./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.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/time_var_mutex.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-atomic/time_var_mutex.i ./goblint.2024-05-21_14-57-05.files/protection/time_var_mutex.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 [2024-06-04 14:05:41,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-04 14:05:41,720 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-04 14:05:41,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-04 14:05:41,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-04 14:05:41,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-04 14:05:41,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-04 14:05:41,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-04 14:05:41,740 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-04 14:05:41,740 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-04 14:05:41,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-04 14:05:41,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-04 14:05:41,741 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-04 14:05:41,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-04 14:05:41,742 INFO L153 SettingsManager]: * Use SBE=true [2024-06-04 14:05:41,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-04 14:05:41,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-04 14:05:41,743 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-04 14:05:41,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-04 14:05:41,743 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-04 14:05:41,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-04 14:05:41,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-04 14:05:41,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-04 14:05:41,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-04 14:05:41,745 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-04 14:05:41,745 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-04 14:05:41,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-04 14:05:41,746 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-04 14:05:41,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-04 14:05:41,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-04 14:05:41,747 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-04 14:05:41,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-04 14:05:41,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 14:05:41,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-04 14:05:41,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-04 14:05:41,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-04 14:05:41,748 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-04 14:05:41,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-04 14:05:41,749 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-04 14:05:41,749 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-04 14:05:41,750 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-04 14:05:41,750 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-04 14:05:41,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-04 14:05:41,751 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-04 14:05:41,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-04 14:05:41,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-04 14:05:41,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-04 14:05:41,987 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-04 14:05:41,987 INFO L274 PluginConnector]: CDTParser initialized [2024-06-04 14:05:41,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2024-06-04 14:05:42,973 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-04 14:05:43,167 INFO L384 CDTParser]: Found 1 translation units. [2024-06-04 14:05:43,167 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2024-06-04 14:05:43,179 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5789067f7/e1dae3af6efa4c60ac2f6eab80a26f58/FLAGb255503fe [2024-06-04 14:05:43,205 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5789067f7/e1dae3af6efa4c60ac2f6eab80a26f58 [2024-06-04 14:05:43,207 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-04 14:05:43,211 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-04 14:05:43,213 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/time_var_mutex.yml/witness.yml [2024-06-04 14:05:43,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-04 14:05:43,311 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-04 14:05:43,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-04 14:05:43,312 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-04 14:05:43,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-04 14:05:43,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 02:05:43" (1/2) ... [2024-06-04 14:05:43,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5861ebf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 02:05:43, skipping insertion in model container [2024-06-04 14:05:43,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 02:05:43" (1/2) ... [2024-06-04 14:05:43,319 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6c14b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 02:05:43, skipping insertion in model container [2024-06-04 14:05:43,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 02:05:43" (2/2) ... [2024-06-04 14:05:43,319 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5861ebf9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43, skipping insertion in model container [2024-06-04 14:05:43,319 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 02:05:43" (2/2) ... [2024-06-04 14:05:43,320 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-04 14:05:43,343 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-04 14:05:43,344 INFO L97 edCorrectnessWitness]: Location invariant before [L721-L721] ((! multithreaded || ((0 <= busy && busy <= 1) && (busy == 0 || busy == 1))) && (! multithreaded || ((0 <= inode && inode <= 1) && (inode == 0 || inode == 1)))) && (! multithreaded || ((0 <= block && block <= 1) && (block == 0 || block == 1))) [2024-06-04 14:05:43,345 INFO L97 edCorrectnessWitness]: Location invariant before [L722-L722] ((! multithreaded || ((0 <= busy && busy <= 1) && (busy == 0 || busy == 1))) && (! multithreaded || ((0 <= inode && inode <= 1) && (inode == 0 || inode == 1)))) && (! multithreaded || ((0 <= block && block <= 1) && (block == 0 || block == 1))) [2024-06-04 14:05:43,345 INFO L103 edCorrectnessWitness]: ghost_variable m_busy_locked = 0 [2024-06-04 14:05:43,345 INFO L103 edCorrectnessWitness]: ghost_variable m_inode_locked = 0 [2024-06-04 14:05:43,345 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-04 14:05:43,345 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] m_busy_locked = 1; [2024-06-04 14:05:43,345 INFO L106 edCorrectnessWitness]: ghost_update [L712-L712] m_busy_locked = 0; [2024-06-04 14:05:43,345 INFO L106 edCorrectnessWitness]: ghost_update [L694-L694] m_inode_locked = 1; [2024-06-04 14:05:43,346 INFO L106 edCorrectnessWitness]: ghost_update [L703-L703] m_inode_locked = 0; [2024-06-04 14:05:43,346 INFO L106 edCorrectnessWitness]: ghost_update [L720-L720] multithreaded = 1; [2024-06-04 14:05:43,346 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] m_busy_locked = 0; [2024-06-04 14:05:43,346 INFO L106 edCorrectnessWitness]: ghost_update [L707-L707] m_busy_locked = 1; [2024-06-04 14:05:43,377 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-04 14:05:43,654 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 14:05:43,665 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-04 14:05:43,747 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 14:05:43,779 INFO L206 MainTranslator]: Completed translation [2024-06-04 14:05:43,779 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43 WrapperNode [2024-06-04 14:05:43,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-04 14:05:43,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-04 14:05:43,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-04 14:05:43,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-04 14:05:43,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43" (1/1) ... [2024-06-04 14:05:43,810 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43" (1/1) ... [2024-06-04 14:05:43,836 INFO L138 Inliner]: procedures = 169, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 104 [2024-06-04 14:05:43,836 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-04 14:05:43,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-04 14:05:43,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-04 14:05:43,837 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-04 14:05:43,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43" (1/1) ... [2024-06-04 14:05:43,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43" (1/1) ... [2024-06-04 14:05:43,853 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43" (1/1) ... [2024-06-04 14:05:43,878 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-04 14:05:43,878 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43" (1/1) ... [2024-06-04 14:05:43,878 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43" (1/1) ... [2024-06-04 14:05:43,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43" (1/1) ... [2024-06-04 14:05:43,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43" (1/1) ... [2024-06-04 14:05:43,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43" (1/1) ... [2024-06-04 14:05:43,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43" (1/1) ... [2024-06-04 14:05:43,894 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-04 14:05:43,902 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-04 14:05:43,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-04 14:05:43,903 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-04 14:05:43,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43" (1/1) ... [2024-06-04 14:05:43,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 14:05:43,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-04 14:05:43,929 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) [2024-06-04 14:05:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2024-06-04 14:05:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2024-06-04 14:05:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2024-06-04 14:05:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2024-06-04 14:05:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-04 14:05:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-04 14:05:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-04 14:05:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-04 14:05:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-04 14:05:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-04 14:05:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-04 14:05:43,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-04 14:05:43,966 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-04 14:05:43,952 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 [2024-06-04 14:05:44,094 INFO L244 CfgBuilder]: Building ICFG [2024-06-04 14:05:44,095 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-04 14:05:44,240 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-04 14:05:44,240 INFO L293 CfgBuilder]: Performing block encoding [2024-06-04 14:05:44,355 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-04 14:05:44,355 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-04 14:05:44,356 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 02:05:44 BoogieIcfgContainer [2024-06-04 14:05:44,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-04 14:05:44,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-04 14:05:44,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-04 14:05:44,360 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-04 14:05:44,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.06 02:05:43" (1/4) ... [2024-06-04 14:05:44,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ed84c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 02:05:44, skipping insertion in model container [2024-06-04 14:05:44,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 02:05:43" (2/4) ... [2024-06-04 14:05:44,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ed84c3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 02:05:44, skipping insertion in model container [2024-06-04 14:05:44,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 02:05:43" (3/4) ... [2024-06-04 14:05:44,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ed84c3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 02:05:44, skipping insertion in model container [2024-06-04 14:05:44,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 02:05:44" (4/4) ... [2024-06-04 14:05:44,362 INFO L112 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2024-06-04 14:05:44,374 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-04 14:05:44,374 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-04 14:05:44,375 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-04 14:05:44,416 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-04 14:05:44,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 33 transitions, 80 flow [2024-06-04 14:05:44,475 INFO L124 PetriNetUnfolderBase]: 1/31 cut-off events. [2024-06-04 14:05:44,475 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-04 14:05:44,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 31 events. 1/31 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 52 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2024-06-04 14:05:44,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 33 transitions, 80 flow [2024-06-04 14:05:44,487 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 28 transitions, 62 flow [2024-06-04 14:05:44,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-04 14:05:44,501 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;@5a0204f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-04 14:05:44,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-04 14:05:44,504 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-04 14:05:44,504 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-06-04 14:05:44,504 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 14:05:44,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 14:05:44,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-04 14:05:44,505 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)] === [2024-06-04 14:05:44,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 14:05:44,509 INFO L85 PathProgramCache]: Analyzing trace with hash 48842631, now seen corresponding path program 1 times [2024-06-04 14:05:44,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 14:05:44,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072233264] [2024-06-04 14:05:44,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 14:05:44,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 14:05:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 14:05:44,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 14:05:44,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 14:05:44,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072233264] [2024-06-04 14:05:44,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072233264] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 14:05:44,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 14:05:44,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-04 14:05:44,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818122884] [2024-06-04 14:05:44,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 14:05:44,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-04 14:05:44,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 14:05:44,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-04 14:05:44,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-04 14:05:44,932 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 33 [2024-06-04 14:05:44,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-06-04 14:05:44,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 14:05:44,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 33 [2024-06-04 14:05:44,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 14:05:45,053 INFO L124 PetriNetUnfolderBase]: 186/354 cut-off events. [2024-06-04 14:05:45,054 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-04 14:05:45,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 354 events. 186/354 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1341 event pairs, 66 based on Foata normal form. 27/370 useless extension candidates. Maximal degree in co-relation 706. Up to 265 conditions per place. [2024-06-04 14:05:45,057 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 28 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2024-06-04 14:05:45,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 35 transitions, 139 flow [2024-06-04 14:05:45,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-04 14:05:45,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-04 14:05:45,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2024-06-04 14:05:45,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2024-06-04 14:05:45,068 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 62 flow. Second operand 3 states and 54 transitions. [2024-06-04 14:05:45,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 35 transitions, 139 flow [2024-06-04 14:05:45,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-04 14:05:45,072 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 68 flow [2024-06-04 14:05:45,073 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2024-06-04 14:05:45,076 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2024-06-04 14:05:45,076 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 68 flow [2024-06-04 14:05:45,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-06-04 14:05:45,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 14:05:45,077 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 14:05:45,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-04 14:05:45,077 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-04 14:05:45,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 14:05:45,078 INFO L85 PathProgramCache]: Analyzing trace with hash 199870207, now seen corresponding path program 1 times [2024-06-04 14:05:45,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 14:05:45,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668991296] [2024-06-04 14:05:45,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 14:05:45,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 14:05:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 14:05:45,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 14:05:45,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 14:05:45,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668991296] [2024-06-04 14:05:45,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668991296] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 14:05:45,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 14:05:45,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-04 14:05:45,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976603633] [2024-06-04 14:05:45,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 14:05:45,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-04 14:05:45,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 14:05:45,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-04 14:05:45,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-04 14:05:45,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 33 [2024-06-04 14:05:45,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-06-04 14:05:45,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 14:05:45,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 33 [2024-06-04 14:05:45,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 14:05:45,358 INFO L124 PetriNetUnfolderBase]: 166/322 cut-off events. [2024-06-04 14:05:45,360 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-06-04 14:05:45,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 322 events. 166/322 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1219 event pairs, 54 based on Foata normal form. 12/329 useless extension candidates. Maximal degree in co-relation 692. Up to 175 conditions per place. [2024-06-04 14:05:45,363 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 35 selfloop transitions, 3 changer transitions 0/43 dead transitions. [2024-06-04 14:05:45,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 43 transitions, 180 flow [2024-06-04 14:05:45,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-04 14:05:45,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-04 14:05:45,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions. [2024-06-04 14:05:45,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5151515151515151 [2024-06-04 14:05:45,367 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 68 flow. Second operand 4 states and 68 transitions. [2024-06-04 14:05:45,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 43 transitions, 180 flow [2024-06-04 14:05:45,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-04 14:05:45,369 INFO L231 Difference]: Finished difference. Result has 37 places, 27 transitions, 76 flow [2024-06-04 14:05:45,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=76, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2024-06-04 14:05:45,370 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2024-06-04 14:05:45,370 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 76 flow [2024-06-04 14:05:45,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-06-04 14:05:45,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 14:05:45,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 14:05:45,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-04 14:05:45,371 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-04 14:05:45,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 14:05:45,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1198224611, now seen corresponding path program 1 times [2024-06-04 14:05:45,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 14:05:45,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794984858] [2024-06-04 14:05:45,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 14:05:45,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 14:05:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 14:05:45,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 14:05:45,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 14:05:45,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794984858] [2024-06-04 14:05:45,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794984858] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 14:05:45,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 14:05:45,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-04 14:05:45,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718982827] [2024-06-04 14:05:45,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 14:05:45,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 14:05:45,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 14:05:45,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 14:05:45,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-04 14:05:45,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 33 [2024-06-04 14:05:45,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-06-04 14:05:45,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 14:05:45,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 33 [2024-06-04 14:05:45,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 14:05:45,609 INFO L124 PetriNetUnfolderBase]: 172/334 cut-off events. [2024-06-04 14:05:45,609 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-06-04 14:05:45,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 773 conditions, 334 events. 172/334 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1238 event pairs, 64 based on Foata normal form. 6/336 useless extension candidates. Maximal degree in co-relation 757. Up to 130 conditions per place. [2024-06-04 14:05:45,613 INFO L140 encePairwiseOnDemand]: 27/33 looper letters, 43 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2024-06-04 14:05:45,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 51 transitions, 224 flow [2024-06-04 14:05:45,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 14:05:45,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 14:05:45,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 84 transitions. [2024-06-04 14:05:45,616 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509090909090909 [2024-06-04 14:05:45,617 INFO L175 Difference]: Start difference. First operand has 37 places, 27 transitions, 76 flow. Second operand 5 states and 84 transitions. [2024-06-04 14:05:45,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 51 transitions, 224 flow [2024-06-04 14:05:45,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 51 transitions, 218 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-04 14:05:45,622 INFO L231 Difference]: Finished difference. Result has 39 places, 27 transitions, 84 flow [2024-06-04 14:05:45,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=84, PETRI_PLACES=39, PETRI_TRANSITIONS=27} [2024-06-04 14:05:45,623 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 5 predicate places. [2024-06-04 14:05:45,623 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 27 transitions, 84 flow [2024-06-04 14:05:45,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-06-04 14:05:45,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 14:05:45,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 14:05:45,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-04 14:05:45,625 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-04 14:05:45,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 14:05:45,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1512122299, now seen corresponding path program 1 times [2024-06-04 14:05:45,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 14:05:45,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227746727] [2024-06-04 14:05:45,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 14:05:45,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 14:05:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 14:05:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 14:05:45,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 14:05:45,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227746727] [2024-06-04 14:05:45,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227746727] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 14:05:45,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 14:05:45,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 14:05:45,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462460256] [2024-06-04 14:05:45,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 14:05:45,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 14:05:45,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 14:05:45,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 14:05:45,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-04 14:05:45,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 33 [2024-06-04 14:05:45,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 27 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-06-04 14:05:45,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 14:05:45,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 33 [2024-06-04 14:05:45,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 14:05:45,806 INFO L124 PetriNetUnfolderBase]: 148/292 cut-off events. [2024-06-04 14:05:45,807 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-06-04 14:05:45,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 292 events. 148/292 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1070 event pairs, 52 based on Foata normal form. 18/306 useless extension candidates. Maximal degree in co-relation 663. Up to 108 conditions per place. [2024-06-04 14:05:45,808 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2024-06-04 14:05:45,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 212 flow [2024-06-04 14:05:45,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 14:05:45,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 14:05:45,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 82 transitions. [2024-06-04 14:05:45,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49696969696969695 [2024-06-04 14:05:45,811 INFO L175 Difference]: Start difference. First operand has 39 places, 27 transitions, 84 flow. Second operand 5 states and 82 transitions. [2024-06-04 14:05:45,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 212 flow [2024-06-04 14:05:45,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 49 transitions, 198 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-06-04 14:05:45,812 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2024-06-04 14:05:45,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2024-06-04 14:05:45,814 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2024-06-04 14:05:45,814 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2024-06-04 14:05:45,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-06-04 14:05:45,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-06-04 14:05:45,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-06-04 14:05:45,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-04 14:05:45,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-04 14:05:45,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-04 14:05:45,817 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-04 14:05:45,821 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-04 14:05:45,821 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-04 14:05:45,826 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-04 14:05:45,826 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-04 14:05:45,827 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.06 02:05:45 BasicIcfg [2024-06-04 14:05:45,827 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-04 14:05:45,827 INFO L158 Benchmark]: Toolchain (without parser) took 2516.70ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 64.6MB in the beginning and 67.9MB in the end (delta: -3.3MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2024-06-04 14:05:45,827 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 140.5MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 14:05:45,828 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 140.5MB. Free memory was 68.4MB in the beginning and 68.3MB in the end (delta: 158.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 14:05:45,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.34ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 64.4MB in the beginning and 148.7MB in the end (delta: -84.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2024-06-04 14:05:45,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.75ms. Allocated memory is still 188.7MB. Free memory was 148.7MB in the beginning and 146.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-04 14:05:45,828 INFO L158 Benchmark]: Boogie Preprocessor took 65.15ms. Allocated memory is still 188.7MB. Free memory was 146.6MB in the beginning and 144.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-04 14:05:45,829 INFO L158 Benchmark]: RCFGBuilder took 453.74ms. Allocated memory is still 188.7MB. Free memory was 144.5MB in the beginning and 108.9MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-06-04 14:05:45,829 INFO L158 Benchmark]: TraceAbstraction took 1469.55ms. Allocated memory is still 188.7MB. Free memory was 108.9MB in the beginning and 67.9MB in the end (delta: 41.0MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2024-06-04 14:05:45,834 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 140.5MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 140.5MB. Free memory was 68.4MB in the beginning and 68.3MB in the end (delta: 158.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.34ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 64.4MB in the beginning and 148.7MB in the end (delta: -84.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.75ms. Allocated memory is still 188.7MB. Free memory was 148.7MB in the beginning and 146.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.15ms. Allocated memory is still 188.7MB. Free memory was 146.6MB in the beginning and 144.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 453.74ms. Allocated memory is still 188.7MB. Free memory was 144.5MB in the beginning and 108.9MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1469.55ms. Allocated memory is still 188.7MB. Free memory was 108.9MB in the beginning and 67.9MB in the end (delta: 41.0MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 721]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 722]: 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, 53 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: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 307 IncrementalHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 4 mSDtfsCounter, 307 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=3, InterpolantAutomatonStates: 17, 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2024-06-04 14:05:45,867 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