./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-05-07_14-17-48.files/protection/13-privatized_34-traces-minepp-L-needs-to-be-um_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b44c8288 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i ./goblint.2024-05-07_14-17-48.files/protection/13-privatized_34-traces-minepp-L-needs-to-be-um_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 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-b44c828-m [2024-05-12 12:52:35,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-12 12:52:35,847 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-05-12 12:52:35,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-12 12:52:35,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-12 12:52:35,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-12 12:52:35,891 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-12 12:52:35,891 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-12 12:52:35,892 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-05-12 12:52:35,896 INFO L153 SettingsManager]: * Use memory slicer=true [2024-05-12 12:52:35,896 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-12 12:52:35,896 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-12 12:52:35,897 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-12 12:52:35,898 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-12 12:52:35,899 INFO L153 SettingsManager]: * Use SBE=true [2024-05-12 12:52:35,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-12 12:52:35,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-12 12:52:35,900 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-12 12:52:35,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-12 12:52:35,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-12 12:52:35,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-12 12:52:35,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-12 12:52:35,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-12 12:52:35,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-12 12:52:35,901 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-05-12 12:52:35,902 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-12 12:52:35,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-12 12:52:35,902 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-12 12:52:35,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-12 12:52:35,903 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-12 12:52:35,904 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-05-12 12:52:35,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-12 12:52:35,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 12:52:35,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-12 12:52:35,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-12 12:52:35,905 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-12 12:52:35,905 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-12 12:52:35,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-12 12:52:35,905 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-12 12:52:35,906 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-05-12 12:52:35,906 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-12 12:52:35,906 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-05-12 12:52:35,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-05-12 12:52:35,907 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-05-12 12:52:36,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-12 12:52:36,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-12 12:52:36,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-12 12:52:36,158 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-05-12 12:52:36,159 INFO L274 PluginConnector]: Witness Parser initialized [2024-05-12 12:52:36,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-07_14-17-48.files/protection/13-privatized_34-traces-minepp-L-needs-to-be-um_true.yml/witness.yml [2024-05-12 12:52:36,279 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-12 12:52:36,283 INFO L274 PluginConnector]: CDTParser initialized [2024-05-12 12:52:36,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2024-05-12 12:52:37,232 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-12 12:52:37,416 INFO L384 CDTParser]: Found 1 translation units. [2024-05-12 12:52:37,416 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2024-05-12 12:52:37,426 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11e8d1a02/8cb53c2d9e3040b8b6baa3376fb0f2a3/FLAGa14e1ba0f [2024-05-12 12:52:37,436 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11e8d1a02/8cb53c2d9e3040b8b6baa3376fb0f2a3 [2024-05-12 12:52:37,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-12 12:52:37,439 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-12 12:52:37,441 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-12 12:52:37,441 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-12 12:52:37,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-12 12:52:37,448 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 12:52:36" (1/2) ... [2024-05-12 12:52:37,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c6dc2fe and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:52:37, skipping insertion in model container [2024-05-12 12:52:37,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 12:52:36" (1/2) ... [2024-05-12 12:52:37,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@759fd915 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:52:37, skipping insertion in model container [2024-05-12 12:52:37,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 12:52:37" (2/2) ... [2024-05-12 12:52:37,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c6dc2fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37, skipping insertion in model container [2024-05-12 12:52:37,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 12:52:37" (2/2) ... [2024-05-12 12:52:37,451 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-05-12 12:52:37,487 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-05-12 12:52:37,488 INFO L97 edCorrectnessWitness]: Location invariant before [L702-L702] ! multithreaded || ((((((0 <= g && 15 <= g) && g <= 42) && g <= 127) && g % 27 == 15) && g != 0) && (g == 15 || g == 42)) [2024-05-12 12:52:37,488 INFO L103 edCorrectnessWitness]: ghost_variable C_locked = 0 [2024-05-12 12:52:37,488 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-05-12 12:52:37,488 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-05-12 12:52:37,488 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-05-12 12:52:37,488 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] C_locked = 1; [2024-05-12 12:52:37,489 INFO L106 edCorrectnessWitness]: ghost_update [L704-L704] A_locked = 1; [2024-05-12 12:52:37,489 INFO L106 edCorrectnessWitness]: ghost_update [L705-L705] C_locked = 1; [2024-05-12 12:52:37,489 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] multithreaded = 1; [2024-05-12 12:52:37,489 INFO L106 edCorrectnessWitness]: ghost_update [L695-L695] B_locked = 0; [2024-05-12 12:52:37,489 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] C_locked = 1; [2024-05-12 12:52:37,489 INFO L106 edCorrectnessWitness]: ghost_update [L709-L709] B_locked = 1; [2024-05-12 12:52:37,489 INFO L106 edCorrectnessWitness]: ghost_update [L710-L710] C_locked = 1; [2024-05-12 12:52:37,490 INFO L106 edCorrectnessWitness]: ghost_update [L694-L694] C_locked = 0; [2024-05-12 12:52:37,490 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] A_locked = 0; [2024-05-12 12:52:37,490 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] A_locked = 1; [2024-05-12 12:52:37,490 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] C_locked = 0; [2024-05-12 12:52:37,490 INFO L106 edCorrectnessWitness]: ghost_update [L711-L711] B_locked = 0; [2024-05-12 12:52:37,490 INFO L106 edCorrectnessWitness]: ghost_update [L706-L706] A_locked = 0; [2024-05-12 12:52:37,490 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] B_locked = 1; [2024-05-12 12:52:37,525 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-12 12:52:37,664 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i[1107,1120] [2024-05-12 12:52:37,799 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 12:52:37,810 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 12:52:37,835 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i[1107,1120] 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 [2024-05-12 12:52:37,895 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 12:52:37,934 INFO L206 MainTranslator]: Completed translation [2024-05-12 12:52:37,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37 WrapperNode [2024-05-12 12:52:37,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-12 12:52:37,936 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-12 12:52:37,936 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-12 12:52:37,936 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-12 12:52:37,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37" (1/1) ... [2024-05-12 12:52:37,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37" (1/1) ... [2024-05-12 12:52:37,992 INFO L138 Inliner]: procedures = 164, calls = 44, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2024-05-12 12:52:37,992 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-12 12:52:37,993 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-12 12:52:37,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-12 12:52:37,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-12 12:52:38,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37" (1/1) ... [2024-05-12 12:52:38,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37" (1/1) ... [2024-05-12 12:52:38,011 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37" (1/1) ... [2024-05-12 12:52:38,032 INFO L175 MemorySlicer]: Split 18 memory accesses to 5 slices as follows [2, 5, 5, 5, 1]. 28 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-05-12 12:52:38,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37" (1/1) ... [2024-05-12 12:52:38,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37" (1/1) ... [2024-05-12 12:52:38,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37" (1/1) ... [2024-05-12 12:52:38,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37" (1/1) ... [2024-05-12 12:52:38,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37" (1/1) ... [2024-05-12 12:52:38,057 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37" (1/1) ... [2024-05-12 12:52:38,060 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-12 12:52:38,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-12 12:52:38,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-12 12:52:38,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-12 12:52:38,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37" (1/1) ... [2024-05-12 12:52:38,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 12:52:38,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-05-12 12:52:38,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-05-12 12:52:38,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-05-12 12:52:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-05-12 12:52:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-05-12 12:52:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-05-12 12:52:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-05-12 12:52:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-05-12 12:52:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-12 12:52:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-12 12:52:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-12 12:52:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-05-12 12:52:38,113 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-05-12 12:52:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-12 12:52:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-05-12 12:52:38,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-05-12 12:52:38,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-05-12 12:52:38,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-05-12 12:52:38,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-05-12 12:52:38,114 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-12 12:52:38,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-12 12:52:38,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-12 12:52:38,116 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-12 12:52:38,229 INFO L244 CfgBuilder]: Building ICFG [2024-05-12 12:52:38,230 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-12 12:52:38,402 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-05-12 12:52:38,402 INFO L293 CfgBuilder]: Performing block encoding [2024-05-12 12:52:38,501 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-12 12:52:38,502 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-12 12:52:38,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 12:52:38 BoogieIcfgContainer [2024-05-12 12:52:38,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-12 12:52:38,504 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-12 12:52:38,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-12 12:52:38,506 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-12 12:52:38,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 12:52:36" (1/4) ... [2024-05-12 12:52:38,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c81f7f3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 12:52:38, skipping insertion in model container [2024-05-12 12:52:38,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.05 12:52:37" (2/4) ... [2024-05-12 12:52:38,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c81f7f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 12:52:38, skipping insertion in model container [2024-05-12 12:52:38,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:52:37" (3/4) ... [2024-05-12 12:52:38,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c81f7f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 12:52:38, skipping insertion in model container [2024-05-12 12:52:38,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 12:52:38" (4/4) ... [2024-05-12 12:52:38,509 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2024-05-12 12:52:38,521 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-12 12:52:38,522 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-05-12 12:52:38,522 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-12 12:52:38,546 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-05-12 12:52:38,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 45 transitions, 94 flow [2024-05-12 12:52:38,599 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2024-05-12 12:52:38,599 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 12:52:38,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 44 events. 2/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2024-05-12 12:52:38,602 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 45 transitions, 94 flow [2024-05-12 12:52:38,604 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 41 transitions, 85 flow [2024-05-12 12:52:38,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-12 12:52:38,616 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;@1693a8ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-12 12:52:38,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-05-12 12:52:38,623 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-05-12 12:52:38,623 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-05-12 12:52:38,623 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 12:52:38,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:52:38,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-05-12 12:52:38,625 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-12 12:52:38,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:52:38,630 INFO L85 PathProgramCache]: Analyzing trace with hash -39727033, now seen corresponding path program 1 times [2024-05-12 12:52:38,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:52:38,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82418680] [2024-05-12 12:52:38,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:52:38,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:52:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:52:39,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:52:39,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:52:39,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82418680] [2024-05-12 12:52:39,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82418680] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:52:39,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:52:39,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-05-12 12:52:39,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951759758] [2024-05-12 12:52:39,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:52:39,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 12:52:39,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:52:39,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 12:52:39,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 12:52:39,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2024-05-12 12:52:39,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 41 transitions, 85 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) [2024-05-12 12:52:39,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:52:39,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2024-05-12 12:52:39,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:52:39,189 INFO L124 PetriNetUnfolderBase]: 105/307 cut-off events. [2024-05-12 12:52:39,190 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 12:52:39,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 307 events. 105/307 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1519 event pairs, 74 based on Foata normal form. 0/297 useless extension candidates. Maximal degree in co-relation 531. Up to 170 conditions per place. [2024-05-12 12:52:39,194 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 31 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2024-05-12 12:52:39,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 50 transitions, 171 flow [2024-05-12 12:52:39,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 12:52:39,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 12:52:39,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-05-12 12:52:39,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6592592592592592 [2024-05-12 12:52:39,204 INFO L175 Difference]: Start difference. First operand has 44 places, 41 transitions, 85 flow. Second operand 3 states and 89 transitions. [2024-05-12 12:52:39,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 50 transitions, 171 flow [2024-05-12 12:52:39,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 50 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-05-12 12:52:39,209 INFO L231 Difference]: Finished difference. Result has 46 places, 41 transitions, 95 flow [2024-05-12 12:52:39,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=46, PETRI_TRANSITIONS=41} [2024-05-12 12:52:39,215 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 2 predicate places. [2024-05-12 12:52:39,215 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 95 flow [2024-05-12 12:52:39,215 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) [2024-05-12 12:52:39,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:52:39,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 12:52:39,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-12 12:52:39,216 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-12 12:52:39,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:52:39,217 INFO L85 PathProgramCache]: Analyzing trace with hash 641804891, now seen corresponding path program 1 times [2024-05-12 12:52:39,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:52:39,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173507383] [2024-05-12 12:52:39,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:52:39,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:52:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:52:39,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:52:39,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:52:39,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173507383] [2024-05-12 12:52:39,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173507383] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:52:39,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:52:39,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 12:52:39,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403000498] [2024-05-12 12:52:39,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:52:39,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 12:52:39,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:52:39,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 12:52:39,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 12:52:39,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2024-05-12 12:52:39,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:52:39,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:52:39,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2024-05-12 12:52:39,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:52:39,482 INFO L124 PetriNetUnfolderBase]: 103/295 cut-off events. [2024-05-12 12:52:39,482 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-05-12 12:52:39,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 295 events. 103/295 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1426 event pairs, 72 based on Foata normal form. 3/292 useless extension candidates. Maximal degree in co-relation 539. Up to 166 conditions per place. [2024-05-12 12:52:39,486 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 31 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2024-05-12 12:52:39,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 49 transitions, 175 flow [2024-05-12 12:52:39,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 12:52:39,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 12:52:39,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-05-12 12:52:39,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6518518518518519 [2024-05-12 12:52:39,490 INFO L175 Difference]: Start difference. First operand has 46 places, 41 transitions, 95 flow. Second operand 3 states and 88 transitions. [2024-05-12 12:52:39,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 49 transitions, 175 flow [2024-05-12 12:52:39,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 49 transitions, 166 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-05-12 12:52:39,493 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 86 flow [2024-05-12 12:52:39,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2024-05-12 12:52:39,493 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places. [2024-05-12 12:52:39,494 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 86 flow [2024-05-12 12:52:39,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:52:39,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:52:39,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 12:52:39,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-12 12:52:39,494 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-12 12:52:39,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:52:39,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1974411291, now seen corresponding path program 1 times [2024-05-12 12:52:39,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:52:39,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089475622] [2024-05-12 12:52:39,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:52:39,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:52:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:52:39,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:52:39,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:52:39,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089475622] [2024-05-12 12:52:39,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089475622] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:52:39,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:52:39,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-12 12:52:39,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12582981] [2024-05-12 12:52:39,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:52:39,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-12 12:52:39,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:52:39,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-12 12:52:39,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-05-12 12:52:39,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 45 [2024-05-12 12:52:39,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:52:39,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:52:39,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 45 [2024-05-12 12:52:39,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:52:39,708 INFO L124 PetriNetUnfolderBase]: 109/314 cut-off events. [2024-05-12 12:52:39,708 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-05-12 12:52:39,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 314 events. 109/314 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1497 event pairs, 68 based on Foata normal form. 12/320 useless extension candidates. Maximal degree in co-relation 572. Up to 163 conditions per place. [2024-05-12 12:52:39,709 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 31 selfloop transitions, 3 changer transitions 12/61 dead transitions. [2024-05-12 12:52:39,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 61 transitions, 224 flow [2024-05-12 12:52:39,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 12:52:39,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 12:52:39,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-05-12 12:52:39,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5688888888888889 [2024-05-12 12:52:39,712 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 86 flow. Second operand 5 states and 128 transitions. [2024-05-12 12:52:39,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 61 transitions, 224 flow [2024-05-12 12:52:39,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 61 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 12:52:39,714 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 97 flow [2024-05-12 12:52:39,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=97, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2024-05-12 12:52:39,715 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 5 predicate places. [2024-05-12 12:52:39,715 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 97 flow [2024-05-12 12:52:39,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:52:39,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:52:39,715 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] [2024-05-12 12:52:39,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-12 12:52:39,715 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-12 12:52:39,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:52:39,716 INFO L85 PathProgramCache]: Analyzing trace with hash -701955465, now seen corresponding path program 1 times [2024-05-12 12:52:39,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:52:39,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166637528] [2024-05-12 12:52:39,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:52:39,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:52:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:52:39,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:52:39,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:52:39,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166637528] [2024-05-12 12:52:39,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166637528] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:52:39,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:52:39,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-12 12:52:39,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914829794] [2024-05-12 12:52:39,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:52:39,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-12 12:52:39,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:52:39,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-12 12:52:39,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-05-12 12:52:39,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-05-12 12:52:39,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:52:39,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:52:39,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-05-12 12:52:39,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:52:39,959 INFO L124 PetriNetUnfolderBase]: 71/265 cut-off events. [2024-05-12 12:52:39,960 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-05-12 12:52:39,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 265 events. 71/265 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1250 event pairs, 36 based on Foata normal form. 15/268 useless extension candidates. Maximal degree in co-relation 474. Up to 107 conditions per place. [2024-05-12 12:52:39,961 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 23 selfloop transitions, 8 changer transitions 5/52 dead transitions. [2024-05-12 12:52:39,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 52 transitions, 195 flow [2024-05-12 12:52:39,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-12 12:52:39,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-05-12 12:52:39,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-05-12 12:52:39,962 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2024-05-12 12:52:39,962 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 97 flow. Second operand 4 states and 116 transitions. [2024-05-12 12:52:39,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 52 transitions, 195 flow [2024-05-12 12:52:39,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 52 transitions, 185 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-05-12 12:52:39,964 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 112 flow [2024-05-12 12:52:39,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2024-05-12 12:52:39,964 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 3 predicate places. [2024-05-12 12:52:39,965 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 112 flow [2024-05-12 12:52:39,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:52:39,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:52:39,965 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] [2024-05-12 12:52:39,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-12 12:52:39,965 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-12 12:52:39,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:52:39,966 INFO L85 PathProgramCache]: Analyzing trace with hash -942427917, now seen corresponding path program 1 times [2024-05-12 12:52:39,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:52:39,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935638656] [2024-05-12 12:52:39,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:52:39,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:52:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:52:40,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:52:40,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:52:40,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935638656] [2024-05-12 12:52:40,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935638656] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:52:40,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:52:40,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-12 12:52:40,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142060036] [2024-05-12 12:52:40,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:52:40,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 12:52:40,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:52:40,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 12:52:40,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 12:52:40,011 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-05-12 12:52:40,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:52:40,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:52:40,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-05-12 12:52:40,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:52:40,070 INFO L124 PetriNetUnfolderBase]: 63/252 cut-off events. [2024-05-12 12:52:40,070 INFO L125 PetriNetUnfolderBase]: For 107/107 co-relation queries the response was YES. [2024-05-12 12:52:40,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 252 events. 63/252 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1150 event pairs, 36 based on Foata normal form. 5/251 useless extension candidates. Maximal degree in co-relation 516. Up to 127 conditions per place. [2024-05-12 12:52:40,071 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 25 selfloop transitions, 4 changer transitions 10/55 dead transitions. [2024-05-12 12:52:40,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 55 transitions, 240 flow [2024-05-12 12:52:40,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 12:52:40,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 12:52:40,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-05-12 12:52:40,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.725925925925926 [2024-05-12 12:52:40,072 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 112 flow. Second operand 3 states and 98 transitions. [2024-05-12 12:52:40,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 55 transitions, 240 flow [2024-05-12 12:52:40,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 55 transitions, 227 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 12:52:40,074 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 124 flow [2024-05-12 12:52:40,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2024-05-12 12:52:40,075 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 4 predicate places. [2024-05-12 12:52:40,075 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 124 flow [2024-05-12 12:52:40,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:52:40,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:52:40,075 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] [2024-05-12 12:52:40,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-12 12:52:40,076 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-12 12:52:40,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:52:40,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1391641687, now seen corresponding path program 2 times [2024-05-12 12:52:40,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:52:40,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806952148] [2024-05-12 12:52:40,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:52:40,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:52:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:52:40,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:52:40,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:52:40,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806952148] [2024-05-12 12:52:40,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806952148] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:52:40,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:52:40,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 12:52:40,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953905220] [2024-05-12 12:52:40,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:52:40,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-12 12:52:40,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:52:40,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-12 12:52:40,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-05-12 12:52:40,176 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-05-12 12:52:40,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 124 flow. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:52:40,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:52:40,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-05-12 12:52:40,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:52:40,248 INFO L124 PetriNetUnfolderBase]: 50/214 cut-off events. [2024-05-12 12:52:40,249 INFO L125 PetriNetUnfolderBase]: For 155/155 co-relation queries the response was YES. [2024-05-12 12:52:40,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 214 events. 50/214 cut-off events. For 155/155 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 910 event pairs, 26 based on Foata normal form. 3/205 useless extension candidates. Maximal degree in co-relation 457. Up to 83 conditions per place. [2024-05-12 12:52:40,249 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 16 selfloop transitions, 6 changer transitions 15/51 dead transitions. [2024-05-12 12:52:40,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 51 transitions, 232 flow [2024-05-12 12:52:40,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-12 12:52:40,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-05-12 12:52:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 113 transitions. [2024-05-12 12:52:40,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6277777777777778 [2024-05-12 12:52:40,251 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 124 flow. Second operand 4 states and 113 transitions. [2024-05-12 12:52:40,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 51 transitions, 232 flow [2024-05-12 12:52:40,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 51 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 12:52:40,256 INFO L231 Difference]: Finished difference. Result has 49 places, 32 transitions, 99 flow [2024-05-12 12:52:40,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=49, PETRI_TRANSITIONS=32} [2024-05-12 12:52:40,259 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 5 predicate places. [2024-05-12 12:52:40,259 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 32 transitions, 99 flow [2024-05-12 12:52:40,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:52:40,259 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:52:40,259 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] [2024-05-12 12:52:40,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-12 12:52:40,259 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-12 12:52:40,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:52:40,260 INFO L85 PathProgramCache]: Analyzing trace with hash -186441623, now seen corresponding path program 1 times [2024-05-12 12:52:40,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:52:40,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278291078] [2024-05-12 12:52:40,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:52:40,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:52:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:52:40,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:52:40,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:52:40,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278291078] [2024-05-12 12:52:40,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278291078] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:52:40,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:52:40,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-12 12:52:40,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507488123] [2024-05-12 12:52:40,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:52:40,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-12 12:52:40,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:52:40,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-12 12:52:40,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-05-12 12:52:40,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-05-12 12:52:40,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 32 transitions, 99 flow. Second operand has 8 states, 8 states have (on average 20.875) internal successors, (167), 8 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:52:40,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:52:40,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-05-12 12:52:40,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:52:40,575 INFO L124 PetriNetUnfolderBase]: 13/79 cut-off events. [2024-05-12 12:52:40,576 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-05-12 12:52:40,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 79 events. 13/79 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 226 event pairs, 0 based on Foata normal form. 7/85 useless extension candidates. Maximal degree in co-relation 155. Up to 40 conditions per place. [2024-05-12 12:52:40,576 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 14 selfloop transitions, 3 changer transitions 10/37 dead transitions. [2024-05-12 12:52:40,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 163 flow [2024-05-12 12:52:40,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 12:52:40,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 12:52:40,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2024-05-12 12:52:40,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-05-12 12:52:40,578 INFO L175 Difference]: Start difference. First operand has 49 places, 32 transitions, 99 flow. Second operand 5 states and 120 transitions. [2024-05-12 12:52:40,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 163 flow [2024-05-12 12:52:40,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 37 transitions, 147 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-05-12 12:52:40,580 INFO L231 Difference]: Finished difference. Result has 42 places, 25 transitions, 75 flow [2024-05-12 12:52:40,580 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=75, PETRI_PLACES=42, PETRI_TRANSITIONS=25} [2024-05-12 12:52:40,581 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -2 predicate places. [2024-05-12 12:52:40,581 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 25 transitions, 75 flow [2024-05-12 12:52:40,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 8 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:52:40,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:52:40,581 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] [2024-05-12 12:52:40,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-05-12 12:52:40,582 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-12 12:52:40,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:52:40,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1103805961, now seen corresponding path program 1 times [2024-05-12 12:52:40,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:52:40,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536856645] [2024-05-12 12:52:40,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:52:40,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:52:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:52:40,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:52:40,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:52:40,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536856645] [2024-05-12 12:52:40,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536856645] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:52:40,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:52:40,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 12:52:40,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181258415] [2024-05-12 12:52:40,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:52:40,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-12 12:52:40,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:52:40,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-12 12:52:40,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-05-12 12:52:40,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-05-12 12:52:40,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 25 transitions, 75 flow. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:52:40,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:52:40,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-05-12 12:52:40,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:52:40,718 INFO L124 PetriNetUnfolderBase]: 13/58 cut-off events. [2024-05-12 12:52:40,719 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-05-12 12:52:40,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 58 events. 13/58 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 148 event pairs, 3 based on Foata normal form. 1/58 useless extension candidates. Maximal degree in co-relation 113. Up to 27 conditions per place. [2024-05-12 12:52:40,719 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2024-05-12 12:52:40,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 25 transitions, 109 flow [2024-05-12 12:52:40,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-12 12:52:40,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-05-12 12:52:40,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2024-05-12 12:52:40,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5222222222222223 [2024-05-12 12:52:40,721 INFO L175 Difference]: Start difference. First operand has 42 places, 25 transitions, 75 flow. Second operand 4 states and 94 transitions. [2024-05-12 12:52:40,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 25 transitions, 109 flow [2024-05-12 12:52:40,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 25 transitions, 96 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-05-12 12:52:40,722 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2024-05-12 12:52:40,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2024-05-12 12:52:40,724 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -13 predicate places. [2024-05-12 12:52:40,724 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2024-05-12 12:52:40,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:52:40,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-05-12 12:52:40,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-05-12 12:52:40,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-05-12 12:52:40,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-05-12 12:52:40,729 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2024-05-12 12:52:40,731 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-12 12:52:40,731 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-12 12:52:40,735 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-05-12 12:52:40,735 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-05-12 12:52:40,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.05 12:52:40 BasicIcfg [2024-05-12 12:52:40,737 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-12 12:52:40,737 INFO L158 Benchmark]: Toolchain (without parser) took 3298.49ms. Allocated memory was 132.1MB in the beginning and 199.2MB in the end (delta: 67.1MB). Free memory was 55.2MB in the beginning and 155.6MB in the end (delta: -100.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 12:52:40,737 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 132.1MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 12:52:40,738 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 132.1MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 12:52:40,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.88ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 55.1MB in the beginning and 118.7MB in the end (delta: -63.6MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2024-05-12 12:52:40,738 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.56ms. Allocated memory is still 165.7MB. Free memory was 118.7MB in the beginning and 116.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-05-12 12:52:40,738 INFO L158 Benchmark]: Boogie Preprocessor took 66.92ms. Allocated memory is still 165.7MB. Free memory was 116.5MB in the beginning and 113.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-05-12 12:52:40,738 INFO L158 Benchmark]: RCFGBuilder took 441.88ms. Allocated memory is still 165.7MB. Free memory was 113.7MB in the beginning and 78.1MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-05-12 12:52:40,739 INFO L158 Benchmark]: TraceAbstraction took 2233.23ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 77.5MB in the beginning and 155.6MB in the end (delta: -78.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 12:52:40,741 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 0.14ms. Allocated memory is still 132.1MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 132.1MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 493.88ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 55.1MB in the beginning and 118.7MB in the end (delta: -63.6MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.56ms. Allocated memory is still 165.7MB. Free memory was 118.7MB in the beginning and 116.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.92ms. Allocated memory is still 165.7MB. Free memory was 116.5MB in the beginning and 113.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 441.88ms. Allocated memory is still 165.7MB. Free memory was 113.7MB in the beginning and 78.1MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2233.23ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 77.5MB in the beginning and 155.6MB in the end (delta: -78.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 63 locations, 3 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: 2.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 447 IncrementalHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 2 mSDtfsCounter, 447 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=5, InterpolantAutomatonStates: 31, 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, 1.0s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 768 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-05-12 12:52:40,761 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