./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_31-traces-mine-vs-mutex_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_31-traces-mine-vs-mutex_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 19:41:17,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 19:41:17,296 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 19:41:17,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 19:41:17,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 19:41:17,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 19:41:17,330 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 19:41:17,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 19:41:17,331 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 19:41:17,335 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 19:41:17,335 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 19:41:17,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 19:41:17,336 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 19:41:17,337 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 19:41:17,338 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 19:41:17,338 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 19:41:17,338 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 19:41:17,339 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 19:41:17,339 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 19:41:17,339 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 19:41:17,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 19:41:17,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 19:41:17,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 19:41:17,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 19:41:17,342 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 19:41:17,342 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 19:41:17,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 19:41:17,343 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 19:41:17,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 19:41:17,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 19:41:17,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 19:41:17,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 19:41:17,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:41:17,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 19:41:17,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 19:41:17,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 19:41:17,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 19:41:17,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 19:41:17,347 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 19:41:17,347 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 19:41:17,347 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 19:41:17,347 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 19:41:17,348 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 19:41:17,348 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 19:41:17,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 19:41:17,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 19:41:17,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 19:41:17,660 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 19:41:17,660 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 19:41:17,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/13-privatized_31-traces-mine-vs-mutex_true.yml/witness.yml [2024-06-27 19:41:17,755 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 19:41:17,755 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 19:41:17,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2024-06-27 19:41:18,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 19:41:19,201 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 19:41:19,204 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2024-06-27 19:41:19,220 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/390c86221/2314f789582a4ba5a4fd2b8043e7131b/FLAG583c15e70 [2024-06-27 19:41:19,235 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/390c86221/2314f789582a4ba5a4fd2b8043e7131b [2024-06-27 19:41:19,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 19:41:19,238 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 19:41:19,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 19:41:19,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 19:41:19,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 19:41:19,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:41:17" (1/2) ... [2024-06-27 19:41:19,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c8b2088 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:19, skipping insertion in model container [2024-06-27 19:41:19,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:41:17" (1/2) ... [2024-06-27 19:41:19,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5593bbc5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:19, skipping insertion in model container [2024-06-27 19:41:19,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:41:19" (2/2) ... [2024-06-27 19:41:19,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c8b2088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19, skipping insertion in model container [2024-06-27 19:41:19,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:41:19" (2/2) ... [2024-06-27 19:41:19,250 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 19:41:19,281 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 19:41:19,283 INFO L97 edCorrectnessWitness]: Location invariant before [L698-L698] ! multithreaded || 0 <= g [2024-06-27 19:41:19,283 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-27 19:41:19,284 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 19:41:19,284 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-27 19:41:19,284 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] B_locked = 0; [2024-06-27 19:41:19,285 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] A_locked = 0; [2024-06-27 19:41:19,285 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 1; [2024-06-27 19:41:19,285 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] B_locked = 1; [2024-06-27 19:41:19,285 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] B_locked = 0; [2024-06-27 19:41:19,285 INFO L106 edCorrectnessWitness]: ghost_update [L703-L703] B_locked = 0; [2024-06-27 19:41:19,286 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] A_locked = 1; [2024-06-27 19:41:19,286 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] B_locked = 1; [2024-06-27 19:41:19,286 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] B_locked = 0; [2024-06-27 19:41:19,286 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-06-27 19:41:19,286 INFO L106 edCorrectnessWitness]: ghost_update [L704-L704] A_locked = 0; [2024-06-27 19:41:19,286 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] B_locked = 1; [2024-06-27 19:41:19,287 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] A_locked = 1; [2024-06-27 19:41:19,328 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 19:41:19,664 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:41:19,679 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 19:41:19,783 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:41:19,826 INFO L206 MainTranslator]: Completed translation [2024-06-27 19:41:19,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19 WrapperNode [2024-06-27 19:41:19,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 19:41:19,829 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 19:41:19,829 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 19:41:19,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 19:41:19,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19" (1/1) ... [2024-06-27 19:41:19,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19" (1/1) ... [2024-06-27 19:41:19,868 INFO L138 Inliner]: procedures = 162, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-06-27 19:41:19,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 19:41:19,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 19:41:19,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 19:41:19,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 19:41:19,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19" (1/1) ... [2024-06-27 19:41:19,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19" (1/1) ... [2024-06-27 19:41:19,881 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19" (1/1) ... [2024-06-27 19:41:19,893 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]. [2024-06-27 19:41:19,894 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19" (1/1) ... [2024-06-27 19:41:19,894 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19" (1/1) ... [2024-06-27 19:41:19,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19" (1/1) ... [2024-06-27 19:41:19,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19" (1/1) ... [2024-06-27 19:41:19,901 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19" (1/1) ... [2024-06-27 19:41:19,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19" (1/1) ... [2024-06-27 19:41:19,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 19:41:19,905 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 19:41:19,905 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 19:41:19,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 19:41:19,906 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19" (1/1) ... [2024-06-27 19:41:19,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:41:19,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:41:19,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-27 19:41:19,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-27 19:41:19,962 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 19:41:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 19:41:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-27 19:41:19,963 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-27 19:41:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 19:41:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 19:41:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 19:41:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 19:41:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 19:41:19,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 19:41:19,968 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 19:41:20,079 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 19:41:20,081 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 19:41:20,224 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 19:41:20,224 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 19:41:20,419 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 19:41:20,419 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 19:41:20,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:41:20 BoogieIcfgContainer [2024-06-27 19:41:20,420 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 19:41:20,421 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 19:41:20,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 19:41:20,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 19:41:20,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:41:17" (1/4) ... [2024-06-27 19:41:20,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5734c99e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:41:20, skipping insertion in model container [2024-06-27 19:41:20,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 07:41:19" (2/4) ... [2024-06-27 19:41:20,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5734c99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:41:20, skipping insertion in model container [2024-06-27 19:41:20,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:19" (3/4) ... [2024-06-27 19:41:20,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5734c99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:41:20, skipping insertion in model container [2024-06-27 19:41:20,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:41:20" (4/4) ... [2024-06-27 19:41:20,436 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2024-06-27 19:41:20,453 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 19:41:20,454 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-27 19:41:20,454 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 19:41:20,483 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-27 19:41:20,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 75 flow [2024-06-27 19:41:20,536 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2024-06-27 19:41:20,537 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-27 19:41:20,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 33 events. 0/33 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-27 19:41:20,539 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 34 transitions, 75 flow [2024-06-27 19:41:20,541 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2024-06-27 19:41:20,550 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 19:41:20,556 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;@24057fcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 19:41:20,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-27 19:41:20,560 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 19:41:20,560 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 19:41:20,560 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:41:20,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:41:20,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 19:41:20,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 19:41:20,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:41:20,567 INFO L85 PathProgramCache]: Analyzing trace with hash 245394365, now seen corresponding path program 1 times [2024-06-27 19:41:20,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:41:20,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548089484] [2024-06-27 19:41:20,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:41:20,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:41:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:41:20,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:41:20,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:41:20,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548089484] [2024-06-27 19:41:20,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548089484] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:41:20,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:41:20,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 19:41:20,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600282720] [2024-06-27 19:41:20,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:41:20,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:41:20,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:41:20,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:41:20,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:41:20,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-06-27 19:41:20,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:41:20,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:41:20,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-06-27 19:41:20,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:41:20,906 INFO L124 PetriNetUnfolderBase]: 15/51 cut-off events. [2024-06-27 19:41:20,907 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-27 19:41:20,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 51 events. 15/51 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 8 based on Foata normal form. 3/51 useless extension candidates. Maximal degree in co-relation 89. Up to 35 conditions per place. [2024-06-27 19:41:20,909 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 12 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2024-06-27 19:41:20,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 69 flow [2024-06-27 19:41:20,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:41:20,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:41:20,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2024-06-27 19:41:20,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-27 19:41:20,922 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 51 transitions. [2024-06-27 19:41:20,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 69 flow [2024-06-27 19:41:20,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 68 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:41:20,926 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 46 flow [2024-06-27 19:41:20,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2024-06-27 19:41:20,931 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2024-06-27 19:41:20,932 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 46 flow [2024-06-27 19:41:20,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:41:20,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:41:20,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:41:20,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 19:41:20,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 19:41:20,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:41:20,934 INFO L85 PathProgramCache]: Analyzing trace with hash -130121290, now seen corresponding path program 1 times [2024-06-27 19:41:20,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:41:20,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764178672] [2024-06-27 19:41:20,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:41:20,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:41:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:41:21,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:41:21,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:41:21,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764178672] [2024-06-27 19:41:21,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764178672] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:41:21,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:41:21,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 19:41:21,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739969596] [2024-06-27 19:41:21,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:41:21,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:41:21,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:41:21,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:41:21,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:41:21,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-06-27 19:41:21,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 46 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:41:21,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:41:21,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-06-27 19:41:21,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:41:21,081 INFO L124 PetriNetUnfolderBase]: 12/44 cut-off events. [2024-06-27 19:41:21,081 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-06-27 19:41:21,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 44 events. 12/44 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 5 based on Foata normal form. 3/44 useless extension candidates. Maximal degree in co-relation 84. Up to 20 conditions per place. [2024-06-27 19:41:21,083 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 12 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2024-06-27 19:41:21,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 80 flow [2024-06-27 19:41:21,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 19:41:21,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 19:41:21,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2024-06-27 19:41:21,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47058823529411764 [2024-06-27 19:41:21,088 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 46 flow. Second operand 4 states and 64 transitions. [2024-06-27 19:41:21,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 80 flow [2024-06-27 19:41:21,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 20 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 19:41:21,090 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 52 flow [2024-06-27 19:41:21,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=52, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2024-06-27 19:41:21,095 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 4 predicate places. [2024-06-27 19:41:21,095 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 52 flow [2024-06-27 19:41:21,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:41:21,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:41:21,095 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:41:21,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 19:41:21,096 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 19:41:21,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:41:21,096 INFO L85 PathProgramCache]: Analyzing trace with hash -834523148, now seen corresponding path program 1 times [2024-06-27 19:41:21,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:41:21,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084402184] [2024-06-27 19:41:21,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:41:21,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:41:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:41:21,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:41:21,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:41:21,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084402184] [2024-06-27 19:41:21,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084402184] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:41:21,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:41:21,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:41:21,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467794990] [2024-06-27 19:41:21,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:41:21,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 19:41:21,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:41:21,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 19:41:21,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-27 19:41:21,216 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-06-27 19:41:21,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 52 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:41:21,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:41:21,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-06-27 19:41:21,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:41:21,264 INFO L124 PetriNetUnfolderBase]: 9/37 cut-off events. [2024-06-27 19:41:21,265 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-06-27 19:41:21,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 37 events. 9/37 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 33 event pairs, 2 based on Foata normal form. 4/39 useless extension candidates. Maximal degree in co-relation 70. Up to 12 conditions per place. [2024-06-27 19:41:21,266 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2024-06-27 19:41:21,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 19 transitions, 78 flow [2024-06-27 19:41:21,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 19:41:21,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 19:41:21,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 75 transitions. [2024-06-27 19:41:21,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4411764705882353 [2024-06-27 19:41:21,273 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 52 flow. Second operand 5 states and 75 transitions. [2024-06-27 19:41:21,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 19 transitions, 78 flow [2024-06-27 19:41:21,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 68 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-27 19:41:21,276 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2024-06-27 19:41:21,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2024-06-27 19:41:21,278 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2024-06-27 19:41:21,278 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2024-06-27 19:41:21,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:41:21,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-27 19:41:21,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-27 19:41:21,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 19:41:21,282 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-27 19:41:21,286 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 19:41:21,287 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 19:41:21,291 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-27 19:41:21,291 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-27 19:41:21,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 07:41:21 BasicIcfg [2024-06-27 19:41:21,292 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 19:41:21,293 INFO L158 Benchmark]: Toolchain (without parser) took 2054.95ms. Allocated memory is still 157.3MB. Free memory was 98.5MB in the beginning and 62.8MB in the end (delta: 35.7MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2024-06-27 19:41:21,293 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 157.3MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:41:21,294 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 157.3MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:41:21,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.65ms. Allocated memory is still 157.3MB. Free memory was 98.5MB in the beginning and 72.7MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-27 19:41:21,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.26ms. Allocated memory is still 157.3MB. Free memory was 72.7MB in the beginning and 70.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:41:21,295 INFO L158 Benchmark]: Boogie Preprocessor took 34.97ms. Allocated memory is still 157.3MB. Free memory was 70.6MB in the beginning and 68.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:41:21,295 INFO L158 Benchmark]: RCFGBuilder took 514.64ms. Allocated memory is still 157.3MB. Free memory was 68.5MB in the beginning and 124.6MB in the end (delta: -56.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-06-27 19:41:21,298 INFO L158 Benchmark]: TraceAbstraction took 870.98ms. Allocated memory is still 157.3MB. Free memory was 123.6MB in the beginning and 62.8MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-06-27 19:41:21,300 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.19ms. Allocated memory is still 157.3MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 157.3MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.65ms. Allocated memory is still 157.3MB. Free memory was 98.5MB in the beginning and 72.7MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.26ms. Allocated memory is still 157.3MB. Free memory was 72.7MB in the beginning and 70.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.97ms. Allocated memory is still 157.3MB. Free memory was 70.6MB in the beginning and 68.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 514.64ms. Allocated memory is still 157.3MB. Free memory was 68.5MB in the beginning and 124.6MB in the end (delta: -56.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 870.98ms. Allocated memory is still 157.3MB. Free memory was 123.6MB in the beginning and 62.8MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: 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 3 procedures, 50 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 19:41:21,329 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