/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/gemcutter/Termination.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:29:02,372 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:29:02,418 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 16:29:02,421 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:29:02,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:29:02,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 16:29:02,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 16:29:02,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:29:02,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:29:02,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:29:02,444 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:29:02,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:29:02,444 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:29:02,444 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:29:02,444 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:29:02,444 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:29:02,444 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:29:02,444 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:29:02,444 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:29:02,444 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 16:29:02,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:29:02,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:29:02,444 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:29:02,444 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:29:02,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:29:02,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:29:02,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:29:02,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:29:02,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:29:02,445 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:29:02,445 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:29:02,445 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:29:02,445 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:29:02,445 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:29:02,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:29:02,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:29:02,445 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:29:02,445 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:29:02,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 16:29:02,445 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 16:29:02,445 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 16:29:02,445 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:29:02,445 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:29:02,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:29:02,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:29:02,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:29:02,663 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-26 16:29:02,663 INFO L274 PluginConnector]: CDTParser initialized [2025-04-26 16:29:02,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2025-04-26 16:29:03,932 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8cdfbc112/94ef7e0a622643ac927889989c8e9754/FLAG15c4adac2 [2025-04-26 16:29:04,173 INFO L389 CDTParser]: Found 1 translation units. [2025-04-26 16:29:04,173 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2025-04-26 16:29:04,182 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8cdfbc112/94ef7e0a622643ac927889989c8e9754/FLAG15c4adac2 [2025-04-26 16:29:04,934 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8cdfbc112/94ef7e0a622643ac927889989c8e9754 [2025-04-26 16:29:04,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:29:04,936 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-26 16:29:04,937 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-26 16:29:04,937 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-26 16:29:04,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-26 16:29:04,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.04 04:29:04" (1/1) ... [2025-04-26 16:29:04,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b80094d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:04, skipping insertion in model container [2025-04-26 16:29:04,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.04 04:29:04" (1/1) ... [2025-04-26 16:29:04,965 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-26 16:29:05,235 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i[31244,31257] [2025-04-26 16:29:05,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-26 16:29:05,250 INFO L200 MainTranslator]: Completed pre-run [2025-04-26 16:29:05,296 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i[31244,31257] [2025-04-26 16:29:05,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-26 16:29:05,325 INFO L204 MainTranslator]: Completed translation [2025-04-26 16:29:05,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:05 WrapperNode [2025-04-26 16:29:05,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-26 16:29:05,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:29:05,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:29:05,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:29:05,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:05" (1/1) ... [2025-04-26 16:29:05,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:05" (1/1) ... [2025-04-26 16:29:05,354 INFO L138 Inliner]: procedures = 172, calls = 30, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 94 [2025-04-26 16:29:05,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:29:05,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:29:05,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:29:05,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:29:05,361 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:05" (1/1) ... [2025-04-26 16:29:05,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:05" (1/1) ... [2025-04-26 16:29:05,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:05" (1/1) ... [2025-04-26 16:29:05,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:05" (1/1) ... [2025-04-26 16:29:05,372 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:05" (1/1) ... [2025-04-26 16:29:05,372 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:05" (1/1) ... [2025-04-26 16:29:05,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:05" (1/1) ... [2025-04-26 16:29:05,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:05" (1/1) ... [2025-04-26 16:29:05,378 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:05" (1/1) ... [2025-04-26 16:29:05,380 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:29:05,381 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:29:05,381 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:29:05,381 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:29:05,384 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:05" (1/1) ... [2025-04-26 16:29:05,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:29:05,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:29:05,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-26 16:29:05,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-26 16:29:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-26 16:29:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-26 16:29:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2025-04-26 16:29:05,427 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2025-04-26 16:29:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-26 16:29:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-26 16:29:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:29:05,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:29:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2025-04-26 16:29:05,427 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2025-04-26 16:29:05,428 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 16:29:05,510 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:29:05,512 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:29:05,596 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:29:05,596 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:29:05,624 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:29:05,625 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:29:05,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:29:05 BoogieIcfgContainer [2025-04-26 16:29:05,625 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:29:05,626 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:29:05,626 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:29:05,630 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:29:05,630 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:29:05,630 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.04 04:29:04" (1/3) ... [2025-04-26 16:29:05,631 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ab769c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:29:05, skipping insertion in model container [2025-04-26 16:29:05,631 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:29:05,631 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:29:05" (2/3) ... [2025-04-26 16:29:05,631 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ab769c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:29:05, skipping insertion in model container [2025-04-26 16:29:05,631 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:29:05,631 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:29:05" (3/3) ... [2025-04-26 16:29:05,632 INFO L376 chiAutomizerObserver]: Analyzing ICFG read_write_lock-2.i [2025-04-26 16:29:05,704 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-04-26 16:29:05,735 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 16:29:05,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 16:29:05,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:29:05,738 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-26 16:29:05,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-26 16:29:05,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 98 transitions, 224 flow [2025-04-26 16:29:05,848 INFO L116 PetriNetUnfolderBase]: 2/90 cut-off events. [2025-04-26 16:29:05,852 INFO L117 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-04-26 16:29:05,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 90 events. 2/90 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2025-04-26 16:29:05,857 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 98 transitions, 224 flow [2025-04-26 16:29:05,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 90 transitions, 204 flow [2025-04-26 16:29:05,863 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 101 places, 90 transitions, 204 flow [2025-04-26 16:29:05,869 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 16:29:06,884 WARN L140 AmpleReduction]: Number of pruned transitions: 10299 [2025-04-26 16:29:06,884 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 16:29:06,885 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 0 [2025-04-26 16:29:06,885 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:866 [2025-04-26 16:29:06,885 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:3991 [2025-04-26 16:29:06,885 WARN L145 AmpleReduction]: Times succ was already a loop node:0 [2025-04-26 16:29:06,885 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:0 [2025-04-26 16:29:06,885 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 16:29:06,903 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 4858 states, 4854 states have (on average 1.661104243922538) internal successors, (in total 8063), 4857 states have internal predecessors, (8063), 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 16:29:06,909 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:29:06,909 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:29:06,909 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:29:06,909 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:29:06,910 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:29:06,910 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:29:06,910 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:29:06,910 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:29:06,919 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4858 states, 4854 states have (on average 1.661104243922538) internal successors, (in total 8063), 4857 states have internal predecessors, (8063), 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 16:29:07,019 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:29:07,019 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:29:07,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-04-26 16:29:07,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:29:07 BoogieIcfgContainer [2025-04-26 16:29:07,031 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:29:07,032 INFO L158 Benchmark]: Toolchain (without parser) took 2095.55ms. Allocated memory was 125.8MB in the beginning and 314.6MB in the end (delta: 188.7MB). Free memory was 86.0MB in the beginning and 157.3MB in the end (delta: -71.3MB). Peak memory consumption was 116.9MB. Max. memory is 8.0GB. [2025-04-26 16:29:07,032 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:29:07,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.52ms. Allocated memory is still 125.8MB. Free memory was 86.0MB in the beginning and 64.0MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2025-04-26 16:29:07,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.45ms. Allocated memory is still 125.8MB. Free memory was 64.0MB in the beginning and 62.0MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:29:07,033 INFO L158 Benchmark]: Boogie Preprocessor took 25.56ms. Allocated memory is still 125.8MB. Free memory was 62.0MB in the beginning and 60.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:29:07,033 INFO L158 Benchmark]: RCFGBuilder took 244.16ms. Allocated memory is still 125.8MB. Free memory was 60.9MB in the beginning and 46.2MB in the end (delta: 14.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 16:29:07,035 INFO L158 Benchmark]: BuchiAutomizer took 1404.80ms. Allocated memory was 125.8MB in the beginning and 314.6MB in the end (delta: 188.7MB). Free memory was 46.2MB in the beginning and 157.3MB in the end (delta: -111.0MB). Peak memory consumption was 79.2MB. Max. memory is 8.0GB. [2025-04-26 16:29:07,038 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 388.52ms. Allocated memory is still 125.8MB. Free memory was 86.0MB in the beginning and 64.0MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.45ms. Allocated memory is still 125.8MB. Free memory was 64.0MB in the beginning and 62.0MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.56ms. Allocated memory is still 125.8MB. Free memory was 62.0MB in the beginning and 60.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 244.16ms. Allocated memory is still 125.8MB. Free memory was 60.9MB in the beginning and 46.2MB in the end (delta: 14.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 1404.80ms. Allocated memory was 125.8MB in the beginning and 314.6MB in the end (delta: 188.7MB). Free memory was 46.2MB in the beginning and 157.3MB in the end (delta: -111.0MB). Peak memory consumption was 79.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 0 iterations. TraceHistogramMax:0. Analysis of lassos took 0.0s. 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: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 1.1s InitialAbstraction: Time to compute Ample Reduction [ms]: 1155, Number of transitions in reduction automaton: 8063, Number of states in reduction automaton: 4858, Underlying: - StatisticsResult: Constructed decomposition of program Trivial decomposition. There is no loop in your program. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:29:07,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...