./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/protection/popl20-threaded-sum-3.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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/weaver/popl20-threaded-sum-3.wvr.c ./goblint.2024-06-19_11-23-25.files/protection/popl20-threaded-sum-3.wvr.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-7724a2d-m [2024-06-27 19:43:09,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 19:43:09,585 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 19:43:09,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 19:43:09,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 19:43:09,625 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 19:43:09,625 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 19:43:09,626 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 19:43:09,626 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 19:43:09,630 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 19:43:09,630 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 19:43:09,631 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 19:43:09,632 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 19:43:09,633 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 19:43:09,633 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 19:43:09,633 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 19:43:09,634 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 19:43:09,634 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 19:43:09,634 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 19:43:09,634 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 19:43:09,635 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 19:43:09,635 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 19:43:09,635 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 19:43:09,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 19:43:09,636 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 19:43:09,636 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 19:43:09,636 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 19:43:09,637 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 19:43:09,637 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 19:43:09,637 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 19:43:09,638 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 19:43:09,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 19:43:09,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:43:09,639 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 19:43:09,639 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 19:43:09,640 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 19:43:09,640 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 19:43:09,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 19:43:09,640 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 19:43:09,640 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 19:43:09,641 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 19:43:09,641 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 19:43:09,641 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 19:43:09,641 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 19:43:09,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 19:43:09,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 19:43:09,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 19:43:09,874 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 19:43:09,875 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 19:43:09,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/popl20-threaded-sum-3.wvr.yml/witness.yml [2024-06-27 19:43:09,946 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 19:43:09,946 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 19:43:09,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2024-06-27 19:43:11,029 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 19:43:11,243 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 19:43:11,243 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2024-06-27 19:43:11,249 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc754747d/72c9033019df4ee4a5ae90290598d115/FLAG9ec29f7d5 [2024-06-27 19:43:11,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc754747d/72c9033019df4ee4a5ae90290598d115 [2024-06-27 19:43:11,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 19:43:11,262 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 19:43:11,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 19:43:11,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 19:43:11,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 19:43:11,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:43:09" (1/2) ... [2024-06-27 19:43:11,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5bc865 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:11, skipping insertion in model container [2024-06-27 19:43:11,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:43:09" (1/2) ... [2024-06-27 19:43:11,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@775bcff8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:11, skipping insertion in model container [2024-06-27 19:43:11,276 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:43:11" (2/2) ... [2024-06-27 19:43:11,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5bc865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11, skipping insertion in model container [2024-06-27 19:43:11,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:43:11" (2/2) ... [2024-06-27 19:43:11,278 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 19:43:11,294 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 19:43:11,295 INFO L97 edCorrectnessWitness]: Location invariant before [L113-L113] ! multithreaded || c == 0U [2024-06-27 19:43:11,295 INFO L97 edCorrectnessWitness]: Location invariant before [L111-L111] ! multithreaded || c == 0U [2024-06-27 19:43:11,295 INFO L97 edCorrectnessWitness]: Location invariant before [L112-L112] ! multithreaded || c == 0U [2024-06-27 19:43:11,295 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 19:43:11,296 INFO L106 edCorrectnessWitness]: ghost_update [L110-L110] multithreaded = 1; [2024-06-27 19:43:11,316 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 19:43:11,475 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:43:11,483 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 19:43:11,531 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:43:11,547 INFO L206 MainTranslator]: Completed translation [2024-06-27 19:43:11,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11 WrapperNode [2024-06-27 19:43:11,547 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 19:43:11,548 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 19:43:11,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 19:43:11,549 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 19:43:11,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11" (1/1) ... [2024-06-27 19:43:11,562 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11" (1/1) ... [2024-06-27 19:43:11,593 INFO L138 Inliner]: procedures = 21, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-06-27 19:43:11,593 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 19:43:11,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 19:43:11,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 19:43:11,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 19:43:11,605 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11" (1/1) ... [2024-06-27 19:43:11,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11" (1/1) ... [2024-06-27 19:43:11,620 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11" (1/1) ... [2024-06-27 19:43:11,643 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-27 19:43:11,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11" (1/1) ... [2024-06-27 19:43:11,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11" (1/1) ... [2024-06-27 19:43:11,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11" (1/1) ... [2024-06-27 19:43:11,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11" (1/1) ... [2024-06-27 19:43:11,668 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11" (1/1) ... [2024-06-27 19:43:11,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11" (1/1) ... [2024-06-27 19:43:11,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 19:43:11,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 19:43:11,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 19:43:11,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 19:43:11,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11" (1/1) ... [2024-06-27 19:43:11,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:43:11,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:43:11,722 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) [2024-06-27 19:43:11,745 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 [2024-06-27 19:43:11,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 19:43:11,769 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-27 19:43:11,769 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-27 19:43:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-27 19:43:11,770 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-27 19:43:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-27 19:43:11,770 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-27 19:43:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 19:43:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 19:43:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 19:43:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 19:43:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 19:43:11,773 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 19:43:11,895 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 19:43:11,898 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 19:43:12,143 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 19:43:12,144 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 19:43:12,336 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 19:43:12,336 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-06-27 19:43:12,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:43:12 BoogieIcfgContainer [2024-06-27 19:43:12,337 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 19:43:12,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 19:43:12,339 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 19:43:12,343 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 19:43:12,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:43:09" (1/4) ... [2024-06-27 19:43:12,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc0bf1c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:43:12, skipping insertion in model container [2024-06-27 19:43:12,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 07:43:11" (2/4) ... [2024-06-27 19:43:12,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc0bf1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:43:12, skipping insertion in model container [2024-06-27 19:43:12,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:11" (3/4) ... [2024-06-27 19:43:12,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc0bf1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:43:12, skipping insertion in model container [2024-06-27 19:43:12,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:43:12" (4/4) ... [2024-06-27 19:43:12,349 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-threaded-sum-3.wvr.c [2024-06-27 19:43:12,366 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 19:43:12,366 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-27 19:43:12,366 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 19:43:12,412 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-27 19:43:12,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 40 transitions, 101 flow [2024-06-27 19:43:12,529 INFO L124 PetriNetUnfolderBase]: 3/37 cut-off events. [2024-06-27 19:43:12,533 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-27 19:43:12,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 37 events. 3/37 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2024-06-27 19:43:12,580 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 40 transitions, 101 flow [2024-06-27 19:43:12,582 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 35 transitions, 85 flow [2024-06-27 19:43:12,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 19:43:12,596 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;@531da258, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 19:43:12,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-27 19:43:12,601 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 19:43:12,601 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-27 19:43:12,601 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:43:12,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:43:12,602 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 19:43:12,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:43:12,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:43:12,607 INFO L85 PathProgramCache]: Analyzing trace with hash 328482504, now seen corresponding path program 1 times [2024-06-27 19:43:12,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:43:12,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211600357] [2024-06-27 19:43:12,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:12,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:43:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:12,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:43:12,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:43:12,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211600357] [2024-06-27 19:43:12,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211600357] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:43:12,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:43:12,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 19:43:12,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222853028] [2024-06-27 19:43:12,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:43:12,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:43:12,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:43:13,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:43:13,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:43:13,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 40 [2024-06-27 19:43:13,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-06-27 19:43:13,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:43:13,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 40 [2024-06-27 19:43:13,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:43:13,192 INFO L124 PetriNetUnfolderBase]: 216/432 cut-off events. [2024-06-27 19:43:13,193 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-06-27 19:43:13,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 807 conditions, 432 events. 216/432 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2383 event pairs, 177 based on Foata normal form. 36/429 useless extension candidates. Maximal degree in co-relation 685. Up to 328 conditions per place. [2024-06-27 19:43:13,198 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2024-06-27 19:43:13,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 32 transitions, 115 flow [2024-06-27 19:43:13,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:43:13,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:43:13,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-06-27 19:43:13,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-06-27 19:43:13,212 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 85 flow. Second operand 3 states and 72 transitions. [2024-06-27 19:43:13,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 32 transitions, 115 flow [2024-06-27 19:43:13,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 32 transitions, 106 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-27 19:43:13,218 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2024-06-27 19:43:13,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2024-06-27 19:43:13,224 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -6 predicate places. [2024-06-27 19:43:13,225 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2024-06-27 19:43:13,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-06-27 19:43:13,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-27 19:43:13,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-27 19:43:13,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-27 19:43:13,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-27 19:43:13,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-27 19:43:13,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-27 19:43:13,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 19:43:13,230 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-06-27 19:43:13,235 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 19:43:13,235 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 19:43:13,245 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-27 19:43:13,245 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-27 19:43:13,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 07:43:13 BasicIcfg [2024-06-27 19:43:13,248 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 19:43:13,250 INFO L158 Benchmark]: Toolchain (without parser) took 1986.54ms. Allocated memory is still 165.7MB. Free memory was 105.7MB in the beginning and 90.8MB in the end (delta: 14.9MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-06-27 19:43:13,251 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 165.7MB. Free memory is still 129.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:43:13,251 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:43:13,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.51ms. Allocated memory is still 165.7MB. Free memory was 105.0MB in the beginning and 90.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-27 19:43:13,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.81ms. Allocated memory is still 165.7MB. Free memory was 90.2MB in the beginning and 88.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:43:13,254 INFO L158 Benchmark]: Boogie Preprocessor took 82.77ms. Allocated memory is still 165.7MB. Free memory was 88.9MB in the beginning and 86.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-27 19:43:13,256 INFO L158 Benchmark]: RCFGBuilder took 658.91ms. Allocated memory is still 165.7MB. Free memory was 86.1MB in the beginning and 54.6MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-06-27 19:43:13,257 INFO L158 Benchmark]: TraceAbstraction took 909.47ms. Allocated memory is still 165.7MB. Free memory was 53.9MB in the beginning and 90.8MB in the end (delta: -36.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:43:13,263 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 0.19ms. Allocated memory is still 165.7MB. Free memory is still 129.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.51ms. Allocated memory is still 165.7MB. Free memory was 105.0MB in the beginning and 90.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.81ms. Allocated memory is still 165.7MB. Free memory was 90.2MB in the beginning and 88.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 82.77ms. Allocated memory is still 165.7MB. Free memory was 88.9MB in the beginning and 86.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 658.91ms. Allocated memory is still 165.7MB. Free memory was 86.1MB in the beginning and 54.6MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 909.47ms. Allocated memory is still 165.7MB. Free memory was 53.9MB in the beginning and 90.8MB in the end (delta: -36.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 111]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 112]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 113]: 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 7 procedures, 60 locations, 6 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: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 4 mSDtfsCounter, 23 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=85occurred 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, 44 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 19:43:13,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE