./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.2024-06-19_11-23-25.files/mutex-meet-nonrel/36-apron_17-traces-rpb-litmus_unknown_1_pos.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2cc22fce 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.2024-06-19_11-23-25.files/mutex-meet-nonrel/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-2cc22fc-m [2024-07-22 22:19:31,239 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-22 22:19:31,301 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-22 22:19:31,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-22 22:19:31,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-22 22:19:31,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-22 22:19:31,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-22 22:19:31,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-22 22:19:31,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-22 22:19:31,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-22 22:19:31,335 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-22 22:19:31,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-22 22:19:31,336 INFO L153 SettingsManager]: * Use SBE=true [2024-07-22 22:19:31,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-22 22:19:31,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-22 22:19:31,337 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-22 22:19:31,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-22 22:19:31,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-22 22:19:31,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-22 22:19:31,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-22 22:19:31,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-22 22:19:31,339 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-22 22:19:31,339 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-22 22:19:31,339 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-22 22:19:31,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-22 22:19:31,339 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-22 22:19:31,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-22 22:19:31,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-22 22:19:31,340 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-22 22:19:31,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-22 22:19:31,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-22 22:19:31,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-22 22:19:31,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-22 22:19:31,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-22 22:19:31,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-22 22:19:31,342 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-22 22:19:31,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-22 22:19:31,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-22 22:19:31,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-22 22:19:31,343 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-22 22:19:31,343 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-22 22:19:31,343 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-22 22:19:31,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-07-22 22:19:31,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-22 22:19:31,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-22 22:19:31,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-22 22:19:31,557 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-07-22 22:19:31,559 INFO L274 PluginConnector]: Witness Parser initialized [2024-07-22 22:19:31,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/36-apron_17-traces-rpb-litmus_unknown_1_pos.yml/witness.yml [2024-07-22 22:19:31,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-22 22:19:31,674 INFO L274 PluginConnector]: CDTParser initialized [2024-07-22 22:19:31,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2024-07-22 22:19:32,736 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-22 22:19:32,960 INFO L384 CDTParser]: Found 1 translation units. [2024-07-22 22:19:32,960 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2024-07-22 22:19:32,969 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/54c672d49/a831cf0103fb4155af21c83d73a2b3f0/FLAG2a51c1d33 [2024-07-22 22:19:32,978 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/54c672d49/a831cf0103fb4155af21c83d73a2b3f0 [2024-07-22 22:19:32,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-22 22:19:32,979 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-07-22 22:19:32,980 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-22 22:19:32,980 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-22 22:19:32,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-22 22:19:32,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.07 10:19:31" (1/2) ... [2024-07-22 22:19:32,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@323fe9bd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 10:19:32, skipping insertion in model container [2024-07-22 22:19:32,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.07 10:19:31" (1/2) ... [2024-07-22 22:19:32,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@730645ee and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 10:19:32, skipping insertion in model container [2024-07-22 22:19:32,986 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:19:32" (2/2) ... [2024-07-22 22:19:32,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@323fe9bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:19:32, skipping insertion in model container [2024-07-22 22:19:32,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:19:32" (2/2) ... [2024-07-22 22:19:32,987 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-07-22 22:19:33,017 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-07-22 22:19:33,018 INFO L97 edCorrectnessWitness]: Location invariant before [L698-L698] ((! multithreaded || (B_locked || (g == 17 || g == 42))) && (! multithreaded || (A_locked || (g == 17 || g == 42)))) && (! multithreaded || (g == 17 || g == 42)) [2024-07-22 22:19:33,018 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-07-22 22:19:33,018 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-07-22 22:19:33,018 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-07-22 22:19:33,019 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] B_locked = 1; [2024-07-22 22:19:33,019 INFO L106 edCorrectnessWitness]: ghost_update [L708-L708] A_locked = 0; [2024-07-22 22:19:33,019 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] A_locked = 1; [2024-07-22 22:19:33,019 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-07-22 22:19:33,019 INFO L106 edCorrectnessWitness]: ghost_update [L707-L707] B_locked = 0; [2024-07-22 22:19:33,019 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] B_locked = 1; [2024-07-22 22:19:33,019 INFO L106 edCorrectnessWitness]: ghost_update [L703-L703] B_locked = 1; [2024-07-22 22:19:33,019 INFO L106 edCorrectnessWitness]: ghost_update [L702-L702] B_locked = 0; [2024-07-22 22:19:33,020 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] A_locked = 1; [2024-07-22 22:19:33,020 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] A_locked = 0; [2024-07-22 22:19:33,020 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 0; [2024-07-22 22:19:33,053 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-22 22:19:33,199 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] [2024-07-22 22:19:33,312 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-22 22:19:33,322 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-07-22 22:19:33,352 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 [2024-07-22 22:19:33,414 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-22 22:19:33,445 INFO L206 MainTranslator]: Completed translation [2024-07-22 22:19:33,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:19:33 WrapperNode [2024-07-22 22:19:33,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-22 22:19:33,447 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-22 22:19:33,447 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-22 22:19:33,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-22 22:19:33,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:19:33" (1/1) ... [2024-07-22 22:19:33,475 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:19:33" (1/1) ... [2024-07-22 22:19:33,497 INFO L138 Inliner]: procedures = 163, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2024-07-22 22:19:33,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-22 22:19:33,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-22 22:19:33,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-22 22:19:33,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-22 22:19:33,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:19:33" (1/1) ... [2024-07-22 22:19:33,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:19:33" (1/1) ... [2024-07-22 22:19:33,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:19:33" (1/1) ... [2024-07-22 22:19:33,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:19:33" (1/1) ... [2024-07-22 22:19:33,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:19:33" (1/1) ... [2024-07-22 22:19:33,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:19:33" (1/1) ... [2024-07-22 22:19:33,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:19:33" (1/1) ... [2024-07-22 22:19:33,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:19:33" (1/1) ... [2024-07-22 22:19:33,528 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-22 22:19:33,528 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-22 22:19:33,528 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-22 22:19:33,529 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-22 22:19:33,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:19:33" (1/1) ... [2024-07-22 22:19:33,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-22 22:19:33,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 22:19:33,551 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) [2024-07-22 22:19:33,577 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 [2024-07-22 22:19:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-07-22 22:19:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-22 22:19:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-07-22 22:19:33,591 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-07-22 22:19:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-22 22:19:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-07-22 22:19:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-22 22:19:33,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-22 22:19:33,596 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-22 22:19:33,691 INFO L244 CfgBuilder]: Building ICFG [2024-07-22 22:19:33,693 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-22 22:19:33,825 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-22 22:19:33,825 INFO L293 CfgBuilder]: Performing block encoding [2024-07-22 22:19:33,928 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-22 22:19:33,928 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-07-22 22:19:33,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:19:33 BoogieIcfgContainer [2024-07-22 22:19:33,929 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-22 22:19:33,930 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-22 22:19:33,930 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-22 22:19:33,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-22 22:19:33,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.07 10:19:31" (1/4) ... [2024-07-22 22:19:33,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb9d2bf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.07 10:19:33, skipping insertion in model container [2024-07-22 22:19:33,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:19:32" (2/4) ... [2024-07-22 22:19:33,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb9d2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:19:33, skipping insertion in model container [2024-07-22 22:19:33,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:19:33" (3/4) ... [2024-07-22 22:19:33,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb9d2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:19:33, skipping insertion in model container [2024-07-22 22:19:33,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:19:33" (4/4) ... [2024-07-22 22:19:33,935 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2024-07-22 22:19:33,948 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-22 22:19:33,949 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-07-22 22:19:33,949 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-22 22:19:33,970 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-07-22 22:19:33,998 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-22 22:19:33,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-22 22:19:33,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 22:19:33,999 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) [2024-07-22 22:19:34,000 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 [2024-07-22 22:19:34,024 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-22 22:19:34,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-07-22 22:19:34,038 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;@7bcf337d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-22 22:19:34,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-07-22 22:19:34,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-22 22:19:34,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 22:19:34,201 INFO L85 PathProgramCache]: Analyzing trace with hash -190032051, now seen corresponding path program 1 times [2024-07-22 22:19:34,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 22:19:34,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621053016] [2024-07-22 22:19:34,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 22:19:34,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 22:19:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 22:19:34,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 22:19:34,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 22:19:34,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621053016] [2024-07-22 22:19:34,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621053016] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-22 22:19:34,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-22 22:19:34,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-07-22 22:19:34,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500337173] [2024-07-22 22:19:34,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-22 22:19:34,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-22 22:19:34,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 22:19:34,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-22 22:19:34,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-22 22:19:34,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 22:19:34,501 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 22:19:34,502 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) [2024-07-22 22:19:34,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 22:19:34,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-22 22:19:34,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-07-22 22:19:34,537 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-22 22:19:34,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 22:19:34,539 INFO L85 PathProgramCache]: Analyzing trace with hash 280020356, now seen corresponding path program 1 times [2024-07-22 22:19:34,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 22:19:34,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744441093] [2024-07-22 22:19:34,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 22:19:34,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 22:19:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-07-22 22:19:34,588 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-07-22 22:19:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-07-22 22:19:34,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-07-22 22:19:34,624 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-07-22 22:19:34,625 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-07-22 22:19:34,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-07-22 22:19:34,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-07-22 22:19:34,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-07-22 22:19:34,631 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-07-22 22:19:34,635 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-07-22 22:19:34,635 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-07-22 22:19:34,677 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-07-22 22:19:34,680 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-07-22 22:19:34,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 10:19:34 BasicIcfg [2024-07-22 22:19:34,681 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-07-22 22:19:34,681 INFO L158 Benchmark]: Toolchain (without parser) took 1701.78ms. Allocated memory was 163.6MB in the beginning and 213.9MB in the end (delta: 50.3MB). Free memory was 130.4MB in the beginning and 145.9MB in the end (delta: -15.5MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2024-07-22 22:19:34,682 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 163.6MB. Free memory is still 107.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-07-22 22:19:34,684 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 163.6MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-07-22 22:19:34,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.76ms. Allocated memory is still 163.6MB. Free memory was 130.4MB in the beginning and 103.7MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-07-22 22:19:34,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.69ms. Allocated memory is still 163.6MB. Free memory was 103.7MB in the beginning and 102.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-22 22:19:34,688 INFO L158 Benchmark]: Boogie Preprocessor took 29.69ms. Allocated memory is still 163.6MB. Free memory was 102.1MB in the beginning and 100.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-22 22:19:34,688 INFO L158 Benchmark]: RCFGBuilder took 400.45ms. Allocated memory is still 163.6MB. Free memory was 100.5MB in the beginning and 73.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-07-22 22:19:34,689 INFO L158 Benchmark]: TraceAbstraction took 750.64ms. Allocated memory was 163.6MB in the beginning and 213.9MB in the end (delta: 50.3MB). Free memory was 72.2MB in the beginning and 145.9MB in the end (delta: -73.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-07-22 22:19:34,690 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 0.15ms. Allocated memory is still 163.6MB. Free memory is still 107.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 163.6MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 465.76ms. Allocated memory is still 163.6MB. Free memory was 130.4MB in the beginning and 103.7MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.69ms. Allocated memory is still 163.6MB. Free memory was 103.7MB in the beginning and 102.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.69ms. Allocated memory is still 163.6MB. Free memory was 102.1MB in the beginning and 100.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 400.45ms. Allocated memory is still 163.6MB. Free memory was 100.5MB in the beginning and 73.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 750.64ms. Allocated memory was 163.6MB in the beginning and 213.9MB in the end (delta: 50.3MB). Free memory was 72.2MB in the beginning and 145.9MB in the end (delta: -73.6MB). 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: 127, independent: 85, independent conditional: 0, independent unconditional: 85, dependent: 42, dependent conditional: 0, dependent unconditional: 42, 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: 127, independent: 85, independent conditional: 0, independent unconditional: 85, dependent: 42, dependent conditional: 0, dependent unconditional: 42, 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 A_locked = 0; [L1] 0 //@ ghost int multithreaded = 0; [L1] 0 //@ ghost int B_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 || (B_locked || ((g == 17) || (g == 42)))) && (!multithreaded || (A_locked || ((g == 17) || (g == 42))))) && (!multithreaded || ((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: 0.6s, 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, 0.1s 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! [2024-07-22 22:19:34,712 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 [2024-07-22 22:19:34,919 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