./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.2024-09-02_08-21-23.files/mutex-meet-ghost/read_write_lock-1-pthread.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 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.2024-09-02_08-21-23.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.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 08:31:04,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 08:31:04,748 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 08:31:04,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 08:31:04,753 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 08:31:04,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 08:31:04,772 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 08:31:04,772 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 08:31:04,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 08:31:04,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 08:31:04,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 08:31:04,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 08:31:04,774 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 08:31:04,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 08:31:04,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 08:31:04,775 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 08:31:04,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 08:31:04,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 08:31:04,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 08:31:04,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 08:31:04,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 08:31:04,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 08:31:04,777 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 08:31:04,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 08:31:04,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 08:31:04,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 08:31:04,779 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 08:31:04,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 08:31:04,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 08:31:04,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 08:31:04,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 08:31:04,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 08:31:04,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 08:31:04,781 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 08:31:04,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 08:31:04,781 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 08:31:04,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 08:31:04,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 08:31:04,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 08:31:04,782 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 08:31:04,783 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 08:31:04,785 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 08:31:05,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 08:31:05,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 08:31:05,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 08:31:05,062 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 08:31:05,062 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 08:31:05,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i [2024-09-08 08:31:06,483 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 08:31:06,735 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 08:31:06,735 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i [2024-09-08 08:31:06,753 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1dd621c8f/cd0e8d50c11b47b28a5c891613e2b444/FLAGdfc3d86fa [2024-09-08 08:31:07,051 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1dd621c8f/cd0e8d50c11b47b28a5c891613e2b444 [2024-09-08 08:31:07,053 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 08:31:07,054 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 08:31:07,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/read_write_lock-1-pthread.yml/witness.yml [2024-09-08 08:31:07,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 08:31:07,168 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 08:31:07,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 08:31:07,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 08:31:07,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 08:31:07,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 08:31:07" (1/2) ... [2024-09-08 08:31:07,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205fc59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:31:07, skipping insertion in model container [2024-09-08 08:31:07,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 08:31:07" (1/2) ... [2024-09-08 08:31:07,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2090031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:31:07, skipping insertion in model container [2024-09-08 08:31:07,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 08:31:07" (2/2) ... [2024-09-08 08:31:07,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205fc59a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 08:31:07, skipping insertion in model container [2024-09-08 08:31:07,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 08:31:07" (2/2) ... [2024-09-08 08:31:07,223 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 08:31:07,225 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))) [2024-09-08 08:31:07,225 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))) [2024-09-08 08:31:07,225 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))) [2024-09-08 08:31:07,225 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))) [2024-09-08 08:31:07,225 INFO L1541 ArrayList]: ghost_variable rwlock_locked = 0 [2024-09-08 08:31:07,226 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-08 08:31:07,226 INFO L1541 ArrayList]: ghost_update [L690-L690] rwlock_locked = 1; [2024-09-08 08:31:07,226 INFO L1541 ArrayList]: ghost_update [L692-L692] rwlock_locked = 0; [2024-09-08 08:31:07,226 INFO L1541 ArrayList]: ghost_update [L711-L711] rwlock_locked = 0; [2024-09-08 08:31:07,226 INFO L1541 ArrayList]: ghost_update [L716-L716] multithreaded = 1; [2024-09-08 08:31:07,226 INFO L1541 ArrayList]: ghost_update [L697-L697] rwlock_locked = 1; [2024-09-08 08:31:07,265 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 08:31:07,634 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] [2024-09-08 08:31:07,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 08:31:07,664 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 08:31:07,737 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 [2024-09-08 08:31:07,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 08:31:07,792 INFO L204 MainTranslator]: Completed translation [2024-09-08 08:31:07,794 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 08:31:07 WrapperNode [2024-09-08 08:31:07,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 08:31:07,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 08:31:07,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 08:31:07,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 08:31:07,804 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 08.09 08:31:07" (1/1) ... [2024-09-08 08:31:07,821 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 08.09 08:31:07" (1/1) ... [2024-09-08 08:31:07,853 INFO L138 Inliner]: procedures = 165, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2024-09-08 08:31:07,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 08:31:07,854 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 08:31:07,854 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 08:31:07,854 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 08:31:07,865 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 08:31:07" (1/1) ... [2024-09-08 08:31:07,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 08:31:07" (1/1) ... [2024-09-08 08:31:07,869 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 08:31:07" (1/1) ... [2024-09-08 08:31:07,869 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 08:31:07" (1/1) ... [2024-09-08 08:31:07,875 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 08:31:07" (1/1) ... [2024-09-08 08:31:07,877 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 08:31:07" (1/1) ... [2024-09-08 08:31:07,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 08:31:07" (1/1) ... [2024-09-08 08:31:07,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 08:31:07" (1/1) ... [2024-09-08 08:31:07,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 08:31:07,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 08:31:07,883 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 08:31:07,883 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 08:31:07,884 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 08:31:07" (1/1) ... [2024-09-08 08:31:07,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 08:31:07,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 08:31:07,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-08 08:31:07,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-08 08:31:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2024-09-08 08:31:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2024-09-08 08:31:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 08:31:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 08:31:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-09-08 08:31:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-09-08 08:31:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2024-09-08 08:31:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 08:31:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 08:31:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 08:31:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 08:31:07,972 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-09-08 08:31:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-09-08 08:31:07,973 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 08:31:08,084 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 08:31:08,086 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 08:31:08,308 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 08:31:08,308 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 08:31:08,433 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 08:31:08,433 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-08 08:31:08,434 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 08:31:08 BoogieIcfgContainer [2024-09-08 08:31:08,434 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 08:31:08,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 08:31:08,436 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 08:31:08,440 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 08:31:08,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 08:31:07" (1/4) ... [2024-09-08 08:31:08,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df1e863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 08:31:08, skipping insertion in model container [2024-09-08 08:31:08,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 08:31:07" (2/4) ... [2024-09-08 08:31:08,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df1e863 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 08:31:08, skipping insertion in model container [2024-09-08 08:31:08,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 08:31:07" (3/4) ... [2024-09-08 08:31:08,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df1e863 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 08:31:08, skipping insertion in model container [2024-09-08 08:31:08,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 08:31:08" (4/4) ... [2024-09-08 08:31:08,442 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1-pthread.i [2024-09-08 08:31:08,459 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 08:31:08,459 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-09-08 08:31:08,459 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 08:31:08,520 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-09-08 08:31:08,563 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 08:31:08,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 08:31:08,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 08:31:08,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 08:31:08,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-08 08:31:08,604 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 08:31:08,617 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of1ForFork0 ======== [2024-09-08 08:31:08,626 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48d1a524, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 08:31:08,626 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-08 08:31:08,935 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 08:31:08,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:08,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1198727903, now seen corresponding path program 1 times [2024-09-08 08:31:08,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:08,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169131914] [2024-09-08 08:31:08,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:08,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:09,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:09,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169131914] [2024-09-08 08:31:09,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169131914] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:09,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:09,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 08:31:09,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687829289] [2024-09-08 08:31:09,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:09,467 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 08:31:09,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:09,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 08:31:09,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 08:31:09,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:09,495 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:09,496 INFO L475 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) [2024-09-08 08:31:09,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:09,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:09,942 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 08:31:09,942 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 08:31:09,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:09,945 INFO L85 PathProgramCache]: Analyzing trace with hash 2049114147, now seen corresponding path program 1 times [2024-09-08 08:31:09,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:09,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174234457] [2024-09-08 08:31:09,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:09,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:10,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:10,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174234457] [2024-09-08 08:31:10,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174234457] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:10,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:10,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-08 08:31:10,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781819352] [2024-09-08 08:31:10,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:10,058 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 08:31:10,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:10,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 08:31:10,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-08 08:31:10,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:10,060 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:10,060 INFO L475 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) [2024-09-08 08:31:10,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:10,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:10,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:10,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 08:31:10,371 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-08 08:31:10,371 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 08:31:10,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:10,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2050333698, now seen corresponding path program 1 times [2024-09-08 08:31:10,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:10,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230877216] [2024-09-08 08:31:10,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:10,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:10,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:10,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:10,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230877216] [2024-09-08 08:31:10,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230877216] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:10,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:10,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 08:31:10,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205522640] [2024-09-08 08:31:10,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:10,498 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 08:31:10,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:10,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 08:31:10,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 08:31:10,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:10,499 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:10,499 INFO L475 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) [2024-09-08 08:31:10,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:10,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 08:31:10,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:10,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:10,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:10,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:10,733 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-08 08:31:10,733 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 08:31:10,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:10,734 INFO L85 PathProgramCache]: Analyzing trace with hash 25863106, now seen corresponding path program 1 times [2024-09-08 08:31:10,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:10,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437471040] [2024-09-08 08:31:10,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:10,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:10,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:10,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:10,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437471040] [2024-09-08 08:31:10,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437471040] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:10,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:10,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-08 08:31:10,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040885321] [2024-09-08 08:31:10,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:10,808 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 08:31:10,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:10,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 08:31:10,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-08 08:31:10,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:10,809 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:10,809 INFO L475 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) [2024-09-08 08:31:10,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:10,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:10,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:10,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:11,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:11,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:11,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:11,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 08:31:11,334 INFO L785 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-08 08:31:11,335 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-08 08:31:11,345 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-09-08 08:31:11,347 INFO L312 ceAbstractionStarter]: Result for error location readerThread1of1ForFork0 was SAFE (1/3) [2024-09-08 08:31:11,350 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 08:31:11,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 08:31:11,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 08:31:11,354 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) [2024-09-08 08:31:11,356 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 [2024-09-08 08:31:11,359 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 08:31:11,360 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of1ForFork1 ======== [2024-09-08 08:31:11,361 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48d1a524, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 08:31:11,362 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-08 08:31:11,517 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 08:31:11,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:11,518 INFO L85 PathProgramCache]: Analyzing trace with hash -71767807, now seen corresponding path program 1 times [2024-09-08 08:31:11,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:11,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420541386] [2024-09-08 08:31:11,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:11,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:11,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:11,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:11,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420541386] [2024-09-08 08:31:11,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420541386] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:11,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:11,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 08:31:11,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445558307] [2024-09-08 08:31:11,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:11,602 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 08:31:11,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:11,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 08:31:11,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 08:31:11,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:11,604 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:11,604 INFO L475 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) [2024-09-08 08:31:11,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:11,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:11,869 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-08 08:31:11,869 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 08:31:11,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:11,869 INFO L85 PathProgramCache]: Analyzing trace with hash -14470843, now seen corresponding path program 1 times [2024-09-08 08:31:11,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:11,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54842528] [2024-09-08 08:31:11,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:11,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:11,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:11,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:11,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54842528] [2024-09-08 08:31:11,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54842528] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:11,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:11,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-08 08:31:11,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879715033] [2024-09-08 08:31:11,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:11,926 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 08:31:11,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:11,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 08:31:11,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-08 08:31:11,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:11,927 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:11,928 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) 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) [2024-09-08 08:31:11,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:11,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:12,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:12,184 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-08 08:31:12,184 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 08:31:12,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:12,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1893105993, now seen corresponding path program 1 times [2024-09-08 08:31:12,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:12,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789671072] [2024-09-08 08:31:12,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:12,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:12,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:12,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:12,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789671072] [2024-09-08 08:31:12,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789671072] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:12,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:12,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-08 08:31:12,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838953644] [2024-09-08 08:31:12,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:12,297 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 08:31:12,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:12,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 08:31:12,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-08 08:31:12,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:12,298 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:12,299 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 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) [2024-09-08 08:31:12,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:12,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:12,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:12,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:12,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 08:31:12,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 08:31:12,669 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-08 08:31:12,669 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 08:31:12,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:12,670 INFO L85 PathProgramCache]: Analyzing trace with hash -997421974, now seen corresponding path program 1 times [2024-09-08 08:31:12,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:12,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476975991] [2024-09-08 08:31:12,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:12,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:12,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:12,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:12,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476975991] [2024-09-08 08:31:12,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476975991] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:12,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:12,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 08:31:12,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424759843] [2024-09-08 08:31:12,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:12,800 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 08:31:12,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:12,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 08:31:12,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-08 08:31:12,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:12,801 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:12,801 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 08:31:12,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:12,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 08:31:12,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 08:31:12,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:12,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:12,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 08:31:12,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 08:31:12,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:12,962 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-08 08:31:12,964 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 08:31:12,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:12,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1636385400, now seen corresponding path program 1 times [2024-09-08 08:31:12,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:12,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55167949] [2024-09-08 08:31:12,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:12,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:13,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:13,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:13,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55167949] [2024-09-08 08:31:13,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55167949] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:13,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:13,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-08 08:31:13,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919508440] [2024-09-08 08:31:13,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:13,061 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 08:31:13,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:13,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 08:31:13,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-08 08:31:13,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:13,062 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:13,062 INFO L475 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) [2024-09-08 08:31:13,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 08:31:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 08:31:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:13,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:13,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 08:31:13,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 08:31:13,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:13,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 08:31:13,495 INFO L785 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-08 08:31:13,496 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-08 08:31:13,498 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-09-08 08:31:13,501 INFO L312 ceAbstractionStarter]: Result for error location readerThread1of1ForFork1 was SAFE (2/3) [2024-09-08 08:31:13,505 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 08:31:13,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 08:31:13,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 08:31:13,508 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) [2024-09-08 08:31:13,510 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 [2024-09-08 08:31:13,513 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 08:31:13,513 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 08:31:13,513 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48d1a524, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 08:31:13,514 INFO L337 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-09-08 08:31:13,615 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-09-08 08:31:13,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:13,616 INFO L85 PathProgramCache]: Analyzing trace with hash 361112444, now seen corresponding path program 1 times [2024-09-08 08:31:13,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:13,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597690338] [2024-09-08 08:31:13,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:13,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:13,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:13,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:13,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597690338] [2024-09-08 08:31:13,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597690338] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:13,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:13,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 08:31:13,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909803738] [2024-09-08 08:31:13,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:13,652 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 08:31:13,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:13,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 08:31:13,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-08 08:31:13,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:13,653 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:13,654 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 08:31:13,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:13,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:13,704 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-08 08:31:13,704 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-09-08 08:31:13,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:13,705 INFO L85 PathProgramCache]: Analyzing trace with hash -926273518, now seen corresponding path program 1 times [2024-09-08 08:31:13,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:13,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817205948] [2024-09-08 08:31:13,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:13,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:13,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:13,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817205948] [2024-09-08 08:31:13,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817205948] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:13,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:13,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 08:31:13,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792831644] [2024-09-08 08:31:13,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:13,750 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 08:31:13,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:13,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 08:31:13,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 08:31:13,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:13,750 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:13,751 INFO L475 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) [2024-09-08 08:31:13,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:13,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:13,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:13,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:13,919 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-08 08:31:13,919 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-09-08 08:31:13,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:13,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1697447421, now seen corresponding path program 1 times [2024-09-08 08:31:13,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:13,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51458833] [2024-09-08 08:31:13,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:13,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:13,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:13,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:13,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51458833] [2024-09-08 08:31:13,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51458833] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:13,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:13,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-08 08:31:13,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729950162] [2024-09-08 08:31:13,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:13,947 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 08:31:13,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:13,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 08:31:13,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 08:31:13,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:13,948 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:13,948 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 08:31:13,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:13,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:13,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:14,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:14,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:14,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:14,084 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-08 08:31:14,084 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-09-08 08:31:14,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:14,084 INFO L85 PathProgramCache]: Analyzing trace with hash 2103679636, now seen corresponding path program 1 times [2024-09-08 08:31:14,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:14,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521916310] [2024-09-08 08:31:14,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:14,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:14,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:14,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:14,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521916310] [2024-09-08 08:31:14,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521916310] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:14,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:14,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-08 08:31:14,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218759988] [2024-09-08 08:31:14,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:14,136 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 08:31:14,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:14,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 08:31:14,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-08 08:31:14,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:14,137 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:14,137 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 08:31:14,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:14,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:14,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:14,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 08:31:14,360 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-08 08:31:14,360 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-09-08 08:31:14,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:14,361 INFO L85 PathProgramCache]: Analyzing trace with hash -449978247, now seen corresponding path program 1 times [2024-09-08 08:31:14,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:14,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028786755] [2024-09-08 08:31:14,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:14,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:14,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:14,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:14,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028786755] [2024-09-08 08:31:14,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028786755] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:14,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:14,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 08:31:14,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579219431] [2024-09-08 08:31:14,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:14,442 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 08:31:14,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:14,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 08:31:14,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-08 08:31:14,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:14,443 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:14,443 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 08:31:14,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:14,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:14,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:14,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 08:31:14,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:14,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:14,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:14,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:14,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:14,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 08:31:14,771 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-08 08:31:14,771 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-09-08 08:31:14,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:14,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1791267567, now seen corresponding path program 1 times [2024-09-08 08:31:14,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:14,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326705139] [2024-09-08 08:31:14,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:14,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:14,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:14,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:14,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326705139] [2024-09-08 08:31:14,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326705139] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:14,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:14,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-08 08:31:14,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409765265] [2024-09-08 08:31:14,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:14,833 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 08:31:14,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:14,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 08:31:14,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-08 08:31:14,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:14,836 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:14,836 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 08:31:14,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:14,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:14,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:14,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:14,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 08:31:14,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:15,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:15,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:15,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:15,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:15,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:15,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:15,078 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-08 08:31:15,078 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-09-08 08:31:15,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:15,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1995285641, now seen corresponding path program 1 times [2024-09-08 08:31:15,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:15,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493976741] [2024-09-08 08:31:15,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:15,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:15,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:15,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:15,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493976741] [2024-09-08 08:31:15,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493976741] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:15,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:15,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 08:31:15,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898322126] [2024-09-08 08:31:15,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:15,200 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 08:31:15,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:15,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 08:31:15,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-08 08:31:15,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:15,201 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:15,202 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 08:31:15,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:15,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:15,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:15,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:15,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:15,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:15,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:16,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:16,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:16,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:16,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 08:31:16,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:16,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 08:31:16,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 08:31:16,043 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-08 08:31:16,044 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-09-08 08:31:16,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 08:31:16,044 INFO L85 PathProgramCache]: Analyzing trace with hash -221600127, now seen corresponding path program 1 times [2024-09-08 08:31:16,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 08:31:16,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894917240] [2024-09-08 08:31:16,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 08:31:16,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 08:31:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 08:31:16,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 08:31:16,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 08:31:16,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894917240] [2024-09-08 08:31:16,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894917240] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 08:31:16,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 08:31:16,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 08:31:16,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735736440] [2024-09-08 08:31:16,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 08:31:16,121 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 08:31:16,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 08:31:16,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 08:31:16,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-08 08:31:16,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:16,122 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 08:31:16,122 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 08:31:16,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:16,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:16,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:16,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 08:31:16,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 08:31:16,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 08:31:16,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 08:31:16,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 08:31:16,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 08:31:16,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:16,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 08:31:16,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 08:31:16,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 08:31:16,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 08:31:16,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 08:31:16,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 08:31:16,698 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-09-08 08:31:16,699 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-09-08 08:31:16,699 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-09-08 08:31:16,699 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-09-08 08:31:16,699 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-09-08 08:31:16,699 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-09-08 08:31:16,699 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-09-08 08:31:16,699 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-09-08 08:31:16,699 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-08 08:31:16,701 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-08 08:31:16,701 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (3/3) [2024-09-08 08:31:16,701 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-08 08:31:16,702 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-08 08:31:16,705 INFO L469 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-09-08 08:31:16,705 INFO L470 ceAbstractionStarter]: WitnessConsidered=4 [2024-09-08 08:31:16,706 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 08:31:16 BasicIcfg [2024-09-08 08:31:16,706 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-08 08:31:16,707 INFO L158 Benchmark]: Toolchain (without parser) took 9539.18ms. Allocated memory was 159.4MB in the beginning and 297.8MB in the end (delta: 138.4MB). Free memory was 131.0MB in the beginning and 214.9MB in the end (delta: -83.9MB). Peak memory consumption was 187.7MB. Max. memory is 16.1GB. [2024-09-08 08:31:16,707 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 08:31:16,707 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 159.4MB. Free memory was 130.8MB in the beginning and 130.8MB in the end (delta: 17.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 08:31:16,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 625.78ms. Allocated memory is still 159.4MB. Free memory was 131.0MB in the beginning and 103.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-09-08 08:31:16,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.47ms. Allocated memory is still 159.4MB. Free memory was 103.8MB in the beginning and 101.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-08 08:31:16,708 INFO L158 Benchmark]: Boogie Preprocessor took 27.72ms. Allocated memory is still 159.4MB. Free memory was 101.7MB in the beginning and 99.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-08 08:31:16,708 INFO L158 Benchmark]: RCFGBuilder took 551.56ms. Allocated memory is still 159.4MB. Free memory was 99.6MB in the beginning and 69.2MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-09-08 08:31:16,708 INFO L158 Benchmark]: TraceAbstraction took 8270.38ms. Allocated memory was 159.4MB in the beginning and 297.8MB in the end (delta: 138.4MB). Free memory was 69.2MB in the beginning and 214.9MB in the end (delta: -145.7MB). Peak memory consumption was 124.8MB. Max. memory is 16.1GB. [2024-09-08 08:31:16,710 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 159.4MB. Free memory was 130.8MB in the beginning and 130.8MB in the end (delta: 17.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 625.78ms. Allocated memory is still 159.4MB. Free memory was 131.0MB in the beginning and 103.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.47ms. Allocated memory is still 159.4MB. Free memory was 103.8MB in the beginning and 101.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.72ms. Allocated memory is still 159.4MB. Free memory was 101.7MB in the beginning and 99.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 551.56ms. Allocated memory is still 159.4MB. Free memory was 99.6MB in the beginning and 69.2MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8270.38ms. Allocated memory was 159.4MB in the beginning and 297.8MB in the end (delta: 138.4MB). Free memory was 69.2MB in the beginning and 214.9MB in the end (delta: -145.7MB). Peak memory consumption was 124.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6365, independent: 6098, independent conditional: 4020, 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: 6184, independent: 6098, independent conditional: 4020, 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: 6184, independent: 6098, independent conditional: 4020, 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: 6523, independent: 6098, independent conditional: 4020, independent unconditional: 2078, dependent: 425, dependent conditional: 362, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6523, independent: 6098, independent conditional: 165, independent unconditional: 5933, 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: 6523, independent: 6098, independent conditional: 165, independent unconditional: 5933, 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: 687, independent: 511, independent conditional: 48, independent unconditional: 463, dependent: 176, dependent conditional: 20, dependent unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 6523, independent: 3993, independent conditional: 144, independent unconditional: 3849, 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: 4132, Maximal queried relation: 3, Independence queries for same thread: 181, Persistent sets #1 benchmarks: Persistent set computation time: 0.8s, 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: 6365, independent: 6098, independent conditional: 4020, 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: 6184, independent: 6098, independent conditional: 4020, 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: 6184, independent: 6098, independent conditional: 4020, 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: 6523, independent: 6098, independent conditional: 4020, independent unconditional: 2078, dependent: 425, dependent conditional: 362, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6523, independent: 6098, independent conditional: 165, independent unconditional: 5933, 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: 6523, independent: 6098, independent conditional: 165, independent unconditional: 5933, 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: 687, independent: 511, independent conditional: 48, independent unconditional: 463, dependent: 176, dependent conditional: 20, dependent unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 6523, independent: 3993, independent conditional: 144, independent unconditional: 3849, 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: 4132, Maximal queried relation: 3, Independence queries for same thread: 181 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11690, independent: 11228, independent conditional: 8969, independent unconditional: 2259, dependent: 462, dependent conditional: 398, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11322, independent: 11228, independent conditional: 8969, independent unconditional: 2259, dependent: 94, dependent conditional: 30, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11322, independent: 11228, independent conditional: 8969, independent unconditional: 2259, dependent: 94, dependent conditional: 30, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11766, independent: 11228, independent conditional: 8969, independent unconditional: 2259, dependent: 538, dependent conditional: 474, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11766, independent: 11228, independent conditional: 224, independent unconditional: 11004, dependent: 538, dependent conditional: 117, dependent unconditional: 421, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11766, independent: 11228, independent conditional: 224, independent unconditional: 11004, dependent: 538, dependent conditional: 117, dependent unconditional: 421, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2376, independent: 2290, independent conditional: 25, independent unconditional: 2265, dependent: 86, dependent conditional: 18, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2376, independent: 2130, independent conditional: 0, independent unconditional: 2130, dependent: 246, dependent conditional: 0, dependent unconditional: 246, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 246, independent: 160, independent conditional: 25, independent unconditional: 135, dependent: 86, dependent conditional: 18, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 246, independent: 160, independent conditional: 25, independent unconditional: 135, dependent: 86, dependent conditional: 18, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 426, independent: 318, independent conditional: 45, independent unconditional: 273, dependent: 108, dependent conditional: 22, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 11766, independent: 8938, independent conditional: 199, independent unconditional: 8739, dependent: 452, dependent conditional: 99, dependent unconditional: 353, unknown: 2376, unknown conditional: 43, unknown unconditional: 2333] , Statistics on independence cache: Total cache size (in pairs): 2376, Positive cache size: 2290, Positive conditional cache size: 25, Positive unconditional cache size: 2265, Negative cache size: 86, Negative conditional cache size: 18, Negative unconditional cache size: 68, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9102, Maximal queried relation: 4, Independence queries for same thread: 368, Persistent sets #1 benchmarks: Persistent set computation time: 0.4s, Number of persistent set computation: 1210, Number of trivial persistent sets: 774, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2323, independent: 2259, independent conditional: 0, independent unconditional: 2259, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11690, independent: 11228, independent conditional: 8969, independent unconditional: 2259, dependent: 462, dependent conditional: 398, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11322, independent: 11228, independent conditional: 8969, independent unconditional: 2259, dependent: 94, dependent conditional: 30, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11322, independent: 11228, independent conditional: 8969, independent unconditional: 2259, dependent: 94, dependent conditional: 30, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11766, independent: 11228, independent conditional: 8969, independent unconditional: 2259, dependent: 538, dependent conditional: 474, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11766, independent: 11228, independent conditional: 224, independent unconditional: 11004, dependent: 538, dependent conditional: 117, dependent unconditional: 421, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11766, independent: 11228, independent conditional: 224, independent unconditional: 11004, dependent: 538, dependent conditional: 117, dependent unconditional: 421, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2376, independent: 2290, independent conditional: 25, independent unconditional: 2265, dependent: 86, dependent conditional: 18, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2376, independent: 2130, independent conditional: 0, independent unconditional: 2130, dependent: 246, dependent conditional: 0, dependent unconditional: 246, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 246, independent: 160, independent conditional: 25, independent unconditional: 135, dependent: 86, dependent conditional: 18, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 246, independent: 160, independent conditional: 25, independent unconditional: 135, dependent: 86, dependent conditional: 18, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 426, independent: 318, independent conditional: 45, independent unconditional: 273, dependent: 108, dependent conditional: 22, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 11766, independent: 8938, independent conditional: 199, independent unconditional: 8739, dependent: 452, dependent conditional: 99, dependent unconditional: 353, unknown: 2376, unknown conditional: 43, unknown unconditional: 2333] , Statistics on independence cache: Total cache size (in pairs): 2376, Positive cache size: 2290, Positive conditional cache size: 25, Positive unconditional cache size: 2265, Negative cache size: 86, Negative conditional cache size: 18, Negative unconditional cache size: 68, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9102, Maximal queried relation: 4, Independence queries for same thread: 368 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 25037, independent: 24064, independent conditional: 21741, independent unconditional: 2323, dependent: 973, dependent conditional: 907, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24449, independent: 24064, independent conditional: 21741, independent unconditional: 2323, dependent: 385, dependent conditional: 319, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 24449, independent: 24064, independent conditional: 21741, independent unconditional: 2323, dependent: 385, dependent conditional: 319, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25857, independent: 24064, independent conditional: 21741, independent unconditional: 2323, dependent: 1793, dependent conditional: 1727, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 25857, independent: 24064, independent conditional: 17, independent unconditional: 24047, dependent: 1793, dependent conditional: 542, dependent unconditional: 1251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25857, independent: 24064, independent conditional: 17, independent unconditional: 24047, dependent: 1793, dependent conditional: 542, dependent unconditional: 1251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2468, independent: 2331, independent conditional: 4, independent unconditional: 2327, dependent: 137, dependent conditional: 69, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2468, independent: 2182, independent conditional: 0, independent unconditional: 2182, dependent: 286, dependent conditional: 0, dependent unconditional: 286, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 286, independent: 149, independent conditional: 4, independent unconditional: 145, dependent: 137, dependent conditional: 69, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 286, independent: 149, independent conditional: 4, independent unconditional: 145, dependent: 137, dependent conditional: 69, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 399, independent: 256, independent conditional: 5, independent unconditional: 251, dependent: 143, dependent conditional: 65, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 25857, independent: 21733, independent conditional: 13, independent unconditional: 21720, dependent: 1656, dependent conditional: 473, dependent unconditional: 1183, unknown: 2468, unknown conditional: 73, unknown unconditional: 2395] , Statistics on independence cache: Total cache size (in pairs): 2468, Positive cache size: 2331, Positive conditional cache size: 4, Positive unconditional cache size: 2327, Negative cache size: 137, Negative conditional cache size: 69, Negative unconditional cache size: 68, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 22909, Maximal queried relation: 7, Independence queries for same thread: 588, Persistent sets #1 benchmarks: Persistent set computation time: 0.5s, Number of persistent set computation: 2614, Number of trivial persistent sets: 2614, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2389, independent: 2323, independent conditional: 0, independent unconditional: 2323, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 25037, independent: 24064, independent conditional: 21741, independent unconditional: 2323, dependent: 973, dependent conditional: 907, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24449, independent: 24064, independent conditional: 21741, independent unconditional: 2323, dependent: 385, dependent conditional: 319, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 24449, independent: 24064, independent conditional: 21741, independent unconditional: 2323, dependent: 385, dependent conditional: 319, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25857, independent: 24064, independent conditional: 21741, independent unconditional: 2323, dependent: 1793, dependent conditional: 1727, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 25857, independent: 24064, independent conditional: 17, independent unconditional: 24047, dependent: 1793, dependent conditional: 542, dependent unconditional: 1251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25857, independent: 24064, independent conditional: 17, independent unconditional: 24047, dependent: 1793, dependent conditional: 542, dependent unconditional: 1251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2468, independent: 2331, independent conditional: 4, independent unconditional: 2327, dependent: 137, dependent conditional: 69, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2468, independent: 2182, independent conditional: 0, independent unconditional: 2182, dependent: 286, dependent conditional: 0, dependent unconditional: 286, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 286, independent: 149, independent conditional: 4, independent unconditional: 145, dependent: 137, dependent conditional: 69, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 286, independent: 149, independent conditional: 4, independent unconditional: 145, dependent: 137, dependent conditional: 69, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 399, independent: 256, independent conditional: 5, independent unconditional: 251, dependent: 143, dependent conditional: 65, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 25857, independent: 21733, independent conditional: 13, independent unconditional: 21720, dependent: 1656, dependent conditional: 473, dependent unconditional: 1183, unknown: 2468, unknown conditional: 73, unknown unconditional: 2395] , Statistics on independence cache: Total cache size (in pairs): 2468, Positive cache size: 2331, Positive conditional cache size: 4, Positive unconditional cache size: 2327, Negative cache size: 137, Negative conditional cache size: 69, Negative unconditional cache size: 68, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 22909, Maximal queried relation: 7, Independence queries for same thread: 588 - 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: 2.8s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.8s, 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, 0.6s 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: 2.1s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.6s, 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: 34, 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, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 378 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: 3.2s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 2.7s, 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: 55, 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, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 177 ConstructedInterpolants, 0 QuantifiedInterpolants, 511 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! [2024-09-08 08:31:16,741 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 [2024-09-08 08:31:16,936 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 [2024-09-08 08:31:17,136 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-09-08 08:31:17,336 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