./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-20_10-08-36.files/mutex-meet-ghost/read_write_lock-1-pthread.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da67795f 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-atomic/read_write_lock-1-pthread.i ./goblint.2024-08-20_10-08-36.files/mutex-meet-ghost/read_write_lock-1-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 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.goblint-eval-da67795-m [2024-08-27 03:46:58,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-27 03:46:58,077 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-27 03:46:58,081 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-27 03:46:58,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-27 03:46:58,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-27 03:46:58,096 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-27 03:46:58,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-27 03:46:58,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-27 03:46:58,097 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-27 03:46:58,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-27 03:46:58,098 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-27 03:46:58,098 INFO L153 SettingsManager]: * Use SBE=true [2024-08-27 03:46:58,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-27 03:46:58,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-27 03:46:58,099 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-27 03:46:58,099 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-27 03:46:58,100 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-27 03:46:58,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-27 03:46:58,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-27 03:46:58,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-27 03:46:58,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-27 03:46:58,101 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-27 03:46:58,101 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-27 03:46:58,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-27 03:46:58,102 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-27 03:46:58,102 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-27 03:46:58,102 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-27 03:46:58,103 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-27 03:46:58,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-27 03:46:58,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 03:46:58,103 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-27 03:46:58,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-27 03:46:58,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-27 03:46:58,104 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-27 03:46:58,104 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-27 03:46:58,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-27 03:46:58,105 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-27 03:46:58,105 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-27 03:46:58,105 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-27 03:46:58,105 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-27 03:46:58,106 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-27 03:46:58,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-27 03:46:58,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-27 03:46:58,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-27 03:46:58,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-27 03:46:58,334 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-27 03:46:58,334 INFO L274 PluginConnector]: CDTParser initialized [2024-08-27 03:46:58,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i [2024-08-27 03:46:59,486 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-27 03:46:59,664 INFO L384 CDTParser]: Found 1 translation units. [2024-08-27 03:46:59,665 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i [2024-08-27 03:46:59,674 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a573986e1/03cb5bcca94048a5b34d99f8f8e91587/FLAG545133c6a [2024-08-27 03:46:59,684 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a573986e1/03cb5bcca94048a5b34d99f8f8e91587 [2024-08-27 03:46:59,686 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-27 03:46:59,686 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-27 03:46:59,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-20_10-08-36.files/mutex-meet-ghost/read_write_lock-1-pthread.yml/witness.yml [2024-08-27 03:46:59,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-27 03:46:59,749 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-27 03:46:59,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-27 03:46:59,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-27 03:46:59,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-27 03:46:59,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:46:59" (1/2) ... [2024-08-27 03:46:59,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b372fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:59, skipping insertion in model container [2024-08-27 03:46:59,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:46:59" (1/2) ... [2024-08-27 03:46:59,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2c164b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:59, skipping insertion in model container [2024-08-27 03:46:59,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 03:46:59" (2/2) ... [2024-08-27 03:46:59,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b372fc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 03:46:59, skipping insertion in model container [2024-08-27 03:46:59,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 03:46:59" (2/2) ... [2024-08-27 03:46:59,762 INFO L85 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-27 03:46:59,804 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-08-27 03:46:59,805 INFO L1541 ArrayList]: Location invariant before [L719-L719] (((! multithreaded || (x == 0 || x == 3)) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (rwlock_locked || (x == 0 || x == 3))) [2024-08-27 03:46:59,805 INFO L1541 ArrayList]: 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))) [2024-08-27 03:46:59,806 INFO L1541 ArrayList]: Location invariant before [L720-L720] (((! multithreaded || (x == 0 || x == 3)) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (rwlock_locked || (x == 0 || x == 3))) [2024-08-27 03:46:59,806 INFO L1541 ArrayList]: Location invariant before [L718-L718] (((! multithreaded || (x == 0 || x == 3)) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (rwlock_locked || (x == 0 || x == 3))) [2024-08-27 03:46:59,806 INFO L1541 ArrayList]: ghost_variable rwlock_locked = 0 [2024-08-27 03:46:59,806 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-08-27 03:46:59,806 INFO L1541 ArrayList]: ghost_update [L697-L697] rwlock_locked = 1; [2024-08-27 03:46:59,806 INFO L1541 ArrayList]: ghost_update [L692-L692] rwlock_locked = 0; [2024-08-27 03:46:59,806 INFO L1541 ArrayList]: ghost_update [L690-L690] rwlock_locked = 1; [2024-08-27 03:46:59,807 INFO L1541 ArrayList]: ghost_update [L716-L716] multithreaded = 1; [2024-08-27 03:46:59,807 INFO L1541 ArrayList]: ghost_update [L711-L711] rwlock_locked = 0; [2024-08-27 03:46:59,848 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-27 03:47:00,107 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i[30919,30932] [2024-08-27 03:47:00,114 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 03:47:00,128 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-27 03:47:00,183 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i[30919,30932] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-27 03:47:00,198 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 03:47:00,236 INFO L206 MainTranslator]: Completed translation [2024-08-27 03:47:00,237 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 03:47:00 WrapperNode [2024-08-27 03:47:00,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-27 03:47:00,238 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-27 03:47:00,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-27 03:47:00,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-27 03:47:00,244 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 27.08 03:47:00" (1/1) ... [2024-08-27 03:47:00,257 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 27.08 03:47:00" (1/1) ... [2024-08-27 03:47:00,279 INFO L138 Inliner]: procedures = 165, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2024-08-27 03:47:00,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-27 03:47:00,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-27 03:47:00,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-27 03:47:00,282 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-27 03:47:00,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 03:47:00" (1/1) ... [2024-08-27 03:47:00,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 03:47:00" (1/1) ... [2024-08-27 03:47:00,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 03:47:00" (1/1) ... [2024-08-27 03:47:00,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 03:47:00" (1/1) ... [2024-08-27 03:47:00,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 03:47:00" (1/1) ... [2024-08-27 03:47:00,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 03:47:00" (1/1) ... [2024-08-27 03:47:00,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 03:47:00" (1/1) ... [2024-08-27 03:47:00,305 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 03:47:00" (1/1) ... [2024-08-27 03:47:00,306 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-27 03:47:00,307 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-27 03:47:00,307 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-27 03:47:00,307 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-27 03:47:00,308 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 03:47:00" (1/1) ... [2024-08-27 03:47:00,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 03:47:00,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 03:47:00,329 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) [2024-08-27 03:47:00,331 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 [2024-08-27 03:47:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2024-08-27 03:47:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2024-08-27 03:47:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-27 03:47:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-27 03:47:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-08-27 03:47:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-08-27 03:47:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2024-08-27 03:47:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-27 03:47:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-27 03:47:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-27 03:47:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-27 03:47:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-08-27 03:47:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-08-27 03:47:00,364 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-27 03:47:00,452 INFO L242 CfgBuilder]: Building ICFG [2024-08-27 03:47:00,454 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-27 03:47:00,603 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-27 03:47:00,604 INFO L291 CfgBuilder]: Performing block encoding [2024-08-27 03:47:00,709 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-27 03:47:00,709 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-27 03:47:00,710 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:47:00 BoogieIcfgContainer [2024-08-27 03:47:00,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-27 03:47:00,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-27 03:47:00,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-27 03:47:00,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-27 03:47:00,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 03:46:59" (1/4) ... [2024-08-27 03:47:00,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c69a6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:47:00, skipping insertion in model container [2024-08-27 03:47:00,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 03:46:59" (2/4) ... [2024-08-27 03:47:00,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c69a6b4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.08 03:47:00, skipping insertion in model container [2024-08-27 03:47:00,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 03:47:00" (3/4) ... [2024-08-27 03:47:00,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c69a6b4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.08 03:47:00, skipping insertion in model container [2024-08-27 03:47:00,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:47:00" (4/4) ... [2024-08-27 03:47:00,717 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1-pthread.i [2024-08-27 03:47:00,733 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-27 03:47:00,734 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-08-27 03:47:00,734 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-27 03:47:00,792 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-08-27 03:47:00,827 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 03:47:00,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 03:47:00,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 03:47:00,829 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) [2024-08-27 03:47:00,831 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 [2024-08-27 03:47:00,867 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 03:47:00,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of1ForFork0 ======== [2024-08-27 03:47:00,887 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;@7b889728, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 03:47:00,887 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-27 03:47:01,136 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-27 03:47:01,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:01,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1198727903, now seen corresponding path program 1 times [2024-08-27 03:47:01,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:01,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001172461] [2024-08-27 03:47:01,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:01,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:01,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:01,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:01,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001172461] [2024-08-27 03:47:01,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001172461] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:01,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:01,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 03:47:01,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916175457] [2024-08-27 03:47:01,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:01,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 03:47:01,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:01,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 03:47:01,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 03:47:01,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:01,498 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:01,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-08-27 03:47:01,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:01,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:01,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-27 03:47:01,765 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-27 03:47:01,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:01,765 INFO L85 PathProgramCache]: Analyzing trace with hash 2049114147, now seen corresponding path program 1 times [2024-08-27 03:47:01,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:01,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594870504] [2024-08-27 03:47:01,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:01,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:01,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:01,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:01,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594870504] [2024-08-27 03:47:01,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594870504] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:01,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:01,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-27 03:47:01,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863738698] [2024-08-27 03:47:01,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:01,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 03:47:01,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:01,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 03:47:01,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-08-27 03:47:01,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:01,888 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:01,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2024-08-27 03:47:01,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:01,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:02,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:02,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 03:47:02,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-27 03:47:02,136 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-27 03:47:02,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:02,137 INFO L85 PathProgramCache]: Analyzing trace with hash -2050333698, now seen corresponding path program 1 times [2024-08-27 03:47:02,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:02,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41003828] [2024-08-27 03:47:02,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:02,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:02,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:02,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:02,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41003828] [2024-08-27 03:47:02,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41003828] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:02,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:02,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 03:47:02,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755807179] [2024-08-27 03:47:02,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:02,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 03:47:02,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:02,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 03:47:02,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 03:47:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:02,193 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:02,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2024-08-27 03:47:02,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:02,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 03:47:02,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 03:47:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:02,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-08-27 03:47:02,344 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-27 03:47:02,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:02,344 INFO L85 PathProgramCache]: Analyzing trace with hash 25863106, now seen corresponding path program 1 times [2024-08-27 03:47:02,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:02,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679134198] [2024-08-27 03:47:02,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:02,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:02,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:02,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679134198] [2024-08-27 03:47:02,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679134198] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:02,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:02,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-27 03:47:02,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149071495] [2024-08-27 03:47:02,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:02,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 03:47:02,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:02,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 03:47:02,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-08-27 03:47:02,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:02,407 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:02,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-08-27 03:47:02,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:02,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 03:47:02,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:02,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:02,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:02,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 03:47:02,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:02,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 03:47:02,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-27 03:47:02,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-27 03:47:02,795 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-08-27 03:47:02,796 INFO L308 ceAbstractionStarter]: Result for error location readerThread1of1ForFork0 was SAFE (1/3) [2024-08-27 03:47:02,799 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 03:47:02,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 03:47:02,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 03:47:02,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-27 03:47:02,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-08-27 03:47:02,823 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 03:47:02,824 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of1ForFork1 ======== [2024-08-27 03:47:02,824 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;@7b889728, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 03:47:02,824 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-27 03:47:02,947 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-27 03:47:02,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:02,947 INFO L85 PathProgramCache]: Analyzing trace with hash -71767807, now seen corresponding path program 1 times [2024-08-27 03:47:02,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:02,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352980270] [2024-08-27 03:47:02,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:02,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:03,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:03,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:03,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352980270] [2024-08-27 03:47:03,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352980270] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:03,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:03,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 03:47:03,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584541748] [2024-08-27 03:47:03,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:03,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 03:47:03,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:03,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 03:47:03,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 03:47:03,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:03,013 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:03,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-08-27 03:47:03,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:03,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:03,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-08-27 03:47:03,207 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-27 03:47:03,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:03,207 INFO L85 PathProgramCache]: Analyzing trace with hash -14470843, now seen corresponding path program 1 times [2024-08-27 03:47:03,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:03,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708024280] [2024-08-27 03:47:03,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:03,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:03,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:03,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:03,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708024280] [2024-08-27 03:47:03,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708024280] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:03,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:03,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-27 03:47:03,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398586460] [2024-08-27 03:47:03,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:03,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-27 03:47:03,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:03,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-27 03:47:03,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-08-27 03:47:03,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:03,348 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:03,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 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) [2024-08-27 03:47:03,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:03,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:03,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:03,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 03:47:03,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-08-27 03:47:03,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-27 03:47:03,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:03,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1893105993, now seen corresponding path program 1 times [2024-08-27 03:47:03,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:03,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466583329] [2024-08-27 03:47:03,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:03,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:03,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:03,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466583329] [2024-08-27 03:47:03,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466583329] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:03,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:03,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 03:47:03,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044219561] [2024-08-27 03:47:03,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:03,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 03:47:03,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:03,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 03:47:03,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 03:47:03,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:03,635 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:03,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-08-27 03:47:03,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:03,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 03:47:03,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:03,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:03,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 03:47:03,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:03,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-08-27 03:47:03,697 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-27 03:47:03,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:03,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1021758520, now seen corresponding path program 1 times [2024-08-27 03:47:03,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:03,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516675393] [2024-08-27 03:47:03,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:03,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:03,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:03,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:03,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516675393] [2024-08-27 03:47:03,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516675393] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:03,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:03,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-27 03:47:03,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880514731] [2024-08-27 03:47:03,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:03,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 03:47:03,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:03,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 03:47:03,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-08-27 03:47:03,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:03,754 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:03,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2024-08-27 03:47:03,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:03,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 03:47:03,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:03,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:03,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:03,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 03:47:03,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:03,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 03:47:03,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-08-27 03:47:03,964 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-27 03:47:03,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:03,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1636385400, now seen corresponding path program 2 times [2024-08-27 03:47:03,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:03,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235269693] [2024-08-27 03:47:03,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:03,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:04,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:04,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:04,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235269693] [2024-08-27 03:47:04,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235269693] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:04,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:04,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-27 03:47:04,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011964192] [2024-08-27 03:47:04,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:04,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 03:47:04,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:04,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 03:47:04,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-08-27 03:47:04,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:04,040 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:04,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2024-08-27 03:47:04,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:04,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 03:47:04,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:04,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 03:47:04,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:04,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:04,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 03:47:04,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:04,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 03:47:04,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 03:47:04,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-27 03:47:04,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-08-27 03:47:04,318 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-08-27 03:47:04,318 INFO L308 ceAbstractionStarter]: Result for error location readerThread1of1ForFork1 was SAFE (2/3) [2024-08-27 03:47:04,322 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 03:47:04,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 03:47:04,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 03:47:04,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-27 03:47:04,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-08-27 03:47:04,327 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 03:47:04,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-27 03:47:04,329 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;@7b889728, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 03:47:04,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-08-27 03:47:04,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-27 03:47:04,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:04,386 INFO L85 PathProgramCache]: Analyzing trace with hash 361112444, now seen corresponding path program 1 times [2024-08-27 03:47:04,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:04,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789196503] [2024-08-27 03:47:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:04,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:04,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:04,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:04,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789196503] [2024-08-27 03:47:04,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789196503] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:04,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:04,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-27 03:47:04,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318063153] [2024-08-27 03:47:04,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:04,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-27 03:47:04,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:04,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-27 03:47:04,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-27 03:47:04,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:04,413 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:04,413 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) [2024-08-27 03:47:04,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:04,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:04,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-08-27 03:47:04,448 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-27 03:47:04,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:04,448 INFO L85 PathProgramCache]: Analyzing trace with hash -926273518, now seen corresponding path program 1 times [2024-08-27 03:47:04,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:04,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167056046] [2024-08-27 03:47:04,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:04,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:04,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:04,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:04,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167056046] [2024-08-27 03:47:04,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167056046] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:04,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:04,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 03:47:04,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361530379] [2024-08-27 03:47:04,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:04,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 03:47:04,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:04,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 03:47:04,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 03:47:04,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:04,482 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:04,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-08-27 03:47:04,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:04,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:04,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:04,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:04,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-08-27 03:47:04,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-27 03:47:04,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:04,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1697447421, now seen corresponding path program 1 times [2024-08-27 03:47:04,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:04,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744731350] [2024-08-27 03:47:04,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:04,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:04,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:04,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:04,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744731350] [2024-08-27 03:47:04,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744731350] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:04,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:04,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-08-27 03:47:04,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56714469] [2024-08-27 03:47:04,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:04,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 03:47:04,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:04,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 03:47:04,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 03:47:04,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:04,649 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:04,649 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) [2024-08-27 03:47:04,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:04,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:04,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:04,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:04,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:04,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:04,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-08-27 03:47:04,746 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-27 03:47:04,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:04,747 INFO L85 PathProgramCache]: Analyzing trace with hash 2103679636, now seen corresponding path program 1 times [2024-08-27 03:47:04,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:04,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718084388] [2024-08-27 03:47:04,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:04,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:04,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:04,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:04,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718084388] [2024-08-27 03:47:04,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718084388] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:04,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:04,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 03:47:04,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262423573] [2024-08-27 03:47:04,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:04,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-27 03:47:04,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:04,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-27 03:47:04,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-08-27 03:47:04,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:04,791 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:04,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2024-08-27 03:47:04,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:04,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:04,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:04,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:04,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:04,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:04,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:04,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:04,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-08-27 03:47:04,911 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-27 03:47:04,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:04,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1031304332, now seen corresponding path program 1 times [2024-08-27 03:47:04,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:04,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867309193] [2024-08-27 03:47:04,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:04,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:04,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:04,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:04,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867309193] [2024-08-27 03:47:04,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867309193] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:04,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:04,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 03:47:04,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897765621] [2024-08-27 03:47:04,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:04,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-27 03:47:04,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:04,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-27 03:47:04,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-27 03:47:04,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:04,969 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:04,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-08-27 03:47:04,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:04,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:04,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:04,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:04,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:05,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:05,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:05,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 03:47:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:05,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-08-27 03:47:05,080 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-27 03:47:05,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:05,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1021571571, now seen corresponding path program 1 times [2024-08-27 03:47:05,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:05,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393843387] [2024-08-27 03:47:05,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:05,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:05,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:05,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:05,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393843387] [2024-08-27 03:47:05,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393843387] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:05,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:05,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-08-27 03:47:05,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147214837] [2024-08-27 03:47:05,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:05,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-27 03:47:05,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:05,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-27 03:47:05,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-08-27 03:47:05,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:05,229 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:05,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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) [2024-08-27 03:47:05,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:05,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:05,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:05,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 03:47:05,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:05,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:05,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:05,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:05,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:05,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 03:47:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-27 03:47:05,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-08-27 03:47:05,484 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-27 03:47:05,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:05,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1482705147, now seen corresponding path program 1 times [2024-08-27 03:47:05,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:05,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127907046] [2024-08-27 03:47:05,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:05,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:05,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:05,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:05,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127907046] [2024-08-27 03:47:05,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127907046] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:05,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:05,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-27 03:47:05,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948577352] [2024-08-27 03:47:05,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:05,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-27 03:47:05,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:05,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-27 03:47:05,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-27 03:47:05,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:05,555 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:05,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2024-08-27 03:47:05,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:05,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:05,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:05,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 03:47:05,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:05,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-27 03:47:05,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:05,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:05,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:05,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:05,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 03:47:05,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:05,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-27 03:47:05,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:05,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-08-27 03:47:05,675 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-27 03:47:05,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 03:47:05,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1637579728, now seen corresponding path program 1 times [2024-08-27 03:47:05,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 03:47:05,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341725715] [2024-08-27 03:47:05,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 03:47:05,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 03:47:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 03:47:05,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 03:47:05,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 03:47:05,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341725715] [2024-08-27 03:47:05,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341725715] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 03:47:05,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 03:47:05,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 03:47:05,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644400060] [2024-08-27 03:47:05,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 03:47:05,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-27 03:47:05,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 03:47:05,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-27 03:47:05,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-08-27 03:47:05,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:05,747 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 03:47:05,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-08-27 03:47:05,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:05,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:05,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:05,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 03:47:05,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:05,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-27 03:47:05,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:05,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 03:47:06,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:06,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:06,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 03:47:06,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 03:47:06,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:06,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-27 03:47:06,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 03:47:06,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 03:47:06,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-08-27 03:47:06,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-08-27 03:47:06,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-08-27 03:47:06,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-08-27 03:47:06,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-08-27 03:47:06,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-08-27 03:47:06,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-08-27 03:47:06,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-08-27 03:47:06,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-08-27 03:47:06,136 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-08-27 03:47:06,137 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (3/3) [2024-08-27 03:47:06,137 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-08-27 03:47:06,137 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-08-27 03:47:06,140 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-08-27 03:47:06,140 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-08-27 03:47:06,142 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 03:47:06 BasicIcfg [2024-08-27 03:47:06,142 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-27 03:47:06,142 INFO L158 Benchmark]: Toolchain (without parser) took 6393.37ms. Allocated memory was 140.5MB in the beginning and 333.4MB in the end (delta: 192.9MB). Free memory was 67.8MB in the beginning and 251.4MB in the end (delta: -183.6MB). Peak memory consumption was 159.2MB. Max. memory is 16.1GB. [2024-08-27 03:47:06,142 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-27 03:47:06,143 INFO L158 Benchmark]: Witness Parser took 0.41ms. Allocated memory is still 140.5MB. Free memory is still 70.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-27 03:47:06,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.17ms. Allocated memory was 140.5MB in the beginning and 218.1MB in the end (delta: 77.6MB). Free memory was 67.5MB in the beginning and 166.5MB in the end (delta: -99.1MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-08-27 03:47:06,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.76ms. Allocated memory is still 218.1MB. Free memory was 166.5MB in the beginning and 164.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-27 03:47:06,143 INFO L158 Benchmark]: Boogie Preprocessor took 24.62ms. Allocated memory is still 218.1MB. Free memory was 164.4MB in the beginning and 162.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-27 03:47:06,143 INFO L158 Benchmark]: RCFGBuilder took 402.99ms. Allocated memory is still 218.1MB. Free memory was 162.4MB in the beginning and 129.8MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-08-27 03:47:06,144 INFO L158 Benchmark]: TraceAbstraction took 5430.28ms. Allocated memory was 218.1MB in the beginning and 333.4MB in the end (delta: 115.3MB). Free memory was 128.8MB in the beginning and 251.4MB in the end (delta: -122.6MB). Peak memory consumption was 140.6MB. Max. memory is 16.1GB. [2024-08-27 03:47:06,145 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.41ms. Allocated memory is still 140.5MB. Free memory is still 70.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 483.17ms. Allocated memory was 140.5MB in the beginning and 218.1MB in the end (delta: 77.6MB). Free memory was 67.5MB in the beginning and 166.5MB in the end (delta: -99.1MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.76ms. Allocated memory is still 218.1MB. Free memory was 166.5MB in the beginning and 164.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.62ms. Allocated memory is still 218.1MB. Free memory was 164.4MB in the beginning and 162.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.99ms. Allocated memory is still 218.1MB. Free memory was 162.4MB in the beginning and 129.8MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5430.28ms. Allocated memory was 218.1MB in the beginning and 333.4MB in the end (delta: 115.3MB). Free memory was 128.8MB in the beginning and 251.4MB in the end (delta: -122.6MB). Peak memory consumption was 140.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6366, independent: 6099, independent conditional: 4021, independent unconditional: 2078, dependent: 267, dependent conditional: 204, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6185, independent: 6099, independent conditional: 4021, independent unconditional: 2078, dependent: 86, dependent conditional: 23, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6185, independent: 6099, independent conditional: 4021, independent unconditional: 2078, dependent: 86, dependent conditional: 23, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6524, independent: 6099, independent conditional: 165, independent unconditional: 5934, dependent: 425, dependent conditional: 174, dependent unconditional: 251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6524, independent: 6099, independent conditional: 165, independent unconditional: 5934, dependent: 425, dependent conditional: 85, dependent unconditional: 340, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6524, independent: 6099, independent conditional: 165, independent unconditional: 5934, dependent: 425, dependent conditional: 85, dependent unconditional: 340, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2185, independent: 2105, independent conditional: 21, independent unconditional: 2084, dependent: 80, dependent conditional: 13, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2185, independent: 1953, independent conditional: 0, independent unconditional: 1953, dependent: 232, dependent conditional: 0, dependent unconditional: 232, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 232, independent: 152, independent conditional: 21, independent unconditional: 131, dependent: 80, dependent conditional: 13, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 232, independent: 152, independent conditional: 21, independent unconditional: 131, dependent: 80, dependent conditional: 13, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 494, independent: 372, independent conditional: 38, independent unconditional: 335, dependent: 122, dependent conditional: 21, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 6524, independent: 3994, independent conditional: 144, independent unconditional: 3850, dependent: 345, dependent conditional: 72, dependent unconditional: 273, unknown: 2185, unknown conditional: 34, unknown unconditional: 2151] , Statistics on independence cache: Total cache size (in pairs): 2185, Positive cache size: 2105, Positive conditional cache size: 21, Positive unconditional cache size: 2084, Negative cache size: 80, Negative conditional cache size: 13, Negative unconditional cache size: 67, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 89, Maximal queried relation: 3, Independence queries for same thread: 181 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.5s, Number of persistent set computation: 665, Number of trivial persistent sets: 409, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2141, independent: 2078, independent conditional: 0, independent unconditional: 2078, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6366, independent: 6099, independent conditional: 4021, independent unconditional: 2078, dependent: 267, dependent conditional: 204, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6185, independent: 6099, independent conditional: 4021, independent unconditional: 2078, dependent: 86, dependent conditional: 23, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6185, independent: 6099, independent conditional: 4021, independent unconditional: 2078, dependent: 86, dependent conditional: 23, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6524, independent: 6099, independent conditional: 165, independent unconditional: 5934, dependent: 425, dependent conditional: 174, dependent unconditional: 251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6524, independent: 6099, independent conditional: 165, independent unconditional: 5934, dependent: 425, dependent conditional: 85, dependent unconditional: 340, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6524, independent: 6099, independent conditional: 165, independent unconditional: 5934, dependent: 425, dependent conditional: 85, dependent unconditional: 340, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2185, independent: 2105, independent conditional: 21, independent unconditional: 2084, dependent: 80, dependent conditional: 13, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2185, independent: 1953, independent conditional: 0, independent unconditional: 1953, dependent: 232, dependent conditional: 0, dependent unconditional: 232, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 232, independent: 152, independent conditional: 21, independent unconditional: 131, dependent: 80, dependent conditional: 13, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 232, independent: 152, independent conditional: 21, independent unconditional: 131, dependent: 80, dependent conditional: 13, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 494, independent: 372, independent conditional: 38, independent unconditional: 335, dependent: 122, dependent conditional: 21, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 6524, independent: 3994, independent conditional: 144, independent unconditional: 3850, dependent: 345, dependent conditional: 72, dependent unconditional: 273, unknown: 2185, unknown conditional: 34, unknown unconditional: 2151] , Statistics on independence cache: Total cache size (in pairs): 2185, Positive cache size: 2105, Positive conditional cache size: 21, Positive unconditional cache size: 2084, Negative cache size: 80, Negative conditional cache size: 13, Negative unconditional cache size: 67, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 89, Maximal queried relation: 3, Independence queries for same thread: 181 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9463, independent: 9074, independent conditional: 6832, independent unconditional: 2242, dependent: 389, dependent conditional: 327, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9160, independent: 9074, independent conditional: 6832, independent unconditional: 2242, dependent: 86, dependent conditional: 24, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9160, independent: 9074, independent conditional: 6832, independent unconditional: 2242, dependent: 86, dependent conditional: 24, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9376, independent: 9074, independent conditional: 96, independent unconditional: 8978, dependent: 302, dependent conditional: 120, dependent unconditional: 182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9376, independent: 9074, independent conditional: 96, independent unconditional: 8978, dependent: 302, dependent conditional: 94, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9376, independent: 9074, independent conditional: 96, independent unconditional: 8978, dependent: 302, dependent conditional: 94, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2339, independent: 2259, independent conditional: 11, independent unconditional: 2248, dependent: 80, dependent conditional: 14, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2339, independent: 2113, independent conditional: 0, independent unconditional: 2113, dependent: 226, dependent conditional: 0, dependent unconditional: 226, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 226, independent: 146, independent conditional: 11, independent unconditional: 135, dependent: 80, dependent conditional: 14, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 226, independent: 146, independent conditional: 11, independent unconditional: 135, dependent: 80, dependent conditional: 14, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 280, independent: 202, independent conditional: 12, independent unconditional: 190, dependent: 79, dependent conditional: 12, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 9376, independent: 6815, independent conditional: 85, independent unconditional: 6730, dependent: 222, dependent conditional: 80, dependent unconditional: 142, unknown: 2339, unknown conditional: 25, unknown unconditional: 2314] , Statistics on independence cache: Total cache size (in pairs): 2339, Positive cache size: 2259, Positive conditional cache size: 11, Positive unconditional cache size: 2248, Negative cache size: 80, Negative conditional cache size: 14, Negative unconditional cache size: 66, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 26, Maximal queried relation: 4, Independence queries for same thread: 303 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.3s, Number of persistent set computation: 973, Number of trivial persistent sets: 623, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2304, independent: 2242, independent conditional: 0, independent unconditional: 2242, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9463, independent: 9074, independent conditional: 6832, independent unconditional: 2242, dependent: 389, dependent conditional: 327, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9160, independent: 9074, independent conditional: 6832, independent unconditional: 2242, dependent: 86, dependent conditional: 24, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9160, independent: 9074, independent conditional: 6832, independent unconditional: 2242, dependent: 86, dependent conditional: 24, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9376, independent: 9074, independent conditional: 96, independent unconditional: 8978, dependent: 302, dependent conditional: 120, dependent unconditional: 182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9376, independent: 9074, independent conditional: 96, independent unconditional: 8978, dependent: 302, dependent conditional: 94, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9376, independent: 9074, independent conditional: 96, independent unconditional: 8978, dependent: 302, dependent conditional: 94, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2339, independent: 2259, independent conditional: 11, independent unconditional: 2248, dependent: 80, dependent conditional: 14, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2339, independent: 2113, independent conditional: 0, independent unconditional: 2113, dependent: 226, dependent conditional: 0, dependent unconditional: 226, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 226, independent: 146, independent conditional: 11, independent unconditional: 135, dependent: 80, dependent conditional: 14, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 226, independent: 146, independent conditional: 11, independent unconditional: 135, dependent: 80, dependent conditional: 14, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 280, independent: 202, independent conditional: 12, independent unconditional: 190, dependent: 79, dependent conditional: 12, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 9376, independent: 6815, independent conditional: 85, independent unconditional: 6730, dependent: 222, dependent conditional: 80, dependent unconditional: 142, unknown: 2339, unknown conditional: 25, unknown unconditional: 2314] , Statistics on independence cache: Total cache size (in pairs): 2339, Positive cache size: 2259, Positive conditional cache size: 11, Positive unconditional cache size: 2248, Negative cache size: 80, Negative conditional cache size: 14, Negative unconditional cache size: 66, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 26, Maximal queried relation: 4, Independence queries for same thread: 303 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11040, independent: 10665, independent conditional: 8509, independent unconditional: 2156, dependent: 375, dependent conditional: 313, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10742, independent: 10665, independent conditional: 8509, independent unconditional: 2156, dependent: 77, dependent conditional: 15, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10742, independent: 10665, independent conditional: 8509, independent unconditional: 2156, dependent: 77, dependent conditional: 15, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10842, independent: 10665, independent conditional: 6, independent unconditional: 10659, dependent: 177, dependent conditional: 94, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10842, independent: 10665, independent conditional: 6, independent unconditional: 10659, dependent: 177, dependent conditional: 59, dependent unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10842, independent: 10665, independent conditional: 6, independent unconditional: 10659, dependent: 177, dependent conditional: 59, dependent unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2243, independent: 2162, independent conditional: 2, independent unconditional: 2160, dependent: 81, dependent conditional: 17, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2243, independent: 2015, independent conditional: 0, independent unconditional: 2015, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 228, independent: 147, independent conditional: 2, independent unconditional: 145, dependent: 81, dependent conditional: 17, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 228, independent: 147, independent conditional: 2, independent unconditional: 145, dependent: 81, dependent conditional: 17, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 253, independent: 181, independent conditional: 2, independent unconditional: 179, dependent: 72, dependent conditional: 15, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 10842, independent: 8503, independent conditional: 4, independent unconditional: 8499, dependent: 96, dependent conditional: 42, dependent unconditional: 54, unknown: 2243, unknown conditional: 19, unknown unconditional: 2224] , Statistics on independence cache: Total cache size (in pairs): 2243, Positive cache size: 2162, Positive conditional cache size: 2, Positive unconditional cache size: 2160, Negative cache size: 81, Negative conditional cache size: 17, Negative unconditional cache size: 64, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 35, Maximal queried relation: 7, Independence queries for same thread: 298 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.3s, Number of persistent set computation: 1432, Number of trivial persistent sets: 1432, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2218, independent: 2156, independent conditional: 0, independent unconditional: 2156, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11040, independent: 10665, independent conditional: 8509, independent unconditional: 2156, dependent: 375, dependent conditional: 313, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10742, independent: 10665, independent conditional: 8509, independent unconditional: 2156, dependent: 77, dependent conditional: 15, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10742, independent: 10665, independent conditional: 8509, independent unconditional: 2156, dependent: 77, dependent conditional: 15, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10842, independent: 10665, independent conditional: 6, independent unconditional: 10659, dependent: 177, dependent conditional: 94, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10842, independent: 10665, independent conditional: 6, independent unconditional: 10659, dependent: 177, dependent conditional: 59, dependent unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10842, independent: 10665, independent conditional: 6, independent unconditional: 10659, dependent: 177, dependent conditional: 59, dependent unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2243, independent: 2162, independent conditional: 2, independent unconditional: 2160, dependent: 81, dependent conditional: 17, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2243, independent: 2015, independent conditional: 0, independent unconditional: 2015, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 228, independent: 147, independent conditional: 2, independent unconditional: 145, dependent: 81, dependent conditional: 17, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 228, independent: 147, independent conditional: 2, independent unconditional: 145, dependent: 81, dependent conditional: 17, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 253, independent: 181, independent conditional: 2, independent unconditional: 179, dependent: 72, dependent conditional: 15, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 10842, independent: 8503, independent conditional: 4, independent unconditional: 8499, dependent: 96, dependent conditional: 42, dependent unconditional: 54, unknown: 2243, unknown conditional: 19, unknown unconditional: 2224] , Statistics on independence cache: Total cache size (in pairs): 2243, Positive cache size: 2162, Positive conditional cache size: 2, Positive unconditional cache size: 2160, Negative cache size: 81, Negative conditional cache size: 17, Negative unconditional cache size: 64, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 35, Maximal queried relation: 7, Independence queries for same thread: 298 - PositiveResult [Line: 710]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 717]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 718]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 719]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 720]: 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: readerThread1of1ForFork0 with 1 thread instances CFG has 7 procedures, 88 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.3s, 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: 21, 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, 0.4s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 247 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: readerThread1of1ForFork1 with 1 thread instances CFG has 7 procedures, 88 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.1s, 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: 31, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 177 ConstructedInterpolants, 0 QuantifiedInterpolants, 387 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 88 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.3s, 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: 45, 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, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 190 ConstructedInterpolants, 0 QuantifiedInterpolants, 818 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-08-27 03:47:06,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Ended with exit code 0 [2024-08-27 03:47:06,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Ended with exit code 0 [2024-08-27 03:47:06,570 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 [2024-08-27 03:47:06,770 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