/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-1.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 18:17:27,246 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 18:17:27,297 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 18:17:27,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 18:17:27,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 18:17:27,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 18:17:27,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 18:17:27,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 18:17:27,320 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 18:17:27,321 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 18:17:27,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 18:17:27,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 18:17:27,321 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 18:17:27,321 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 18:17:27,321 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 18:17:27,321 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 18:17:27,321 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 18:17:27,321 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 18:17:27,321 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 18:17:27,321 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 18:17:27,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 18:17:27,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:17:27,322 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 18:17:27,322 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 18:17:27,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 18:17:27,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 18:17:27,323 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 18:17:27,323 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 18:17:27,323 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 18:17:27,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 18:17:27,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 18:17:27,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 18:17:27,547 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-26 18:17:27,548 INFO L274 PluginConnector]: CDTParser initialized [2025-04-26 18:17:27,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2025-04-26 18:17:28,862 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9ac77300a/d272d9a0912d41a9b6716b58f2cfa6b5/FLAGb04e8261c [2025-04-26 18:17:29,083 INFO L389 CDTParser]: Found 1 translation units. [2025-04-26 18:17:29,083 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2025-04-26 18:17:29,091 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9ac77300a/d272d9a0912d41a9b6716b58f2cfa6b5/FLAGb04e8261c [2025-04-26 18:17:29,912 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9ac77300a/d272d9a0912d41a9b6716b58f2cfa6b5 [2025-04-26 18:17:29,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 18:17:29,915 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-26 18:17:29,916 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-26 18:17:29,916 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-26 18:17:29,918 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-26 18:17:29,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.04 06:17:29" (1/1) ... [2025-04-26 18:17:29,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@befdad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:29, skipping insertion in model container [2025-04-26 18:17:29,920 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.04 06:17:29" (1/1) ... [2025-04-26 18:17:29,948 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-26 18:17:30,197 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-1.i[30145,30158] [2025-04-26 18:17:30,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-26 18:17:30,221 INFO L200 MainTranslator]: Completed pre-run [2025-04-26 18:17:30,278 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-1.i[30145,30158] [2025-04-26 18:17:30,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-26 18:17:30,310 INFO L204 MainTranslator]: Completed translation [2025-04-26 18:17:30,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:30 WrapperNode [2025-04-26 18:17:30,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-26 18:17:30,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 18:17:30,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 18:17:30,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 18:17:30,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:30" (1/1) ... [2025-04-26 18:17:30,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:30" (1/1) ... [2025-04-26 18:17:30,348 INFO L138 Inliner]: procedures = 163, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2025-04-26 18:17:30,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 18:17:30,349 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 18:17:30,349 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 18:17:30,349 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 18:17:30,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:30" (1/1) ... [2025-04-26 18:17:30,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:30" (1/1) ... [2025-04-26 18:17:30,356 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:30" (1/1) ... [2025-04-26 18:17:30,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:30" (1/1) ... [2025-04-26 18:17:30,358 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:30" (1/1) ... [2025-04-26 18:17:30,359 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:30" (1/1) ... [2025-04-26 18:17:30,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:30" (1/1) ... [2025-04-26 18:17:30,360 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:30" (1/1) ... [2025-04-26 18:17:30,361 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:30" (1/1) ... [2025-04-26 18:17:30,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 18:17:30,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 18:17:30,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 18:17:30,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 18:17:30,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:30" (1/1) ... [2025-04-26 18:17:30,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:17:30,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:17:30,396 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 18:17:30,399 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 18:17:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2025-04-26 18:17:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2025-04-26 18:17:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-26 18:17:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2025-04-26 18:17:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2025-04-26 18:17:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2025-04-26 18:17:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-26 18:17:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 18:17:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 18:17:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2025-04-26 18:17:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2025-04-26 18:17:30,418 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 18:17:30,492 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 18:17:30,493 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 18:17:30,604 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 18:17:30,604 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 18:17:30,628 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 18:17:30,628 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 18:17:30,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:17:30 BoogieIcfgContainer [2025-04-26 18:17:30,628 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 18:17:30,629 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 18:17:30,629 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 18:17:30,633 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 18:17:30,633 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:17:30,634 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.04 06:17:29" (1/3) ... [2025-04-26 18:17:30,634 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28aedec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 06:17:30, skipping insertion in model container [2025-04-26 18:17:30,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:17:30,634 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 06:17:30" (2/3) ... [2025-04-26 18:17:30,634 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28aedec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 06:17:30, skipping insertion in model container [2025-04-26 18:17:30,635 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:17:30,635 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:17:30" (3/3) ... [2025-04-26 18:17:30,635 INFO L376 chiAutomizerObserver]: Analyzing ICFG read_write_lock-1.i [2025-04-26 18:17:30,711 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-04-26 18:17:30,749 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 18:17:30,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 18:17:30,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:17:30,751 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 18:17:30,753 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 18:17:30,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 106 transitions, 240 flow [2025-04-26 18:17:30,851 INFO L116 PetriNetUnfolderBase]: 2/98 cut-off events. [2025-04-26 18:17:30,852 INFO L117 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-04-26 18:17:30,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 98 events. 2/98 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2025-04-26 18:17:30,857 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 106 transitions, 240 flow [2025-04-26 18:17:30,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 98 transitions, 220 flow [2025-04-26 18:17:30,863 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 109 places, 98 transitions, 220 flow [2025-04-26 18:17:30,864 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 98 transitions, 220 flow [2025-04-26 18:17:32,073 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 42977 states, 42973 states have (on average 4.303562702161822) internal successors, (in total 184937), 42976 states have internal predecessors, (184937), 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 18:17:32,142 INFO L171 actionProvider$Eager]: Constructed initial Büchi automaton abstraction (from Petri net) that has 42977 states, 42973 states have (on average 4.303562702161822) internal successors, (in total 184937), 42976 states have internal predecessors, (184937), 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 18:17:32,144 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 18:17:32,841 WARN L140 AmpleReduction]: Number of pruned transitions: 8993 [2025-04-26 18:17:32,841 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 18:17:32,841 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 0 [2025-04-26 18:17:32,841 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:420 [2025-04-26 18:17:32,842 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:3438 [2025-04-26 18:17:32,842 WARN L145 AmpleReduction]: Times succ was already a loop node:0 [2025-04-26 18:17:32,842 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:0 [2025-04-26 18:17:32,842 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 18:17:32,846 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 3859 states, 3855 states have (on average 1.3463035019455254) internal successors, (in total 5190), 3858 states have internal predecessors, (5190), 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 18:17:32,852 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 18:17:32,852 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 18:17:32,852 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 18:17:32,853 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 18:17:32,853 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 18:17:32,853 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 18:17:32,853 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 18:17:32,853 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 18:17:32,857 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 3859 states, 3855 states have (on average 1.3463035019455254) internal successors, (in total 5190), 3858 states have internal predecessors, (5190), 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 18:17:32,953 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:17:32,954 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 18:17:32,964 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-26 18:17:32,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 06:17:32 BoogieIcfgContainer [2025-04-26 18:17:32,965 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 18:17:32,966 INFO L158 Benchmark]: Toolchain (without parser) took 3051.09ms. Allocated memory was 155.2MB in the beginning and 318.8MB in the end (delta: 163.6MB). Free memory was 106.0MB in the beginning and 146.2MB in the end (delta: -40.2MB). Peak memory consumption was 220.3MB. Max. memory is 8.0GB. [2025-04-26 18:17:32,966 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 159.4MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:17:32,967 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.85ms. Allocated memory is still 155.2MB. Free memory was 106.0MB in the beginning and 84.2MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2025-04-26 18:17:32,967 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.91ms. Allocated memory is still 155.2MB. Free memory was 84.2MB in the beginning and 82.3MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 18:17:32,967 INFO L158 Benchmark]: Boogie Preprocessor took 14.16ms. Allocated memory is still 155.2MB. Free memory was 82.3MB in the beginning and 81.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:17:32,967 INFO L158 Benchmark]: RCFGBuilder took 260.44ms. Allocated memory is still 155.2MB. Free memory was 81.1MB in the beginning and 66.8MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2025-04-26 18:17:32,969 INFO L158 Benchmark]: BuchiAutomizer took 2336.15ms. Allocated memory was 155.2MB in the beginning and 318.8MB in the end (delta: 163.6MB). Free memory was 66.8MB in the beginning and 146.2MB in the end (delta: -79.4MB). Peak memory consumption was 178.4MB. Max. memory is 8.0GB. [2025-04-26 18:17:32,972 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 159.4MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 394.85ms. Allocated memory is still 155.2MB. Free memory was 106.0MB in the beginning and 84.2MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.91ms. Allocated memory is still 155.2MB. Free memory was 84.2MB in the beginning and 82.3MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.16ms. Allocated memory is still 155.2MB. Free memory was 82.3MB in the beginning and 81.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 260.44ms. Allocated memory is still 155.2MB. Free memory was 81.1MB in the beginning and 66.8MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * BuchiAutomizer took 2336.15ms. Allocated memory was 155.2MB in the beginning and 318.8MB in the end (delta: 163.6MB). Free memory was 66.8MB in the beginning and 146.2MB in the end (delta: -79.4MB). Peak memory consumption was 178.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s 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: 2.1s InitialAbstraction: Time to compute Ample Reduction [ms]: 2097, Number of transitions in reduction automaton: 5190, Number of states in reduction automaton: 3859, 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 18:17:32,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...