./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_24-multiple-protecting_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 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_24-multiple-protecting_true.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_24-multiple-protecting_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-cde23df-m [2024-06-14 14:13:51,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:13:51,810 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:13:51,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:13:51,824 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:13:51,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:13:51,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:13:51,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:13:51,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:13:51,860 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:13:51,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:13:51,861 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:13:51,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:13:51,863 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:13:51,863 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:13:51,863 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:13:51,864 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:13:51,864 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:13:51,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:13:51,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:13:51,866 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:13:51,866 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:13:51,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:13:51,867 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:13:51,867 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:13:51,867 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:13:51,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:13:51,868 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:13:51,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:13:51,869 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:13:51,870 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:13:51,870 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:13:51,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:13:51,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:13:51,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:13:51,871 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:13:51,871 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:13:51,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:13:51,871 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:13:51,872 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:13:51,872 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:13:51,872 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:13:51,872 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:13:51,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:13:52,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:13:52,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:13:52,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:13:52,143 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:13:52,144 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:13:52,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_24-multiple-protecting_true.yml/witness.yml [2024-06-14 14:13:52,314 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:13:52,314 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:13:52,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2024-06-14 14:13:53,430 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:13:53,724 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:13:53,724 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2024-06-14 14:13:53,744 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80b45ccd4/4ff6ecc9dab149eba228725798a459ec/FLAGd0d33ca91 [2024-06-14 14:13:53,760 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80b45ccd4/4ff6ecc9dab149eba228725798a459ec [2024-06-14 14:13:53,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:13:53,762 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:13:53,764 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:13:53,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:13:53,769 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:13:53,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:13:52" (1/2) ... [2024-06-14 14:13:53,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20049fe7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:53, skipping insertion in model container [2024-06-14 14:13:53,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:13:52" (1/2) ... [2024-06-14 14:13:53,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7e459485 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:53, skipping insertion in model container [2024-06-14 14:13:53,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:13:53" (2/2) ... [2024-06-14 14:13:53,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20049fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:53, skipping insertion in model container [2024-06-14 14:13:53,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:13:53" (2/2) ... [2024-06-14 14:13:53,775 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:13:53,851 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:13:53,852 INFO L97 edCorrectnessWitness]: Location invariant before [L707-L707] (((((! multithreaded || (__global_lock_locked || ((1LL - (long long )g1) + (long long )g2 >= 0LL && (long long )g1 + (long long )g2 >= 0LL))) && (! multithreaded || (mutex2_locked || g2 == 0))) && (! multithreaded || ((0 <= g1 && g1 <= 1) && (g1 == 0 || g1 == 1)))) && (! multithreaded || (mutex1_locked || g1 == 0))) && (! multithreaded || (__global_lock_locked || (((((0 <= g1 && 0 <= g2) && g1 <= 1) && g2 <= 1) && (g1 == 0 || g1 == 1)) && (g2 == 0 || g2 == 1))))) && (! multithreaded || ((0 <= g2 && g2 <= 1) && (g2 == 0 || g2 == 1))) [2024-06-14 14:13:53,852 INFO L103 edCorrectnessWitness]: ghost_variable mutex2_locked = 0 [2024-06-14 14:13:53,853 INFO L103 edCorrectnessWitness]: ghost_variable mutex1_locked = 0 [2024-06-14 14:13:53,853 INFO L103 edCorrectnessWitness]: ghost_variable __global_lock_locked = 0 [2024-06-14 14:13:53,853 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:13:53,853 INFO L106 edCorrectnessWitness]: ghost_update [L719-L719] __global_lock_locked = 1; [2024-06-14 14:13:53,853 INFO L106 edCorrectnessWitness]: ghost_update [L707-L707] mutex1_locked = 1; [2024-06-14 14:13:53,853 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] __global_lock_locked = 0; [2024-06-14 14:13:53,854 INFO L106 edCorrectnessWitness]: ghost_update [L715-L715] __global_lock_locked = 1; [2024-06-14 14:13:53,854 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] __global_lock_locked = 1; [2024-06-14 14:13:53,854 INFO L106 edCorrectnessWitness]: ghost_update [L695-L695] __global_lock_locked = 1; [2024-06-14 14:13:53,854 INFO L106 edCorrectnessWitness]: ghost_update [L717-L717] __global_lock_locked = 0; [2024-06-14 14:13:53,854 INFO L106 edCorrectnessWitness]: ghost_update [L706-L706] multithreaded = 1; [2024-06-14 14:13:53,854 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] __global_lock_locked = 1; [2024-06-14 14:13:53,855 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] mutex2_locked = 0; [2024-06-14 14:13:53,855 INFO L106 edCorrectnessWitness]: ghost_update [L721-L721] __global_lock_locked = 0; [2024-06-14 14:13:53,855 INFO L106 edCorrectnessWitness]: ghost_update [L718-L718] mutex2_locked = 0; [2024-06-14 14:13:53,855 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] mutex1_locked = 1; [2024-06-14 14:13:53,855 INFO L106 edCorrectnessWitness]: ghost_update [L710-L710] __global_lock_locked = 0; [2024-06-14 14:13:53,855 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] __global_lock_locked = 1; [2024-06-14 14:13:53,856 INFO L106 edCorrectnessWitness]: ghost_update [L694-L694] mutex2_locked = 1; [2024-06-14 14:13:53,856 INFO L106 edCorrectnessWitness]: ghost_update [L708-L708] __global_lock_locked = 1; [2024-06-14 14:13:53,856 INFO L106 edCorrectnessWitness]: ghost_update [L714-L714] __global_lock_locked = 0; [2024-06-14 14:13:53,857 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] __global_lock_locked = 0; [2024-06-14 14:13:53,857 INFO L106 edCorrectnessWitness]: ghost_update [L693-L693] mutex1_locked = 0; [2024-06-14 14:13:53,857 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] __global_lock_locked = 0; [2024-06-14 14:13:53,857 INFO L106 edCorrectnessWitness]: ghost_update [L722-L722] mutex1_locked = 0; [2024-06-14 14:13:53,857 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] __global_lock_locked = 0; [2024-06-14 14:13:53,857 INFO L106 edCorrectnessWitness]: ghost_update [L711-L711] mutex2_locked = 1; [2024-06-14 14:13:53,857 INFO L106 edCorrectnessWitness]: ghost_update [L712-L712] __global_lock_locked = 1; [2024-06-14 14:13:53,899 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:13:54,263 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:13:54,276 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 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 [2024-06-14 14:13:54,383 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:13:54,420 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:13:54,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:54 WrapperNode [2024-06-14 14:13:54,420 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:13:54,421 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:13:54,421 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:13:54,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:13:54,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:54" (1/1) ... [2024-06-14 14:13:54,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:54" (1/1) ... [2024-06-14 14:13:54,463 INFO L138 Inliner]: procedures = 162, calls = 54, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 128 [2024-06-14 14:13:54,464 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:13:54,467 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:13:54,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:13:54,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:13:54,475 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:54" (1/1) ... [2024-06-14 14:13:54,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:54" (1/1) ... [2024-06-14 14:13:54,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:54" (1/1) ... [2024-06-14 14:13:54,496 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-06-14 14:13:54,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:54" (1/1) ... [2024-06-14 14:13:54,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:54" (1/1) ... [2024-06-14 14:13:54,502 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:54" (1/1) ... [2024-06-14 14:13:54,509 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:54" (1/1) ... [2024-06-14 14:13:54,511 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:54" (1/1) ... [2024-06-14 14:13:54,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:54" (1/1) ... [2024-06-14 14:13:54,521 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:13:54,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:13:54,522 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:13:54,527 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:13:54,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:54" (1/1) ... [2024-06-14 14:13:54,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:13:54,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:13:54,562 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) [2024-06-14 14:13:54,585 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 [2024-06-14 14:13:54,603 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-14 14:13:54,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:13:54,603 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-14 14:13:54,603 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-14 14:13:54,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:13:54,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-14 14:13:54,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-14 14:13:54,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-06-14 14:13:54,604 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-14 14:13:54,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:13:54,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:13:54,606 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:13:54,765 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:13:54,767 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:13:55,120 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:13:55,121 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:13:55,304 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:13:55,304 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-14 14:13:55,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:13:55 BoogieIcfgContainer [2024-06-14 14:13:55,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:13:55,307 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:13:55,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:13:55,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:13:55,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:13:52" (1/4) ... [2024-06-14 14:13:55,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d222688 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:13:55, skipping insertion in model container [2024-06-14 14:13:55,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:13:53" (2/4) ... [2024-06-14 14:13:55,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d222688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:13:55, skipping insertion in model container [2024-06-14 14:13:55,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:54" (3/4) ... [2024-06-14 14:13:55,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d222688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:13:55, skipping insertion in model container [2024-06-14 14:13:55,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:13:55" (4/4) ... [2024-06-14 14:13:55,319 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2024-06-14 14:13:55,337 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:13:55,337 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-14 14:13:55,337 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:13:55,374 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-14 14:13:55,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 59 transitions, 125 flow [2024-06-14 14:13:55,462 INFO L124 PetriNetUnfolderBase]: 0/58 cut-off events. [2024-06-14 14:13:55,462 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-14 14:13:55,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 58 events. 0/58 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-14 14:13:55,464 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 59 transitions, 125 flow [2024-06-14 14:13:55,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 31 transitions, 65 flow [2024-06-14 14:13:55,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:13:55,483 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;@5e6df273, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:13:55,483 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-14 14:13:55,488 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:13:55,488 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-14 14:13:55,488 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:13:55,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:13:55,489 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 14:13:55,490 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-14 14:13:55,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:13:55,494 INFO L85 PathProgramCache]: Analyzing trace with hash 937057090, now seen corresponding path program 1 times [2024-06-14 14:13:55,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:13:55,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387485344] [2024-06-14 14:13:55,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:13:55,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:13:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:13:55,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:13:55,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:13:55,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387485344] [2024-06-14 14:13:55,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387485344] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:13:55,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:13:55,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 14:13:55,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574696103] [2024-06-14 14:13:55,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:13:55,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:13:55,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:13:55,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:13:55,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:13:56,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-14 14:13:56,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-06-14 14:13:56,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:13:56,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-14 14:13:56,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:13:56,103 INFO L124 PetriNetUnfolderBase]: 31/104 cut-off events. [2024-06-14 14:13:56,104 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:13:56,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 104 events. 31/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 155 event pairs, 16 based on Foata normal form. 3/104 useless extension candidates. Maximal degree in co-relation 181. Up to 75 conditions per place. [2024-06-14 14:13:56,107 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 22 selfloop transitions, 2 changer transitions 0/32 dead transitions. [2024-06-14 14:13:56,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 32 transitions, 115 flow [2024-06-14 14:13:56,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:13:56,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:13:56,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2024-06-14 14:13:56,119 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4463276836158192 [2024-06-14 14:13:56,121 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 65 flow. Second operand 3 states and 79 transitions. [2024-06-14 14:13:56,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 32 transitions, 115 flow [2024-06-14 14:13:56,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 32 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:13:56,126 INFO L231 Difference]: Finished difference. Result has 37 places, 31 transitions, 72 flow [2024-06-14 14:13:56,128 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=37, PETRI_TRANSITIONS=31} [2024-06-14 14:13:56,133 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2024-06-14 14:13:56,133 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 72 flow [2024-06-14 14:13:56,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-06-14 14:13:56,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:13:56,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:13:56,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:13:56,135 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-14 14:13:56,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:13:56,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1347298442, now seen corresponding path program 1 times [2024-06-14 14:13:56,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:13:56,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823356388] [2024-06-14 14:13:56,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:13:56,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:13:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:13:56,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:13:56,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:13:56,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823356388] [2024-06-14 14:13:56,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823356388] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:13:56,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:13:56,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:13:56,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218128642] [2024-06-14 14:13:56,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:13:56,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:13:56,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:13:56,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:13:56,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:13:56,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-14 14:13:56,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 72 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-06-14 14:13:56,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:13:56,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-14 14:13:56,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:13:56,534 INFO L124 PetriNetUnfolderBase]: 23/85 cut-off events. [2024-06-14 14:13:56,534 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-06-14 14:13:56,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 85 events. 23/85 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 6 based on Foata normal form. 8/91 useless extension candidates. Maximal degree in co-relation 157. Up to 35 conditions per place. [2024-06-14 14:13:56,536 INFO L140 encePairwiseOnDemand]: 51/59 looper letters, 21 selfloop transitions, 7 changer transitions 0/36 dead transitions. [2024-06-14 14:13:56,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 36 transitions, 138 flow [2024-06-14 14:13:56,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:13:56,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:13:56,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 157 transitions. [2024-06-14 14:13:56,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3801452784503632 [2024-06-14 14:13:56,544 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 72 flow. Second operand 7 states and 157 transitions. [2024-06-14 14:13:56,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 36 transitions, 138 flow [2024-06-14 14:13:56,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 36 transitions, 134 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 14:13:56,548 INFO L231 Difference]: Finished difference. Result has 44 places, 31 transitions, 96 flow [2024-06-14 14:13:56,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=96, PETRI_PLACES=44, PETRI_TRANSITIONS=31} [2024-06-14 14:13:56,549 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 9 predicate places. [2024-06-14 14:13:56,550 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 31 transitions, 96 flow [2024-06-14 14:13:56,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-06-14 14:13:56,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:13:56,553 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] [2024-06-14 14:13:56,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 14:13:56,554 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-14 14:13:56,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:13:56,556 INFO L85 PathProgramCache]: Analyzing trace with hash -230255032, now seen corresponding path program 1 times [2024-06-14 14:13:56,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:13:56,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528950836] [2024-06-14 14:13:56,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:13:56,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:13:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:13:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:13:56,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:13:56,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528950836] [2024-06-14 14:13:56,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528950836] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:13:56,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:13:56,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 14:13:56,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142556770] [2024-06-14 14:13:56,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:13:56,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 14:13:56,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:13:56,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 14:13:56,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-14 14:13:56,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-14 14:13:56,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 31 transitions, 96 flow. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 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) [2024-06-14 14:13:56,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:13:56,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-14 14:13:56,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:13:57,033 INFO L124 PetriNetUnfolderBase]: 17/70 cut-off events. [2024-06-14 14:13:57,033 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2024-06-14 14:13:57,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 70 events. 17/70 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 63 event pairs, 5 based on Foata normal form. 7/75 useless extension candidates. Maximal degree in co-relation 136. Up to 19 conditions per place. [2024-06-14 14:13:57,034 INFO L140 encePairwiseOnDemand]: 50/59 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2024-06-14 14:13:57,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 35 transitions, 150 flow [2024-06-14 14:13:57,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:13:57,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:13:57,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2024-06-14 14:13:57,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3686440677966102 [2024-06-14 14:13:57,036 INFO L175 Difference]: Start difference. First operand has 44 places, 31 transitions, 96 flow. Second operand 8 states and 174 transitions. [2024-06-14 14:13:57,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 35 transitions, 150 flow [2024-06-14 14:13:57,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 126 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-06-14 14:13:57,037 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2024-06-14 14:13:57,038 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2024-06-14 14:13:57,038 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2024-06-14 14:13:57,039 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2024-06-14 14:13:57,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 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) [2024-06-14 14:13:57,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-14 14:13:57,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-14 14:13:57,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 14:13:57,042 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-14 14:13:57,045 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 14:13:57,045 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 14:13:57,049 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-14 14:13:57,049 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-14 14:13:57,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 02:13:57 BasicIcfg [2024-06-14 14:13:57,050 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 14:13:57,051 INFO L158 Benchmark]: Toolchain (without parser) took 3288.56ms. Allocated memory was 167.8MB in the beginning and 226.5MB in the end (delta: 58.7MB). Free memory was 95.0MB in the beginning and 143.9MB in the end (delta: -48.9MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2024-06-14 14:13:57,051 INFO L158 Benchmark]: Witness Parser took 1.01ms. Allocated memory is still 96.5MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:13:57,051 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 141.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:13:57,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 656.12ms. Allocated memory is still 167.8MB. Free memory was 95.0MB in the beginning and 118.0MB in the end (delta: -23.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-06-14 14:13:57,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.96ms. Allocated memory is still 167.8MB. Free memory was 117.0MB in the beginning and 114.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 14:13:57,052 INFO L158 Benchmark]: Boogie Preprocessor took 53.51ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 112.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 14:13:57,053 INFO L158 Benchmark]: RCFGBuilder took 783.29ms. Allocated memory is still 167.8MB. Free memory was 112.8MB in the beginning and 65.6MB in the end (delta: 47.3MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-06-14 14:13:57,053 INFO L158 Benchmark]: TraceAbstraction took 1742.82ms. Allocated memory was 167.8MB in the beginning and 226.5MB in the end (delta: 58.7MB). Free memory was 64.6MB in the beginning and 143.9MB in the end (delta: -79.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:13:57,055 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 1.01ms. Allocated memory is still 96.5MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 141.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 656.12ms. Allocated memory is still 167.8MB. Free memory was 95.0MB in the beginning and 118.0MB in the end (delta: -23.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.96ms. Allocated memory is still 167.8MB. Free memory was 117.0MB in the beginning and 114.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.51ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 112.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 783.29ms. Allocated memory is still 167.8MB. Free memory was 112.8MB in the beginning and 65.6MB in the end (delta: 47.3MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1742.82ms. Allocated memory was 167.8MB in the beginning and 226.5MB in the end (delta: 58.7MB). Free memory was 64.6MB in the beginning and 143.9MB in the end (delta: -79.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 707]: 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, 87 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: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 226 IncrementalHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 3 mSDtfsCounter, 226 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 0.8s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 349 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! [2024-06-14 14:13:57,080 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