./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stateful01-2.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-05-07_14-17-48.files/protection/stateful01-2.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b44c8288 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-2.i ./goblint.2024-05-07_14-17-48.files/protection/stateful01-2.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 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-b44c828-m [2024-05-12 12:37:39,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-12 12:37:39,302 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-05-12 12:37:39,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-12 12:37:39,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-12 12:37:39,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-12 12:37:39,332 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-12 12:37:39,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-12 12:37:39,333 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-05-12 12:37:39,336 INFO L153 SettingsManager]: * Use memory slicer=true [2024-05-12 12:37:39,336 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-12 12:37:39,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-12 12:37:39,337 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-12 12:37:39,338 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-12 12:37:39,338 INFO L153 SettingsManager]: * Use SBE=true [2024-05-12 12:37:39,339 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-12 12:37:39,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-12 12:37:39,339 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-12 12:37:39,339 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-12 12:37:39,339 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-12 12:37:39,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-12 12:37:39,340 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-12 12:37:39,340 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-12 12:37:39,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-12 12:37:39,341 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-05-12 12:37:39,341 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-12 12:37:39,341 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-12 12:37:39,341 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-12 12:37:39,342 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-12 12:37:39,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-12 12:37:39,343 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-05-12 12:37:39,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-12 12:37:39,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 12:37:39,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-12 12:37:39,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-12 12:37:39,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-12 12:37:39,344 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-12 12:37:39,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-12 12:37:39,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-12 12:37:39,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-05-12 12:37:39,344 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-12 12:37:39,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-05-12 12:37:39,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-05-12 12:37:39,345 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-05-12 12:37:39,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-12 12:37:39,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-12 12:37:39,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-12 12:37:39,593 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-12 12:37:39,594 INFO L274 PluginConnector]: CDTParser initialized [2024-05-12 12:37:39,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2024-05-12 12:37:40,585 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-12 12:37:40,767 INFO L384 CDTParser]: Found 1 translation units. [2024-05-12 12:37:40,769 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2024-05-12 12:37:40,781 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5220e6cb/7ebc7becee224857975539f024b5da46/FLAG08a34b188 [2024-05-12 12:37:40,793 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5220e6cb/7ebc7becee224857975539f024b5da46 [2024-05-12 12:37:40,795 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-05-12 12:37:40,795 INFO L274 PluginConnector]: Witness Parser initialized [2024-05-12 12:37:40,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-07_14-17-48.files/protection/stateful01-2.yml/witness.yml [2024-05-12 12:37:40,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-12 12:37:40,882 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-12 12:37:40,884 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-12 12:37:40,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-12 12:37:40,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-12 12:37:40,888 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 12:37:40" (1/2) ... [2024-05-12 12:37:40,889 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e74deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:37:40, skipping insertion in model container [2024-05-12 12:37:40,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 12:37:40" (1/2) ... [2024-05-12 12:37:40,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e75f8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:37:40, skipping insertion in model container [2024-05-12 12:37:40,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 12:37:40" (2/2) ... [2024-05-12 12:37:40,893 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e74deb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:37:40, skipping insertion in model container [2024-05-12 12:37:40,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 12:37:40" (2/2) ... [2024-05-12 12:37:40,894 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-05-12 12:37:40,921 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-05-12 12:37:40,922 INFO L97 edCorrectnessWitness]: Location invariant before [L723-L723] ! multithreaded || 10 <= data1 [2024-05-12 12:37:40,922 INFO L97 edCorrectnessWitness]: Location invariant before [L722-L722] ! multithreaded || 10 <= data1 [2024-05-12 12:37:40,922 INFO L103 edCorrectnessWitness]: ghost_variable ma_locked = 0 [2024-05-12 12:37:40,922 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-05-12 12:37:40,923 INFO L106 edCorrectnessWitness]: ghost_update [L709-L709] ma_locked = 1; [2024-05-12 12:37:40,923 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] ma_locked = 1; [2024-05-12 12:37:40,923 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] ma_locked = 1; [2024-05-12 12:37:40,924 INFO L106 edCorrectnessWitness]: ghost_update [L711-L711] ma_locked = 0; [2024-05-12 12:37:40,924 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] ma_locked = 0; [2024-05-12 12:37:40,924 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] ma_locked = 0; [2024-05-12 12:37:40,924 INFO L106 edCorrectnessWitness]: ghost_update [L708-L708] ma_locked = 0; [2024-05-12 12:37:40,924 INFO L106 edCorrectnessWitness]: ghost_update [L721-L721] multithreaded = 1; [2024-05-12 12:37:40,924 INFO L106 edCorrectnessWitness]: ghost_update [L706-L706] ma_locked = 1; [2024-05-12 12:37:40,959 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-12 12:37:41,254 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i[30826,30839] [2024-05-12 12:37:41,258 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 12:37:41,267 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 12:37:41,347 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i[30826,30839] [2024-05-12 12:37:41,352 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 12:37:41,385 INFO L206 MainTranslator]: Completed translation [2024-05-12 12:37:41,385 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:37:41 WrapperNode [2024-05-12 12:37:41,386 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-12 12:37:41,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-12 12:37:41,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-12 12:37:41,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-12 12:37:41,393 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 12.05 12:37:41" (1/1) ... [2024-05-12 12:37:41,416 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 12.05 12:37:41" (1/1) ... [2024-05-12 12:37:41,442 INFO L138 Inliner]: procedures = 169, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2024-05-12 12:37:41,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-12 12:37:41,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-12 12:37:41,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-12 12:37:41,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-12 12:37:41,452 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:37:41" (1/1) ... [2024-05-12 12:37:41,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:37:41" (1/1) ... [2024-05-12 12:37:41,462 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:37:41" (1/1) ... [2024-05-12 12:37:41,487 INFO L175 MemorySlicer]: Split 16 memory accesses to 5 slices as follows [2, 5, 5, 2, 2]. 31 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0, 0]. The 2 writes are split as follows [0, 0, 0, 1, 1]. [2024-05-12 12:37:41,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:37:41" (1/1) ... [2024-05-12 12:37:41,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:37:41" (1/1) ... [2024-05-12 12:37:41,495 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:37:41" (1/1) ... [2024-05-12 12:37:41,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:37:41" (1/1) ... [2024-05-12 12:37:41,500 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:37:41" (1/1) ... [2024-05-12 12:37:41,503 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:37:41" (1/1) ... [2024-05-12 12:37:41,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-12 12:37:41,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-12 12:37:41,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-12 12:37:41,513 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-12 12:37:41,514 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:37:41" (1/1) ... [2024-05-12 12:37:41,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 12:37:41,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-05-12 12:37:41,540 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) [2024-05-12 12:37:41,542 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 [2024-05-12 12:37:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-05-12 12:37:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-05-12 12:37:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-05-12 12:37:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-05-12 12:37:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-05-12 12:37:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-12 12:37:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-12 12:37:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-12 12:37:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-12 12:37:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-12 12:37:41,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-12 12:37:41,606 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-12 12:37:41,726 INFO L244 CfgBuilder]: Building ICFG [2024-05-12 12:37:41,728 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-12 12:37:41,928 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-05-12 12:37:41,928 INFO L293 CfgBuilder]: Performing block encoding [2024-05-12 12:37:42,053 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-12 12:37:42,053 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-12 12:37:42,054 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 12:37:42 BoogieIcfgContainer [2024-05-12 12:37:42,054 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-12 12:37:42,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-12 12:37:42,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-12 12:37:42,059 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-12 12:37:42,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.05 12:37:40" (1/4) ... [2024-05-12 12:37:42,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743cdd78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 12:37:42, skipping insertion in model container [2024-05-12 12:37:42,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 12:37:40" (2/4) ... [2024-05-12 12:37:42,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743cdd78 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 12:37:42, skipping insertion in model container [2024-05-12 12:37:42,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:37:41" (3/4) ... [2024-05-12 12:37:42,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743cdd78 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 12:37:42, skipping insertion in model container [2024-05-12 12:37:42,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 12:37:42" (4/4) ... [2024-05-12 12:37:42,063 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2024-05-12 12:37:42,077 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-12 12:37:42,077 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-05-12 12:37:42,078 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-12 12:37:42,110 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-12 12:37:42,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 40 transitions, 94 flow [2024-05-12 12:37:42,167 INFO L124 PetriNetUnfolderBase]: 1/38 cut-off events. [2024-05-12 12:37:42,167 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-05-12 12:37:42,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 38 events. 1/38 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2024-05-12 12:37:42,169 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 40 transitions, 94 flow [2024-05-12 12:37:42,173 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 35 transitions, 82 flow [2024-05-12 12:37:42,185 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-12 12:37:42,192 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;@1c47657b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-12 12:37:42,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-05-12 12:37:42,198 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-05-12 12:37:42,198 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-05-12 12:37:42,198 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 12:37:42,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:37:42,199 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-05-12 12:37:42,200 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 12:37:42,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:37:42,206 INFO L85 PathProgramCache]: Analyzing trace with hash -860319532, now seen corresponding path program 1 times [2024-05-12 12:37:42,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:37:42,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137878545] [2024-05-12 12:37:42,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:37:42,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:37:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:37:42,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:37:42,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:37:42,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137878545] [2024-05-12 12:37:42,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137878545] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:37:42,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:37:42,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-05-12 12:37:42,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133658814] [2024-05-12 12:37:42,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:37:42,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 12:37:42,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:37:42,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 12:37:42,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 12:37:42,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2024-05-12 12:37:42,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-05-12 12:37:42,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:37:42,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2024-05-12 12:37:42,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:37:42,579 INFO L124 PetriNetUnfolderBase]: 308/572 cut-off events. [2024-05-12 12:37:42,579 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-05-12 12:37:42,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1147 conditions, 572 events. 308/572 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2333 event pairs, 308 based on Foata normal form. 0/563 useless extension candidates. Maximal degree in co-relation 1059. Up to 544 conditions per place. [2024-05-12 12:37:42,584 INFO L140 encePairwiseOnDemand]: 37/40 looper letters, 25 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2024-05-12 12:37:42,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 33 transitions, 130 flow [2024-05-12 12:37:42,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 12:37:42,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 12:37:42,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2024-05-12 12:37:42,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48333333333333334 [2024-05-12 12:37:42,595 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 82 flow. Second operand 3 states and 58 transitions. [2024-05-12 12:37:42,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 33 transitions, 130 flow [2024-05-12 12:37:42,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 33 transitions, 122 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-05-12 12:37:42,599 INFO L231 Difference]: Finished difference. Result has 38 places, 33 transitions, 72 flow [2024-05-12 12:37:42,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=38, PETRI_TRANSITIONS=33} [2024-05-12 12:37:42,602 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -4 predicate places. [2024-05-12 12:37:42,603 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 33 transitions, 72 flow [2024-05-12 12:37:42,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-05-12 12:37:42,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:37:42,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 12:37:42,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-12 12:37:42,604 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 12:37:42,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:37:42,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2138043269, now seen corresponding path program 1 times [2024-05-12 12:37:42,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:37:42,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098062795] [2024-05-12 12:37:42,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:37:42,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:37:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:37:42,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:37:42,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:37:42,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098062795] [2024-05-12 12:37:42,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098062795] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:37:42,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:37:42,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-12 12:37:42,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097182905] [2024-05-12 12:37:42,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:37:42,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 12:37:42,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:37:42,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 12:37:42,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 12:37:42,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-05-12 12:37:42,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-05-12 12:37:42,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:37:42,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-05-12 12:37:42,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:37:42,920 INFO L124 PetriNetUnfolderBase]: 180/379 cut-off events. [2024-05-12 12:37:42,920 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-05-12 12:37:42,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 760 conditions, 379 events. 180/379 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1466 event pairs, 72 based on Foata normal form. 48/419 useless extension candidates. Maximal degree in co-relation 754. Up to 224 conditions per place. [2024-05-12 12:37:42,922 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 27 selfloop transitions, 8 changer transitions 0/42 dead transitions. [2024-05-12 12:37:42,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 42 transitions, 162 flow [2024-05-12 12:37:42,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 12:37:42,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 12:37:42,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-05-12 12:37:42,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-05-12 12:37:42,923 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 72 flow. Second operand 3 states and 75 transitions. [2024-05-12 12:37:42,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 42 transitions, 162 flow [2024-05-12 12:37:42,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 161 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-05-12 12:37:42,925 INFO L231 Difference]: Finished difference. Result has 39 places, 33 transitions, 87 flow [2024-05-12 12:37:42,925 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2024-05-12 12:37:42,925 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2024-05-12 12:37:42,925 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 87 flow [2024-05-12 12:37:42,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-05-12 12:37:42,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:37:42,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 12:37:42,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-12 12:37:42,926 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 12:37:42,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:37:42,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1224431237, now seen corresponding path program 2 times [2024-05-12 12:37:42,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:37:42,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145502129] [2024-05-12 12:37:42,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:37:42,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:37:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:37:43,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:37:43,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:37:43,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145502129] [2024-05-12 12:37:43,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145502129] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:37:43,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:37:43,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 12:37:43,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442709993] [2024-05-12 12:37:43,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:37:43,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-12 12:37:43,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:37:43,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-12 12:37:43,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-05-12 12:37:43,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2024-05-12 12:37:43,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2024-05-12 12:37:43,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:37:43,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2024-05-12 12:37:43,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:37:43,246 INFO L124 PetriNetUnfolderBase]: 251/546 cut-off events. [2024-05-12 12:37:43,246 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-05-12 12:37:43,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1229 conditions, 546 events. 251/546 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2382 event pairs, 62 based on Foata normal form. 1/545 useless extension candidates. Maximal degree in co-relation 1223. Up to 222 conditions per place. [2024-05-12 12:37:43,253 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 27 selfloop transitions, 2 changer transitions 30/65 dead transitions. [2024-05-12 12:37:43,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 65 transitions, 293 flow [2024-05-12 12:37:43,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 12:37:43,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 12:37:43,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 105 transitions. [2024-05-12 12:37:43,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.525 [2024-05-12 12:37:43,257 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 87 flow. Second operand 5 states and 105 transitions. [2024-05-12 12:37:43,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 65 transitions, 293 flow [2024-05-12 12:37:43,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 65 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-05-12 12:37:43,264 INFO L231 Difference]: Finished difference. Result has 44 places, 33 transitions, 89 flow [2024-05-12 12:37:43,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=89, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2024-05-12 12:37:43,265 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places. [2024-05-12 12:37:43,265 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 89 flow [2024-05-12 12:37:43,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2024-05-12 12:37:43,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:37:43,267 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 12:37:43,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-12 12:37:43,267 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 12:37:43,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:37:43,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1027240775, now seen corresponding path program 3 times [2024-05-12 12:37:43,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:37:43,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869734281] [2024-05-12 12:37:43,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:37:43,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:37:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:37:43,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:37:43,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:37:43,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869734281] [2024-05-12 12:37:43,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869734281] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:37:43,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:37:43,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 12:37:43,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431301674] [2024-05-12 12:37:43,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:37:43,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-12 12:37:43,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:37:43,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-12 12:37:43,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-05-12 12:37:43,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2024-05-12 12:37:43,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 33 transitions, 89 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2024-05-12 12:37:43,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:37:43,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2024-05-12 12:37:43,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:37:43,503 INFO L124 PetriNetUnfolderBase]: 117/261 cut-off events. [2024-05-12 12:37:43,503 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-05-12 12:37:43,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 261 events. 117/261 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 843 event pairs, 20 based on Foata normal form. 1/260 useless extension candidates. Maximal degree in co-relation 561. Up to 172 conditions per place. [2024-05-12 12:37:43,504 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2024-05-12 12:37:43,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 40 transitions, 174 flow [2024-05-12 12:37:43,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 12:37:43,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 12:37:43,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 81 transitions. [2024-05-12 12:37:43,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.405 [2024-05-12 12:37:43,506 INFO L175 Difference]: Start difference. First operand has 44 places, 33 transitions, 89 flow. Second operand 5 states and 81 transitions. [2024-05-12 12:37:43,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 40 transitions, 174 flow [2024-05-12 12:37:43,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 12:37:43,507 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2024-05-12 12:37:43,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2024-05-12 12:37:43,507 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 0 predicate places. [2024-05-12 12:37:43,508 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2024-05-12 12:37:43,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2024-05-12 12:37:43,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-05-12 12:37:43,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-05-12 12:37:43,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-05-12 12:37:43,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-05-12 12:37:43,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-05-12 12:37:43,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-12 12:37:43,511 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2024-05-12 12:37:43,514 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-12 12:37:43,514 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-12 12:37:43,517 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-05-12 12:37:43,518 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-05-12 12:37:43,518 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.05 12:37:43 BasicIcfg [2024-05-12 12:37:43,519 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-12 12:37:43,519 INFO L158 Benchmark]: Toolchain (without parser) took 2637.47ms. Allocated memory was 161.5MB in the beginning and 220.2MB in the end (delta: 58.7MB). Free memory was 83.0MB in the beginning and 180.5MB in the end (delta: -97.5MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2024-05-12 12:37:43,519 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 161.5MB. Free memory was 134.1MB in the beginning and 133.9MB in the end (delta: 126.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 12:37:43,520 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 161.5MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 12:37:43,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 502.12ms. Allocated memory is still 161.5MB. Free memory was 82.6MB in the beginning and 117.3MB in the end (delta: -34.7MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-05-12 12:37:43,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.77ms. Allocated memory is still 161.5MB. Free memory was 117.3MB in the beginning and 115.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-05-12 12:37:43,521 INFO L158 Benchmark]: Boogie Preprocessor took 68.92ms. Allocated memory is still 161.5MB. Free memory was 115.3MB in the beginning and 113.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-05-12 12:37:43,521 INFO L158 Benchmark]: RCFGBuilder took 541.71ms. Allocated memory is still 161.5MB. Free memory was 113.2MB in the beginning and 103.7MB in the end (delta: 9.5MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-05-12 12:37:43,521 INFO L158 Benchmark]: TraceAbstraction took 1462.52ms. Allocated memory was 161.5MB in the beginning and 220.2MB in the end (delta: 58.7MB). Free memory was 102.8MB in the beginning and 180.5MB in the end (delta: -77.6MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. [2024-05-12 12:37:43,523 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 161.5MB. Free memory was 134.1MB in the beginning and 133.9MB in the end (delta: 126.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 161.5MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 502.12ms. Allocated memory is still 161.5MB. Free memory was 82.6MB in the beginning and 117.3MB in the end (delta: -34.7MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.77ms. Allocated memory is still 161.5MB. Free memory was 117.3MB in the beginning and 115.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.92ms. Allocated memory is still 161.5MB. Free memory was 115.3MB in the beginning and 113.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 541.71ms. Allocated memory is still 161.5MB. Free memory was 113.2MB in the beginning and 103.7MB in the end (delta: 9.5MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1462.52ms. Allocated memory was 161.5MB in the beginning and 220.2MB in the end (delta: 58.7MB). Free memory was 102.8MB in the beginning and 180.5MB in the end (delta: -77.6MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 722]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 723]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 727]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 62 locations, 5 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: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 359 IncrementalHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 0 mSDtfsCounter, 359 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 265 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-05-12 12:37:43,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE