./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/18_read_write_lock-pthread.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c091e2ee Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/18_read_write_lock-pthread.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-c091e2e-m [2024-08-13 18:08:38,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-13 18:08:38,701 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-13 18:08:38,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-13 18:08:38,707 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-13 18:08:38,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-13 18:08:38,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-13 18:08:38,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-13 18:08:38,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-13 18:08:38,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-13 18:08:38,739 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-13 18:08:38,740 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-13 18:08:38,740 INFO L153 SettingsManager]: * Use SBE=true [2024-08-13 18:08:38,740 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-13 18:08:38,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-13 18:08:38,742 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-13 18:08:38,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-13 18:08:38,743 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-13 18:08:38,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-13 18:08:38,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-13 18:08:38,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-13 18:08:38,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-13 18:08:38,747 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-13 18:08:38,747 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-13 18:08:38,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-13 18:08:38,748 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-13 18:08:38,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-13 18:08:38,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-13 18:08:38,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-13 18:08:38,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-13 18:08:38,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 18:08:38,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-13 18:08:38,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-13 18:08:38,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-13 18:08:38,750 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-13 18:08:38,750 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-13 18:08:38,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-13 18:08:38,751 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-13 18:08:38,751 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-13 18:08:38,752 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-13 18:08:38,752 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-13 18:08:38,752 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-13 18:08:38,753 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-08-13 18:08:38,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-13 18:08:38,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-13 18:08:38,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-13 18:08:38,989 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-13 18:08:38,990 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-13 18:08:38,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/18_read_write_lock-pthread.yml/witness.yml [2024-08-13 18:08:39,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-13 18:08:39,152 INFO L274 PluginConnector]: CDTParser initialized [2024-08-13 18:08:39,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i [2024-08-13 18:08:40,619 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-13 18:08:40,843 INFO L384 CDTParser]: Found 1 translation units. [2024-08-13 18:08:40,844 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i [2024-08-13 18:08:40,857 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/28f1af45d/5941639461564bb6a513f435928f19c8/FLAGdb7797a3e [2024-08-13 18:08:41,171 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/28f1af45d/5941639461564bb6a513f435928f19c8 [2024-08-13 18:08:41,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-13 18:08:41,172 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-13 18:08:41,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-13 18:08:41,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-13 18:08:41,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-13 18:08:41,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 06:08:39" (1/2) ... [2024-08-13 18:08:41,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a05682 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 06:08:41, skipping insertion in model container [2024-08-13 18:08:41,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 06:08:39" (1/2) ... [2024-08-13 18:08:41,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3db7f063 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 06:08:41, skipping insertion in model container [2024-08-13 18:08:41,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 06:08:41" (2/2) ... [2024-08-13 18:08:41,182 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a05682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:08:41, skipping insertion in model container [2024-08-13 18:08:41,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 06:08:41" (2/2) ... [2024-08-13 18:08:41,182 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-13 18:08:41,212 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-13 18:08:41,213 INFO L97 edCorrectnessWitness]: Location invariant before [L717-L717] (((! multithreaded || (x == 0 || x == 3)) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (rwlock_locked || (x == 0 || x == 3))) [2024-08-13 18:08:41,213 INFO L103 edCorrectnessWitness]: ghost_variable rwlock_locked = 0 [2024-08-13 18:08:41,213 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-13 18:08:41,213 INFO L106 edCorrectnessWitness]: ghost_update [L710-L710] rwlock_locked = 0; [2024-08-13 18:08:41,213 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] rwlock_locked = 1; [2024-08-13 18:08:41,214 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] rwlock_locked = 0; [2024-08-13 18:08:41,214 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] rwlock_locked = 1; [2024-08-13 18:08:41,214 INFO L106 edCorrectnessWitness]: ghost_update [L716-L716] multithreaded = 1; [2024-08-13 18:08:41,248 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-13 18:08:41,548 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 18:08:41,562 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-13 18:08:41,631 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 18:08:41,659 INFO L206 MainTranslator]: Completed translation [2024-08-13 18:08:41,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:08:41 WrapperNode [2024-08-13 18:08:41,662 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-13 18:08:41,663 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-13 18:08:41,663 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-13 18:08:41,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-13 18:08:41,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:08:41" (1/1) ... [2024-08-13 18:08:41,686 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:08:41" (1/1) ... [2024-08-13 18:08:41,708 INFO L138 Inliner]: procedures = 165, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-08-13 18:08:41,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-13 18:08:41,709 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-13 18:08:41,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-13 18:08:41,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-13 18:08:41,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:08:41" (1/1) ... [2024-08-13 18:08:41,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:08:41" (1/1) ... [2024-08-13 18:08:41,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:08:41" (1/1) ... [2024-08-13 18:08:41,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:08:41" (1/1) ... [2024-08-13 18:08:41,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:08:41" (1/1) ... [2024-08-13 18:08:41,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:08:41" (1/1) ... [2024-08-13 18:08:41,734 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:08:41" (1/1) ... [2024-08-13 18:08:41,739 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:08:41" (1/1) ... [2024-08-13 18:08:41,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-13 18:08:41,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-13 18:08:41,741 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-13 18:08:41,742 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-13 18:08:41,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:08:41" (1/1) ... [2024-08-13 18:08:41,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 18:08:41,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 18:08:41,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-13 18:08:41,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-13 18:08:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2024-08-13 18:08:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-08-13 18:08:41,807 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-08-13 18:08:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2024-08-13 18:08:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-13 18:08:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-13 18:08:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2024-08-13 18:08:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-13 18:08:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-13 18:08:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-13 18:08:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-13 18:08:41,809 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-08-13 18:08:41,900 INFO L244 CfgBuilder]: Building ICFG [2024-08-13 18:08:41,902 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-13 18:08:42,007 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-08-13 18:08:42,008 INFO L293 CfgBuilder]: Performing block encoding [2024-08-13 18:08:42,126 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-13 18:08:42,126 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-13 18:08:42,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 06:08:42 BoogieIcfgContainer [2024-08-13 18:08:42,127 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-13 18:08:42,129 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-13 18:08:42,129 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-13 18:08:42,132 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-13 18:08:42,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 06:08:39" (1/4) ... [2024-08-13 18:08:42,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8bd7b2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.08 06:08:42, skipping insertion in model container [2024-08-13 18:08:42,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 06:08:41" (2/4) ... [2024-08-13 18:08:42,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8bd7b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 06:08:42, skipping insertion in model container [2024-08-13 18:08:42,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 06:08:41" (3/4) ... [2024-08-13 18:08:42,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8bd7b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 06:08:42, skipping insertion in model container [2024-08-13 18:08:42,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 06:08:42" (4/4) ... [2024-08-13 18:08:42,134 INFO L112 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock-pthread.i [2024-08-13 18:08:42,149 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-13 18:08:42,150 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-13 18:08:42,150 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-13 18:08:42,172 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-13 18:08:42,203 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 18:08:42,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 18:08:42,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 18:08:42,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-13 18:08:42,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-13 18:08:42,287 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 18:08:42,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-13 18:08:42,335 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;@4a16242d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 18:08:42,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-13 18:08:42,537 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 18:08:42,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 18:08:42,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2055427478, now seen corresponding path program 1 times [2024-08-13 18:08:42,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 18:08:42,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112919879] [2024-08-13 18:08:42,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 18:08:42,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 18:08:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 18:08:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 18:08:43,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 18:08:43,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112919879] [2024-08-13 18:08:43,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112919879] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 18:08:43,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 18:08:43,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-13 18:08:43,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370308157] [2024-08-13 18:08:43,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 18:08:43,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 18:08:43,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 18:08:43,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 18:08:43,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 18:08:43,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 18:08:43,081 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 18:08:43,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 18:08:43,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 18:08:43,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 18:08:43,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-13 18:08:43,128 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 18:08:43,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 18:08:43,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1862455901, now seen corresponding path program 1 times [2024-08-13 18:08:43,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 18:08:43,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560413631] [2024-08-13 18:08:43,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 18:08:43,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 18:08:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 18:08:43,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 18:08:43,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 18:08:43,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560413631] [2024-08-13 18:08:43,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560413631] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 18:08:43,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 18:08:43,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-08-13 18:08:43,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927482247] [2024-08-13 18:08:43,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 18:08:43,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 18:08:43,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 18:08:43,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 18:08:43,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 18:08:43,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 18:08:43,180 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 18:08:43,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 18:08:43,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 18:08:43,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 18:08:43,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 18:08:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 18:08:43,205 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-08-13 18:08:43,205 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-08-13 18:08:43,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-13 18:08:43,212 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-13 18:08:43,214 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-08-13 18:08:43,214 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-08-13 18:08:43,216 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-08-13 18:08:43,217 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-08-13 18:08:43,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 06:08:43 BasicIcfg [2024-08-13 18:08:43,218 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-13 18:08:43,218 INFO L158 Benchmark]: Toolchain (without parser) took 2046.03ms. Allocated memory was 167.8MB in the beginning and 247.5MB in the end (delta: 79.7MB). Free memory was 92.4MB in the beginning and 184.7MB in the end (delta: -92.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 18:08:43,219 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 167.8MB. Free memory was 119.7MB in the beginning and 119.5MB in the end (delta: 243.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 18:08:43,219 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 167.8MB. Free memory was 137.7MB in the beginning and 137.5MB in the end (delta: 228.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 18:08:43,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 489.00ms. Allocated memory was 167.8MB in the beginning and 247.5MB in the end (delta: 79.7MB). Free memory was 92.2MB in the beginning and 205.3MB in the end (delta: -113.1MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-08-13 18:08:43,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.51ms. Allocated memory is still 247.5MB. Free memory was 205.3MB in the beginning and 203.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-13 18:08:43,220 INFO L158 Benchmark]: Boogie Preprocessor took 31.47ms. Allocated memory is still 247.5MB. Free memory was 203.2MB in the beginning and 202.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-13 18:08:43,220 INFO L158 Benchmark]: RCFGBuilder took 385.71ms. Allocated memory is still 247.5MB. Free memory was 202.1MB in the beginning and 173.8MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-08-13 18:08:43,221 INFO L158 Benchmark]: TraceAbstraction took 1089.10ms. Allocated memory is still 247.5MB. Free memory was 172.8MB in the beginning and 184.7MB in the end (delta: -12.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 18:08:43,222 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.18ms. Allocated memory is still 167.8MB. Free memory was 119.7MB in the beginning and 119.5MB in the end (delta: 243.4kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 167.8MB. Free memory was 137.7MB in the beginning and 137.5MB in the end (delta: 228.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 489.00ms. Allocated memory was 167.8MB in the beginning and 247.5MB in the end (delta: 79.7MB). Free memory was 92.2MB in the beginning and 205.3MB in the end (delta: -113.1MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.51ms. Allocated memory is still 247.5MB. Free memory was 205.3MB in the beginning and 203.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.47ms. Allocated memory is still 247.5MB. Free memory was 203.2MB in the beginning and 202.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 385.71ms. Allocated memory is still 247.5MB. Free memory was 202.1MB in the beginning and 173.8MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1089.10ms. Allocated memory is still 247.5MB. Free memory was 172.8MB in the beginning and 184.7MB in the end (delta: -12.0MB). 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: 80, independent: 76, independent conditional: 15, independent unconditional: 61, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 80, independent: 76, independent conditional: 15, independent unconditional: 61, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 80, independent: 76, independent conditional: 15, independent unconditional: 61, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 81, independent: 76, independent conditional: 0, independent unconditional: 76, dependent: 5, dependent conditional: 1, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 81, independent: 76, independent conditional: 0, independent unconditional: 76, dependent: 5, dependent conditional: 1, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 81, independent: 76, independent conditional: 0, independent unconditional: 76, dependent: 5, dependent conditional: 1, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 65, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 65, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 16, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 158, independent: 135, independent conditional: 0, independent unconditional: 135, dependent: 23, dependent conditional: 4, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 81, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 65, unknown conditional: 1, unknown unconditional: 64] , Statistics on independence cache: Total cache size (in pairs): 65, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 4, Negative conditional cache size: 1, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 15, Number of trivial persistent sets: 15, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 64, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 80, independent: 76, independent conditional: 15, independent unconditional: 61, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 80, independent: 76, independent conditional: 15, independent unconditional: 61, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 80, independent: 76, independent conditional: 15, independent unconditional: 61, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 81, independent: 76, independent conditional: 0, independent unconditional: 76, dependent: 5, dependent conditional: 1, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 81, independent: 76, independent conditional: 0, independent unconditional: 76, dependent: 5, dependent conditional: 1, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 81, independent: 76, independent conditional: 0, independent unconditional: 76, dependent: 5, dependent conditional: 1, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 65, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 65, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 16, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 158, independent: 135, independent conditional: 0, independent unconditional: 135, dependent: 23, dependent conditional: 4, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 81, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 65, unknown conditional: 1, unknown unconditional: 64] , Statistics on independence cache: Total cache size (in pairs): 65, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 4, Negative conditional cache size: 1, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 0 - PositiveResult [Line: 717]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 29 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, 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: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 85 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-08-13 18:08:43,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-08-13 18:08:43,447 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 Result: TRUE