./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/protection/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/protection/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 11:42:18,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 11:42:18,647 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 11:42:18,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 11:42:18,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 11:42:18,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 11:42:18,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 11:42:18,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 11:42:18,665 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 11:42:18,665 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 11:42:18,666 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 11:42:18,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 11:42:18,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 11:42:18,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 11:42:18,667 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 11:42:18,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 11:42:18,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 11:42:18,668 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 11:42:18,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 11:42:18,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 11:42:18,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 11:42:18,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 11:42:18,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 11:42:18,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 11:42:18,670 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 11:42:18,670 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 11:42:18,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 11:42:18,670 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 11:42:18,671 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 11:42:18,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 11:42:18,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 11:42:18,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 11:42:18,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 11:42:18,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 11:42:18,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 11:42:18,676 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 11:42:18,676 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 11:42:18,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 11:42:18,676 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 11:42:18,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 11:42:18,677 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 11:42:18,677 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 11:42:18,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 11:42:18,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 11:42:18,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 11:42:18,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 11:42:18,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 11:42:18,895 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 11:42:18,896 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 11:42:18,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/13-privatized_24-multiple-protecting_true.yml/witness.yml [2024-06-14 11:42:18,998 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 11:42:18,998 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 11:42:18,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2024-06-14 11:42:20,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 11:42:20,303 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 11:42:20,303 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2024-06-14 11:42:20,314 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/475a0d3aa/26153f8567de444c9f34dcbaaa13c896/FLAGaa1ce6c36 [2024-06-14 11:42:20,657 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/475a0d3aa/26153f8567de444c9f34dcbaaa13c896 [2024-06-14 11:42:20,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 11:42:20,659 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 11:42:20,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 11:42:20,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 11:42:20,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 11:42:20,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:42:18" (1/2) ... [2024-06-14 11:42:20,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@271e219a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 11:42:20, skipping insertion in model container [2024-06-14 11:42:20,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:42:18" (1/2) ... [2024-06-14 11:42:20,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36aa5926 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 11:42:20, skipping insertion in model container [2024-06-14 11:42:20,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 11:42:20" (2/2) ... [2024-06-14 11:42:20,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@271e219a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:20, skipping insertion in model container [2024-06-14 11:42:20,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 11:42:20" (2/2) ... [2024-06-14 11:42:20,667 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 11:42:20,717 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 11:42:20,718 INFO L97 edCorrectnessWitness]: Location invariant before [L707-L707] (! multithreaded || 0 <= g2) && (! multithreaded || 0 <= g1) [2024-06-14 11:42:20,718 INFO L103 edCorrectnessWitness]: ghost_variable __global_lock_locked = 0 [2024-06-14 11:42:20,718 INFO L103 edCorrectnessWitness]: ghost_variable mutex1_locked = 0 [2024-06-14 11:42:20,718 INFO L103 edCorrectnessWitness]: ghost_variable mutex2_locked = 0 [2024-06-14 11:42:20,719 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 11:42:20,719 INFO L106 edCorrectnessWitness]: ghost_update [L706-L706] multithreaded = 1; [2024-06-14 11:42:20,719 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] __global_lock_locked = 0; [2024-06-14 11:42:20,719 INFO L106 edCorrectnessWitness]: ghost_update [L718-L718] mutex2_locked = 0; [2024-06-14 11:42:20,719 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] __global_lock_locked = 0; [2024-06-14 11:42:20,719 INFO L106 edCorrectnessWitness]: ghost_update [L711-L711] mutex2_locked = 1; [2024-06-14 11:42:20,719 INFO L106 edCorrectnessWitness]: ghost_update [L721-L721] __global_lock_locked = 0; [2024-06-14 11:42:20,719 INFO L106 edCorrectnessWitness]: ghost_update [L715-L715] __global_lock_locked = 1; [2024-06-14 11:42:20,720 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] __global_lock_locked = 1; [2024-06-14 11:42:20,720 INFO L106 edCorrectnessWitness]: ghost_update [L714-L714] __global_lock_locked = 0; [2024-06-14 11:42:20,720 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] mutex2_locked = 0; [2024-06-14 11:42:20,720 INFO L106 edCorrectnessWitness]: ghost_update [L708-L708] __global_lock_locked = 1; [2024-06-14 11:42:20,720 INFO L106 edCorrectnessWitness]: ghost_update [L707-L707] mutex1_locked = 1; [2024-06-14 11:42:20,720 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] mutex1_locked = 1; [2024-06-14 11:42:20,720 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] __global_lock_locked = 1; [2024-06-14 11:42:20,720 INFO L106 edCorrectnessWitness]: ghost_update [L722-L722] mutex1_locked = 0; [2024-06-14 11:42:20,721 INFO L106 edCorrectnessWitness]: ghost_update [L694-L694] mutex2_locked = 1; [2024-06-14 11:42:20,721 INFO L106 edCorrectnessWitness]: ghost_update [L717-L717] __global_lock_locked = 0; [2024-06-14 11:42:20,721 INFO L106 edCorrectnessWitness]: ghost_update [L712-L712] __global_lock_locked = 1; [2024-06-14 11:42:20,721 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] __global_lock_locked = 0; [2024-06-14 11:42:20,721 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] __global_lock_locked = 1; [2024-06-14 11:42:20,721 INFO L106 edCorrectnessWitness]: ghost_update [L695-L695] __global_lock_locked = 1; [2024-06-14 11:42:20,721 INFO L106 edCorrectnessWitness]: ghost_update [L693-L693] mutex1_locked = 0; [2024-06-14 11:42:20,722 INFO L106 edCorrectnessWitness]: ghost_update [L719-L719] __global_lock_locked = 1; [2024-06-14 11:42:20,722 INFO L106 edCorrectnessWitness]: ghost_update [L710-L710] __global_lock_locked = 0; [2024-06-14 11:42:20,722 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] __global_lock_locked = 0; [2024-06-14 11:42:20,750 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 11:42:21,035 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 11:42:21,044 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 11:42:21,112 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 11:42:21,137 INFO L206 MainTranslator]: Completed translation [2024-06-14 11:42:21,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:21 WrapperNode [2024-06-14 11:42:21,137 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 11:42:21,138 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 11:42:21,138 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 11:42:21,138 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 11:42:21,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:21" (1/1) ... [2024-06-14 11:42:21,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:21" (1/1) ... [2024-06-14 11:42:21,189 INFO L138 Inliner]: procedures = 162, calls = 54, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 128 [2024-06-14 11:42:21,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 11:42:21,189 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 11:42:21,189 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 11:42:21,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 11:42:21,198 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:21" (1/1) ... [2024-06-14 11:42:21,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:21" (1/1) ... [2024-06-14 11:42:21,200 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:21" (1/1) ... [2024-06-14 11:42:21,215 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 11:42:21,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:21" (1/1) ... [2024-06-14 11:42:21,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:21" (1/1) ... [2024-06-14 11:42:21,220 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:21" (1/1) ... [2024-06-14 11:42:21,221 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:21" (1/1) ... [2024-06-14 11:42:21,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:21" (1/1) ... [2024-06-14 11:42:21,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:21" (1/1) ... [2024-06-14 11:42:21,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 11:42:21,226 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 11:42:21,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 11:42:21,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 11:42:21,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:21" (1/1) ... [2024-06-14 11:42:21,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 11:42:21,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 11:42:21,261 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 11:42:21,271 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 11:42:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-14 11:42:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 11:42:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-14 11:42:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-14 11:42:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 11:42:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-14 11:42:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-14 11:42:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-06-14 11:42:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-14 11:42:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 11:42:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 11:42:21,294 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 11:42:21,400 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 11:42:21,402 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 11:42:21,599 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 11:42:21,599 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 11:42:21,785 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 11:42:21,785 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-14 11:42:21,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 11:42:21 BoogieIcfgContainer [2024-06-14 11:42:21,786 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 11:42:21,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 11:42:21,789 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 11:42:21,791 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 11:42:21,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:42:18" (1/4) ... [2024-06-14 11:42:21,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71af03f2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 11:42:21, skipping insertion in model container [2024-06-14 11:42:21,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 11:42:20" (2/4) ... [2024-06-14 11:42:21,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71af03f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 11:42:21, skipping insertion in model container [2024-06-14 11:42:21,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:42:21" (3/4) ... [2024-06-14 11:42:21,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71af03f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 11:42:21, skipping insertion in model container [2024-06-14 11:42:21,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 11:42:21" (4/4) ... [2024-06-14 11:42:21,795 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2024-06-14 11:42:21,808 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 11:42:21,808 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-14 11:42:21,809 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 11:42:21,848 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-14 11:42:21,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 59 transitions, 125 flow [2024-06-14 11:42:21,901 INFO L124 PetriNetUnfolderBase]: 0/58 cut-off events. [2024-06-14 11:42:21,901 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-14 11:42:21,903 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 11:42:21,903 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 59 transitions, 125 flow [2024-06-14 11:42:21,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 31 transitions, 65 flow [2024-06-14 11:42:21,918 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 11:42:21,927 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;@5ff96031, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 11:42:21,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-14 11:42:21,931 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 11:42:21,931 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-14 11:42:21,931 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 11:42:21,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:42:21,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 11:42:21,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-14 11:42:21,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:42:21,937 INFO L85 PathProgramCache]: Analyzing trace with hash 937057090, now seen corresponding path program 1 times [2024-06-14 11:42:21,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:42:21,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883080076] [2024-06-14 11:42:21,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:42:21,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:42:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:42:22,199 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 11:42:22,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:42:22,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883080076] [2024-06-14 11:42:22,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883080076] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:42:22,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:42:22,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 11:42:22,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787775430] [2024-06-14 11:42:22,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:42:22,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 11:42:22,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:42:22,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 11:42:22,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 11:42:22,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-14 11:42:22,241 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 11:42:22,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:42:22,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-14 11:42:22,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:42:22,313 INFO L124 PetriNetUnfolderBase]: 31/104 cut-off events. [2024-06-14 11:42:22,314 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 11:42:22,315 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 11:42:22,316 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 22 selfloop transitions, 2 changer transitions 0/32 dead transitions. [2024-06-14 11:42:22,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 32 transitions, 115 flow [2024-06-14 11:42:22,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 11:42:22,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 11:42:22,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2024-06-14 11:42:22,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4463276836158192 [2024-06-14 11:42:22,329 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 65 flow. Second operand 3 states and 79 transitions. [2024-06-14 11:42:22,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 32 transitions, 115 flow [2024-06-14 11:42:22,331 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 11:42:22,334 INFO L231 Difference]: Finished difference. Result has 37 places, 31 transitions, 72 flow [2024-06-14 11:42:22,335 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 11:42:22,338 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2024-06-14 11:42:22,339 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 72 flow [2024-06-14 11:42:22,339 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 11:42:22,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:42:22,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:42:22,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 11:42:22,339 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-14 11:42:22,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:42:22,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1347298442, now seen corresponding path program 1 times [2024-06-14 11:42:22,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:42:22,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724713989] [2024-06-14 11:42:22,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:42:22,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:42:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:42:22,440 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 11:42:22,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:42:22,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724713989] [2024-06-14 11:42:22,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724713989] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:42:22,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:42:22,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 11:42:22,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236670930] [2024-06-14 11:42:22,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:42:22,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 11:42:22,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:42:22,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 11:42:22,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-14 11:42:22,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-14 11:42:22,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 11:42:22,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:42:22,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-14 11:42:22,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:42:22,533 INFO L124 PetriNetUnfolderBase]: 28/95 cut-off events. [2024-06-14 11:42:22,535 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-06-14 11:42:22,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 95 events. 28/95 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 135 event pairs, 13 based on Foata normal form. 3/93 useless extension candidates. Maximal degree in co-relation 182. Up to 60 conditions per place. [2024-06-14 11:42:22,536 INFO L140 encePairwiseOnDemand]: 55/59 looper letters, 22 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2024-06-14 11:42:22,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 33 transitions, 126 flow [2024-06-14 11:42:22,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 11:42:22,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 11:42:22,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2024-06-14 11:42:22,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4152542372881356 [2024-06-14 11:42:22,539 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 72 flow. Second operand 4 states and 98 transitions. [2024-06-14 11:42:22,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 33 transitions, 126 flow [2024-06-14 11:42:22,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 33 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 11:42:22,543 INFO L231 Difference]: Finished difference. Result has 39 places, 31 transitions, 78 flow [2024-06-14 11:42:22,544 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=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2024-06-14 11:42:22,545 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2024-06-14 11:42:22,545 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 78 flow [2024-06-14 11:42:22,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 11:42:22,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:42:22,548 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:42:22,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 11:42:22,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-14 11:42:22,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:42:22,549 INFO L85 PathProgramCache]: Analyzing trace with hash 2146328328, now seen corresponding path program 1 times [2024-06-14 11:42:22,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:42:22,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782720617] [2024-06-14 11:42:22,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:42:22,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:42:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:42:22,689 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 11:42:22,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:42:22,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782720617] [2024-06-14 11:42:22,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782720617] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:42:22,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:42:22,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 11:42:22,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975532709] [2024-06-14 11:42:22,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:42:22,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 11:42:22,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:42:22,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 11:42:22,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-14 11:42:22,699 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-14 11:42:22,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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 11:42:22,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:42:22,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-14 11:42:22,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:42:22,757 INFO L124 PetriNetUnfolderBase]: 23/84 cut-off events. [2024-06-14 11:42:22,757 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-06-14 11:42:22,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 84 events. 23/84 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 100 event pairs, 8 based on Foata normal form. 5/86 useless extension candidates. Maximal degree in co-relation 167. Up to 35 conditions per place. [2024-06-14 11:42:22,758 INFO L140 encePairwiseOnDemand]: 54/59 looper letters, 22 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2024-06-14 11:42:22,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 34 transitions, 136 flow [2024-06-14 11:42:22,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 11:42:22,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 11:42:22,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2024-06-14 11:42:22,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39661016949152544 [2024-06-14 11:42:22,760 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 78 flow. Second operand 5 states and 117 transitions. [2024-06-14 11:42:22,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 34 transitions, 136 flow [2024-06-14 11:42:22,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 130 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-14 11:42:22,761 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 84 flow [2024-06-14 11:42:22,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=84, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2024-06-14 11:42:22,762 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2024-06-14 11:42:22,762 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 84 flow [2024-06-14 11:42:22,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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 11:42:22,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:42:22,763 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 11:42:22,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 11:42:22,763 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-14 11:42:22,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:42:22,764 INFO L85 PathProgramCache]: Analyzing trace with hash -306363388, now seen corresponding path program 1 times [2024-06-14 11:42:22,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:42:22,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69570055] [2024-06-14 11:42:22,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:42:22,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:42:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:42:22,875 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 11:42:22,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:42:22,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69570055] [2024-06-14 11:42:22,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69570055] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:42:22,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:42:22,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 11:42:22,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830716857] [2024-06-14 11:42:22,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:42:22,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 11:42:22,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:42:22,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 11:42:22,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-14 11:42:22,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-14 11:42:22,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 84 flow. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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 11:42:22,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:42:22,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-14 11:42:22,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:42:22,933 INFO L124 PetriNetUnfolderBase]: 20/77 cut-off events. [2024-06-14 11:42:22,934 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-06-14 11:42:22,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 77 events. 20/77 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 5 based on Foata normal form. 3/77 useless extension candidates. Maximal degree in co-relation 156. Up to 20 conditions per place. [2024-06-14 11:42:22,934 INFO L140 encePairwiseOnDemand]: 53/59 looper letters, 22 selfloop transitions, 5 changer transitions 0/35 dead transitions. [2024-06-14 11:42:22,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 35 transitions, 146 flow [2024-06-14 11:42:22,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 11:42:22,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 11:42:22,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 136 transitions. [2024-06-14 11:42:22,936 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.384180790960452 [2024-06-14 11:42:22,937 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 84 flow. Second operand 6 states and 136 transitions. [2024-06-14 11:42:22,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 35 transitions, 146 flow [2024-06-14 11:42:22,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 35 transitions, 138 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-14 11:42:22,940 INFO L231 Difference]: Finished difference. Result has 43 places, 31 transitions, 90 flow [2024-06-14 11:42:22,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=90, PETRI_PLACES=43, PETRI_TRANSITIONS=31} [2024-06-14 11:42:22,941 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2024-06-14 11:42:22,941 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 31 transitions, 90 flow [2024-06-14 11:42:22,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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 11:42:22,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:42:22,942 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:42:22,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 11:42:22,942 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-14 11:42:22,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:42:22,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1977880958, now seen corresponding path program 1 times [2024-06-14 11:42:22,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:42:22,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95731667] [2024-06-14 11:42:22,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:42:22,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:42:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:42:23,108 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 11:42:23,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:42:23,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95731667] [2024-06-14 11:42:23,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95731667] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:42:23,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:42:23,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 11:42:23,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966634394] [2024-06-14 11:42:23,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:42:23,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 11:42:23,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:42:23,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 11:42:23,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-06-14 11:42:23,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-14 11:42:23,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 31 transitions, 90 flow. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 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 11:42:23,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:42:23,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-14 11:42:23,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:42:23,169 INFO L124 PetriNetUnfolderBase]: 17/70 cut-off events. [2024-06-14 11:42:23,169 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-06-14 11:42:23,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 70 events. 17/70 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 63 event pairs, 2 based on Foata normal form. 4/72 useless extension candidates. Maximal degree in co-relation 134. Up to 18 conditions per place. [2024-06-14 11:42:23,171 INFO L140 encePairwiseOnDemand]: 53/59 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2024-06-14 11:42:23,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 34 transitions, 140 flow [2024-06-14 11:42:23,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 11:42:23,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 11:42:23,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 153 transitions. [2024-06-14 11:42:23,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3704600484261501 [2024-06-14 11:42:23,173 INFO L175 Difference]: Start difference. First operand has 43 places, 31 transitions, 90 flow. Second operand 7 states and 153 transitions. [2024-06-14 11:42:23,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 34 transitions, 140 flow [2024-06-14 11:42:23,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 122 flow, removed 0 selfloop flow, removed 9 redundant places. [2024-06-14 11:42:23,174 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2024-06-14 11:42:23,174 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=7, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2024-06-14 11:42:23,177 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2024-06-14 11:42:23,177 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2024-06-14 11:42:23,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 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 11:42:23,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-14 11:42:23,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-14 11:42:23,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-14 11:42:23,181 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-06-14 11:42:23,183 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 11:42:23,184 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 11:42:23,187 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-14 11:42:23,187 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-14 11:42:23,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 11:42:23 BasicIcfg [2024-06-14 11:42:23,193 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 11:42:23,194 INFO L158 Benchmark]: Toolchain (without parser) took 2534.82ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 77.0MB in the beginning and 111.5MB in the end (delta: -34.5MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2024-06-14 11:42:23,197 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 11:42:23,197 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory is still 60.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 11:42:23,200 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.33ms. Allocated memory is still 130.0MB. Free memory was 77.0MB in the beginning and 87.3MB in the end (delta: -10.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-14 11:42:23,201 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.79ms. Allocated memory is still 130.0MB. Free memory was 87.3MB in the beginning and 85.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 11:42:23,201 INFO L158 Benchmark]: Boogie Preprocessor took 36.11ms. Allocated memory is still 130.0MB. Free memory was 85.2MB in the beginning and 82.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 11:42:23,201 INFO L158 Benchmark]: RCFGBuilder took 559.93ms. Allocated memory is still 130.0MB. Free memory was 82.7MB in the beginning and 97.0MB in the end (delta: -14.4MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. [2024-06-14 11:42:23,202 INFO L158 Benchmark]: TraceAbstraction took 1404.13ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 96.1MB in the beginning and 111.5MB in the end (delta: -15.3MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2024-06-14 11:42:23,203 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 0.20ms. Allocated memory is still 100.7MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory is still 60.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 478.33ms. Allocated memory is still 130.0MB. Free memory was 77.0MB in the beginning and 87.3MB in the end (delta: -10.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.79ms. Allocated memory is still 130.0MB. Free memory was 87.3MB in the beginning and 85.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.11ms. Allocated memory is still 130.0MB. Free memory was 85.2MB in the beginning and 82.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 559.93ms. Allocated memory is still 130.0MB. Free memory was 82.7MB in the beginning and 97.0MB in the end (delta: -14.4MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1404.13ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 96.1MB in the beginning and 111.5MB in the end (delta: -15.3MB). Peak memory consumption was 29.6MB. 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: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 367 IncrementalHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 4 mSDtfsCounter, 367 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=4, InterpolantAutomatonStates: 25, 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, 0.6s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 11:42:23,223 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