./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stateful01-1.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/stateful01-1.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 76401ed0 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/stateful01-1.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-76401ed-m [2024-06-20 18:16:15,105 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 18:16:15,198 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 18:16:15,203 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 18:16:15,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 18:16:15,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 18:16:15,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 18:16:15,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 18:16:15,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 18:16:15,238 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 18:16:15,239 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 18:16:15,239 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 18:16:15,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 18:16:15,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 18:16:15,242 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 18:16:15,242 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 18:16:15,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 18:16:15,243 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 18:16:15,243 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 18:16:15,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 18:16:15,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 18:16:15,244 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 18:16:15,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 18:16:15,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 18:16:15,245 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 18:16:15,245 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 18:16:15,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 18:16:15,246 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 18:16:15,246 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 18:16:15,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 18:16:15,247 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 18:16:15,248 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 18:16:15,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:16:15,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 18:16:15,248 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 18:16:15,249 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 18:16:15,249 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 18:16:15,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 18:16:15,249 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 18:16:15,250 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 18:16:15,250 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 18:16:15,250 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 18:16:15,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 18:16:15,251 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 18:16:15,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 18:16:15,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 18:16:15,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 18:16:15,542 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 18:16:15,543 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 18:16:15,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/stateful01-1.yml/witness.yml [2024-06-20 18:16:15,658 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 18:16:15,659 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 18:16:15,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2024-06-20 18:16:16,803 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 18:16:16,987 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 18:16:16,987 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2024-06-20 18:16:17,000 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85f672fae/63700fc116544d3ab969b738e9d7d202/FLAGa8862c6b0 [2024-06-20 18:16:17,012 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85f672fae/63700fc116544d3ab969b738e9d7d202 [2024-06-20 18:16:17,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 18:16:17,014 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 18:16:17,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 18:16:17,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 18:16:17,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 18:16:17,021 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:16:15" (1/2) ... [2024-06-20 18:16:17,022 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bcceca9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:16:17, skipping insertion in model container [2024-06-20 18:16:17,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:16:15" (1/2) ... [2024-06-20 18:16:17,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5673204 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:16:17, skipping insertion in model container [2024-06-20 18:16:17,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:16:17" (2/2) ... [2024-06-20 18:16:17,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bcceca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17, skipping insertion in model container [2024-06-20 18:16:17,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:16:17" (2/2) ... [2024-06-20 18:16:17,026 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 18:16:17,068 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 18:16:17,069 INFO L97 edCorrectnessWitness]: Location invariant before [L723-L723] (! multithreaded || (ma_locked || (0 <= data1 && data1 != 0))) && (! multithreaded || ((0 <= data1 && 10 <= data1) && data1 != 0)) [2024-06-20 18:16:17,070 INFO L97 edCorrectnessWitness]: Location invariant before [L722-L722] (! multithreaded || (ma_locked || (0 <= data1 && data1 != 0))) && (! multithreaded || ((0 <= data1 && 10 <= data1) && data1 != 0)) [2024-06-20 18:16:17,070 INFO L103 edCorrectnessWitness]: ghost_variable ma_locked = 0 [2024-06-20 18:16:17,070 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 18:16:17,070 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] ma_locked = 0; [2024-06-20 18:16:17,070 INFO L106 edCorrectnessWitness]: ghost_update [L708-L708] ma_locked = 0; [2024-06-20 18:16:17,070 INFO L106 edCorrectnessWitness]: ghost_update [L706-L706] ma_locked = 1; [2024-06-20 18:16:17,071 INFO L106 edCorrectnessWitness]: ghost_update [L721-L721] multithreaded = 1; [2024-06-20 18:16:17,071 INFO L106 edCorrectnessWitness]: ghost_update [L709-L709] ma_locked = 1; [2024-06-20 18:16:17,071 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] ma_locked = 0; [2024-06-20 18:16:17,071 INFO L106 edCorrectnessWitness]: ghost_update [L711-L711] ma_locked = 0; [2024-06-20 18:16:17,071 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] ma_locked = 1; [2024-06-20 18:16:17,071 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] ma_locked = 1; [2024-06-20 18:16:17,116 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 18:16:17,439 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:16:17,452 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-20 18:16:17,566 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:16:17,646 INFO L206 MainTranslator]: Completed translation [2024-06-20 18:16:17,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17 WrapperNode [2024-06-20 18:16:17,646 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 18:16:17,647 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 18:16:17,647 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 18:16:17,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 18:16:17,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17" (1/1) ... [2024-06-20 18:16:17,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17" (1/1) ... [2024-06-20 18:16:17,686 INFO L138 Inliner]: procedures = 168, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2024-06-20 18:16:17,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 18:16:17,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 18:16:17,688 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 18:16:17,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 18:16:17,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17" (1/1) ... [2024-06-20 18:16:17,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17" (1/1) ... [2024-06-20 18:16:17,710 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17" (1/1) ... [2024-06-20 18:16:17,739 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-20 18:16:17,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17" (1/1) ... [2024-06-20 18:16:17,743 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17" (1/1) ... [2024-06-20 18:16:17,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17" (1/1) ... [2024-06-20 18:16:17,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17" (1/1) ... [2024-06-20 18:16:17,763 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17" (1/1) ... [2024-06-20 18:16:17,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17" (1/1) ... [2024-06-20 18:16:17,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 18:16:17,767 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 18:16:17,767 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 18:16:17,767 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 18:16:17,768 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17" (1/1) ... [2024-06-20 18:16:17,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:16:17,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:16:17,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-20 18:16:17,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-20 18:16:17,825 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-20 18:16:17,826 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-20 18:16:17,826 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-20 18:16:17,826 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-20 18:16:17,826 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-20 18:16:17,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 18:16:17,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 18:16:17,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 18:16:17,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-20 18:16:17,827 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-20 18:16:17,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 18:16:17,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 18:16:17,829 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-20 18:16:17,942 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 18:16:17,944 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 18:16:18,152 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 18:16:18,152 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 18:16:18,308 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 18:16:18,308 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-20 18:16:18,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:16:18 BoogieIcfgContainer [2024-06-20 18:16:18,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 18:16:18,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 18:16:18,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 18:16:18,316 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 18:16:18,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:16:15" (1/4) ... [2024-06-20 18:16:18,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7549570d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:16:18, skipping insertion in model container [2024-06-20 18:16:18,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 06:16:17" (2/4) ... [2024-06-20 18:16:18,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7549570d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:16:18, skipping insertion in model container [2024-06-20 18:16:18,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:16:17" (3/4) ... [2024-06-20 18:16:18,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7549570d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:16:18, skipping insertion in model container [2024-06-20 18:16:18,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:16:18" (4/4) ... [2024-06-20 18:16:18,321 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2024-06-20 18:16:18,337 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 18:16:18,337 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-20 18:16:18,337 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 18:16:18,385 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-20 18:16:18,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 33 transitions, 80 flow [2024-06-20 18:16:18,441 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-06-20 18:16:18,442 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-20 18:16:18,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 31 events. 0/31 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-20 18:16:18,444 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 33 transitions, 80 flow [2024-06-20 18:16:18,446 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 27 transitions, 60 flow [2024-06-20 18:16:18,454 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 18:16:18,469 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@a0b048d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 18:16:18,470 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-20 18:16:18,474 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 18:16:18,474 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-20 18:16:18,474 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:16:18,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:16:18,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-20 18:16:18,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-20 18:16:18,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:16:18,480 INFO L85 PathProgramCache]: Analyzing trace with hash 243726715, now seen corresponding path program 1 times [2024-06-20 18:16:18,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:16:18,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923467846] [2024-06-20 18:16:18,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:16:18,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:16:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:16:18,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:16:18,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:16:18,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923467846] [2024-06-20 18:16:18,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923467846] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:16:18,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:16:18,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-20 18:16:18,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909177496] [2024-06-20 18:16:18,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:16:18,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 18:16:18,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:16:18,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 18:16:18,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 18:16:18,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-06-20 18:16:18,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:16:18,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:16:18,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-06-20 18:16:18,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:16:19,047 INFO L124 PetriNetUnfolderBase]: 182/356 cut-off events. [2024-06-20 18:16:19,048 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-06-20 18:16:19,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 356 events. 182/356 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1335 event pairs, 182 based on Foata normal form. 64/416 useless extension candidates. Maximal degree in co-relation 702. Up to 335 conditions per place. [2024-06-20 18:16:19,053 INFO L140 encePairwiseOnDemand]: 30/33 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2024-06-20 18:16:19,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 96 flow [2024-06-20 18:16:19,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 18:16:19,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 18:16:19,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 46 transitions. [2024-06-20 18:16:19,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46464646464646464 [2024-06-20 18:16:19,066 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 60 flow. Second operand 3 states and 46 transitions. [2024-06-20 18:16:19,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 96 flow [2024-06-20 18:16:19,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 25 transitions, 94 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-20 18:16:19,069 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2024-06-20 18:16:19,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2024-06-20 18:16:19,074 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2024-06-20 18:16:19,074 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2024-06-20 18:16:19,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:16:19,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-06-20 18:16:19,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-06-20 18:16:19,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-20 18:16:19,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-20 18:16:19,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 18:16:19,079 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-06-20 18:16:19,085 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 18:16:19,086 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 18:16:19,111 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-20 18:16:19,111 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-20 18:16:19,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 06:16:19 BasicIcfg [2024-06-20 18:16:19,112 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 18:16:19,128 INFO L158 Benchmark]: Toolchain (without parser) took 2099.18ms. Allocated memory was 132.1MB in the beginning and 195.0MB in the end (delta: 62.9MB). Free memory was 72.1MB in the beginning and 156.5MB in the end (delta: -84.4MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2024-06-20 18:16:19,128 INFO L158 Benchmark]: Witness Parser took 0.92ms. Allocated memory is still 132.1MB. Free memory was 95.0MB in the beginning and 94.8MB in the end (delta: 169.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 18:16:19,129 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 132.1MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:16:19,129 INFO L158 Benchmark]: CACSL2BoogieTranslator took 631.64ms. Allocated memory was 132.1MB in the beginning and 195.0MB in the end (delta: 62.9MB). Free memory was 72.1MB in the beginning and 164.2MB in the end (delta: -92.1MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2024-06-20 18:16:19,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.15ms. Allocated memory is still 195.0MB. Free memory was 164.2MB in the beginning and 162.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:16:19,130 INFO L158 Benchmark]: Boogie Preprocessor took 78.79ms. Allocated memory is still 195.0MB. Free memory was 162.0MB in the beginning and 159.9MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-20 18:16:19,130 INFO L158 Benchmark]: RCFGBuilder took 543.09ms. Allocated memory is still 195.0MB. Free memory was 159.9MB in the beginning and 129.5MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-06-20 18:16:19,131 INFO L158 Benchmark]: TraceAbstraction took 799.72ms. Allocated memory is still 195.0MB. Free memory was 128.5MB in the beginning and 156.5MB in the end (delta: -28.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-06-20 18:16:19,135 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.92ms. Allocated memory is still 132.1MB. Free memory was 95.0MB in the beginning and 94.8MB in the end (delta: 169.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 132.1MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 631.64ms. Allocated memory was 132.1MB in the beginning and 195.0MB in the end (delta: 62.9MB). Free memory was 72.1MB in the beginning and 164.2MB in the end (delta: -92.1MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.15ms. Allocated memory is still 195.0MB. Free memory was 164.2MB in the beginning and 162.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 78.79ms. Allocated memory is still 195.0MB. Free memory was 162.0MB in the beginning and 159.9MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 543.09ms. Allocated memory is still 195.0MB. Free memory was 159.9MB in the beginning and 129.5MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 799.72ms. Allocated memory is still 195.0MB. Free memory was 128.5MB in the beginning and 156.5MB in the end (delta: -28.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 722]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 723]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 56 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 3 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-20 18:16:19,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE