corresponding path program 1 times [2025-02-17 22:47:14,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:14,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608092319] [2025-02-17 22:47:14,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:14,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:14,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:14,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:14,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:14,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:14,987 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:14,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:14,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:14,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:14,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:14,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:14,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:14,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1906204037, now seen corresponding path program 1 times [2025-02-17 22:47:14,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:14,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348636737] [2025-02-17 22:47:14,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:14,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:14,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:47:14,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:47:14,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:14,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:14,996 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:14,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:47:14,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:47:14,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:14,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:15,000 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:15,021 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:15,022 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:15,022 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:15,022 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:15,022 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:15,022 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:15,022 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:15,022 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:15,022 INFO L132 ssoRankerPreferences]: Filename of dumped script: me1-5.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:47:15,022 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:15,022 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:15,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:15,037 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:15,038 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:15,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:15,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:15,039 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:15,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-17 22:47:15,042 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:15,042 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:15,058 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 [2025-02-17 22:47:15,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:15,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:15,060 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:15,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-17 22:47:15,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:15,062 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:15,125 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:15,129 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 [2025-02-17 22:47:15,129 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:15,130 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:15,130 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:15,130 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:15,130 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:15,130 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:15,130 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:15,130 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:15,130 INFO L132 ssoRankerPreferences]: Filename of dumped script: me1-5.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:47:15,130 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:15,130 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:15,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:15,150 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:15,151 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:15,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:15,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:15,154 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:15,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-17 22:47:15,156 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:15,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:15,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:15,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:15,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:15,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:15,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:15,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:15,170 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:15,172 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:47:15,172 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:47:15,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:15,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:15,174 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:15,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-17 22:47:15,176 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:15,177 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:15,177 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:15,177 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z3, x3) = 1*z3 - 1*x3 Supporting invariants [] [2025-02-17 22:47:15,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-02-17 22:47:15,183 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:15,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:15,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:15,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:15,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:15,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:15,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:15,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:15,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:15,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:15,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:15,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:15,218 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:15,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:15,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:15,232 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:47:15,232 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11909 states and 70525 transitions. cyclomatic complexity: 61011 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:15,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-02-17 22:47:15,894 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11909 states and 70525 transitions. cyclomatic complexity: 61011. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43098 states and 257005 transitions. Complement of second has 7 states. [2025-02-17 22:47:15,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:15,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:15,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2025-02-17 22:47:15,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 93 transitions. Stem has 5 letters. Loop has 2 letters. [2025-02-17 22:47:15,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:15,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 93 transitions. Stem has 7 letters. Loop has 2 letters. [2025-02-17 22:47:15,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:15,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 93 transitions. Stem has 5 letters. Loop has 4 letters. [2025-02-17 22:47:15,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:15,896 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43098 states and 257005 transitions. [2025-02-17 22:47:16,677 INFO L131 ngComponentsAnalysis]: Automaton has 1886 accepting balls. 4964 [2025-02-17 22:47:17,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43098 states to 31342 states and 188014 transitions. [2025-02-17 22:47:17,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11384 [2025-02-17 22:47:17,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14197 [2025-02-17 22:47:17,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31342 states and 188014 transitions. [2025-02-17 22:47:17,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:17,305 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31342 states and 188014 transitions. [2025-02-17 22:47:17,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31342 states and 188014 transitions. [2025-02-17 22:47:17,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31342 to 23421. [2025-02-17 22:47:17,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23421 states, 23421 states have (on average 6.229879168267794) internal successors, (145910), 23420 states have internal predecessors, (145910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:18,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23421 states to 23421 states and 145910 transitions. [2025-02-17 22:47:18,354 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23421 states and 145910 transitions. [2025-02-17 22:47:18,354 INFO L432 stractBuchiCegarLoop]: Abstraction has 23421 states and 145910 transitions. [2025-02-17 22:47:18,354 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:47:18,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23421 states and 145910 transitions. [2025-02-17 22:47:18,562 INFO L131 ngComponentsAnalysis]: Automaton has 1514 accepting balls. 4100 [2025-02-17 22:47:18,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:18,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:18,563 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-02-17 22:47:18,563 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:47:18,564 INFO L752 eck$LassoCheckResult]: Stem: "[84] $Ultimate##0-->L18: Formula: (and (= v_g_4 0) (= v_h_1 0)) InVars {h=v_h_1, g=v_g_4} OutVars{h=v_h_1, g=v_g_4} AuxVars[] AssignedVars[]" "[115] L18-->L33: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[118] L18-1-->L42: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[121] L19-->$Ultimate##0: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[98] $Ultimate##0-->L53-1: Formula: (< 0 v_g_3) InVars {g=v_g_3} OutVars{g=v_g_3} AuxVars[] AssignedVars[]" "[93] L42-->L46: Formula: (<= v_z2_2 v_x2_4) InVars {z2=v_z2_2, x2=v_x2_4} OutVars{z2=v_z2_2, x2=v_x2_4} AuxVars[] AssignedVars[]" [2025-02-17 22:47:18,564 INFO L754 eck$LassoCheckResult]: Loop: "[100] L53-1-->L55: Formula: (< v_y2_1 v_x2_5) InVars {y2=v_y2_1, x2=v_x2_5} OutVars{y2=v_y2_1, x2=v_x2_5} AuxVars[] AssignedVars[]" "[102] L55-->L53-1: Formula: (= v_x2_7 (+ v_x2_6 1)) InVars {x2=v_x2_7} OutVars{x2=v_x2_6} AuxVars[] AssignedVars[x2]" [2025-02-17 22:47:18,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:18,564 INFO L85 PathProgramCache]: Analyzing trace with hash -892775266, now seen corresponding path program 1 times [2025-02-17 22:47:18,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:18,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174101351] [2025-02-17 22:47:18,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:18,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:18,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:47:18,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:47:18,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:18,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:18,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:18,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:47:18,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174101351] [2025-02-17 22:47:18,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174101351] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:47:18,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:47:18,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:47:18,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749803670] [2025-02-17 22:47:18,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:47:18,604 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-17 22:47:18,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:18,604 INFO L85 PathProgramCache]: Analyzing trace with hash 4163, now seen corresponding path program 1 times [2025-02-17 22:47:18,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:18,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086114576] [2025-02-17 22:47:18,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:18,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:18,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:18,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:18,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:18,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:18,607 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:18,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:18,609 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:18,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:18,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:18,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:18,626 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:18,627 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:18,627 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:18,627 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:18,627 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:18,627 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:18,627 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:18,627 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:18,627 INFO L132 ssoRankerPreferences]: Filename of dumped script: me1-5.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:47:18,627 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:18,627 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:18,627 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:18,646 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:18,647 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:18,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:18,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:18,649 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) [2025-02-17 22:47:18,650 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 [2025-02-17 22:47:18,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:18,655 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:18,677 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 [2025-02-17 22:47:18,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:18,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:18,680 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) [2025-02-17 22:47:18,683 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 [2025-02-17 22:47:18,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:18,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:18,772 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:18,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-02-17 22:47:18,776 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:18,776 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:18,776 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:18,776 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:18,776 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:18,776 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:18,776 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:18,776 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:18,776 INFO L132 ssoRankerPreferences]: Filename of dumped script: me1-5.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:47:18,776 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:18,776 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:18,777 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:18,793 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:18,793 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:18,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:18,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:18,797 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) [2025-02-17 22:47:18,798 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 [2025-02-17 22:47:18,799 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:18,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:18,809 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:18,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:18,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:18,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:18,810 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:18,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:18,812 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:18,816 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:47:18,816 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:47:18,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:18,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:18,818 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) [2025-02-17 22:47:18,819 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 [2025-02-17 22:47:18,820 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:18,820 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:18,820 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:18,821 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(y2, x2) = -1*y2 + 1*x2 Supporting invariants [] [2025-02-17 22:47:18,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:18,827 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:18,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:18,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:47:18,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:47:18,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:18,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:18,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:18,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:18,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:18,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:18,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:18,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:18,856 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:18,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:18,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:18,868 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:47:18,869 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23421 states and 145910 transitions. cyclomatic complexity: 126519 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:19,189 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 [2025-02-17 22:47:19,477 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23421 states and 145910 transitions. cyclomatic complexity: 126519. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43857 states and 265455 transitions. Complement of second has 6 states. [2025-02-17 22:47:19,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:19,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:19,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2025-02-17 22:47:19,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 104 transitions. Stem has 6 letters. Loop has 2 letters. [2025-02-17 22:47:19,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:19,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 104 transitions. Stem has 8 letters. Loop has 2 letters. [2025-02-17 22:47:19,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:19,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 104 transitions. Stem has 6 letters. Loop has 4 letters. [2025-02-17 22:47:19,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:19,478 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43857 states and 265455 transitions. [2025-02-17 22:47:20,226 INFO L131 ngComponentsAnalysis]: Automaton has 1330 accepting balls. 3572 [2025-02-17 22:47:20,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43857 states to 34713 states and 208578 transitions. [2025-02-17 22:47:20,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11834 [2025-02-17 22:47:20,787 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13992 [2025-02-17 22:47:20,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34713 states and 208578 transitions. [2025-02-17 22:47:20,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:20,788 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34713 states and 208578 transitions. [2025-02-17 22:47:20,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34713 states and 208578 transitions. [2025-02-17 22:47:21,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34713 to 31215. [2025-02-17 22:47:21,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31215 states, 31215 states have (on average 6.158865929841422) internal successors, (192249), 31214 states have internal predecessors, (192249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:22,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31215 states to 31215 states and 192249 transitions. [2025-02-17 22:47:22,046 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31215 states and 192249 transitions. [2025-02-17 22:47:22,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:47:22,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:47:22,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:47:22,051 INFO L87 Difference]: Start difference. First operand 31215 states and 192249 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:22,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:47:22,209 INFO L93 Difference]: Finished difference Result 11676 states and 63335 transitions. [2025-02-17 22:47:22,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11676 states and 63335 transitions. [2025-02-17 22:47:22,370 INFO L131 ngComponentsAnalysis]: Automaton has 427 accepting balls. 996 [2025-02-17 22:47:22,542 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11676 states to 10840 states and 58997 transitions. [2025-02-17 22:47:22,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3975 [2025-02-17 22:47:22,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3975 [2025-02-17 22:47:22,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10840 states and 58997 transitions. [2025-02-17 22:47:22,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:22,558 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10840 states and 58997 transitions. [2025-02-17 22:47:22,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10840 states and 58997 transitions. [2025-02-17 22:47:22,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10840 to 10840. [2025-02-17 22:47:22,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10840 states, 10840 states have (on average 5.442527675276753) internal successors, (58997), 10839 states have internal predecessors, (58997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:22,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10840 states to 10840 states and 58997 transitions. [2025-02-17 22:47:22,996 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10840 states and 58997 transitions. [2025-02-17 22:47:22,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:47:22,997 INFO L432 stractBuchiCegarLoop]: Abstraction has 10840 states and 58997 transitions. [2025-02-17 22:47:22,997 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:47:22,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10840 states and 58997 transitions. [2025-02-17 22:47:23,055 INFO L131 ngComponentsAnalysis]: Automaton has 427 accepting balls. 996 [2025-02-17 22:47:23,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:23,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:23,056 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-17 22:47:23,056 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:47:23,058 INFO L752 eck$LassoCheckResult]: Stem: "[84] $Ultimate##0-->L18: Formula: (and (= v_g_4 0) (= v_h_1 0)) InVars {h=v_h_1, g=v_g_4} OutVars{h=v_h_1, g=v_g_4} AuxVars[] AssignedVars[]" "[115] L18-->L33: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[118] L18-1-->L42: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[121] L19-->$Ultimate##0: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[124] L20-->L62: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2]" "[103] L62-->L66: Formula: (<= v_z3_2 v_x3_4) InVars {z3=v_z3_2, x3=v_x3_4} OutVars{z3=v_z3_2, x3=v_x3_4} AuxVars[] AssignedVars[]" "[127] L21-->$Ultimate##0: Formula: (and (= v_thread5Thread1of1ForFork4_thidvar4_2 5) (= v_thread5Thread1of1ForFork4_thidvar1_2 5) (= v_thread5Thread1of1ForFork4_thidvar0_2 5) (= v_thread5Thread1of1ForFork4_thidvar3_2 5) (= v_thread5Thread1of1ForFork4_thidvar2_2 5)) InVars {} OutVars{thread5Thread1of1ForFork4_thidvar0=v_thread5Thread1of1ForFork4_thidvar0_2, thread5Thread1of1ForFork4_thidvar1=v_thread5Thread1of1ForFork4_thidvar1_2, thread5Thread1of1ForFork4_thidvar2=v_thread5Thread1of1ForFork4_thidvar2_2, thread5Thread1of1ForFork4_thidvar3=v_thread5Thread1of1ForFork4_thidvar3_2, thread5Thread1of1ForFork4_thidvar4=v_thread5Thread1of1ForFork4_thidvar4_2} AuxVars[] AssignedVars[thread5Thread1of1ForFork4_thidvar0, thread5Thread1of1ForFork4_thidvar1, thread5Thread1of1ForFork4_thidvar2, thread5Thread1of1ForFork4_thidvar3, thread5Thread1of1ForFork4_thidvar4]" "[108] $Ultimate##0-->L73-1: Formula: (< 0 v_h_4) InVars {h=v_h_4} OutVars{h=v_h_4} AuxVars[] AssignedVars[]" [2025-02-17 22:47:23,059 INFO L754 eck$LassoCheckResult]: Loop: "[110] L73-1-->L75: Formula: (< v_y3_1 v_x3_5) InVars {y3=v_y3_1, x3=v_x3_5} OutVars{y3=v_y3_1, x3=v_x3_5} AuxVars[] AssignedVars[]" "[112] L75-->L73-1: Formula: (= (+ v_x3_6 1) v_x3_7) InVars {x3=v_x3_7} OutVars{x3=v_x3_6} AuxVars[] AssignedVars[x3]" [2025-02-17 22:47:23,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:23,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1037216795, now seen corresponding path program 1 times [2025-02-17 22:47:23,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:23,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572415341] [2025-02-17 22:47:23,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:23,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:23,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:47:23,065 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:47:23,065 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:23,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:23,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:23,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:47:23,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572415341] [2025-02-17 22:47:23,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572415341] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:47:23,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:47:23,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-17 22:47:23,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992619626] [2025-02-17 22:47:23,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:47:23,096 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-17 22:47:23,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:23,096 INFO L85 PathProgramCache]: Analyzing trace with hash 4483, now seen corresponding path program 1 times [2025-02-17 22:47:23,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:23,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576505428] [2025-02-17 22:47:23,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:23,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:23,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:23,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:23,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:23,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:23,101 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:23,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:23,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:23,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:23,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:23,104 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:23,118 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:23,118 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:23,118 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:23,118 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:23,118 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:23,118 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:23,118 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:23,118 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:23,118 INFO L132 ssoRankerPreferences]: Filename of dumped script: me1-5.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:47:23,119 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:23,119 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:23,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:23,133 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:23,134 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:23,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:23,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:23,136 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) [2025-02-17 22:47:23,137 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 [2025-02-17 22:47:23,140 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:23,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:23,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-02-17 22:47:23,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:23,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:23,159 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) [2025-02-17 22:47:23,160 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 [2025-02-17 22:47:23,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:23,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:23,233 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:23,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:23,237 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:23,237 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:23,237 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:23,237 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:23,237 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:23,237 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:23,237 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:23,237 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:23,237 INFO L132 ssoRankerPreferences]: Filename of dumped script: me1-5.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:47:23,238 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:23,238 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:23,238 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:23,257 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:23,258 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:23,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:23,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:23,260 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) [2025-02-17 22:47:23,261 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 [2025-02-17 22:47:23,263 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:23,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:23,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:23,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:23,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:23,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:23,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:23,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:23,275 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:23,279 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:47:23,279 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:47:23,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:23,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:23,281 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) [2025-02-17 22:47:23,282 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 [2025-02-17 22:47:23,284 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:23,284 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:23,284 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:23,284 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(y3, x3) = -1*y3 + 1*x3 Supporting invariants [] [2025-02-17 22:47:23,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:23,289 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:23,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:23,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:47:23,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:47:23,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:23,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:23,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:23,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:23,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:23,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:23,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:23,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:23,325 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:23,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:23,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:23,336 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:47:23,336 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10840 states and 58997 transitions. cyclomatic complexity: 49986 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:23,713 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Exception during sending of exit command (exit): Broken pipe [2025-02-17 22:47:23,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:23,766 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10840 states and 58997 transitions. cyclomatic complexity: 49986. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29951 states and 156502 transitions. Complement of second has 7 states. [2025-02-17 22:47:23,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:23,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:23,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2025-02-17 22:47:23,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 102 transitions. Stem has 8 letters. Loop has 2 letters. [2025-02-17 22:47:23,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:23,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 102 transitions. Stem has 10 letters. Loop has 2 letters. [2025-02-17 22:47:23,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:23,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 102 transitions. Stem has 8 letters. Loop has 4 letters. [2025-02-17 22:47:23,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:23,767 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29951 states and 156502 transitions. [2025-02-17 22:47:24,059 INFO L131 ngComponentsAnalysis]: Automaton has 427 accepting balls. 996 [2025-02-17 22:47:24,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29951 states to 18169 states and 93700 transitions. [2025-02-17 22:47:24,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5567 [2025-02-17 22:47:24,234 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6062 [2025-02-17 22:47:24,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18169 states and 93700 transitions. [2025-02-17 22:47:24,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:24,234 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18169 states and 93700 transitions. [2025-02-17 22:47:24,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18169 states and 93700 transitions. [2025-02-17 22:47:24,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18169 to 12440. [2025-02-17 22:47:24,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12440 states, 12440 states have (on average 5.437057877813505) internal successors, (67637), 12439 states have internal predecessors, (67637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:24,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12440 states to 12440 states and 67637 transitions. [2025-02-17 22:47:24,764 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12440 states and 67637 transitions. [2025-02-17 22:47:24,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:47:24,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:47:24,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:47:24,765 INFO L87 Difference]: Start difference. First operand 12440 states and 67637 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:24,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:47:24,796 INFO L93 Difference]: Finished difference Result 3030 states and 14416 transitions. [2025-02-17 22:47:24,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3030 states and 14416 transitions. [2025-02-17 22:47:24,821 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:47:24,821 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3030 states to 0 states and 0 transitions. [2025-02-17 22:47:24,821 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:47:24,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:47:24,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:47:24,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:47:24,822 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:47:24,822 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:47:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:47:24,822 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:47:24,822 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-02-17 22:47:24,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:47:24,823 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:47:24,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:47:24,828 INFO L201 PluginConnector]: Adding new model me1-5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:47:24 BoogieIcfgContainer [2025-02-17 22:47:24,828 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:47:24,828 INFO L158 Benchmark]: Toolchain (without parser) took 14808.95ms. Allocated memory was 159.4MB in the beginning and 6.3GB in the end (delta: 6.1GB). Free memory was 85.8MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2025-02-17 22:47:24,828 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.71ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:47:24,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.10ms. Allocated memory is still 159.4MB. Free memory was 85.8MB in the beginning and 84.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:47:24,829 INFO L158 Benchmark]: Boogie Preprocessor took 17.86ms. Allocated memory is still 159.4MB. Free memory was 84.5MB in the beginning and 83.8MB in the end (delta: 629.9kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:47:24,829 INFO L158 Benchmark]: RCFGBuilder took 166.66ms. Allocated memory is still 159.4MB. Free memory was 83.7MB in the beginning and 73.8MB in the end (delta: 9.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-02-17 22:47:24,829 INFO L158 Benchmark]: BuchiAutomizer took 14597.50ms. Allocated memory was 159.4MB in the beginning and 6.3GB in the end (delta: 6.1GB). Free memory was 73.7MB in the beginning and 4.6GB in the end (delta: -4.6GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2025-02-17 22:47:24,830 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 0.71ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.10ms. Allocated memory is still 159.4MB. Free memory was 85.8MB in the beginning and 84.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 17.86ms. Allocated memory is still 159.4MB. Free memory was 84.5MB in the beginning and 83.8MB in the end (delta: 629.9kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 166.66ms. Allocated memory is still 159.4MB. Free memory was 83.7MB in the beginning and 73.8MB in the end (delta: 9.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 14597.50ms. Allocated memory was 159.4MB in the beginning and 6.3GB in the end (delta: 6.1GB). Free memory was 73.7MB in the beginning and 4.6GB in the end (delta: -4.6GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (2 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + z1 and consists of 4 locations. One deterministic module has affine ranking function z2 + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function -1 * x3 + z3 and consists of 4 locations. One deterministic module has affine ranking function -1 * y2 + x2 and consists of 4 locations. One deterministic module has affine ranking function x3 + -1 * y3 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.4s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.1s. Büchi inclusion checks took 3.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 4.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 24321 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 4.6s Buchi closure took 0.1s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 375 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 370 mSDsluCounter, 572 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 289 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 268 IncrementalHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 283 mSDtfsCounter, 268 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 41ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:47:24,841 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...