./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/36-apron_17-traces-rpb-litmus_unknown_1_pos.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c091e2ee 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/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/36-apron_17-traces-rpb-litmus_unknown_1_pos.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.fs.goblint-validation-c091e2e-m [2024-08-13 16:47:07,057 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-13 16:47:07,137 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-13 16:47:07,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-13 16:47:07,144 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-13 16:47:07,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-13 16:47:07,173 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-13 16:47:07,174 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-13 16:47:07,176 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-13 16:47:07,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-13 16:47:07,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-13 16:47:07,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-13 16:47:07,179 INFO L153 SettingsManager]: * Use SBE=true [2024-08-13 16:47:07,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-13 16:47:07,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-13 16:47:07,182 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-13 16:47:07,182 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-13 16:47:07,182 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-13 16:47:07,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-13 16:47:07,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-13 16:47:07,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-13 16:47:07,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-13 16:47:07,187 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-13 16:47:07,188 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-13 16:47:07,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-13 16:47:07,188 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-13 16:47:07,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-13 16:47:07,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-13 16:47:07,189 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-13 16:47:07,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-13 16:47:07,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 16:47:07,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-13 16:47:07,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-13 16:47:07,190 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-13 16:47:07,190 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-13 16:47:07,191 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-13 16:47:07,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-13 16:47:07,191 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-13 16:47:07,191 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-13 16:47:07,191 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-13 16:47:07,192 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-13 16:47:07,193 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-13 16:47:07,193 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-13 16:47:07,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-13 16:47:07,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-13 16:47:07,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-13 16:47:07,466 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-13 16:47:07,467 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-13 16:47:07,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/36-apron_17-traces-rpb-litmus_unknown_1_pos.yml/witness.yml [2024-08-13 16:47:07,622 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-13 16:47:07,623 INFO L274 PluginConnector]: CDTParser initialized [2024-08-13 16:47:07,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2024-08-13 16:47:09,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-13 16:47:09,279 INFO L384 CDTParser]: Found 1 translation units. [2024-08-13 16:47:09,280 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2024-08-13 16:47:09,303 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/cc9563507/b36a928e57e94665a3a5a6a81b5f015b/FLAG08eadfdc1 [2024-08-13 16:47:09,575 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/cc9563507/b36a928e57e94665a3a5a6a81b5f015b [2024-08-13 16:47:09,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-13 16:47:09,577 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-13 16:47:09,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-13 16:47:09,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-13 16:47:09,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-13 16:47:09,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 04:47:07" (1/2) ... [2024-08-13 16:47:09,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@680df415 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 04:47:09, skipping insertion in model container [2024-08-13 16:47:09,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 04:47:07" (1/2) ... [2024-08-13 16:47:09,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3406fc83 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 04:47:09, skipping insertion in model container [2024-08-13 16:47:09,594 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 04:47:09" (2/2) ... [2024-08-13 16:47:09,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@680df415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:47:09, skipping insertion in model container [2024-08-13 16:47:09,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 04:47:09" (2/2) ... [2024-08-13 16:47:09,595 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-13 16:47:09,638 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-13 16:47:09,639 INFO L97 edCorrectnessWitness]: Location invariant before [L698-L698] ((! multithreaded || (g == 17 || g == 42)) && (! multithreaded || (B_locked || (g == 17 || g == 42)))) && (! multithreaded || (A_locked || (g == 17 || g == 42))) [2024-08-13 16:47:09,640 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-08-13 16:47:09,640 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-13 16:47:09,641 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-08-13 16:47:09,641 INFO L106 edCorrectnessWitness]: ghost_update [L702-L702] B_locked = 0; [2024-08-13 16:47:09,641 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 0; [2024-08-13 16:47:09,642 INFO L106 edCorrectnessWitness]: ghost_update [L703-L703] B_locked = 1; [2024-08-13 16:47:09,642 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] A_locked = 1; [2024-08-13 16:47:09,642 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] A_locked = 1; [2024-08-13 16:47:09,642 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-08-13 16:47:09,643 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] A_locked = 0; [2024-08-13 16:47:09,643 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] B_locked = 1; [2024-08-13 16:47:09,643 INFO L106 edCorrectnessWitness]: ghost_update [L707-L707] B_locked = 0; [2024-08-13 16:47:09,643 INFO L106 edCorrectnessWitness]: ghost_update [L708-L708] A_locked = 0; [2024-08-13 16:47:09,643 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] B_locked = 1; [2024-08-13 16:47:09,685 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-13 16:47:09,911 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/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2024-08-13 16:47:10,038 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 16:47:10,054 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-13 16:47:10,092 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/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] 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 [2024-08-13 16:47:10,139 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 16:47:10,178 INFO L206 MainTranslator]: Completed translation [2024-08-13 16:47:10,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:47:10 WrapperNode [2024-08-13 16:47:10,179 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-13 16:47:10,180 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-13 16:47:10,181 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-13 16:47:10,181 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-13 16:47:10,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:47:10" (1/1) ... [2024-08-13 16:47:10,207 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:47:10" (1/1) ... [2024-08-13 16:47:10,235 INFO L138 Inliner]: procedures = 163, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2024-08-13 16:47:10,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-13 16:47:10,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-13 16:47:10,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-13 16:47:10,237 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-13 16:47:10,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:47:10" (1/1) ... [2024-08-13 16:47:10,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:47:10" (1/1) ... [2024-08-13 16:47:10,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:47:10" (1/1) ... [2024-08-13 16:47:10,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:47:10" (1/1) ... [2024-08-13 16:47:10,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:47:10" (1/1) ... [2024-08-13 16:47:10,257 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:47:10" (1/1) ... [2024-08-13 16:47:10,259 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:47:10" (1/1) ... [2024-08-13 16:47:10,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:47:10" (1/1) ... [2024-08-13 16:47:10,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-13 16:47:10,263 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-13 16:47:10,263 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-13 16:47:10,263 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-13 16:47:10,264 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:47:10" (1/1) ... [2024-08-13 16:47:10,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 16:47:10,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 16:47:10,310 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) [2024-08-13 16:47:10,317 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 [2024-08-13 16:47:10,351 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-08-13 16:47:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-13 16:47:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-08-13 16:47:10,353 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-08-13 16:47:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-13 16:47:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-08-13 16:47:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-13 16:47:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-13 16:47:10,357 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-08-13 16:47:10,496 INFO L244 CfgBuilder]: Building ICFG [2024-08-13 16:47:10,497 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-13 16:47:10,702 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-08-13 16:47:10,702 INFO L293 CfgBuilder]: Performing block encoding [2024-08-13 16:47:10,826 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-13 16:47:10,827 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-13 16:47:10,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 04:47:10 BoogieIcfgContainer [2024-08-13 16:47:10,827 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-13 16:47:10,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-13 16:47:10,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-13 16:47:10,835 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-13 16:47:10,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 04:47:07" (1/4) ... [2024-08-13 16:47:10,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529f7b5a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.08 04:47:10, skipping insertion in model container [2024-08-13 16:47:10,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 04:47:09" (2/4) ... [2024-08-13 16:47:10,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529f7b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 04:47:10, skipping insertion in model container [2024-08-13 16:47:10,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:47:10" (3/4) ... [2024-08-13 16:47:10,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529f7b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 04:47:10, skipping insertion in model container [2024-08-13 16:47:10,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 04:47:10" (4/4) ... [2024-08-13 16:47:10,840 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2024-08-13 16:47:10,860 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-13 16:47:10,860 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-13 16:47:10,860 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-13 16:47:10,898 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-13 16:47:10,945 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 16:47:10,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 16:47:10,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 16:47:10,948 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) [2024-08-13 16:47:10,951 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 [2024-08-13 16:47:10,993 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 16:47:11,010 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-13 16:47:11,019 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;@9e11d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 16:47:11,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-13 16:47:11,192 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 16:47:11,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 16:47:11,198 INFO L85 PathProgramCache]: Analyzing trace with hash -190032051, now seen corresponding path program 1 times [2024-08-13 16:47:11,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 16:47:11,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345245413] [2024-08-13 16:47:11,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 16:47:11,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 16:47:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 16:47:11,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 16:47:11,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 16:47:11,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345245413] [2024-08-13 16:47:11,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345245413] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 16:47:11,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 16:47:11,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-13 16:47:11,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818158728] [2024-08-13 16:47:11,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 16:47:11,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 16:47:11,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 16:47:11,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 16:47:11,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 16:47:11,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 16:47:11,650 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 16:47:11,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) 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) [2024-08-13 16:47:11,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 16:47:11,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 16:47:11,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-13 16:47:11,709 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 16:47:11,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 16:47:11,710 INFO L85 PathProgramCache]: Analyzing trace with hash 280020356, now seen corresponding path program 1 times [2024-08-13 16:47:11,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 16:47:11,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014494201] [2024-08-13 16:47:11,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 16:47:11,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 16:47:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-13 16:47:11,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-13 16:47:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-13 16:47:11,845 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-13 16:47:11,845 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-13 16:47:11,847 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-08-13 16:47:11,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-08-13 16:47:11,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-08-13 16:47:11,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-13 16:47:11,859 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-13 16:47:11,864 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-08-13 16:47:11,864 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-08-13 16:47:11,908 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-08-13 16:47:11,911 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-08-13 16:47:11,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 04:47:11 BasicIcfg [2024-08-13 16:47:11,912 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-13 16:47:11,913 INFO L158 Benchmark]: Toolchain (without parser) took 2335.65ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 70.0MB in the beginning and 139.3MB in the end (delta: -69.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 16:47:11,914 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 146.8MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 16:47:11,915 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 146.8MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 16:47:11,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 598.79ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 69.9MB in the beginning and 154.6MB in the end (delta: -84.8MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-08-13 16:47:11,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.17ms. Allocated memory is still 199.2MB. Free memory was 154.6MB in the beginning and 153.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-13 16:47:11,916 INFO L158 Benchmark]: Boogie Preprocessor took 25.44ms. Allocated memory is still 199.2MB. Free memory was 153.6MB in the beginning and 151.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-13 16:47:11,919 INFO L158 Benchmark]: RCFGBuilder took 564.22ms. Allocated memory is still 199.2MB. Free memory was 151.5MB in the beginning and 123.2MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-08-13 16:47:11,920 INFO L158 Benchmark]: TraceAbstraction took 1082.37ms. Allocated memory is still 199.2MB. Free memory was 123.2MB in the beginning and 139.3MB in the end (delta: -16.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 16:47:11,921 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 0.18ms. Allocated memory is still 146.8MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 146.8MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 598.79ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 69.9MB in the beginning and 154.6MB in the end (delta: -84.8MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.17ms. Allocated memory is still 199.2MB. Free memory was 154.6MB in the beginning and 153.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.44ms. Allocated memory is still 199.2MB. Free memory was 153.6MB in the beginning and 151.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 564.22ms. Allocated memory is still 199.2MB. Free memory was 151.5MB in the beginning and 123.2MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1082.37ms. Allocated memory is still 199.2MB. Free memory was 123.2MB in the beginning and 139.3MB in the end (delta: -16.1MB). 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: 152, independent: 144, independent conditional: 18, independent unconditional: 126, dependent: 8, dependent conditional: 3, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 149, independent: 144, independent conditional: 18, independent unconditional: 126, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 149, independent: 144, independent conditional: 18, independent unconditional: 126, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 149, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 149, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 149, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 131, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 131, independent: 114, independent conditional: 0, independent unconditional: 114, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 17, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, independent: 93, independent conditional: 0, independent unconditional: 93, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 149, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 131, unknown conditional: 0, unknown unconditional: 131] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 126, Positive conditional cache size: 0, Positive unconditional cache size: 126, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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: 22, Number of trivial persistent sets: 22, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 131, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 152, independent: 144, independent conditional: 18, independent unconditional: 126, dependent: 8, dependent conditional: 3, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 149, independent: 144, independent conditional: 18, independent unconditional: 126, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 149, independent: 144, independent conditional: 18, independent unconditional: 126, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 149, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 149, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 149, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 131, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 131, independent: 114, independent conditional: 0, independent unconditional: 114, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 17, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, independent: 93, independent conditional: 0, independent unconditional: 93, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 149, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 131, unknown conditional: 0, unknown unconditional: 131] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 126, Positive conditional cache size: 0, Positive unconditional cache size: 126, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1] 0 //@ ghost int B_locked = 0; [L1] 0 //@ ghost int multithreaded = 0; [L1] 0 //@ ghost int A_locked = 0; [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] 0 //@ ghost multithreaded = 1; VAL [A={3:0}, B={4:0}, g=42, id=-1, r=0] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, \old(arg)={0:0}, g=42, id=-1, r=0] [L686] 1 //@ ghost A_locked = 1; [L687] 1 //@ ghost B_locked = 1; [L688] 1 g = 42 VAL [A={3:0}, B={4:0}, \old(arg)={0:0}, arg={0:0}, g=42] [L689] 1 //@ ghost B_locked = 0; [L690] 1 //@ ghost A_locked = 0; [L691] 1 return ((void *)0); [L698] 0 //@ assert (((!multithreaded || ((g == 17) || (g == 42))) && (!multithreaded || (B_locked || ((g == 17) || (g == 42))))) && (!multithreaded || (A_locked || ((g == 17) || (g == 42))))); VAL [A={3:0}, B={4:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, g=42, id=-1, r=0] [L698] 0 //@ ghost A_locked = 1; [L699] 0 //@ ghost B_locked = 1; [L700] COND FALSE 0 !(\read(r)) VAL [A={3:0}, B={4:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, g=42, id=-1, r=0] [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) VAL [A={3:0}, B={4:0}, \old(arg)={0:0}, \old(cond)=0, \result={0:0}, arg={0:0}, cond=0, g=42] [L19] 0 reach_error() VAL [A={3:0}, B={4:0}, \old(arg)={0:0}, \old(cond)=0, \result={0:0}, arg={0:0}, cond=0, g=42] - 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 46 locations, 3 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: 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, 0.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 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! [2024-08-13 16:47:11,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-08-13 16:47:12,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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