./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 2520d7ca 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-2520d7c-m [2024-07-17 19:29:43,179 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-17 19:29:43,240 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-17 19:29:43,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-17 19:29:43,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-17 19:29:43,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-17 19:29:43,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-17 19:29:43,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-17 19:29:43,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-17 19:29:43,290 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-17 19:29:43,290 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-17 19:29:43,290 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-17 19:29:43,291 INFO L153 SettingsManager]: * Use SBE=true [2024-07-17 19:29:43,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-17 19:29:43,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-17 19:29:43,292 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-17 19:29:43,292 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-17 19:29:43,292 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-17 19:29:43,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-17 19:29:43,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-17 19:29:43,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-17 19:29:43,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-17 19:29:43,293 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-17 19:29:43,294 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-17 19:29:43,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-17 19:29:43,294 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-17 19:29:43,294 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-17 19:29:43,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-17 19:29:43,295 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-17 19:29:43,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-17 19:29:43,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-17 19:29:43,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-17 19:29:43,296 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-17 19:29:43,296 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-17 19:29:43,296 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-17 19:29:43,297 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-17 19:29:43,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-17 19:29:43,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-17 19:29:43,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-17 19:29:43,297 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-17 19:29:43,297 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-17 19:29:43,298 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-17 19:29:43,298 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-07-17 19:29:43,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-17 19:29:43,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-17 19:29:43,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-17 19:29:43,530 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-07-17 19:29:43,530 INFO L274 PluginConnector]: Witness Parser initialized [2024-07-17 19:29:43,531 INFO L431 ainManager$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 [2024-07-17 19:29:43,615 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-17 19:29:43,616 INFO L274 PluginConnector]: CDTParser initialized [2024-07-17 19:29:43,616 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2024-07-17 19:29:44,619 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-17 19:29:44,837 INFO L384 CDTParser]: Found 1 translation units. [2024-07-17 19:29:44,837 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2024-07-17 19:29:44,853 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1630f645c/348b6ab12c454663b9fbd9db1bd4779e/FLAGbb38f5b03 [2024-07-17 19:29:44,867 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1630f645c/348b6ab12c454663b9fbd9db1bd4779e [2024-07-17 19:29:44,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-17 19:29:44,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-07-17 19:29:44,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-17 19:29:44,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-17 19:29:44,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-17 19:29:44,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 07:29:43" (1/2) ... [2024-07-17 19:29:44,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f0ffb4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 07:29:44, skipping insertion in model container [2024-07-17 19:29:44,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 07:29:43" (1/2) ... [2024-07-17 19:29:44,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2ae9314f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 07:29:44, skipping insertion in model container [2024-07-17 19:29:44,880 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 07:29:44" (2/2) ... [2024-07-17 19:29:44,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f0ffb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 07:29:44, skipping insertion in model container [2024-07-17 19:29:44,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 07:29:44" (2/2) ... [2024-07-17 19:29:44,881 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-07-17 19:29:44,910 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-07-17 19:29:44,911 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)) [2024-07-17 19:29:44,911 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-07-17 19:29:44,911 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-07-17 19:29:44,911 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-07-17 19:29:44,911 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-07-17 19:29:44,911 INFO L106 edCorrectnessWitness]: ghost_update [L702-L702] B_locked = 0; [2024-07-17 19:29:44,912 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] A_locked = 1; [2024-07-17 19:29:44,912 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] B_locked = 1; [2024-07-17 19:29:44,912 INFO L106 edCorrectnessWitness]: ghost_update [L708-L708] A_locked = 0; [2024-07-17 19:29:44,912 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] A_locked = 0; [2024-07-17 19:29:44,912 INFO L106 edCorrectnessWitness]: ghost_update [L703-L703] B_locked = 1; [2024-07-17 19:29:44,912 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] A_locked = 1; [2024-07-17 19:29:44,912 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 0; [2024-07-17 19:29:44,913 INFO L106 edCorrectnessWitness]: ghost_update [L707-L707] B_locked = 0; [2024-07-17 19:29:44,913 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] B_locked = 1; [2024-07-17 19:29:44,954 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-17 19:29:45,103 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] [2024-07-17 19:29:45,203 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-17 19:29:45,216 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-07-17 19:29:45,255 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 [2024-07-17 19:29:45,297 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-17 19:29:45,325 INFO L206 MainTranslator]: Completed translation [2024-07-17 19:29:45,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 07:29:45 WrapperNode [2024-07-17 19:29:45,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-17 19:29:45,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-17 19:29:45,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-17 19:29:45,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-17 19:29:45,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 07:29:45" (1/1) ... [2024-07-17 19:29:45,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 07:29:45" (1/1) ... [2024-07-17 19:29:45,352 INFO L138 Inliner]: procedures = 163, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2024-07-17 19:29:45,353 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-17 19:29:45,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-17 19:29:45,354 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-17 19:29:45,354 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-17 19:29:45,359 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 07:29:45" (1/1) ... [2024-07-17 19:29:45,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 07:29:45" (1/1) ... [2024-07-17 19:29:45,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 07:29:45" (1/1) ... [2024-07-17 19:29:45,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 07:29:45" (1/1) ... [2024-07-17 19:29:45,364 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 07:29:45" (1/1) ... [2024-07-17 19:29:45,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 07:29:45" (1/1) ... [2024-07-17 19:29:45,366 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 07:29:45" (1/1) ... [2024-07-17 19:29:45,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 07:29:45" (1/1) ... [2024-07-17 19:29:45,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-17 19:29:45,369 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-17 19:29:45,369 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-17 19:29:45,369 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-17 19:29:45,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 07:29:45" (1/1) ... [2024-07-17 19:29:45,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-17 19:29:45,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 19:29:45,405 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) [2024-07-17 19:29:45,412 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 [2024-07-17 19:29:45,435 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-07-17 19:29:45,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-17 19:29:45,436 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-07-17 19:29:45,436 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-07-17 19:29:45,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-17 19:29:45,437 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-07-17 19:29:45,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-17 19:29:45,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-17 19:29:45,442 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-17 19:29:45,556 INFO L244 CfgBuilder]: Building ICFG [2024-07-17 19:29:45,558 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-17 19:29:45,772 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-17 19:29:45,782 INFO L293 CfgBuilder]: Performing block encoding [2024-07-17 19:29:45,877 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-17 19:29:45,877 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-07-17 19:29:45,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 07:29:45 BoogieIcfgContainer [2024-07-17 19:29:45,877 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-17 19:29:45,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-17 19:29:45,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-17 19:29:45,881 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-17 19:29:45,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 07:29:43" (1/4) ... [2024-07-17 19:29:45,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d318d49 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 17.07 07:29:45, skipping insertion in model container [2024-07-17 19:29:45,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 07:29:44" (2/4) ... [2024-07-17 19:29:45,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d318d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 07:29:45, skipping insertion in model container [2024-07-17 19:29:45,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 07:29:45" (3/4) ... [2024-07-17 19:29:45,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d318d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 07:29:45, skipping insertion in model container [2024-07-17 19:29:45,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 07:29:45" (4/4) ... [2024-07-17 19:29:45,883 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2024-07-17 19:29:45,898 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-17 19:29:45,898 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-07-17 19:29:45,899 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-17 19:29:45,938 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-07-17 19:29:45,965 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 19:29:45,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-17 19:29:45,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 19:29:45,967 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) [2024-07-17 19:29:45,984 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 [2024-07-17 19:29:45,990 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-17 19:29:46,000 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-07-17 19:29:46,009 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;@1f64d844, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 19:29:46,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-07-17 19:29:46,148 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 19:29:46,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 19:29:46,155 INFO L85 PathProgramCache]: Analyzing trace with hash -190032051, now seen corresponding path program 1 times [2024-07-17 19:29:46,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 19:29:46,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805574216] [2024-07-17 19:29:46,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 19:29:46,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 19:29:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 19:29:46,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 19:29:46,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 19:29:46,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805574216] [2024-07-17 19:29:46,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805574216] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 19:29:46,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 19:29:46,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-07-17 19:29:46,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465135615] [2024-07-17 19:29:46,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 19:29:46,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-17 19:29:46,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 19:29:46,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-17 19:29:46,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-17 19:29:46,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 19:29:46,463 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 19:29:46,463 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) [2024-07-17 19:29:46,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 19:29:46,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 19:29:46,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-07-17 19:29:46,501 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 19:29:46,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 19:29:46,501 INFO L85 PathProgramCache]: Analyzing trace with hash 280020356, now seen corresponding path program 1 times [2024-07-17 19:29:46,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 19:29:46,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821838296] [2024-07-17 19:29:46,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 19:29:46,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 19:29:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-07-17 19:29:46,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-07-17 19:29:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-07-17 19:29:46,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-07-17 19:29:46,559 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-07-17 19:29:46,560 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-07-17 19:29:46,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-07-17 19:29:46,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-07-17 19:29:46,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-07-17 19:29:46,568 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-07-17 19:29:46,573 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-07-17 19:29:46,573 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-07-17 19:29:46,614 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-07-17 19:29:46,618 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-07-17 19:29:46,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 07:29:46 BasicIcfg [2024-07-17 19:29:46,620 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-07-17 19:29:46,621 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-07-17 19:29:46,621 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-07-17 19:29:46,621 INFO L274 PluginConnector]: Witness Printer initialized [2024-07-17 19:29:46,622 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 07:29:45" (4/5) ... [2024-07-17 19:29:46,622 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2024-07-17 19:29:46,684 INFO L149 WitnessManager]: Wrote witness to /storage/repos/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i-witness.graphml [2024-07-17 19:29:46,687 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-07-17 19:29:46,688 INFO L158 Benchmark]: Toolchain (without parser) took 1819.39ms. Allocated memory was 138.4MB in the beginning and 195.0MB in the end (delta: 56.6MB). Free memory was 79.5MB in the beginning and 159.2MB in the end (delta: -79.7MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-07-17 19:29:46,688 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 138.4MB. Free memory was 105.0MB in the beginning and 104.9MB in the end (delta: 9.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-07-17 19:29:46,688 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory was 101.1MB in the beginning and 101.0MB in the end (delta: 85.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-07-17 19:29:46,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.19ms. Allocated memory is still 138.4MB. Free memory was 79.1MB in the beginning and 53.1MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-07-17 19:29:46,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.06ms. Allocated memory is still 138.4MB. Free memory was 53.1MB in the beginning and 51.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-17 19:29:46,689 INFO L158 Benchmark]: Boogie Preprocessor took 15.28ms. Allocated memory is still 138.4MB. Free memory was 51.0MB in the beginning and 49.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-17 19:29:46,690 INFO L158 Benchmark]: RCFGBuilder took 508.21ms. Allocated memory is still 138.4MB. Free memory was 49.4MB in the beginning and 91.8MB in the end (delta: -42.4MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2024-07-17 19:29:46,690 INFO L158 Benchmark]: TraceAbstraction took 741.37ms. Allocated memory is still 138.4MB. Free memory was 90.9MB in the beginning and 41.5MB in the end (delta: 49.5MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-07-17 19:29:46,690 INFO L158 Benchmark]: Witness Printer took 66.57ms. Allocated memory was 138.4MB in the beginning and 195.0MB in the end (delta: 56.6MB). Free memory was 41.2MB in the beginning and 159.2MB in the end (delta: -118.0MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2024-07-17 19:29:46,693 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 138.4MB. Free memory was 105.0MB in the beginning and 104.9MB in the end (delta: 9.3kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory was 101.1MB in the beginning and 101.0MB in the end (delta: 85.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.19ms. Allocated memory is still 138.4MB. Free memory was 79.1MB in the beginning and 53.1MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.06ms. Allocated memory is still 138.4MB. Free memory was 53.1MB in the beginning and 51.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.28ms. Allocated memory is still 138.4MB. Free memory was 51.0MB in the beginning and 49.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.21ms. Allocated memory is still 138.4MB. Free memory was 49.4MB in the beginning and 91.8MB in the end (delta: -42.4MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 741.37ms. Allocated memory is still 138.4MB. Free memory was 90.9MB in the beginning and 41.5MB in the end (delta: 49.5MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 66.57ms. Allocated memory was 138.4MB in the beginning and 195.0MB in the end (delta: 56.6MB). Free memory was 41.2MB in the beginning and 159.2MB in the end (delta: -118.0MB). Peak memory consumption was 10.4MB. 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: 105, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 17, dependent conditional: 0, dependent unconditional: 17, 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: 105, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 17, dependent conditional: 0, dependent unconditional: 17, 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 || (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! [2024-07-17 19:29:46,721 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 [2024-07-17 19:29:46,921 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