./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stack_longest-2.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/protection/stack_longest-2.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/pthread/stack_longest-2.i ./goblint.2024-05-21_14-57-05.files/protection/stack_longest-2.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 18:35:56,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 18:35:56,969 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 18:35:56,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 18:35:56,974 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 18:35:57,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 18:35:57,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 18:35:57,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 18:35:57,006 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 18:35:57,010 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 18:35:57,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 18:35:57,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 18:35:57,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 18:35:57,013 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 18:35:57,013 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 18:35:57,013 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 18:35:57,014 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 18:35:57,014 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 18:35:57,014 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 18:35:57,014 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 18:35:57,015 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 18:35:57,015 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 18:35:57,015 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 18:35:57,016 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 18:35:57,016 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 18:35:57,016 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 18:35:57,016 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 18:35:57,017 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 18:35:57,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 18:35:57,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 18:35:57,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 18:35:57,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 18:35:57,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 18:35:57,019 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 18:35:57,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 18:35:57,020 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 18:35:57,020 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 18:35:57,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 18:35:57,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 18:35:57,021 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 18:35:57,021 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 18:35:57,021 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 18:35:57,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 18:35:57,022 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 18:35:57,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 18:35:57,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 18:35:57,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 18:35:57,296 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 18:35:57,297 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 18:35:57,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/stack_longest-2.yml/witness.yml [2024-06-03 18:35:57,421 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 18:35:57,422 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 18:35:57,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-2.i [2024-06-03 18:35:58,583 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 18:35:58,859 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 18:35:58,860 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-2.i [2024-06-03 18:35:58,889 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0e7245c5/2933e479dac54b07afa15244039112e2/FLAGda5078dd8 [2024-06-03 18:35:58,900 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0e7245c5/2933e479dac54b07afa15244039112e2 [2024-06-03 18:35:58,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 18:35:58,902 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 18:35:58,903 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 18:35:58,903 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 18:35:58,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 18:35:58,908 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 06:35:57" (1/2) ... [2024-06-03 18:35:58,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7e71b5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 06:35:58, skipping insertion in model container [2024-06-03 18:35:58,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 06:35:57" (1/2) ... [2024-06-03 18:35:58,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@35f3ddf1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 06:35:58, skipping insertion in model container [2024-06-03 18:35:58,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 06:35:58" (2/2) ... [2024-06-03 18:35:58,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7e71b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:58, skipping insertion in model container [2024-06-03 18:35:58,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 06:35:58" (2/2) ... [2024-06-03 18:35:58,912 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 18:35:58,961 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 18:35:58,963 INFO L97 edCorrectnessWitness]: Location invariant before [L1023-L1023] ! multithreaded || flag == (_Bool)0 [2024-06-03 18:35:58,963 INFO L97 edCorrectnessWitness]: Location invariant before [L1022-L1022] ! multithreaded || flag == (_Bool)0 [2024-06-03 18:35:58,963 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 18:35:58,963 INFO L103 edCorrectnessWitness]: ghost_variable m_locked = 0 [2024-06-03 18:35:58,963 INFO L106 edCorrectnessWitness]: ghost_update [L993-L993] m_locked = 1; [2024-06-03 18:35:58,963 INFO L106 edCorrectnessWitness]: ghost_update [L1013-L1013] m_locked = 0; [2024-06-03 18:35:58,964 INFO L106 edCorrectnessWitness]: ghost_update [L1007-L1007] m_locked = 1; [2024-06-03 18:35:58,964 INFO L106 edCorrectnessWitness]: ghost_update [L1021-L1021] multithreaded = 1; [2024-06-03 18:35:58,964 INFO L106 edCorrectnessWitness]: ghost_update [L998-L998] m_locked = 0; [2024-06-03 18:35:59,085 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 18:35:59,485 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 18:35:59,501 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 [2024-06-03 18:35:59,584 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 18:35:59,649 INFO L206 MainTranslator]: Completed translation [2024-06-03 18:35:59,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:59 WrapperNode [2024-06-03 18:35:59,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 18:35:59,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 18:35:59,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 18:35:59,650 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 18:35:59,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:59" (1/1) ... [2024-06-03 18:35:59,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:59" (1/1) ... [2024-06-03 18:35:59,694 INFO L138 Inliner]: procedures = 277, calls = 31, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 160 [2024-06-03 18:35:59,694 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 18:35:59,695 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 18:35:59,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 18:35:59,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 18:35:59,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:59" (1/1) ... [2024-06-03 18:35:59,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:59" (1/1) ... [2024-06-03 18:35:59,708 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:59" (1/1) ... [2024-06-03 18:35:59,732 INFO L175 MemorySlicer]: Split 10 memory accesses to 3 slices as follows [2, 5, 3]. 50 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 2 writes are split as follows [0, 0, 2]. [2024-06-03 18:35:59,732 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:59" (1/1) ... [2024-06-03 18:35:59,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:59" (1/1) ... [2024-06-03 18:35:59,739 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:59" (1/1) ... [2024-06-03 18:35:59,749 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:59" (1/1) ... [2024-06-03 18:35:59,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:59" (1/1) ... [2024-06-03 18:35:59,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:59" (1/1) ... [2024-06-03 18:35:59,755 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 18:35:59,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 18:35:59,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 18:35:59,756 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 18:35:59,760 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:59" (1/1) ... [2024-06-03 18:35:59,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 18:35:59,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 18:35:59,793 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 18:35:59,820 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 18:35:59,846 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-06-03 18:35:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-06-03 18:35:59,847 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-06-03 18:35:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-06-03 18:35:59,847 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-03 18:35:59,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-03 18:35:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-03 18:35:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-06-03 18:35:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-03 18:35:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-03 18:35:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-06-03 18:35:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-03 18:35:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 18:35:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 18:35:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-03 18:35:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-03 18:35:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 18:35:59,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 18:35:59,854 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 18:35:59,984 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 18:35:59,985 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 18:36:00,235 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 18:36:00,236 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 18:36:00,447 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 18:36:00,447 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-06-03 18:36:00,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 06:36:00 BoogieIcfgContainer [2024-06-03 18:36:00,448 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 18:36:00,449 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 18:36:00,450 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 18:36:00,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 18:36:00,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 06:35:57" (1/4) ... [2024-06-03 18:36:00,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4460944a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 06:36:00, skipping insertion in model container [2024-06-03 18:36:00,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 06:35:58" (2/4) ... [2024-06-03 18:36:00,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4460944a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 06:36:00, skipping insertion in model container [2024-06-03 18:36:00,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 06:35:59" (3/4) ... [2024-06-03 18:36:00,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4460944a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 06:36:00, skipping insertion in model container [2024-06-03 18:36:00,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 06:36:00" (4/4) ... [2024-06-03 18:36:00,456 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longest-2.i [2024-06-03 18:36:00,472 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 18:36:00,472 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-03 18:36:00,472 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 18:36:00,519 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-03 18:36:00,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 30 transitions, 74 flow [2024-06-03 18:36:00,622 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2024-06-03 18:36:00,622 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-03 18:36:00,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 28 events. 2/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2024-06-03 18:36:00,627 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 30 transitions, 74 flow [2024-06-03 18:36:00,631 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 26 transitions, 61 flow [2024-06-03 18:36:00,646 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 18:36:00,655 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;@2dff0079, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 18:36:00,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-03 18:36:00,665 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 18:36:00,666 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-06-03 18:36:00,666 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 18:36:00,666 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 18:36:00,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-03 18:36:00,668 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 18:36:00,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 18:36:00,673 INFO L85 PathProgramCache]: Analyzing trace with hash -28591471, now seen corresponding path program 1 times [2024-06-03 18:36:00,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 18:36:00,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826897120] [2024-06-03 18:36:00,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 18:36:00,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 18:36:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 18:36:01,007 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 18:36:01,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 18:36:01,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826897120] [2024-06-03 18:36:01,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826897120] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 18:36:01,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 18:36:01,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-03 18:36:01,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222370608] [2024-06-03 18:36:01,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 18:36:01,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 18:36:01,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 18:36:01,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 18:36:01,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 18:36:01,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 30 [2024-06-03 18:36:01,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 18:36:01,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 18:36:01,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 30 [2024-06-03 18:36:01,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 18:36:01,203 INFO L124 PetriNetUnfolderBase]: 133/253 cut-off events. [2024-06-03 18:36:01,204 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-06-03 18:36:01,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 253 events. 133/253 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 924 event pairs, 105 based on Foata normal form. 36/281 useless extension candidates. Maximal degree in co-relation 465. Up to 232 conditions per place. [2024-06-03 18:36:01,207 INFO L140 encePairwiseOnDemand]: 27/30 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2024-06-03 18:36:01,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 99 flow [2024-06-03 18:36:01,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 18:36:01,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 18:36:01,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2024-06-03 18:36:01,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4222222222222222 [2024-06-03 18:36:01,219 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 61 flow. Second operand 3 states and 38 transitions. [2024-06-03 18:36:01,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 99 flow [2024-06-03 18:36:01,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 24 transitions, 94 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-03 18:36:01,223 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2024-06-03 18:36:01,225 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2024-06-03 18:36:01,228 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2024-06-03 18:36:01,228 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2024-06-03 18:36:01,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 18:36:01,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-06-03 18:36:01,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-06-03 18:36:01,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-03 18:36:01,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-03 18:36:01,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 18:36:01,232 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-06-03 18:36:01,235 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-03 18:36:01,236 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-03 18:36:01,243 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-03 18:36:01,244 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-03 18:36:01,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.06 06:36:01 BasicIcfg [2024-06-03 18:36:01,245 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-03 18:36:01,246 INFO L158 Benchmark]: Toolchain (without parser) took 2343.86ms. Allocated memory is still 172.0MB. Free memory was 98.4MB in the beginning and 98.6MB in the end (delta: -193.6kB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. [2024-06-03 18:36:01,247 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 18:36:01,247 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 172.0MB. Free memory was 146.1MB in the beginning and 146.0MB in the end (delta: 181.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 18:36:01,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 746.84ms. Allocated memory is still 172.0MB. Free memory was 98.3MB in the beginning and 112.4MB in the end (delta: -14.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-06-03 18:36:01,248 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.35ms. Allocated memory is still 172.0MB. Free memory was 112.4MB in the beginning and 109.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-03 18:36:01,251 INFO L158 Benchmark]: Boogie Preprocessor took 60.36ms. Allocated memory is still 172.0MB. Free memory was 109.0MB in the beginning and 106.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 18:36:01,251 INFO L158 Benchmark]: RCFGBuilder took 691.64ms. Allocated memory is still 172.0MB. Free memory was 106.9MB in the beginning and 60.8MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-06-03 18:36:01,252 INFO L158 Benchmark]: TraceAbstraction took 795.68ms. Allocated memory is still 172.0MB. Free memory was 60.8MB in the beginning and 98.6MB in the end (delta: -37.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 18:36:01,259 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 0.18ms. Allocated memory is still 113.2MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 172.0MB. Free memory was 146.1MB in the beginning and 146.0MB in the end (delta: 181.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 746.84ms. Allocated memory is still 172.0MB. Free memory was 98.3MB in the beginning and 112.4MB in the end (delta: -14.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.35ms. Allocated memory is still 172.0MB. Free memory was 112.4MB in the beginning and 109.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.36ms. Allocated memory is still 172.0MB. Free memory was 109.0MB in the beginning and 106.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 691.64ms. Allocated memory is still 172.0MB. Free memory was 106.9MB in the beginning and 60.8MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 795.68ms. Allocated memory is still 172.0MB. Free memory was 60.8MB in the beginning and 98.6MB in the end (delta: -37.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1022]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1023]: 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, 45 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: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 25 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, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 18:36:01,291 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