./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stateful01-1.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-08_07-59-58.files/protection-ghost/stateful01-1.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7bc0c755 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i ./goblint.2024-08-08_07-59-58.files/protection-ghost/stateful01-1.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_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.dk.goblint-validation-atomicfix-7bc0c75-m [2024-08-23 11:27:24,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-23 11:27:24,108 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-23 11:27:24,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-23 11:27:24,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-23 11:27:24,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-23 11:27:24,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-23 11:27:24,140 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-23 11:27:24,141 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-23 11:27:24,141 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-23 11:27:24,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-23 11:27:24,142 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-23 11:27:24,142 INFO L153 SettingsManager]: * Use SBE=true [2024-08-23 11:27:24,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-23 11:27:24,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-23 11:27:24,145 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-23 11:27:24,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-23 11:27:24,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-23 11:27:24,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-23 11:27:24,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-23 11:27:24,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-23 11:27:24,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-23 11:27:24,150 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-23 11:27:24,150 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-23 11:27:24,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-23 11:27:24,151 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-23 11:27:24,151 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-23 11:27:24,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-23 11:27:24,151 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-23 11:27:24,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-23 11:27:24,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 11:27:24,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-23 11:27:24,152 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-23 11:27:24,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-23 11:27:24,152 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-23 11:27:24,153 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-23 11:27:24,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-23 11:27:24,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-23 11:27:24,155 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-23 11:27:24,155 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-23 11:27:24,155 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-23 11:27:24,156 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-23 11:27:24,156 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-23 11:27:24,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-23 11:27:24,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-23 11:27:24,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-23 11:27:24,437 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-23 11:27:24,438 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-23 11:27:24,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/protection-ghost/stateful01-1.yml/witness.yml [2024-08-23 11:27:24,555 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-23 11:27:24,556 INFO L274 PluginConnector]: CDTParser initialized [2024-08-23 11:27:24,556 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2024-08-23 11:27:25,944 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-23 11:27:26,190 INFO L384 CDTParser]: Found 1 translation units. [2024-08-23 11:27:26,191 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2024-08-23 11:27:26,204 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9f4205fc7/1f06d4a023674ba2bb6da496cb02e482/FLAG147d838f7 [2024-08-23 11:27:26,533 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9f4205fc7/1f06d4a023674ba2bb6da496cb02e482 [2024-08-23 11:27:26,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-23 11:27:26,535 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-23 11:27:26,537 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-23 11:27:26,537 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-23 11:27:26,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-23 11:27:26,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 11:27:24" (1/2) ... [2024-08-23 11:27:26,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2518d4f9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 11:27:26, skipping insertion in model container [2024-08-23 11:27:26,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 11:27:24" (1/2) ... [2024-08-23 11:27:26,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@76fa5ef and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 11:27:26, skipping insertion in model container [2024-08-23 11:27:26,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 11:27:26" (2/2) ... [2024-08-23 11:27:26,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2518d4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:27:26, skipping insertion in model container [2024-08-23 11:27:26,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 11:27:26" (2/2) ... [2024-08-23 11:27:26,548 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-23 11:27:26,589 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-23 11:27:26,591 INFO L97 edCorrectnessWitness]: Location invariant before [L722-L722] ! multithreaded || 10 <= data1 [2024-08-23 11:27:26,591 INFO L97 edCorrectnessWitness]: Location invariant before [L723-L723] ! multithreaded || 10 <= data1 [2024-08-23 11:27:26,591 INFO L103 edCorrectnessWitness]: ghost_variable ma_locked = 0 [2024-08-23 11:27:26,591 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-23 11:27:26,591 INFO L106 edCorrectnessWitness]: ghost_update [L706-L706] ma_locked = 1; [2024-08-23 11:27:26,592 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] ma_locked = 1; [2024-08-23 11:27:26,592 INFO L106 edCorrectnessWitness]: ghost_update [L711-L711] ma_locked = 0; [2024-08-23 11:27:26,592 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] ma_locked = 1; [2024-08-23 11:27:26,592 INFO L106 edCorrectnessWitness]: ghost_update [L721-L721] multithreaded = 1; [2024-08-23 11:27:26,592 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] ma_locked = 0; [2024-08-23 11:27:26,592 INFO L106 edCorrectnessWitness]: ghost_update [L709-L709] ma_locked = 1; [2024-08-23 11:27:26,592 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] ma_locked = 0; [2024-08-23 11:27:26,593 INFO L106 edCorrectnessWitness]: ghost_update [L708-L708] ma_locked = 0; [2024-08-23 11:27:26,636 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-23 11:27:27,030 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2024-08-23 11:27:27,034 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 11:27:27,046 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-23 11:27:27,128 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2024-08-23 11:27:27,129 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 11:27:27,162 INFO L206 MainTranslator]: Completed translation [2024-08-23 11:27:27,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:27:27 WrapperNode [2024-08-23 11:27:27,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-23 11:27:27,164 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-23 11:27:27,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-23 11:27:27,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-23 11:27:27,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:27:27" (1/1) ... [2024-08-23 11:27:27,191 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:27:27" (1/1) ... [2024-08-23 11:27:27,216 INFO L138 Inliner]: procedures = 168, calls = 28, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2024-08-23 11:27:27,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-23 11:27:27,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-23 11:27:27,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-23 11:27:27,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-23 11:27:27,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:27:27" (1/1) ... [2024-08-23 11:27:27,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:27:27" (1/1) ... [2024-08-23 11:27:27,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:27:27" (1/1) ... [2024-08-23 11:27:27,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:27:27" (1/1) ... [2024-08-23 11:27:27,239 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:27:27" (1/1) ... [2024-08-23 11:27:27,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:27:27" (1/1) ... [2024-08-23 11:27:27,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:27:27" (1/1) ... [2024-08-23 11:27:27,246 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:27:27" (1/1) ... [2024-08-23 11:27:27,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-23 11:27:27,249 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-23 11:27:27,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-23 11:27:27,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-23 11:27:27,250 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:27:27" (1/1) ... [2024-08-23 11:27:27,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 11:27:27,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 11:27:27,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-23 11:27:27,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-23 11:27:27,320 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-23 11:27:27,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-23 11:27:27,321 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-23 11:27:27,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-23 11:27:27,322 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-08-23 11:27:27,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-23 11:27:27,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-23 11:27:27,322 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-08-23 11:27:27,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-23 11:27:27,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-23 11:27:27,324 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-23 11:27:27,468 INFO L243 CfgBuilder]: Building ICFG [2024-08-23 11:27:27,470 INFO L269 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-23 11:27:27,700 INFO L288 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-23 11:27:27,701 INFO L292 CfgBuilder]: Performing block encoding [2024-08-23 11:27:27,864 INFO L314 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-23 11:27:27,864 INFO L319 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-23 11:27:27,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 11:27:27 BoogieIcfgContainer [2024-08-23 11:27:27,864 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-23 11:27:27,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-23 11:27:27,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-23 11:27:27,874 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-23 11:27:27,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 11:27:24" (1/4) ... [2024-08-23 11:27:27,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622d9f2b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 11:27:27, skipping insertion in model container [2024-08-23 11:27:27,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 11:27:26" (2/4) ... [2024-08-23 11:27:27,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622d9f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 11:27:27, skipping insertion in model container [2024-08-23 11:27:27,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:27:27" (3/4) ... [2024-08-23 11:27:27,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622d9f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 11:27:27, skipping insertion in model container [2024-08-23 11:27:27,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 11:27:27" (4/4) ... [2024-08-23 11:27:27,879 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2024-08-23 11:27:27,901 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-23 11:27:27,902 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-08-23 11:27:27,902 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-23 11:27:27,952 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-23 11:27:28,002 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 11:27:28,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 11:27:28,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 11:27:28,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-23 11:27:28,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-23 11:27:28,041 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 11:27:28,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-23 11:27:28,058 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=PARTIAL_ORDER_FA, 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;@1935fc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 11:27:28,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-08-23 11:27:28,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 11:27:28,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 11:27:28,181 INFO L85 PathProgramCache]: Analyzing trace with hash -995749104, now seen corresponding path program 1 times [2024-08-23 11:27:28,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 11:27:28,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250882130] [2024-08-23 11:27:28,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 11:27:28,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 11:27:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 11:27:28,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 11:27:28,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 11:27:28,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250882130] [2024-08-23 11:27:28,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250882130] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 11:27:28,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 11:27:28,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-23 11:27:28,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324913048] [2024-08-23 11:27:28,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 11:27:28,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 11:27:28,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 11:27:28,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 11:27:28,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-23 11:27:28,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 11:27:28,636 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 11:27:28,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-08-23 11:27:28,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 11:27:28,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 11:27:28,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-23 11:27:28,741 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-23 11:27:28,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 11:27:28,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1004124268, now seen corresponding path program 1 times [2024-08-23 11:27:28,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 11:27:28,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108598860] [2024-08-23 11:27:28,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 11:27:28,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 11:27:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-23 11:27:28,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-23 11:27:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-23 11:27:28,893 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-23 11:27:28,893 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-23 11:27:28,895 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-08-23 11:27:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-08-23 11:27:28,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 5 remaining) [2024-08-23 11:27:28,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-08-23 11:27:28,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-08-23 11:27:28,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-23 11:27:28,905 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-23 11:27:28,910 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-08-23 11:27:28,910 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-08-23 11:27:28,949 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-08-23 11:27:28,949 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-08-23 11:27:28,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.08 11:27:28 BasicIcfg [2024-08-23 11:27:28,950 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-23 11:27:28,951 INFO L158 Benchmark]: Toolchain (without parser) took 2416.13ms. Allocated memory is still 157.3MB. Free memory was 98.0MB in the beginning and 90.0MB in the end (delta: 8.1MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2024-08-23 11:27:28,951 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 94.4MB. Free memory was 50.2MB in the beginning and 50.1MB in the end (delta: 179.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-23 11:27:28,952 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory was 46.8MB in the beginning and 46.6MB in the end (delta: 178.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-23 11:27:28,952 INFO L158 Benchmark]: CACSL2BoogieTranslator took 626.54ms. Allocated memory is still 157.3MB. Free memory was 97.6MB in the beginning and 108.6MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-08-23 11:27:28,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.24ms. Allocated memory is still 157.3MB. Free memory was 108.6MB in the beginning and 106.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-23 11:27:28,953 INFO L158 Benchmark]: Boogie Preprocessor took 31.01ms. Allocated memory is still 157.3MB. Free memory was 106.5MB in the beginning and 105.8MB in the end (delta: 738.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-23 11:27:28,953 INFO L158 Benchmark]: RCFGBuilder took 615.16ms. Allocated memory is still 157.3MB. Free memory was 105.1MB in the beginning and 76.4MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-08-23 11:27:28,954 INFO L158 Benchmark]: TraceAbstraction took 1082.52ms. Allocated memory is still 157.3MB. Free memory was 76.4MB in the beginning and 90.0MB in the end (delta: -13.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-23 11:27:28,956 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.20ms. Allocated memory is still 94.4MB. Free memory was 50.2MB in the beginning and 50.1MB in the end (delta: 179.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory was 46.8MB in the beginning and 46.6MB in the end (delta: 178.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 626.54ms. Allocated memory is still 157.3MB. Free memory was 97.6MB in the beginning and 108.6MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.24ms. Allocated memory is still 157.3MB. Free memory was 108.6MB in the beginning and 106.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.01ms. Allocated memory is still 157.3MB. Free memory was 106.5MB in the beginning and 105.8MB in the end (delta: 738.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 615.16ms. Allocated memory is still 157.3MB. Free memory was 105.1MB in the beginning and 76.4MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1082.52ms. Allocated memory is still 157.3MB. Free memory was 76.4MB in the beginning and 90.0MB in the end (delta: -13.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 285, independent: 276, independent conditional: 27, independent unconditional: 249, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 27, independent unconditional: 249, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 27, independent unconditional: 249, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 282, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 255, independent: 249, independent conditional: 0, independent unconditional: 249, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 255, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 11, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 11, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 73, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 282, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 255, unknown conditional: 0, unknown unconditional: 255] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 249, Positive conditional cache size: 0, Positive unconditional cache size: 249, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 3 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 30, Number of trivial persistent sets: 30, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 255, independent: 249, independent conditional: 0, independent unconditional: 249, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 285, independent: 276, independent conditional: 27, independent unconditional: 249, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 27, independent unconditional: 249, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 27, independent unconditional: 249, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 282, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 255, independent: 249, independent conditional: 0, independent unconditional: 249, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 255, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 11, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 11, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 73, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 282, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 255, unknown conditional: 0, unknown unconditional: 255] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 249, Positive conditional cache size: 0, Positive unconditional cache size: 249, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 3 - CounterExampleResult [Line: 727]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1] 0 //@ ghost int ma_locked = 0; [L1] 0 //@ ghost int multithreaded = 0; [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 [L721] 0 //@ ghost multithreaded = 1; VAL [data1=10, data2=10, ma={3:0}, mb={4:0}, t1=-1] [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [\old(arg)={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, t1=-1] [L696] 1 //@ ghost ma_locked = 1; [L697] 1 data1++ VAL [\old(arg)={0:0}, arg={0:0}, data1=11, data2=10, ma={3:0}, mb={4:0}] [L698] 1 //@ ghost ma_locked = 0; [L699] 1 //@ ghost ma_locked = 1; [L700] 1 data2++ VAL [\old(arg)={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}] [L701] 1 //@ ghost ma_locked = 0; [L702] 1 return 0; [L722] 0 //@ assert (!multithreaded || (10 <= data1)); [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}, t1=-1, t2=0] [L706] 2 //@ ghost ma_locked = 1; [L707] 2 data1+=5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={3:0}, mb={4:0}] [L708] 2 //@ ghost ma_locked = 0; [L709] 2 //@ ghost ma_locked = 1; [L710] 2 data2-=6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L711] 2 //@ ghost ma_locked = 0; [L712] 2 return 0; [L723] 0 //@ assert (!multithreaded || (10 <= data1)); VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=-1, t2=0] [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=-1, t2=0] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=-1, t2=0] [L725] COND TRUE 0 data1==16 && data2==5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=-1, t2=0] [L727] 0 reach_error() VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=-1, t2=0] - UnprovableResult [Line: 722]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 721]: 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. - UnprovableResult [Line: 722]: 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 59 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 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! [2024-08-23 11:27:28,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-08-23 11:27:29,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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