./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-simple-queue.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-simple-queue.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f 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-simple-queue.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-simple-queue.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-bcb38a6-m [2024-06-03 21:03:07,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 21:03:07,194 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 21:03:07,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 21:03:07,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 21:03:07,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 21:03:07,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 21:03:07,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 21:03:07,232 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 21:03:07,236 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 21:03:07,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 21:03:07,237 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 21:03:07,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 21:03:07,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 21:03:07,239 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 21:03:07,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 21:03:07,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 21:03:07,240 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 21:03:07,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 21:03:07,241 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 21:03:07,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 21:03:07,242 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 21:03:07,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 21:03:07,242 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 21:03:07,242 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 21:03:07,243 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 21:03:07,243 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 21:03:07,243 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 21:03:07,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 21:03:07,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 21:03:07,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 21:03:07,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 21:03:07,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 21:03:07,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 21:03:07,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 21:03:07,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 21:03:07,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 21:03:07,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 21:03:07,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 21:03:07,247 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 21:03:07,247 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 21:03:07,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 21:03:07,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 21:03:07,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 21:03:07,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 21:03:07,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 21:03:07,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 21:03:07,497 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 21:03:07,497 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 21:03:07,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-simple-queue.wvr.yml/witness.yml [2024-06-03 21:03:07,556 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 21:03:07,559 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 21:03:07,559 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-simple-queue.wvr.c [2024-06-03 21:03:08,565 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 21:03:08,739 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 21:03:08,740 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-queue.wvr.c [2024-06-03 21:03:08,746 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/446955fa5/08a1bee31dc745cbb7b3cda3b39bf787/FLAG93fa3e537 [2024-06-03 21:03:08,756 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/446955fa5/08a1bee31dc745cbb7b3cda3b39bf787 [2024-06-03 21:03:08,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 21:03:08,758 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 21:03:08,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 21:03:08,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 21:03:08,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 21:03:08,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:03:07" (1/2) ... [2024-06-03 21:03:08,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@257b139e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:03:08, skipping insertion in model container [2024-06-03 21:03:08,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:03:07" (1/2) ... [2024-06-03 21:03:08,765 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5ad3fcf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:03:08, skipping insertion in model container [2024-06-03 21:03:08,765 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 09:03:08" (2/2) ... [2024-06-03 21:03:08,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@257b139e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:08, skipping insertion in model container [2024-06-03 21:03:08,767 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 09:03:08" (2/2) ... [2024-06-03 21:03:08,768 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 21:03:08,782 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 21:03:08,784 INFO L97 edCorrectnessWitness]: Location invariant before [L82-L82] ! multithreaded || (((4294967296LL + (long long )front) + (long long )n >= 0LL && (4294967296LL + (long long )back) + (long long )front >= 0LL) && (4294967295LL + (long long )front) - (long long )n >= 0LL) [2024-06-03 21:03:08,784 INFO L97 edCorrectnessWitness]: Location invariant before [L81-L81] ! multithreaded || (((4294967296LL + (long long )front) + (long long )n >= 0LL && (4294967296LL + (long long )back) + (long long )front >= 0LL) && (4294967295LL + (long long )front) - (long long )n >= 0LL) [2024-06-03 21:03:08,784 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 21:03:08,784 INFO L106 edCorrectnessWitness]: ghost_update [L80-L80] multithreaded = 1; [2024-06-03 21:03:08,799 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 21:03:08,958 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 21:03:08,967 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-03 21:03:09,032 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 21:03:09,049 INFO L206 MainTranslator]: Completed translation [2024-06-03 21:03:09,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:09 WrapperNode [2024-06-03 21:03:09,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 21:03:09,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 21:03:09,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 21:03:09,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 21:03:09,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:09" (1/1) ... [2024-06-03 21:03:09,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:09" (1/1) ... [2024-06-03 21:03:09,087 INFO L138 Inliner]: procedures = 23, calls = 24, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 130 [2024-06-03 21:03:09,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 21:03:09,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 21:03:09,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 21:03:09,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 21:03:09,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:09" (1/1) ... [2024-06-03 21:03:09,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:09" (1/1) ... [2024-06-03 21:03:09,108 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:09" (1/1) ... [2024-06-03 21:03:09,120 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-06-03 21:03:09,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:09" (1/1) ... [2024-06-03 21:03:09,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:09" (1/1) ... [2024-06-03 21:03:09,128 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:09" (1/1) ... [2024-06-03 21:03:09,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:09" (1/1) ... [2024-06-03 21:03:09,132 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:09" (1/1) ... [2024-06-03 21:03:09,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:09" (1/1) ... [2024-06-03 21:03:09,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 21:03:09,135 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 21:03:09,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 21:03:09,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 21:03:09,135 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:09" (1/1) ... [2024-06-03 21:03:09,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 21:03:09,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 21:03:09,167 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) [2024-06-03 21:03:09,171 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 [2024-06-03 21:03:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 21:03:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-03 21:03:09,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-03 21:03:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-03 21:03:09,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-03 21:03:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 21:03:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-03 21:03:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-03 21:03:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-03 21:03:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-03 21:03:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-03 21:03:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-03 21:03:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 21:03:09,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 21:03:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-03 21:03:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-03 21:03:09,246 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-03 21:03:09,313 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 21:03:09,314 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 21:03:09,503 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 21:03:09,503 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 21:03:09,636 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 21:03:09,648 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-06-03 21:03:09,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 09:03:09 BoogieIcfgContainer [2024-06-03 21:03:09,649 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 21:03:09,650 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 21:03:09,651 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 21:03:09,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 21:03:09,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:03:07" (1/4) ... [2024-06-03 21:03:09,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79ee08fb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 09:03:09, skipping insertion in model container [2024-06-03 21:03:09,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 09:03:08" (2/4) ... [2024-06-03 21:03:09,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79ee08fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 09:03:09, skipping insertion in model container [2024-06-03 21:03:09,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:03:09" (3/4) ... [2024-06-03 21:03:09,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79ee08fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 09:03:09, skipping insertion in model container [2024-06-03 21:03:09,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 09:03:09" (4/4) ... [2024-06-03 21:03:09,659 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-queue.wvr.c [2024-06-03 21:03:09,674 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 21:03:09,674 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-03 21:03:09,674 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 21:03:09,709 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-03 21:03:09,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 74 flow [2024-06-03 21:03:09,764 INFO L124 PetriNetUnfolderBase]: 5/28 cut-off events. [2024-06-03 21:03:09,766 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-03 21:03:09,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 28 events. 5/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2024-06-03 21:03:09,769 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 30 transitions, 74 flow [2024-06-03 21:03:09,771 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 26 transitions, 61 flow [2024-06-03 21:03:09,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 21:03:09,781 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;@21039f35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 21:03:09,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-03 21:03:09,785 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 21:03:09,788 INFO L124 PetriNetUnfolderBase]: 3/13 cut-off events. [2024-06-03 21:03:09,788 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 21:03:09,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:03:09,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:03:09,789 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)] === [2024-06-03 21:03:09,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:03:09,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1901801807, now seen corresponding path program 1 times [2024-06-03 21:03:09,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:03:09,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221934728] [2024-06-03 21:03:09,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:03:09,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:03:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:03:10,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:03:10,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:03:10,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221934728] [2024-06-03 21:03:10,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221934728] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:03:10,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:03:10,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-03 21:03:10,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561554922] [2024-06-03 21:03:10,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:03:10,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 21:03:10,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:03:10,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 21:03:10,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 21:03:10,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 30 [2024-06-03 21:03:10,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-06-03 21:03:10,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:03:10,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 30 [2024-06-03 21:03:10,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:03:10,204 INFO L124 PetriNetUnfolderBase]: 97/176 cut-off events. [2024-06-03 21:03:10,205 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-06-03 21:03:10,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 176 events. 97/176 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 502 event pairs, 72 based on Foata normal form. 25/175 useless extension candidates. Maximal degree in co-relation 325. Up to 171 conditions per place. [2024-06-03 21:03:10,207 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2024-06-03 21:03:10,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 22 transitions, 95 flow [2024-06-03 21:03:10,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 21:03:10,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 21:03:10,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2024-06-03 21:03:10,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37777777777777777 [2024-06-03 21:03:10,218 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 61 flow. Second operand 3 states and 34 transitions. [2024-06-03 21:03:10,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 22 transitions, 95 flow [2024-06-03 21:03:10,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 22 transitions, 90 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-03 21:03:10,221 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2024-06-03 21:03:10,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2024-06-03 21:03:10,225 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -3 predicate places. [2024-06-03 21:03:10,225 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2024-06-03 21:03:10,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-06-03 21:03:10,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-06-03 21:03:10,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-06-03 21:03:10,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-03 21:03:10,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-03 21:03:10,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 21:03:10,228 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-06-03 21:03:10,233 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-03 21:03:10,233 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-03 21:03:10,238 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-03 21:03:10,238 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-03 21:03:10,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.06 09:03:10 BasicIcfg [2024-06-03 21:03:10,238 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-03 21:03:10,239 INFO L158 Benchmark]: Toolchain (without parser) took 1481.38ms. Allocated memory is still 192.9MB. Free memory was 114.1MB in the beginning and 86.6MB in the end (delta: 27.6MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2024-06-03 21:03:10,241 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 192.9MB. Free memory is still 162.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 21:03:10,243 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 159.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 21:03:10,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.22ms. Allocated memory is still 192.9MB. Free memory was 113.8MB in the beginning and 99.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-03 21:03:10,244 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.82ms. Allocated memory is still 192.9MB. Free memory was 99.3MB in the beginning and 97.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 21:03:10,245 INFO L158 Benchmark]: Boogie Preprocessor took 46.27ms. Allocated memory is still 192.9MB. Free memory was 97.4MB in the beginning and 95.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 21:03:10,249 INFO L158 Benchmark]: RCFGBuilder took 514.06ms. Allocated memory is still 192.9MB. Free memory was 95.1MB in the beginning and 129.7MB in the end (delta: -34.6MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2024-06-03 21:03:10,249 INFO L158 Benchmark]: TraceAbstraction took 588.60ms. Allocated memory is still 192.9MB. Free memory was 128.5MB in the beginning and 86.6MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-06-03 21:03:10,250 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 0.17ms. Allocated memory is still 192.9MB. Free memory is still 162.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 159.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.22ms. Allocated memory is still 192.9MB. Free memory was 113.8MB in the beginning and 99.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.82ms. Allocated memory is still 192.9MB. Free memory was 99.3MB in the beginning and 97.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.27ms. Allocated memory is still 192.9MB. Free memory was 97.4MB in the beginning and 95.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 514.06ms. Allocated memory is still 192.9MB. Free memory was 95.1MB in the beginning and 129.7MB in the end (delta: -34.6MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * TraceAbstraction took 588.60ms. Allocated memory is still 192.9MB. Free memory was 128.5MB in the beginning and 86.6MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 81]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 82]: 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, 38 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 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=61occurred 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, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 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! [2024-06-03 21:03:10,269 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