./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_19-publish-precision_unknown_1_neg.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_19-publish-precision_unknown_1_neg.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-tmp.fs.goblint-validation-7724a2d-m [2024-06-28 02:14:50,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 02:14:50,192 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 02:14:50,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 02:14:50,198 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 02:14:50,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 02:14:50,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 02:14:50,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 02:14:50,223 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 02:14:50,226 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 02:14:50,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 02:14:50,226 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 02:14:50,227 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 02:14:50,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 02:14:50,228 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 02:14:50,229 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 02:14:50,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 02:14:50,229 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 02:14:50,229 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 02:14:50,229 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 02:14:50,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 02:14:50,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 02:14:50,231 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 02:14:50,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 02:14:50,231 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 02:14:50,231 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 02:14:50,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 02:14:50,232 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 02:14:50,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 02:14:50,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 02:14:50,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 02:14:50,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 02:14:50,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 02:14:50,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 02:14:50,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 02:14:50,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 02:14:50,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 02:14:50,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 02:14:50,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 02:14:50,235 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 02:14:50,235 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 02:14:50,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 02:14:50,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 02:14:50,235 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-28 02:14:50,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 02:14:50,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 02:14:50,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 02:14:50,472 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 02:14:50,473 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 02:14:50,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_19-publish-precision_unknown_1_neg.yml/witness.yml [2024-06-28 02:14:50,585 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 02:14:50,589 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 02:14:50,591 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2024-06-28 02:14:51,593 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 02:14:51,785 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 02:14:51,786 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2024-06-28 02:14:51,796 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7f20d6dc/db5c047a3dff4b569161fb1577f9257d/FLAGdeece9624 [2024-06-28 02:14:51,810 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7f20d6dc/db5c047a3dff4b569161fb1577f9257d [2024-06-28 02:14:51,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 02:14:51,812 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 02:14:51,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 02:14:51,813 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 02:14:51,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 02:14:51,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 02:14:50" (1/2) ... [2024-06-28 02:14:51,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@468c2768 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:14:51, skipping insertion in model container [2024-06-28 02:14:51,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 02:14:50" (1/2) ... [2024-06-28 02:14:51,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1d843e5a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:14:51, skipping insertion in model container [2024-06-28 02:14:51,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 02:14:51" (2/2) ... [2024-06-28 02:14:51,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@468c2768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:51, skipping insertion in model container [2024-06-28 02:14:51,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 02:14:51" (2/2) ... [2024-06-28 02:14:51,833 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 02:14:51,861 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 02:14:51,863 INFO L97 edCorrectnessWitness]: Location invariant before [L698-L698] ((! multithreaded || (glob1 == 0 || glob1 == 5)) && (! multithreaded || (mutex2_locked || (glob1 == 0 || glob1 == 5)))) && (! multithreaded || (mutex1_locked || glob1 == 0)) [2024-06-28 02:14:51,863 INFO L103 edCorrectnessWitness]: ghost_variable mutex1_locked = 0 [2024-06-28 02:14:51,863 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 02:14:51,863 INFO L103 edCorrectnessWitness]: ghost_variable mutex2_locked = 0 [2024-06-28 02:14:51,863 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] mutex2_locked = 1; [2024-06-28 02:14:51,864 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] mutex2_locked = 0; [2024-06-28 02:14:51,864 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] mutex2_locked = 0; [2024-06-28 02:14:51,864 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] mutex1_locked = 1; [2024-06-28 02:14:51,864 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] mutex2_locked = 1; [2024-06-28 02:14:51,864 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-06-28 02:14:51,864 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] mutex2_locked = 1; [2024-06-28 02:14:51,864 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] mutex1_locked = 0; [2024-06-28 02:14:51,864 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] mutex2_locked = 0; [2024-06-28 02:14:51,903 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 02:14:52,106 WARN L247 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_19-publish-precision_unknown_1_neg.i[1103,1116] [2024-06-28 02:14:52,258 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 02:14:52,267 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 02:14:52,294 WARN L247 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_19-publish-precision_unknown_1_neg.i[1103,1116] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 02:14:52,324 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 02:14:52,355 INFO L206 MainTranslator]: Completed translation [2024-06-28 02:14:52,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:52 WrapperNode [2024-06-28 02:14:52,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 02:14:52,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 02:14:52,357 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 02:14:52,357 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 02:14:52,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:52" (1/1) ... [2024-06-28 02:14:52,383 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:52" (1/1) ... [2024-06-28 02:14:52,402 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2024-06-28 02:14:52,403 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 02:14:52,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 02:14:52,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 02:14:52,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 02:14:52,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:52" (1/1) ... [2024-06-28 02:14:52,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:52" (1/1) ... [2024-06-28 02:14:52,425 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:52" (1/1) ... [2024-06-28 02:14:52,444 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-28 02:14:52,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:52" (1/1) ... [2024-06-28 02:14:52,445 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:52" (1/1) ... [2024-06-28 02:14:52,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:52" (1/1) ... [2024-06-28 02:14:52,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:52" (1/1) ... [2024-06-28 02:14:52,458 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:52" (1/1) ... [2024-06-28 02:14:52,459 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:52" (1/1) ... [2024-06-28 02:14:52,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 02:14:52,461 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 02:14:52,461 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 02:14:52,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 02:14:52,465 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:52" (1/1) ... [2024-06-28 02:14:52,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 02:14:52,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 02:14:52,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-28 02:14:52,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-28 02:14:52,541 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-28 02:14:52,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 02:14:52,542 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-28 02:14:52,542 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-28 02:14:52,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 02:14:52,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-28 02:14:52,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-28 02:14:52,545 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-28 02:14:52,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 02:14:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 02:14:52,547 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-28 02:14:52,673 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 02:14:52,675 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 02:14:52,808 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 02:14:52,808 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 02:14:52,889 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 02:14:52,889 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-28 02:14:52,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 02:14:52 BoogieIcfgContainer [2024-06-28 02:14:52,889 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 02:14:52,891 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 02:14:52,891 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 02:14:52,894 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 02:14:52,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 02:14:50" (1/4) ... [2024-06-28 02:14:52,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a614ae and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 02:14:52, skipping insertion in model container [2024-06-28 02:14:52,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 02:14:51" (2/4) ... [2024-06-28 02:14:52,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a614ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 02:14:52, skipping insertion in model container [2024-06-28 02:14:52,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:14:52" (3/4) ... [2024-06-28 02:14:52,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a614ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 02:14:52, skipping insertion in model container [2024-06-28 02:14:52,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 02:14:52" (4/4) ... [2024-06-28 02:14:52,896 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2024-06-28 02:14:52,910 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 02:14:52,911 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-28 02:14:52,911 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 02:14:52,945 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-28 02:14:52,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 31 transitions, 69 flow [2024-06-28 02:14:52,993 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2024-06-28 02:14:53,004 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-28 02:14:53,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 30 events. 1/30 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-06-28 02:14:53,007 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 31 transitions, 69 flow [2024-06-28 02:14:53,010 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 23 transitions, 49 flow [2024-06-28 02:14:53,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 02:14:53,026 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;@675bc69d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 02:14:53,026 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-06-28 02:14:53,029 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 02:14:53,029 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-28 02:14:53,029 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 02:14:53,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 02:14:53,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-28 02:14:53,030 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 02:14:53,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 02:14:53,034 INFO L85 PathProgramCache]: Analyzing trace with hash 198751593, now seen corresponding path program 1 times [2024-06-28 02:14:53,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 02:14:53,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315766011] [2024-06-28 02:14:53,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 02:14:53,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 02:14:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 02:14:53,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 02:14:53,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 02:14:53,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315766011] [2024-06-28 02:14:53,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315766011] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 02:14:53,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 02:14:53,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 02:14:53,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771480806] [2024-06-28 02:14:53,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 02:14:53,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 02:14:53,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 02:14:53,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 02:14:53,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 02:14:53,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-06-28 02:14:53,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 02:14:53,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 02:14:53,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-06-28 02:14:53,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 02:14:53,401 INFO L124 PetriNetUnfolderBase]: 29/98 cut-off events. [2024-06-28 02:14:53,401 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-28 02:14:53,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 98 events. 29/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 299 event pairs, 20 based on Foata normal form. 7/102 useless extension candidates. Maximal degree in co-relation 170. Up to 51 conditions per place. [2024-06-28 02:14:53,404 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 15 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2024-06-28 02:14:53,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 91 flow [2024-06-28 02:14:53,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 02:14:53,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 02:14:53,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2024-06-28 02:14:53,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5591397849462365 [2024-06-28 02:14:53,418 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 49 flow. Second operand 3 states and 52 transitions. [2024-06-28 02:14:53,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 91 flow [2024-06-28 02:14:53,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 26 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 02:14:53,421 INFO L231 Difference]: Finished difference. Result has 29 places, 23 transitions, 59 flow [2024-06-28 02:14:53,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2024-06-28 02:14:53,426 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2024-06-28 02:14:53,426 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 59 flow [2024-06-28 02:14:53,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 02:14:53,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 02:14:53,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 02:14:53,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 02:14:53,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 02:14:53,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 02:14:53,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1553807935, now seen corresponding path program 1 times [2024-06-28 02:14:53,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 02:14:53,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789180940] [2024-06-28 02:14:53,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 02:14:53,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 02:14:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-06-28 02:14:53,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-06-28 02:14:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-06-28 02:14:53,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-06-28 02:14:53,520 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-06-28 02:14:53,522 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-06-28 02:14:53,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-06-28 02:14:53,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-06-28 02:14:53,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 02:14:53,532 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-06-28 02:14:53,536 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-28 02:14:53,537 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-28 02:14:53,564 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-28 02:14:53,565 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-28 02:14:53,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.06 02:14:53 BasicIcfg [2024-06-28 02:14:53,566 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-28 02:14:53,567 INFO L158 Benchmark]: Toolchain (without parser) took 1754.94ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 101.7MB in the beginning and 170.7MB in the end (delta: -69.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 02:14:53,569 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 90.2MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 02:14:53,569 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 172.0MB. Free memory was 138.5MB in the beginning and 138.5MB in the end (delta: 27.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 02:14:53,570 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.65ms. Allocated memory is still 172.0MB. Free memory was 101.2MB in the beginning and 123.2MB in the end (delta: -22.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-28 02:14:53,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.88ms. Allocated memory is still 172.0MB. Free memory was 123.2MB in the beginning and 121.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 02:14:53,573 INFO L158 Benchmark]: Boogie Preprocessor took 55.66ms. Allocated memory is still 172.0MB. Free memory was 121.9MB in the beginning and 119.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 02:14:53,573 INFO L158 Benchmark]: RCFGBuilder took 428.90ms. Allocated memory is still 172.0MB. Free memory was 119.8MB in the beginning and 93.9MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-06-28 02:14:53,573 INFO L158 Benchmark]: TraceAbstraction took 675.22ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 93.2MB in the beginning and 170.7MB in the end (delta: -77.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 02:14:53,577 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 90.2MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 172.0MB. Free memory was 138.5MB in the beginning and 138.5MB in the end (delta: 27.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 543.65ms. Allocated memory is still 172.0MB. Free memory was 101.2MB in the beginning and 123.2MB in the end (delta: -22.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.88ms. Allocated memory is still 172.0MB. Free memory was 123.2MB in the beginning and 121.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.66ms. Allocated memory is still 172.0MB. Free memory was 121.9MB in the beginning and 119.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 428.90ms. Allocated memory is still 172.0MB. Free memory was 119.8MB in the beginning and 93.9MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 675.22ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 93.2MB in the beginning and 170.7MB in the end (delta: -77.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1] 0 //@ ghost int mutex1_locked = 0; [L1] 0 //@ ghost int multithreaded = 0; [L1] 0 //@ ghost int mutex2_locked = 0; [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] 0 //@ ghost multithreaded = 1; VAL [glob1=0, id=-1, mutex1={3:0}, mutex2={4:0}] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, glob1=0, id=-1, mutex1={3:0}, mutex2={4:0}] [L698] 0 //@ assert (((!multithreaded || ((glob1 == 0) || (glob1 == 5))) && (!multithreaded || (mutex2_locked || ((glob1 == 0) || (glob1 == 5))))) && (!multithreaded || (mutex1_locked || (glob1 == 0)))); VAL [\old(arg)={0:0}, glob1=0, id=-1, mutex1={3:0}, mutex2={4:0}] [L698] 0 //@ ghost mutex2_locked = 1; [L699] CALL 0 __VERIFIER_assert(!(glob1 == 0)) [L19] COND TRUE 0 !(cond) VAL [\old(arg)={0:0}, \old(cond)=0, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] [L19] 0 reach_error() VAL [\old(arg)={0:0}, \old(cond)=0, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 698]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 46 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: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=1, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate proved your program to be incorrect! [2024-06-28 02:14:53,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE