./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 --validate ./goblint.2024-09-02_08-21-23.files/protection-ghost/18_read_write_lock-pthread.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e94c40da 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.2024-09-02_08-21-23.files/protection-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.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-e94c40d-m [2024-09-23 06:31:16,139 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-23 06:31:16,198 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-23 06:31:16,202 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-23 06:31:16,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-23 06:31:16,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-23 06:31:16,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-23 06:31:16,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-23 06:31:16,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-23 06:31:16,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-23 06:31:16,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-23 06:31:16,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-23 06:31:16,251 INFO L153 SettingsManager]: * Use SBE=true [2024-09-23 06:31:16,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-23 06:31:16,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-23 06:31:16,252 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-23 06:31:16,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-23 06:31:16,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-23 06:31:16,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-23 06:31:16,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-23 06:31:16,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-23 06:31:16,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-23 06:31:16,264 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-23 06:31:16,264 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-23 06:31:16,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-23 06:31:16,265 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-23 06:31:16,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-23 06:31:16,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-23 06:31:16,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-23 06:31:16,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-23 06:31:16,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 06:31:16,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-23 06:31:16,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-23 06:31:16,267 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-23 06:31:16,267 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-23 06:31:16,267 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-23 06:31:16,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-23 06:31:16,268 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-23 06:31:16,268 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-23 06:31:16,268 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-23 06:31:16,268 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-23 06:31:16,269 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-23 06:31:16,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-23 06:31:16,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-23 06:31:16,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-23 06:31:16,551 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-23 06:31:16,552 INFO L274 PluginConnector]: CDTParser initialized [2024-09-23 06:31:16,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i [2024-09-23 06:31:18,008 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-23 06:31:18,239 INFO L384 CDTParser]: Found 1 translation units. [2024-09-23 06:31:18,240 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i [2024-09-23 06:31:18,253 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/84264dea4/a2c7559bacf64905bc7539a8bb60949a/FLAG0df70a5ca [2024-09-23 06:31:18,565 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/84264dea4/a2c7559bacf64905bc7539a8bb60949a [2024-09-23 06:31:18,569 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-23 06:31:18,569 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-23 06:31:18,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-ghost/18_read_write_lock-pthread.yml/witness.yml [2024-09-23 06:31:18,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-23 06:31:18,635 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-23 06:31:18,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-23 06:31:18,636 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-23 06:31:18,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-23 06:31:18,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 06:31:18" (1/2) ... [2024-09-23 06:31:18,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c36ce16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 06:31:18, skipping insertion in model container [2024-09-23 06:31:18,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 06:31:18" (1/2) ... [2024-09-23 06:31:18,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2606e124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 06:31:18, skipping insertion in model container [2024-09-23 06:31:18,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 06:31:18" (2/2) ... [2024-09-23 06:31:18,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c36ce16 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:31:18, skipping insertion in model container [2024-09-23 06:31:18,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 06:31:18" (2/2) ... [2024-09-23 06:31:18,678 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-23 06:31:18,679 INFO L1541 ArrayList]: Location invariant before [L717-L717] (! multithreaded || (x == 0 || x == 3)) && (! multithreaded || (y == 0 || y == 3)) [2024-09-23 06:31:18,679 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-23 06:31:18,679 INFO L1541 ArrayList]: ghost_variable rwlock_locked = 0 [2024-09-23 06:31:18,680 INFO L1541 ArrayList]: ghost_update [L690-L690] rwlock_locked = 1; [2024-09-23 06:31:18,680 INFO L1541 ArrayList]: ghost_update [L692-L692] rwlock_locked = 0; [2024-09-23 06:31:18,680 INFO L1541 ArrayList]: ghost_update [L716-L716] multithreaded = 1; [2024-09-23 06:31:18,680 INFO L1541 ArrayList]: ghost_update [L696-L696] rwlock_locked = 1; [2024-09-23 06:31:18,680 INFO L1541 ArrayList]: ghost_update [L710-L710] rwlock_locked = 0; [2024-09-23 06:31:18,719 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-23 06:31:19,029 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i[30915,30928] [2024-09-23 06:31:19,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 06:31:19,056 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-23 06:31:19,130 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i[30915,30928] Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-23 06:31:19,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 06:31:19,173 INFO L204 MainTranslator]: Completed translation [2024-09-23 06:31:19,173 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:31:19 WrapperNode [2024-09-23 06:31:19,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-23 06:31:19,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-23 06:31:19,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-23 06:31:19,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-23 06:31:19,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:31:19" (1/1) ... [2024-09-23 06:31:19,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:31:19" (1/1) ... [2024-09-23 06:31:19,229 INFO L138 Inliner]: procedures = 165, calls = 32, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2024-09-23 06:31:19,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-23 06:31:19,232 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-23 06:31:19,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-23 06:31:19,233 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-23 06:31:19,241 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:31:19" (1/1) ... [2024-09-23 06:31:19,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:31:19" (1/1) ... [2024-09-23 06:31:19,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:31:19" (1/1) ... [2024-09-23 06:31:19,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:31:19" (1/1) ... [2024-09-23 06:31:19,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:31:19" (1/1) ... [2024-09-23 06:31:19,257 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:31:19" (1/1) ... [2024-09-23 06:31:19,262 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:31:19" (1/1) ... [2024-09-23 06:31:19,263 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:31:19" (1/1) ... [2024-09-23 06:31:19,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-23 06:31:19,272 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-23 06:31:19,272 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-23 06:31:19,272 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-23 06:31:19,273 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:31:19" (1/1) ... [2024-09-23 06:31:19,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 06:31:19,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 06:31:19,309 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) [2024-09-23 06:31:19,316 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 [2024-09-23 06:31:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2024-09-23 06:31:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-09-23 06:31:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-09-23 06:31:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2024-09-23 06:31:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-23 06:31:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-23 06:31:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2024-09-23 06:31:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-23 06:31:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-23 06:31:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-23 06:31:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-23 06:31:19,367 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-23 06:31:19,499 INFO L242 CfgBuilder]: Building ICFG [2024-09-23 06:31:19,501 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-23 06:31:19,632 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-23 06:31:19,632 INFO L291 CfgBuilder]: Performing block encoding [2024-09-23 06:31:19,789 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-23 06:31:19,790 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-23 06:31:19,791 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 06:31:19 BoogieIcfgContainer [2024-09-23 06:31:19,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-23 06:31:19,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-23 06:31:19,796 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-23 06:31:19,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-23 06:31:19,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.09 06:31:18" (1/4) ... [2024-09-23 06:31:19,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206a49ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 06:31:19, skipping insertion in model container [2024-09-23 06:31:19,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 06:31:18" (2/4) ... [2024-09-23 06:31:19,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206a49ed and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.09 06:31:19, skipping insertion in model container [2024-09-23 06:31:19,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:31:19" (3/4) ... [2024-09-23 06:31:19,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206a49ed and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.09 06:31:19, skipping insertion in model container [2024-09-23 06:31:19,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 06:31:19" (4/4) ... [2024-09-23 06:31:19,803 INFO L112 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock-pthread.i [2024-09-23 06:31:19,820 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-23 06:31:19,820 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-09-23 06:31:19,821 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-23 06:31:19,851 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-09-23 06:31:19,895 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 06:31:19,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 06:31:19,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 06:31:19,899 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) [2024-09-23 06:31:19,901 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 [2024-09-23 06:31:19,929 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 06:31:19,959 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-23 06:31:19,965 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@717b1e97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 06:31:19,966 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-23 06:31:20,064 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 06:31:20,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 06:31:20,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1311550406, now seen corresponding path program 1 times [2024-09-23 06:31:20,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 06:31:20,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763560354] [2024-09-23 06:31:20,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 06:31:20,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 06:31:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 06:31:20,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 06:31:20,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 06:31:20,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763560354] [2024-09-23 06:31:20,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763560354] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 06:31:20,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 06:31:20,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-23 06:31:20,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056149403] [2024-09-23 06:31:20,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 06:31:20,428 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-23 06:31:20,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 06:31:20,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-23 06:31:20,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-23 06:31:20,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 06:31:20,466 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 06:31:20,468 INFO L475 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) [2024-09-23 06:31:20,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 06:31:20,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 06:31:20,517 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-23 06:31:20,518 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 06:31:20,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 06:31:20,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2080698893, now seen corresponding path program 1 times [2024-09-23 06:31:20,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 06:31:20,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935533618] [2024-09-23 06:31:20,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 06:31:20,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 06:31:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 06:31:20,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 06:31:20,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 06:31:20,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935533618] [2024-09-23 06:31:20,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935533618] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 06:31:20,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 06:31:20,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 06:31:20,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697720809] [2024-09-23 06:31:20,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 06:31:20,672 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 06:31:20,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 06:31:20,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 06:31:20,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 06:31:20,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 06:31:20,674 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 06:31:20,674 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-09-23 06:31:20,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 06:31:20,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 06:31:20,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 06:31:20,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 06:31:20,716 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-23 06:31:20,716 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 06:31:20,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 06:31:20,716 INFO L85 PathProgramCache]: Analyzing trace with hash -119041124, now seen corresponding path program 1 times [2024-09-23 06:31:20,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 06:31:20,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454340185] [2024-09-23 06:31:20,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 06:31:20,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 06:31:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 06:31:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 06:31:20,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 06:31:20,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454340185] [2024-09-23 06:31:20,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454340185] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 06:31:20,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 06:31:20,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-23 06:31:20,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317317229] [2024-09-23 06:31:20,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 06:31:20,792 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 06:31:20,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 06:31:20,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 06:31:20,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 06:31:20,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 06:31:20,793 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 06:31:20,793 INFO L475 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) [2024-09-23 06:31:20,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 06:31:20,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 06:31:20,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 06:31:20,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 06:31:20,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 06:31:20,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 06:31:20,863 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-23 06:31:20,863 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 06:31:20,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 06:31:20,864 INFO L85 PathProgramCache]: Analyzing trace with hash 237437263, now seen corresponding path program 1 times [2024-09-23 06:31:20,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 06:31:20,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670625953] [2024-09-23 06:31:20,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 06:31:20,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 06:31:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 06:31:20,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 06:31:20,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 06:31:20,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670625953] [2024-09-23 06:31:20,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670625953] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 06:31:20,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 06:31:20,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-23 06:31:20,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000301822] [2024-09-23 06:31:20,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 06:31:20,947 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-23 06:31:20,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 06:31:20,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-23 06:31:20,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-23 06:31:20,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 06:31:20,948 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 06:31:20,949 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2024-09-23 06:31:20,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 06:31:20,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 06:31:20,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 06:31:20,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 06:31:21,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 06:31:21,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 06:31:21,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 06:31:21,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 06:31:21,062 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-09-23 06:31:21,063 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-09-23 06:31:21,063 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-09-23 06:31:21,063 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-23 06:31:21,073 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-09-23 06:31:21,077 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-23 06:31:21,078 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-23 06:31:21,080 INFO L469 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-09-23 06:31:21,080 INFO L470 ceAbstractionStarter]: WitnessConsidered=1 [2024-09-23 06:31:21,081 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.09 06:31:21 BasicIcfg [2024-09-23 06:31:21,081 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-23 06:31:21,082 INFO L158 Benchmark]: Toolchain (without parser) took 2447.30ms. Allocated memory is still 157.3MB. Free memory was 107.5MB in the beginning and 51.5MB in the end (delta: 56.0MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2024-09-23 06:31:21,084 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 157.3MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 06:31:21,085 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 157.3MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 06:31:21,085 INFO L158 Benchmark]: CACSL2BoogieTranslator took 538.30ms. Allocated memory is still 157.3MB. Free memory was 107.5MB in the beginning and 83.0MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-09-23 06:31:21,085 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.82ms. Allocated memory is still 157.3MB. Free memory was 83.0MB in the beginning and 80.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-23 06:31:21,085 INFO L158 Benchmark]: Boogie Preprocessor took 38.63ms. Allocated memory is still 157.3MB. Free memory was 80.9MB in the beginning and 79.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 06:31:21,086 INFO L158 Benchmark]: RCFGBuilder took 519.70ms. Allocated memory is still 157.3MB. Free memory was 79.6MB in the beginning and 53.6MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-09-23 06:31:21,086 INFO L158 Benchmark]: TraceAbstraction took 1286.67ms. Allocated memory is still 157.3MB. Free memory was 53.0MB in the beginning and 51.5MB in the end (delta: 1.5MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2024-09-23 06:31:21,088 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 157.3MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 157.3MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 538.30ms. Allocated memory is still 157.3MB. Free memory was 107.5MB in the beginning and 83.0MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.82ms. Allocated memory is still 157.3MB. Free memory was 83.0MB in the beginning and 80.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.63ms. Allocated memory is still 157.3MB. Free memory was 80.9MB in the beginning and 79.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 519.70ms. Allocated memory is still 157.3MB. Free memory was 79.6MB in the beginning and 53.6MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1286.67ms. Allocated memory is still 157.3MB. Free memory was 53.0MB in the beginning and 51.5MB in the end (delta: 1.5MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 203, independent: 184, independent conditional: 59, independent unconditional: 125, dependent: 19, dependent conditional: 12, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 192, independent: 184, independent conditional: 59, independent unconditional: 125, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 192, independent: 184, independent conditional: 59, independent unconditional: 125, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 194, independent: 184, independent conditional: 59, independent unconditional: 125, dependent: 10, dependent conditional: 3, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 194, independent: 184, independent conditional: 0, independent unconditional: 184, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 194, independent: 184, independent conditional: 0, independent unconditional: 184, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 134, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 134, independent: 120, independent conditional: 0, independent unconditional: 120, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 14, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, independent: 51, independent conditional: 0, independent unconditional: 51, dependent: 27, dependent conditional: 4, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 194, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 134, unknown conditional: 1, unknown unconditional: 133] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 126, Positive conditional cache size: 0, Positive unconditional cache size: 126, Negative cache size: 8, Negative conditional cache size: 1, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 61, Maximal queried relation: 2, Independence queries for same thread: 11, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 44, Number of trivial persistent sets: 44, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 132, independent: 125, independent conditional: 0, independent unconditional: 125, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 203, independent: 184, independent conditional: 59, independent unconditional: 125, dependent: 19, dependent conditional: 12, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 192, independent: 184, independent conditional: 59, independent unconditional: 125, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 192, independent: 184, independent conditional: 59, independent unconditional: 125, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 194, independent: 184, independent conditional: 59, independent unconditional: 125, dependent: 10, dependent conditional: 3, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 194, independent: 184, independent conditional: 0, independent unconditional: 184, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 194, independent: 184, independent conditional: 0, independent unconditional: 184, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 134, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 134, independent: 120, independent conditional: 0, independent unconditional: 120, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 14, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, independent: 51, independent conditional: 0, independent unconditional: 51, dependent: 27, dependent conditional: 4, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 194, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 134, unknown conditional: 1, unknown unconditional: 133] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 126, Positive conditional cache size: 0, Positive unconditional cache size: 126, Negative cache size: 8, Negative conditional cache size: 1, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 61, Maximal queried relation: 2, Independence queries for same thread: 11 - PositiveResult [Line: 717]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 709]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, 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: 16, 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, 0.5s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 181 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-23 06:31:21,138 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 [2024-09-23 06:31:21,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE