/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/3_thr/interleaved3.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:45:47,873 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:45:47,924 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:45:47,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:45:47,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:45:47,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:45:47,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:45:47,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:45:47,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:45:47,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:45:47,949 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:45:47,949 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:45:47,949 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:45:47,949 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:45:47,949 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:45:47,949 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:45:47,949 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:45:47,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:45:47,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:45:47,951 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:45:47,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:45:47,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:45:47,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:45:47,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:45:47,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:45:47,951 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:45:47,951 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:45:47,951 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:45:47,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:45:47,951 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:45:47,952 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:45:47,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:45:47,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:45:47,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:45:47,952 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:45:47,952 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:45:47,952 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:45:48,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:45:48,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:45:48,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:45:48,190 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:45:48,190 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:45:48,192 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/3_thr/interleaved3.c.bpl [2025-02-17 22:45:48,193 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/3_thr/interleaved3.c.bpl' [2025-02-17 22:45:48,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:45:48,208 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:45:48,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:48,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:45:48,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:45:48,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,226 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:45:48,227 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:48,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:45:48,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:45:48,228 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:45:48,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,236 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:45:48,243 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:45:48,243 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:45:48,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:45:48,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/1) ... [2025-02-17 22:45:48,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:48,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:48,275 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 22:45:48,280 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 22:45:48,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:45:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:45:48,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:45:48,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:45:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:45:48,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:45:48,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:45:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:45:48,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:45:48,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:45:48,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:45:48,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:45:48,300 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 22:45:48,337 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:45:48,339 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:45:48,424 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:45:48,424 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:45:48,442 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:45:48,442 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:45:48,444 INFO L201 PluginConnector]: Adding new model interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:48 BoogieIcfgContainer [2025-02-17 22:45:48,444 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:45:48,445 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:45:48,446 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:45:48,449 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:45:48,450 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:48,450 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:48" (1/2) ... [2025-02-17 22:45:48,451 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7519530a and model type interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:45:48, skipping insertion in model container [2025-02-17 22:45:48,451 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:48,451 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:48" (2/2) ... [2025-02-17 22:45:48,452 INFO L363 chiAutomizerObserver]: Analyzing ICFG interleaved3.c.bpl [2025-02-17 22:45:48,500 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-17 22:45:48,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 85 flow [2025-02-17 22:45:48,559 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2025-02-17 22:45:48,562 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-17 22:45:48,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 3/26 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 60 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2025-02-17 22:45:48,566 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 85 flow [2025-02-17 22:45:48,571 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 70 flow [2025-02-17 22:45:48,580 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:45:48,580 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:45:48,580 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:45:48,580 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:45:48,580 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:45:48,581 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:45:48,581 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:45:48,581 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:45:48,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:45:48,680 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 280 [2025-02-17 22:45:48,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:48,683 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:48,686 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:48,686 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:45:48,686 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:45:48,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 303 states, but on-demand construction may add more states [2025-02-17 22:45:48,702 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 280 [2025-02-17 22:45:48,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:48,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:48,702 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:48,702 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:45:48,709 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L14: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x2_5 0) (= v_f1_4 0)) InVars {x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_4, x3=v_x3_5} OutVars{x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_4, x3=v_x3_5} AuxVars[] AssignedVars[]" "[93] L14-->L29-1: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" [2025-02-17 22:45:48,710 INFO L754 eck$LassoCheckResult]: Loop: "[68] L29-1-->L27: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[70] L27-->L28: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[71] L28-->L29: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[72] L29-->L29-1: Formula: (and (< 0 v_f1_6) (= v_f1_5 0)) InVars {f1=v_f1_6} OutVars{f1=v_f1_5} AuxVars[] AssignedVars[f1]" [2025-02-17 22:45:48,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:48,717 INFO L85 PathProgramCache]: Analyzing trace with hash 3007, now seen corresponding path program 1 times [2025-02-17 22:45:48,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:48,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862283182] [2025-02-17 22:45:48,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:48,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:48,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:48,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:48,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:48,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:48,775 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:48,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:48,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:48,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:48,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:48,793 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:48,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:48,797 INFO L85 PathProgramCache]: Analyzing trace with hash 3018852, now seen corresponding path program 1 times [2025-02-17 22:45:48,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:48,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729867946] [2025-02-17 22:45:48,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:48,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:48,801 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:48,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:48,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:48,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:48,808 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:48,811 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:48,812 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:48,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:48,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:48,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:48,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:48,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1515844318, now seen corresponding path program 1 times [2025-02-17 22:45:48,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:48,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207517709] [2025-02-17 22:45:48,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:48,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:48,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:48,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:48,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:48,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:48,872 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 22:45:48,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:48,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207517709] [2025-02-17 22:45:48,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207517709] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:48,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:48,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-17 22:45:48,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276717061] [2025-02-17 22:45:48,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:48,969 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:48,969 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:48,970 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:48,970 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:48,970 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:48,970 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:48,970 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:48,970 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:48,970 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:48,970 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:48,970 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:48,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,008 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,076 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:49,077 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:49,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,080 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 22:45:49,082 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 22:45:49,083 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:49,083 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:49,100 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:49,100 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f2=1} Honda state: {f2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:49,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-17 22:45:49,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,109 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 22:45:49,110 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 22:45:49,113 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:49,113 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:49,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:49,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,134 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 22:45:49,136 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 22:45:49,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:49,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:49,163 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:49,167 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 22:45:49,168 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:49,168 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:49,168 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:49,168 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:49,168 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:49,168 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,168 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:49,168 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:49,168 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:49,169 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:49,169 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:49,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,186 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,241 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:49,244 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:49,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,248 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 22:45:49,250 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 22:45:49,251 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 22:45:49,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:49,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:49,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:49,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:49,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:49,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:49,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:49,268 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:49,271 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:49,271 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:49,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,274 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 22:45:49,276 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 22:45:49,277 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:49,278 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:49,278 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:49,279 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f1) = 1*f1 Supporting invariants [] [2025-02-17 22:45:49,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-02-17 22:45:49,286 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:49,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:49,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:49,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:49,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:49,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:49,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:49,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:49,358 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:49,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:49,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:49,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:49,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:49,371 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 22:45:49,390 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-02-17 22:45:49,393 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 303 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 22:45:49,499 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 303 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Result 1040 states and 3252 transitions. Complement of second has 5 states. [2025-02-17 22:45:49,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:49,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 22:45:49,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2025-02-17 22:45:49,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:45:49,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:49,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 6 letters. Loop has 4 letters. [2025-02-17 22:45:49,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:49,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 2 letters. Loop has 8 letters. [2025-02-17 22:45:49,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:49,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1040 states and 3252 transitions. [2025-02-17 22:45:49,542 INFO L131 ngComponentsAnalysis]: Automaton has 73 accepting balls. 436 [2025-02-17 22:45:49,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1040 states to 830 states and 2606 transitions. [2025-02-17 22:45:49,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 514 [2025-02-17 22:45:49,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 636 [2025-02-17 22:45:49,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 830 states and 2606 transitions. [2025-02-17 22:45:49,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:49,566 INFO L218 hiAutomatonCegarLoop]: Abstraction has 830 states and 2606 transitions. [2025-02-17 22:45:49,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states and 2606 transitions. [2025-02-17 22:45:49,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 610. [2025-02-17 22:45:49,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 610 states have (on average 3.1672131147540985) internal successors, (1932), 609 states have internal predecessors, (1932), 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 22:45:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 1932 transitions. [2025-02-17 22:45:49,615 INFO L240 hiAutomatonCegarLoop]: Abstraction has 610 states and 1932 transitions. [2025-02-17 22:45:49,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:49,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:45:49,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:45:49,617 INFO L87 Difference]: Start difference. First operand 610 states and 1932 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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 22:45:49,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:49,653 INFO L93 Difference]: Finished difference Result 815 states and 2320 transitions. [2025-02-17 22:45:49,653 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 815 states and 2320 transitions. [2025-02-17 22:45:49,660 INFO L131 ngComponentsAnalysis]: Automaton has 83 accepting balls. 548 [2025-02-17 22:45:49,666 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 815 states to 628 states and 1827 transitions. [2025-02-17 22:45:49,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 628 [2025-02-17 22:45:49,667 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 628 [2025-02-17 22:45:49,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 628 states and 1827 transitions. [2025-02-17 22:45:49,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:49,670 INFO L218 hiAutomatonCegarLoop]: Abstraction has 628 states and 1827 transitions. [2025-02-17 22:45:49,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states and 1827 transitions. [2025-02-17 22:45:49,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 400. [2025-02-17 22:45:49,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 400 states have (on average 2.9475) internal successors, (1179), 399 states have internal predecessors, (1179), 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 22:45:49,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 1179 transitions. [2025-02-17 22:45:49,691 INFO L240 hiAutomatonCegarLoop]: Abstraction has 400 states and 1179 transitions. [2025-02-17 22:45:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:45:49,692 INFO L432 stractBuchiCegarLoop]: Abstraction has 400 states and 1179 transitions. [2025-02-17 22:45:49,692 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:45:49,692 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 400 states and 1179 transitions. [2025-02-17 22:45:49,695 INFO L131 ngComponentsAnalysis]: Automaton has 41 accepting balls. 380 [2025-02-17 22:45:49,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:49,695 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:49,695 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:49,695 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:45:49,696 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L14: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x2_5 0) (= v_f1_4 0)) InVars {x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_4, x3=v_x3_5} OutVars{x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_4, x3=v_x3_5} AuxVars[] AssignedVars[]" "[93] L14-->L29-1: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[87] L14-1-->L40: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" [2025-02-17 22:45:49,696 INFO L754 eck$LassoCheckResult]: Loop: "[74] L40-->L42: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" "[76] L42-->L42-1: Formula: (and (< 0 v_f2_6) (= v_f2_5 0)) InVars {f2=v_f2_6} OutVars{f2=v_f2_5} AuxVars[] AssignedVars[f2]" "[77] L42-1-->L48: Formula: (= v_x2_3 (+ v_x2_4 1)) InVars {x2=v_x2_4} OutVars{x2=v_x2_3} AuxVars[] AssignedVars[x2]" "[78] L48-->L40: Formula: (= v_f3_1 1) InVars {} OutVars{f3=v_f3_1} AuxVars[] AssignedVars[f3]" [2025-02-17 22:45:49,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:49,697 INFO L85 PathProgramCache]: Analyzing trace with hash 93304, now seen corresponding path program 1 times [2025-02-17 22:45:49,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:49,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505685301] [2025-02-17 22:45:49,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:49,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:49,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:49,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:49,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:49,705 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:49,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:49,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:49,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:49,708 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:49,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:49,709 INFO L85 PathProgramCache]: Analyzing trace with hash 3203556, now seen corresponding path program 1 times [2025-02-17 22:45:49,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:49,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653866024] [2025-02-17 22:45:49,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:49,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:49,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:49,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:49,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:49,719 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:49,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:49,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:49,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:49,722 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:49,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:49,723 INFO L85 PathProgramCache]: Analyzing trace with hash 271137499, now seen corresponding path program 1 times [2025-02-17 22:45:49,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:49,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392418083] [2025-02-17 22:45:49,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:49,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:49,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:49,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:49,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:49,755 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 22:45:49,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:49,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392418083] [2025-02-17 22:45:49,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392418083] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:49,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:49,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:45:49,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024116021] [2025-02-17 22:45:49,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:49,794 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:49,794 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:49,794 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:49,794 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:49,794 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:49,794 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,794 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:49,794 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:49,794 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:49,794 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:49,794 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:49,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,798 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,838 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:49,838 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:49,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,841 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 22:45:49,841 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 22:45:49,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:49,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:49,853 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:49,853 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f3=1} Honda state: {f3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:49,858 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 22:45:49,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,860 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 22:45:49,861 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 22:45:49,862 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:49,862 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:49,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-17 22:45:49,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,880 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 22:45:49,882 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 22:45:49,883 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:49,883 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:49,905 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:49,908 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 22:45:49,909 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:49,909 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:49,909 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:49,909 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:49,909 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:49,909 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,909 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:49,909 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:49,909 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:49,909 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:49,909 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:49,910 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,918 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,920 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:49,951 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:49,952 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:49,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,954 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 22:45:49,955 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 22:45:49,956 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 22:45:49,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:49,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:49,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:49,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:49,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:49,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:49,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:49,969 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:49,972 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:49,972 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:49,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:49,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:49,974 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 22:45:49,975 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 22:45:49,976 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:49,976 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:49,976 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:49,976 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f2) = 1*f2 Supporting invariants [] [2025-02-17 22:45:49,981 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 22:45:49,982 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:49,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:49,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:49,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:49,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:49,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:49,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:49,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:50,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:50,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:50,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:50,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:50,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:50,040 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 22:45:50,040 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 22:45:50,041 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 400 states and 1179 transitions. cyclomatic complexity: 820 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 22:45:50,077 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 400 states and 1179 transitions. cyclomatic complexity: 820. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 1401 states and 4246 transitions. Complement of second has 5 states. [2025-02-17 22:45:50,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:50,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 22:45:50,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2025-02-17 22:45:50,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 3 letters. Loop has 4 letters. [2025-02-17 22:45:50,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:50,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 7 letters. Loop has 4 letters. [2025-02-17 22:45:50,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:50,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 3 letters. Loop has 8 letters. [2025-02-17 22:45:50,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:50,080 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1401 states and 4246 transitions. [2025-02-17 22:45:50,099 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 22:45:50,104 INFO L131 ngComponentsAnalysis]: Automaton has 79 accepting balls. 532 [2025-02-17 22:45:50,113 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1401 states to 1209 states and 3670 transitions. [2025-02-17 22:45:50,113 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 729 [2025-02-17 22:45:50,115 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 891 [2025-02-17 22:45:50,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1209 states and 3670 transitions. [2025-02-17 22:45:50,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:50,116 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1209 states and 3670 transitions. [2025-02-17 22:45:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states and 3670 transitions. [2025-02-17 22:45:50,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 958. [2025-02-17 22:45:50,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 958 states have (on average 3.1022964509394573) internal successors, (2972), 957 states have internal predecessors, (2972), 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 22:45:50,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 2972 transitions. [2025-02-17 22:45:50,143 INFO L240 hiAutomatonCegarLoop]: Abstraction has 958 states and 2972 transitions. [2025-02-17 22:45:50,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:50,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:45:50,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:45:50,143 INFO L87 Difference]: Start difference. First operand 958 states and 2972 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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 22:45:50,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:50,175 INFO L93 Difference]: Finished difference Result 1527 states and 4486 transitions. [2025-02-17 22:45:50,175 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1527 states and 4486 transitions. [2025-02-17 22:45:50,186 INFO L131 ngComponentsAnalysis]: Automaton has 91 accepting balls. 672 [2025-02-17 22:45:50,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1527 states to 981 states and 2846 transitions. [2025-02-17 22:45:50,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 847 [2025-02-17 22:45:50,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 892 [2025-02-17 22:45:50,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 981 states and 2846 transitions. [2025-02-17 22:45:50,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:50,195 INFO L218 hiAutomatonCegarLoop]: Abstraction has 981 states and 2846 transitions. [2025-02-17 22:45:50,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states and 2846 transitions. [2025-02-17 22:45:50,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 570. [2025-02-17 22:45:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 570 states have (on average 2.924561403508772) internal successors, (1667), 569 states have internal predecessors, (1667), 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 22:45:50,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1667 transitions. [2025-02-17 22:45:50,209 INFO L240 hiAutomatonCegarLoop]: Abstraction has 570 states and 1667 transitions. [2025-02-17 22:45:50,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:45:50,209 INFO L432 stractBuchiCegarLoop]: Abstraction has 570 states and 1667 transitions. [2025-02-17 22:45:50,209 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:45:50,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 570 states and 1667 transitions. [2025-02-17 22:45:50,212 INFO L131 ngComponentsAnalysis]: Automaton has 34 accepting balls. 444 [2025-02-17 22:45:50,212 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:50,212 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:50,213 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:45:50,213 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-17 22:45:50,213 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L14: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x2_5 0) (= v_f1_4 0)) InVars {x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_4, x3=v_x3_5} OutVars{x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_4, x3=v_x3_5} AuxVars[] AssignedVars[]" "[93] L14-->L29-1: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[87] L14-1-->L40: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[90] L15-->L55: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" [2025-02-17 22:45:50,214 INFO L754 eck$LassoCheckResult]: Loop: "[80] L55-->L57: Formula: (< v_x3_1 v_z_5) InVars {x3=v_x3_1, z=v_z_5} OutVars{x3=v_x3_1, z=v_z_5} AuxVars[] AssignedVars[]" "[68] L29-1-->L27: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[74] L40-->L42: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" "[82] L57-->L57-1: Formula: (and (< 0 v_f3_6) (= v_f3_5 0)) InVars {f3=v_f3_6} OutVars{f3=v_f3_5} AuxVars[] AssignedVars[f3]" "[70] L27-->L28: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[71] L28-->L29: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[83] L57-1-->L63: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" "[84] L63-->L55: Formula: (= v_f1_3 1) InVars {} OutVars{f1=v_f1_3} AuxVars[] AssignedVars[f1]" "[76] L42-->L42-1: Formula: (and (< 0 v_f2_6) (= v_f2_5 0)) InVars {f2=v_f2_6} OutVars{f2=v_f2_5} AuxVars[] AssignedVars[f2]" "[77] L42-1-->L48: Formula: (= v_x2_3 (+ v_x2_4 1)) InVars {x2=v_x2_4} OutVars{x2=v_x2_3} AuxVars[] AssignedVars[x2]" "[72] L29-->L29-1: Formula: (and (< 0 v_f1_6) (= v_f1_5 0)) InVars {f1=v_f1_6} OutVars{f1=v_f1_5} AuxVars[] AssignedVars[f1]" "[78] L48-->L40: Formula: (= v_f3_1 1) InVars {} OutVars{f3=v_f3_1} AuxVars[] AssignedVars[f3]" [2025-02-17 22:45:50,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:50,214 INFO L85 PathProgramCache]: Analyzing trace with hash 2892514, now seen corresponding path program 1 times [2025-02-17 22:45:50,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:50,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426870636] [2025-02-17 22:45:50,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:50,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:50,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:50,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:50,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:50,218 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:50,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:50,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:50,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:50,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:50,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:50,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1547776794, now seen corresponding path program 1 times [2025-02-17 22:45:50,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:50,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313260179] [2025-02-17 22:45:50,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:50,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:50,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-17 22:45:50,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-17 22:45:50,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:50,232 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:50,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-17 22:45:50,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-17 22:45:50,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:50,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:50,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:50,241 INFO L85 PathProgramCache]: Analyzing trace with hash -906975673, now seen corresponding path program 1 times [2025-02-17 22:45:50,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:50,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077881298] [2025-02-17 22:45:50,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:50,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:50,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-17 22:45:50,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-17 22:45:50,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:50,272 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 22:45:50,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:50,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077881298] [2025-02-17 22:45:50,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077881298] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:50,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:50,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:45:50,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055641223] [2025-02-17 22:45:50,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:50,387 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:50,388 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:50,388 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:50,388 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:50,388 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:50,388 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,388 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:50,388 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:50,388 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:50,388 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:50,388 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:50,389 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:50,394 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:50,397 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:50,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:50,468 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:50,468 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:50,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:50,471 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 22:45:50,472 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 22:45:50,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:50,474 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:50,485 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:50,485 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f3=1} Honda state: {f3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:50,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:50,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:50,493 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 22:45:50,494 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 22:45:50,496 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:50,496 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:50,507 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:50,507 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f1=0} Honda state: {f1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:50,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:50,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:50,515 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 22:45:50,516 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 22:45:50,518 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:50,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:50,536 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 22:45:50,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:50,538 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 22:45:50,541 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 22:45:50,541 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:50,542 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:50,625 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:50,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:50,629 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:50,629 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:50,630 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:50,630 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:50,630 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:50,630 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,630 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:50,630 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:50,630 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:50,630 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:50,630 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:50,631 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:50,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:50,639 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:50,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:50,709 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:50,709 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:50,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:50,713 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 22:45:50,714 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 22:45:50,715 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 22:45:50,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:50,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:50,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:50,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:50,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:50,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:50,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:50,727 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:50,733 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 22:45:50,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:50,736 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 22:45:50,737 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 22:45:50,738 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 22:45:50,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:50,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:50,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:50,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:50,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:50,749 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:50,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:50,751 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:50,758 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-02-17 22:45:50,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:50,760 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 22:45:50,762 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 22:45:50,763 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 22:45:50,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:50,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:50,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:50,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:50,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:50,776 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:50,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:50,778 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:50,782 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:50,783 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:50,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:50,785 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 22:45:50,787 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 22:45:50,787 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:50,787 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:50,787 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:50,787 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x2) = 1*z - 1*x2 Supporting invariants [] [2025-02-17 22:45:50,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:50,794 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:50,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:50,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:50,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:50,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:50,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:50,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:50,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-17 22:45:50,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-17 22:45:50,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:50,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:50,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:50,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:50,893 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 22:45:50,893 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:45:50,894 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 570 states and 1667 transitions. cyclomatic complexity: 1145 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 22:45:50,955 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 570 states and 1667 transitions. cyclomatic complexity: 1145. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 1965 states and 6033 transitions. Complement of second has 6 states. [2025-02-17 22:45:50,955 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 22:45:50,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 22:45:50,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 63 transitions. [2025-02-17 22:45:50,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 4 letters. Loop has 12 letters. [2025-02-17 22:45:50,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:50,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 16 letters. Loop has 12 letters. [2025-02-17 22:45:50,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:50,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 4 letters. Loop has 24 letters. [2025-02-17 22:45:50,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:50,958 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1965 states and 6033 transitions. [2025-02-17 22:45:50,972 INFO L131 ngComponentsAnalysis]: Automaton has 75 accepting balls. 524 [2025-02-17 22:45:50,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1965 states to 1777 states and 5332 transitions. [2025-02-17 22:45:50,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 759 [2025-02-17 22:45:50,986 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 995 [2025-02-17 22:45:50,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1777 states and 5332 transitions. [2025-02-17 22:45:50,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:50,986 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1777 states and 5332 transitions. [2025-02-17 22:45:50,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states and 5332 transitions. [2025-02-17 22:45:51,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1470. [2025-02-17 22:45:51,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1470 states have (on average 3.012244897959184) internal successors, (4428), 1469 states have internal predecessors, (4428), 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 22:45:51,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-02-17 22:45:51,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 4428 transitions. [2025-02-17 22:45:51,036 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1470 states and 4428 transitions. [2025-02-17 22:45:51,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:51,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:45:51,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:45:51,037 INFO L87 Difference]: Start difference. First operand 1470 states and 4428 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 22:45:51,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:51,048 INFO L93 Difference]: Finished difference Result 227 states and 469 transitions. [2025-02-17 22:45:51,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 227 states and 469 transitions. [2025-02-17 22:45:51,049 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:51,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 227 states to 0 states and 0 transitions. [2025-02-17 22:45:51,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:45:51,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:45:51,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:45:51,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:51,050 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:51,050 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:51,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:45:51,050 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:51,050 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:45:51,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:45:51,051 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:51,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:45:51,056 INFO L201 PluginConnector]: Adding new model interleaved3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:45:51 BoogieIcfgContainer [2025-02-17 22:45:51,056 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:45:51,057 INFO L158 Benchmark]: Toolchain (without parser) took 2848.99ms. Allocated memory was 155.2MB in the beginning and 125.8MB in the end (delta: -29.4MB). Free memory was 82.5MB in the beginning and 78.4MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:51,057 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.73ms. Allocated memory is still 155.2MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:51,057 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.15ms. Allocated memory is still 155.2MB. Free memory was 82.5MB in the beginning and 81.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:51,057 INFO L158 Benchmark]: Boogie Preprocessor took 14.65ms. Allocated memory is still 155.2MB. Free memory was 81.4MB in the beginning and 80.6MB in the end (delta: 772.1kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:51,057 INFO L158 Benchmark]: RCFGBuilder took 200.97ms. Allocated memory is still 155.2MB. Free memory was 80.6MB in the beginning and 70.9MB in the end (delta: 9.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-02-17 22:45:51,058 INFO L158 Benchmark]: BuchiAutomizer took 2610.79ms. Allocated memory was 155.2MB in the beginning and 125.8MB in the end (delta: -29.4MB). Free memory was 70.9MB in the beginning and 78.4MB in the end (delta: -7.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:51,059 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 0.73ms. Allocated memory is still 155.2MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.15ms. Allocated memory is still 155.2MB. Free memory was 82.5MB in the beginning and 81.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 14.65ms. Allocated memory is still 155.2MB. Free memory was 81.4MB in the beginning and 80.6MB in the end (delta: 772.1kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 200.97ms. Allocated memory is still 155.2MB. Free memory was 80.6MB in the beginning and 70.9MB in the end (delta: 9.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 2610.79ms. Allocated memory was 155.2MB in the beginning and 125.8MB in the end (delta: -29.4MB). Free memory was 70.9MB in the beginning and 78.4MB in the end (delta: -7.6MB). There was no memory consumed. 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 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function f1 and consists of 3 locations. One deterministic module has affine ranking function f2 and consists of 3 locations. One deterministic module has affine ranking function z + -1 * x2 and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 1417 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 187 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 107 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital28 mio100 ax100 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf94 smp100 dnf100 smp100 tf109 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s 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 22:45:51,072 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...