/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2023/motivating.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:21:33,995 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:21:34,055 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:21:34,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:21:34,060 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:21:34,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:21:34,082 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:21:34,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:21:34,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:21:34,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:21:34,083 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:21:34,083 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:21:34,083 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:21:34,083 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:21:34,083 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:21:34,083 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:21:34,083 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:21:34,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:21:34,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:21:34,083 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:21:34,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:21:34,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:21:34,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:21:34,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:21:34,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:21:34,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:21:34,084 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:21:34,084 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:21:34,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:21:34,084 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:21:34,084 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:21:34,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:21:34,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:21:34,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:21:34,084 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:21:34,086 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:21:34,086 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:21:34,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:21:34,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:21:34,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:21:34,322 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:21:34,322 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:21:34,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/POPL2023/motivating.bpl [2025-04-26 16:21:34,325 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/POPL2023/motivating.bpl' [2025-04-26 16:21:34,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:21:34,346 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:21:34,346 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:21:34,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:21:34,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:21:34,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "motivating.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:34" (1/1) ... [2025-04-26 16:21:34,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "motivating.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:34" (1/1) ... [2025-04-26 16:21:34,386 INFO L138 Inliner]: procedures = 4, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:21:34,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:21:34,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:21:34,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:21:34,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:21:34,393 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "motivating.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:34" (1/1) ... [2025-04-26 16:21:34,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "motivating.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:34" (1/1) ... [2025-04-26 16:21:34,395 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "motivating.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:34" (1/1) ... [2025-04-26 16:21:34,395 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "motivating.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:34" (1/1) ... [2025-04-26 16:21:34,399 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "motivating.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:34" (1/1) ... [2025-04-26 16:21:34,400 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "motivating.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:34" (1/1) ... [2025-04-26 16:21:34,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "motivating.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:34" (1/1) ... [2025-04-26 16:21:34,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "motivating.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:34" (1/1) ... [2025-04-26 16:21:34,406 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "motivating.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:34" (1/1) ... [2025-04-26 16:21:34,416 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:21:34,416 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:21:34,416 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:21:34,417 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:21:34,417 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "motivating.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:34" (1/1) ... [2025-04-26 16:21:34,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:34,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:34,443 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 16:21:34,445 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 16:21:34,470 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:21:34,470 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:21:34,470 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:21:34,470 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:21:34,470 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:21:34,470 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:21:34,470 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:21:34,470 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:21:34,471 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:21:34,471 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:21:34,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:21:34,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:21:34,471 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 16:21:34,508 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:21:34,509 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:21:34,624 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:21:34,624 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:21:34,635 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:21:34,636 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-04-26 16:21:34,637 INFO L201 PluginConnector]: Adding new model motivating.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:21:34 BoogieIcfgContainer [2025-04-26 16:21:34,637 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:21:34,638 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:21:34,638 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:21:34,644 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:21:34,644 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:21:34,645 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "motivating.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:34" (1/2) ... [2025-04-26 16:21:34,646 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4eefb25d and model type motivating.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:21:34, skipping insertion in model container [2025-04-26 16:21:34,646 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:21:34,646 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "motivating.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:21:34" (2/2) ... [2025-04-26 16:21:34,647 INFO L376 chiAutomizerObserver]: Analyzing ICFG motivating.bpl [2025-04-26 16:21:34,737 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2025-04-26 16:21:34,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 63 transitions, 168 flow [2025-04-26 16:21:34,799 INFO L116 PetriNetUnfolderBase]: 12/51 cut-off events. [2025-04-26 16:21:34,800 INFO L117 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-04-26 16:21:34,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 51 events. 12/51 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 49. Up to 3 conditions per place. [2025-04-26 16:21:34,804 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 63 transitions, 168 flow [2025-04-26 16:21:34,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 51 transitions, 138 flow [2025-04-26 16:21:34,809 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 58 places, 51 transitions, 138 flow [2025-04-26 16:21:34,817 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:21:34,817 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:21:34,817 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:21:34,817 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:21:34,818 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:21:34,818 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:21:34,818 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:21:34,818 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:21:34,819 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:21:36,329 INFO L131 ngComponentsAnalysis]: Automaton has 393 accepting balls. 13275 [2025-04-26 16:21:36,329 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:21:36,329 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:21:36,333 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:21:36,334 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:21:36,334 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:21:36,334 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 13310 states, but on-demand construction may add more states [2025-04-26 16:21:36,758 INFO L131 ngComponentsAnalysis]: Automaton has 393 accepting balls. 13275 [2025-04-26 16:21:36,760 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:21:36,760 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:21:36,762 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:21:36,762 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:21:36,767 INFO L752 eck$LassoCheckResult]: Stem: "[89] $Ultimate##0-->L19: Formula: (and (<= 0 v_ULTIMATE.start_m_1) (< v_ULTIMATE.start_m_1 v_N_7)) InVars {ULTIMATE.start_m=v_ULTIMATE.start_m_1, N=v_N_7} OutVars{ULTIMATE.start_m=v_ULTIMATE.start_m_1, N=v_N_7} AuxVars[] AssignedVars[]" "[92] L19-->L21: Formula: (= v_i_5 0) InVars {} OutVars{i=v_i_5} AuxVars[] AssignedVars[i]" "[133] L21-->L43-2: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" [2025-04-26 16:21:36,767 INFO L754 eck$LassoCheckResult]: Loop: "[95] L43-2-->L43: Formula: true InVars {} OutVars{i=v_i_1} AuxVars[] AssignedVars[i]" "[97] L43-->L43-2: Formula: (or (<= v_N_2 v_i_4) (< v_i_4 0)) InVars {i=v_i_4, N=v_N_2} OutVars{i=v_i_4, N=v_N_2} AuxVars[] AssignedVars[]" [2025-04-26 16:21:36,772 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:36,773 INFO L85 PathProgramCache]: Analyzing trace with hash 118305, now seen corresponding path program 1 times [2025-04-26 16:21:36,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:36,780 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014843171] [2025-04-26 16:21:36,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:36,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:36,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:36,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:36,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:36,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:36,841 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:36,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:36,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:36,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:36,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:36,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:36,868 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:36,868 INFO L85 PathProgramCache]: Analyzing trace with hash 4003, now seen corresponding path program 1 times [2025-04-26 16:21:36,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:36,869 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766194297] [2025-04-26 16:21:36,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:36,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:36,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:21:36,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:21:36,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:36,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:36,877 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:36,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:21:36,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:21:36,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:36,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:36,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:36,887 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:36,887 INFO L85 PathProgramCache]: Analyzing trace with hash 113694147, now seen corresponding path program 1 times [2025-04-26 16:21:36,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:36,887 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257951136] [2025-04-26 16:21:36,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:36,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:36,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:21:36,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:21:36,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:36,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:36,897 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:36,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:21:36,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:21:36,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:36,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:36,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:36,994 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:36,994 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:36,995 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:36,995 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:36,995 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:21:36,995 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:36,995 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:36,995 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:36,995 INFO L132 ssoRankerPreferences]: Filename of dumped script: motivating.bpl_petrified1_Iteration1_Lasso [2025-04-26 16:21:36,995 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:36,995 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:37,005 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:37,013 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:37,067 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:37,067 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:21:37,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:37,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:37,071 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 16:21:37,072 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 16:21:37,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:21:37,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:37,106 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:21:37,107 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork1_thidvar0=0} Honda state: {thread1Thread1of1ForFork1_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:21:37,119 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 [2025-04-26 16:21:37,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:37,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:37,123 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 16:21:37,125 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 16:21:37,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:21:37,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:37,170 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 16:21:37,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:37,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:37,172 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 16:21:37,176 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 16:21:37,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:21:37,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:37,229 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:21:37,230 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {N=5, ULTIMATE.start_m=4, i=0} Honda state: {N=5, ULTIMATE.start_m=4, i=0} Generalized eigenvectors: [{N=7, ULTIMATE.start_m=6, i=0}, {N=0, ULTIMATE.start_m=0, i=7}, {N=-7, ULTIMATE.start_m=-6, i=-1}] Lambdas: [1, 0, 1] Nus: [1, 0] [2025-04-26 16:21:37,241 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 16:21:37,269 INFO L201 PluginConnector]: Adding new model motivating.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:21:37 BoogieIcfgContainer [2025-04-26 16:21:37,270 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:21:37,275 INFO L158 Benchmark]: Toolchain (without parser) took 2924.56ms. Allocated memory was 155.2MB in the beginning and 650.1MB in the end (delta: 494.9MB). Free memory was 82.1MB in the beginning and 450.0MB in the end (delta: -367.9MB). Peak memory consumption was 165.8MB. Max. memory is 8.0GB. [2025-04-26 16:21:37,276 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.84ms. Allocated memory is still 155.2MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:21:37,276 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.62ms. Allocated memory is still 155.2MB. Free memory was 81.9MB in the beginning and 80.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:21:37,276 INFO L158 Benchmark]: Boogie Preprocessor took 28.46ms. Allocated memory is still 155.2MB. Free memory was 80.1MB in the beginning and 79.1MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:21:37,276 INFO L158 Benchmark]: RCFGBuilder took 220.55ms. Allocated memory is still 155.2MB. Free memory was 79.1MB in the beginning and 69.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:21:37,277 INFO L158 Benchmark]: BuchiAutomizer took 2631.63ms. Allocated memory was 155.2MB in the beginning and 650.1MB in the end (delta: 494.9MB). Free memory was 69.3MB in the beginning and 450.0MB in the end (delta: -380.7MB). Peak memory consumption was 153.3MB. Max. memory is 8.0GB. [2025-04-26 16:21:37,278 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 0.84ms. Allocated memory is still 155.2MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.62ms. Allocated memory is still 155.2MB. Free memory was 81.9MB in the beginning and 80.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 28.46ms. Allocated memory is still 155.2MB. Free memory was 80.1MB in the beginning and 79.1MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 220.55ms. Allocated memory is still 155.2MB. Free memory was 79.1MB in the beginning and 69.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2631.63ms. Allocated memory was 155.2MB in the beginning and 650.1MB in the end (delta: 494.9MB). Free memory was 69.3MB in the beginning and 450.0MB in the end (delta: -380.7MB). Peak memory consumption was 153.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp87 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq119 hnf95 smp100 dnf100 smp100 tf100 neg100 sie116 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 41]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {N=5, i=0, m=4, freshIdentifier7=0} State at position 1 is {N=5, i=0, m=4, freshIdentifier8=1} For i>1, the state at position i is {N=5 + sum_{k=0}^i 7 + -7, i=0 + sum_{k=0}^i 7*0^k + 7*k + -1, m=4 + sum_{k=0}^i 6 + -6, freshIdentifier9=1 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [1, 0, 1] Mus: [1, 0] - NonterminatingLassoResult [Line: 41]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L17] 0 assume 0 <= m && m < N; [L19] 0 i := 0; [L21] FORK 0 fork 1 thread1(); Loop: [L42] havoc i; [L43] COND FALSE !(0 <= i && i < N) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-04-26 16:21:37,310 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...