/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/2_thr/varied-delta.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:24:26,030 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:24:26,086 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:24:26,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:24:26,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:24:26,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:24:26,115 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:24:26,115 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:24:26,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:24:26,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:24:26,116 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:24:26,116 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:24:26,116 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:24:26,116 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:24:26,116 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:24:26,116 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:24:26,116 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:24:26,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:24:26,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:24:26,118 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:24:26,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:24:26,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:24:26,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:24:26,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:24:26,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:24:26,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:24:26,118 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:24:26,118 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:24:26,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:24:26,118 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:24:26,119 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:24:26,119 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:24:26,119 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:24:26,119 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:24:26,119 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:24:26,120 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:24:26,120 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:24:26,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:24:26,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:24:26,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:24:26,342 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:24:26,342 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:24:26,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/2_thr/varied-delta.c.bpl [2025-04-26 16:24:26,343 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/2_thr/varied-delta.c.bpl' [2025-04-26 16:24:26,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:24:26,354 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:24:26,354 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:26,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:24:26,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:24:26,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:26,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:26,386 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:24:26,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:26,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:24:26,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:24:26,387 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:24:26,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:26,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:26,392 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:26,392 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:26,398 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:26,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:26,402 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:26,402 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:26,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:26,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:24:26,410 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:24:26,410 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:24:26,410 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:24:26,412 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/1) ... [2025-04-26 16:24:26,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:26,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-04-26 16:24:26,462 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:24:26,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:24:26,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:24:26,463 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:24:26,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:24:26,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:24:26,464 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:24:26,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:24:26,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:24:26,465 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:24:26,500 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:24:26,501 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:24:26,546 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:24:26,546 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:24:26,553 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:24:26,553 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:24:26,553 INFO L201 PluginConnector]: Adding new model varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:26 BoogieIcfgContainer [2025-04-26 16:24:26,553 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:24:26,554 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:24:26,554 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:24:26,558 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:24:26,558 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:26,559 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:26" (1/2) ... [2025-04-26 16:24:26,559 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c015309 and model type varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:24:26, skipping insertion in model container [2025-04-26 16:24:26,560 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:26,560 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:26" (2/2) ... [2025-04-26 16:24:26,560 INFO L376 chiAutomizerObserver]: Analyzing ICFG varied-delta.c.bpl [2025-04-26 16:24:26,594 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 16:24:26,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 21 places, 18 transitions, 50 flow [2025-04-26 16:24:26,638 INFO L116 PetriNetUnfolderBase]: 2/14 cut-off events. [2025-04-26 16:24:26,639 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 16:24:26,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 14 events. 2/14 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 16 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2025-04-26 16:24:26,642 INFO L82 GeneralOperation]: Start removeDead. Operand has 21 places, 18 transitions, 50 flow [2025-04-26 16:24:26,644 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 14 transitions, 40 flow [2025-04-26 16:24:26,646 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 19 places, 14 transitions, 40 flow [2025-04-26 16:24:26,654 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:24:26,654 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:24:26,654 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:24:26,654 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:24:26,654 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:24:26,654 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:24:26,654 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:24:26,655 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:24:26,656 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:24:26,676 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 16 [2025-04-26 16:24:26,676 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:26,676 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:26,680 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:24:26,680 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:26,680 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:24:26,680 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 27 states, but on-demand construction may add more states [2025-04-26 16:24:26,682 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 16 [2025-04-26 16:24:26,682 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:26,682 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:26,682 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:24:26,682 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:26,686 INFO L752 eck$LassoCheckResult]: Stem: "[30] $Ultimate##0-->L12: Formula: (< 0 v_d_6) InVars {d=v_d_6} OutVars{d=v_d_6} AuxVars[] AssignedVars[]" "[47] L12-->L21: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" [2025-04-26 16:24:26,686 INFO L754 eck$LassoCheckResult]: Loop: "[35] L21-->L23: 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[]" "[37] L23-->L21: Formula: (= v_x1_2 (+ v_x1_3 v_d_1)) InVars {x1=v_x1_3, d=v_d_1} OutVars{x1=v_x1_2, d=v_d_1} AuxVars[] AssignedVars[x1]" [2025-04-26 16:24:26,689 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1938, now seen corresponding path program 1 times [2025-04-26 16:24:26,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,695 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689709955] [2025-04-26 16:24:26,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,747 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,753 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,753 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,765 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:26,768 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,769 INFO L85 PathProgramCache]: Analyzing trace with hash 2083, now seen corresponding path program 1 times [2025-04-26 16:24:26,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,769 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266455304] [2025-04-26 16:24:26,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,778 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:26,787 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1863540, now seen corresponding path program 1 times [2025-04-26 16:24:26,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,787 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218113556] [2025-04-26 16:24:26,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:26,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:26,797 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,797 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:26,801 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:26,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,805 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:26,883 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:26,884 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:26,884 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:26,884 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:26,884 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:26,884 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,884 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:26,884 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:26,885 INFO L132 ssoRankerPreferences]: Filename of dumped script: varied-delta.c.bpl_petrified1_Iteration1_Lasso [2025-04-26 16:24:26,885 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:26,885 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:26,895 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:26,911 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:26,959 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:26,959 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:26,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:26,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-04-26 16:24:26,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:26,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:26,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:26,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,994 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:26,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:24:26,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:26,997 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:27,143 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:27,150 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-04-26 16:24:27,150 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:27,150 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:27,150 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:27,150 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:27,150 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:27,150 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,150 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:27,151 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:27,151 INFO L132 ssoRankerPreferences]: Filename of dumped script: varied-delta.c.bpl_petrified1_Iteration1_Lasso [2025-04-26 16:24:27,151 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:27,151 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:27,152 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,168 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,207 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:27,211 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:27,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,215 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:27,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:24:27,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:27,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:27,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:27,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:27,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:27,243 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:27,243 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:27,253 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:27,265 INFO L436 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2025-04-26 16:24:27,266 INFO L437 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2025-04-26 16:24:27,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,272 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:27,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:24:27,273 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:27,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-04-26 16:24:27,291 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:24:27,292 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:27,292 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x1) = 1*z - 1*x1 Supporting invariants [1*d - 1 >= 0] [2025-04-26 16:24:27,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-04-26 16:24:27,304 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:24:27,352 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:27,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:27,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:27,361 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:24:27,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:27,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:27,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:27,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:27,381 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:24:27,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:27,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:27,463 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2025-04-26 16:24:27,466 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 27 states, but on-demand construction may add more states Second operand has 4 states, 4 states have (on average 1.0) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:27,605 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 27 states, but on-demand construction may add more states. Second operand has 4 states, 4 states have (on average 1.0) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 70 states and 151 transitions. Complement of second has 7 states. [2025-04-26 16:24:27,609 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:27,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:27,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2025-04-26 16:24:27,623 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 2 letters. [2025-04-26 16:24:27,624 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,624 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:24:27,624 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,624 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:24:27,624 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,625 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 151 transitions. [2025-04-26 16:24:27,629 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2025-04-26 16:24:27,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 30 states and 66 transitions. [2025-04-26 16:24:27,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2025-04-26 16:24:27,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2025-04-26 16:24:27,636 INFO L74 IsDeterministic]: Start isDeterministic. Operand 30 states and 66 transitions. [2025-04-26 16:24:27,636 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:27,636 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 66 transitions. [2025-04-26 16:24:27,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 66 transitions. [2025-04-26 16:24:27,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2025-04-26 16:24:27,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 2.25) internal successors, (in total 54), 23 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:27,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 54 transitions. [2025-04-26 16:24:27,654 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 54 transitions. [2025-04-26 16:24:27,654 INFO L438 stractBuchiCegarLoop]: Abstraction has 24 states and 54 transitions. [2025-04-26 16:24:27,654 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:24:27,654 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 54 transitions. [2025-04-26 16:24:27,655 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2025-04-26 16:24:27,655 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:27,655 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:27,655 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:24:27,655 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:27,656 INFO L752 eck$LassoCheckResult]: Stem: "[30] $Ultimate##0-->L12: Formula: (< 0 v_d_6) InVars {d=v_d_6} OutVars{d=v_d_6} AuxVars[] AssignedVars[]" "[47] L12-->L21: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[44] L12-1-->L30: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" [2025-04-26 16:24:27,656 INFO L754 eck$LassoCheckResult]: Loop: "[39] L30-->L32: Formula: (< v_d_2 v_w_1) InVars {d=v_d_2, w=v_w_1} OutVars{d=v_d_2, w=v_w_1} AuxVars[] AssignedVars[]" "[41] L32-->L30: Formula: (= v_d_3 (+ v_d_4 1)) InVars {d=v_d_4} OutVars{d=v_d_3} AuxVars[] AssignedVars[d]" [2025-04-26 16:24:27,656 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,656 INFO L85 PathProgramCache]: Analyzing trace with hash 60122, now seen corresponding path program 1 times [2025-04-26 16:24:27,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:27,656 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326456263] [2025-04-26 16:24:27,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:27,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:27,659 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:27,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:27,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,660 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:27,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:27,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:27,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,663 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:27,663 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,663 INFO L85 PathProgramCache]: Analyzing trace with hash 2211, now seen corresponding path program 1 times [2025-04-26 16:24:27,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:27,663 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022484110] [2025-04-26 16:24:27,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:27,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:27,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:27,666 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:27,666 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,666 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:27,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:27,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:27,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,668 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:27,668 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,669 INFO L85 PathProgramCache]: Analyzing trace with hash 57778492, now seen corresponding path program 1 times [2025-04-26 16:24:27,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:27,669 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374702094] [2025-04-26 16:24:27,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:27,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:27,670 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:27,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:27,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,672 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:27,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:27,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:27,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,675 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:27,695 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:27,695 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:27,696 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:27,696 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:27,696 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:27,696 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,696 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:27,696 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:27,696 INFO L132 ssoRankerPreferences]: Filename of dumped script: varied-delta.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:24:27,696 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:27,696 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:27,697 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,716 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:27,716 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:27,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,719 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:27,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 16:24:27,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:27,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:27,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 16:24:27,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,744 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:27,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 16:24:27,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:27,747 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:27,811 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:27,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:24:27,815 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:27,815 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:27,815 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:27,815 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:27,815 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:27,815 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,815 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:27,815 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:27,815 INFO L132 ssoRankerPreferences]: Filename of dumped script: varied-delta.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:24:27,815 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:27,815 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:27,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,833 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:27,833 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:27,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,835 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:27,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 16:24:27,837 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:27,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:27,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:27,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:27,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:27,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:27,848 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:27,848 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:27,850 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:27,852 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:24:27,852 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:27,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,854 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:27,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 16:24:27,856 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:27,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-04-26 16:24:27,859 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:27,859 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:27,859 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(d, w) = -1*d + 1*w Supporting invariants [] [2025-04-26 16:24:27,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 16:24:27,865 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:27,881 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,886 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:27,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:27,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:27,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:27,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:27,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:27,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:27,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:27,898 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:27,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:27,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:27,913 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:27,914 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 54 transitions. cyclomatic complexity: 37 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:27,939 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 54 transitions. cyclomatic complexity: 37. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 61 states and 132 transitions. Complement of second has 6 states. [2025-04-26 16:24:27,939 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:27,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:27,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2025-04-26 16:24:27,940 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 16:24:27,940 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,940 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:24:27,940 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,940 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 16:24:27,940 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 132 transitions. [2025-04-26 16:24:27,942 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:27,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 0 states and 0 transitions. [2025-04-26 16:24:27,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:24:27,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:24:27,942 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:24:27,942 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:24:27,942 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:27,942 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:27,942 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:27,942 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:24:27,942 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:24:27,943 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:27,943 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:24:27,947 INFO L201 PluginConnector]: Adding new model varied-delta.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:24:27 BoogieIcfgContainer [2025-04-26 16:24:27,948 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:24:27,948 INFO L158 Benchmark]: Toolchain (without parser) took 1594.58ms. Allocated memory is still 155.2MB. Free memory was 85.6MB in the beginning and 92.8MB in the end (delta: -7.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:27,948 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 155.2MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:27,948 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.77ms. Allocated memory is still 155.2MB. Free memory was 85.6MB in the beginning and 83.7MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:24:27,949 INFO L158 Benchmark]: Boogie Preprocessor took 22.53ms. Allocated memory is still 155.2MB. Free memory was 83.7MB in the beginning and 82.8MB in the end (delta: 920.1kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:27,949 INFO L158 Benchmark]: RCFGBuilder took 143.34ms. Allocated memory is still 155.2MB. Free memory was 82.7MB in the beginning and 74.3MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:24:27,949 INFO L158 Benchmark]: BuchiAutomizer took 1393.51ms. Allocated memory is still 155.2MB. Free memory was 74.2MB in the beginning and 92.8MB in the end (delta: -18.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:27,950 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 0.16ms. Allocated memory is still 155.2MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.77ms. Allocated memory is still 155.2MB. Free memory was 85.6MB in the beginning and 83.7MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.53ms. Allocated memory is still 155.2MB. Free memory was 83.7MB in the beginning and 82.8MB in the end (delta: 920.1kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 143.34ms. Allocated memory is still 155.2MB. Free memory was 82.7MB in the beginning and 74.3MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1393.51ms. Allocated memory is still 155.2MB. Free memory was 74.2MB in the beginning and 92.8MB in the end (delta: -18.6MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 16 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp88 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf105 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 80ms VariablesStem: 1 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + z and consists of 5 locations. One deterministic module has affine ranking function -1 * d + w and consists of 4 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:24:27,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...