./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/read_write_lock-1-pthread.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c091e2ee Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/read_write_lock-1-pthread.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-c091e2e-m [2024-08-13 14:55:00,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-13 14:55:00,124 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-13 14:55:00,129 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-13 14:55:00,130 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-13 14:55:00,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-13 14:55:00,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-13 14:55:00,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-13 14:55:00,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-13 14:55:00,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-13 14:55:00,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-13 14:55:00,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-13 14:55:00,163 INFO L153 SettingsManager]: * Use SBE=true [2024-08-13 14:55:00,164 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-13 14:55:00,165 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-13 14:55:00,165 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-13 14:55:00,165 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-13 14:55:00,165 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-13 14:55:00,166 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-13 14:55:00,166 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-13 14:55:00,166 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-13 14:55:00,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-13 14:55:00,169 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-13 14:55:00,169 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-13 14:55:00,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-13 14:55:00,169 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-13 14:55:00,170 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-13 14:55:00,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-13 14:55:00,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-13 14:55:00,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-13 14:55:00,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 14:55:00,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-13 14:55:00,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-13 14:55:00,171 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-13 14:55:00,171 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-13 14:55:00,172 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-13 14:55:00,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-13 14:55:00,172 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-13 14:55:00,173 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-13 14:55:00,174 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-13 14:55:00,174 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-13 14:55:00,174 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-13 14:55:00,174 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-13 14:55:00,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-13 14:55:00,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-13 14:55:00,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-13 14:55:00,524 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-13 14:55:00,525 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-13 14:55:00,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/read_write_lock-1-pthread.yml/witness.yml [2024-08-13 14:55:00,657 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-13 14:55:00,658 INFO L274 PluginConnector]: CDTParser initialized [2024-08-13 14:55:00,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i [2024-08-13 14:55:02,187 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-13 14:55:02,457 INFO L384 CDTParser]: Found 1 translation units. [2024-08-13 14:55:02,460 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i [2024-08-13 14:55:02,473 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bdf756480/fee2ffef17224263bc91deb81fff16dd/FLAGd8aabe2f1 [2024-08-13 14:55:02,767 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bdf756480/fee2ffef17224263bc91deb81fff16dd [2024-08-13 14:55:02,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-13 14:55:02,768 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-13 14:55:02,770 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-13 14:55:02,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-13 14:55:02,776 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-13 14:55:02,777 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 02:55:00" (1/2) ... [2024-08-13 14:55:02,778 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b3e655 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 02:55:02, skipping insertion in model container [2024-08-13 14:55:02,778 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 02:55:00" (1/2) ... [2024-08-13 14:55:02,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@44d4359c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 02:55:02, skipping insertion in model container [2024-08-13 14:55:02,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 02:55:02" (2/2) ... [2024-08-13 14:55:02,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b3e655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 02:55:02, skipping insertion in model container [2024-08-13 14:55:02,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 02:55:02" (2/2) ... [2024-08-13 14:55:02,781 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-13 14:55:02,841 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-13 14:55:02,843 INFO L97 edCorrectnessWitness]: Location invariant before [L720-L720] (((! multithreaded || (x == 0 || x == 3)) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (rwlock_locked || (x == 0 || x == 3))) [2024-08-13 14:55:02,843 INFO L97 edCorrectnessWitness]: Location invariant before [L719-L719] (((! multithreaded || (x == 0 || x == 3)) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (rwlock_locked || (x == 0 || x == 3))) [2024-08-13 14:55:02,843 INFO L97 edCorrectnessWitness]: Location invariant before [L717-L717] (((! multithreaded || (x == 0 || x == 3)) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (rwlock_locked || (x == 0 || x == 3))) [2024-08-13 14:55:02,844 INFO L97 edCorrectnessWitness]: Location invariant before [L718-L718] (((! multithreaded || (x == 0 || x == 3)) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (y == 0 || y == 3))) && (! multithreaded || (rwlock_locked || (x == 0 || x == 3))) [2024-08-13 14:55:02,844 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-13 14:55:02,844 INFO L103 edCorrectnessWitness]: ghost_variable rwlock_locked = 0 [2024-08-13 14:55:02,844 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] rwlock_locked = 1; [2024-08-13 14:55:02,844 INFO L106 edCorrectnessWitness]: ghost_update [L711-L711] rwlock_locked = 0; [2024-08-13 14:55:02,845 INFO L106 edCorrectnessWitness]: ghost_update [L716-L716] multithreaded = 1; [2024-08-13 14:55:02,845 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] rwlock_locked = 1; [2024-08-13 14:55:02,845 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] rwlock_locked = 0; [2024-08-13 14:55:02,889 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-13 14:55:03,221 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i[30919,30932] [2024-08-13 14:55:03,237 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 14:55:03,255 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-13 14:55:03,339 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i[30919,30932] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-13 14:55:03,359 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 14:55:03,403 INFO L206 MainTranslator]: Completed translation [2024-08-13 14:55:03,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 02:55:03 WrapperNode [2024-08-13 14:55:03,403 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-13 14:55:03,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-13 14:55:03,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-13 14:55:03,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-13 14:55:03,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 02:55:03" (1/1) ... [2024-08-13 14:55:03,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 02:55:03" (1/1) ... [2024-08-13 14:55:03,481 INFO L138 Inliner]: procedures = 165, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2024-08-13 14:55:03,481 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-13 14:55:03,482 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-13 14:55:03,482 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-13 14:55:03,482 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-13 14:55:03,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 02:55:03" (1/1) ... [2024-08-13 14:55:03,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 02:55:03" (1/1) ... [2024-08-13 14:55:03,498 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 02:55:03" (1/1) ... [2024-08-13 14:55:03,498 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 02:55:03" (1/1) ... [2024-08-13 14:55:03,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 02:55:03" (1/1) ... [2024-08-13 14:55:03,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 02:55:03" (1/1) ... [2024-08-13 14:55:03,507 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 02:55:03" (1/1) ... [2024-08-13 14:55:03,509 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 02:55:03" (1/1) ... [2024-08-13 14:55:03,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-13 14:55:03,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-13 14:55:03,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-13 14:55:03,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-13 14:55:03,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 02:55:03" (1/1) ... [2024-08-13 14:55:03,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 14:55:03,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 14:55:03,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-13 14:55:03,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-13 14:55:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2024-08-13 14:55:03,643 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2024-08-13 14:55:03,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-13 14:55:03,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-13 14:55:03,643 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-08-13 14:55:03,643 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-08-13 14:55:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2024-08-13 14:55:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-13 14:55:03,644 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-13 14:55:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-13 14:55:03,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-13 14:55:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-08-13 14:55:03,646 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-08-13 14:55:03,647 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-08-13 14:55:03,802 INFO L244 CfgBuilder]: Building ICFG [2024-08-13 14:55:03,808 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-13 14:55:04,055 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-08-13 14:55:04,055 INFO L293 CfgBuilder]: Performing block encoding [2024-08-13 14:55:04,170 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-13 14:55:04,170 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-13 14:55:04,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 02:55:04 BoogieIcfgContainer [2024-08-13 14:55:04,171 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-13 14:55:04,173 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-13 14:55:04,173 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-13 14:55:04,176 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-13 14:55:04,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 02:55:00" (1/4) ... [2024-08-13 14:55:04,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d9089d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.08 02:55:04, skipping insertion in model container [2024-08-13 14:55:04,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 02:55:02" (2/4) ... [2024-08-13 14:55:04,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d9089d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 02:55:04, skipping insertion in model container [2024-08-13 14:55:04,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 02:55:03" (3/4) ... [2024-08-13 14:55:04,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d9089d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 02:55:04, skipping insertion in model container [2024-08-13 14:55:04,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 02:55:04" (4/4) ... [2024-08-13 14:55:04,179 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1-pthread.i [2024-08-13 14:55:04,198 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-13 14:55:04,198 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-08-13 14:55:04,198 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-13 14:55:04,271 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-08-13 14:55:04,318 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 14:55:04,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 14:55:04,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 14:55:04,321 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-13 14:55:04,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-13 14:55:04,366 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 14:55:04,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of1ForFork0 ======== [2024-08-13 14:55:04,385 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1babab10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 14:55:04,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-13 14:55:04,711 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 14:55:04,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:04,719 INFO L85 PathProgramCache]: Analyzing trace with hash -486690271, now seen corresponding path program 1 times [2024-08-13 14:55:04,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:04,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395559439] [2024-08-13 14:55:04,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:04,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:05,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:05,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:05,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395559439] [2024-08-13 14:55:05,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395559439] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:05,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:05,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 14:55:05,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462273951] [2024-08-13 14:55:05,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:05,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 14:55:05,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:05,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 14:55:05,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 14:55:05,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:05,239 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:05,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:05,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:05,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:05,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-13 14:55:05,670 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 14:55:05,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:05,670 INFO L85 PathProgramCache]: Analyzing trace with hash 2039083871, now seen corresponding path program 1 times [2024-08-13 14:55:05,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:05,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561392762] [2024-08-13 14:55:05,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:05,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:05,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:05,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561392762] [2024-08-13 14:55:05,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561392762] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:05,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:05,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-13 14:55:05,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403780950] [2024-08-13 14:55:05,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:05,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 14:55:05,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:05,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 14:55:05,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-08-13 14:55:05,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:05,805 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:05,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:05,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:05,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:06,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:06,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 14:55:06,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-13 14:55:06,102 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 14:55:06,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:06,102 INFO L85 PathProgramCache]: Analyzing trace with hash -789279932, now seen corresponding path program 1 times [2024-08-13 14:55:06,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:06,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874203710] [2024-08-13 14:55:06,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:06,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:06,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:06,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:06,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874203710] [2024-08-13 14:55:06,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874203710] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:06,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:06,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 14:55:06,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859263582] [2024-08-13 14:55:06,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:06,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 14:55:06,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:06,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 14:55:06,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 14:55:06,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:06,201 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:06,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) [2024-08-13 14:55:06,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:06,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 14:55:06,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:06,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:06,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 14:55:06,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:06,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-08-13 14:55:06,508 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 14:55:06,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:06,509 INFO L85 PathProgramCache]: Analyzing trace with hash 900982179, now seen corresponding path program 1 times [2024-08-13 14:55:06,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:06,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640683177] [2024-08-13 14:55:06,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:06,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:06,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:06,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640683177] [2024-08-13 14:55:06,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640683177] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:06,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:06,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-13 14:55:06,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782086501] [2024-08-13 14:55:06,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:06,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 14:55:06,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:06,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 14:55:06,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-08-13 14:55:06,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:06,641 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:06,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:06,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:06,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 14:55:06,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:06,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:07,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:07,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 14:55:07,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:07,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 14:55:07,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-13 14:55:07,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-13 14:55:07,116 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-08-13 14:55:07,117 INFO L308 ceAbstractionStarter]: Result for error location readerThread1of1ForFork0 was SAFE (1/3) [2024-08-13 14:55:07,121 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 14:55:07,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 14:55:07,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 14:55:07,141 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-13 14:55:07,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-08-13 14:55:07,145 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 14:55:07,146 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of1ForFork1 ======== [2024-08-13 14:55:07,146 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1babab10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 14:55:07,146 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-13 14:55:07,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 14:55:07,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:07,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1809225898, now seen corresponding path program 1 times [2024-08-13 14:55:07,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:07,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553670573] [2024-08-13 14:55:07,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:07,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:07,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:07,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:07,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553670573] [2024-08-13 14:55:07,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553670573] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:07,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:07,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 14:55:07,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111045751] [2024-08-13 14:55:07,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:07,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 14:55:07,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:07,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 14:55:07,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 14:55:07,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:07,443 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:07,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:07,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:07,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:07,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-08-13 14:55:07,685 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 14:55:07,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:07,685 INFO L85 PathProgramCache]: Analyzing trace with hash 565839590, now seen corresponding path program 1 times [2024-08-13 14:55:07,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:07,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056910506] [2024-08-13 14:55:07,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:07,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:07,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:07,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:07,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056910506] [2024-08-13 14:55:07,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056910506] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:07,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:07,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-13 14:55:07,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325744972] [2024-08-13 14:55:07,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:07,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 14:55:07,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:07,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 14:55:07,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-08-13 14:55:07,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:07,761 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:07,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:07,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:07,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:08,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:08,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 14:55:08,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-08-13 14:55:08,014 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 14:55:08,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:08,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1569755366, now seen corresponding path program 1 times [2024-08-13 14:55:08,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:08,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039101322] [2024-08-13 14:55:08,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:08,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:08,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:08,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:08,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039101322] [2024-08-13 14:55:08,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039101322] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:08,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:08,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 14:55:08,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644913234] [2024-08-13 14:55:08,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:08,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 14:55:08,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:08,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 14:55:08,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 14:55:08,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:08,168 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:08,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:08,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:08,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 14:55:08,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:08,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:08,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 14:55:08,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:08,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-08-13 14:55:08,238 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 14:55:08,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:08,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1926162085, now seen corresponding path program 1 times [2024-08-13 14:55:08,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:08,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631993936] [2024-08-13 14:55:08,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:08,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:08,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:08,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:08,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631993936] [2024-08-13 14:55:08,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631993936] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:08,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:08,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-13 14:55:08,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725775676] [2024-08-13 14:55:08,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:08,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 14:55:08,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:08,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 14:55:08,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-08-13 14:55:08,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:08,308 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:08,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:08,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:08,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 14:55:08,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:08,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:08,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:08,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-13 14:55:08,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:08,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 14:55:08,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-08-13 14:55:08,610 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 14:55:08,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:08,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1169191205, now seen corresponding path program 2 times [2024-08-13 14:55:08,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:08,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375457645] [2024-08-13 14:55:08,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:08,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:08,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:08,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375457645] [2024-08-13 14:55:08,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375457645] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:08,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:08,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-13 14:55:08,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768696934] [2024-08-13 14:55:08,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:08,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 14:55:08,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:08,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 14:55:08,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-08-13 14:55:08,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:08,718 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:08,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:08,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:08,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-13 14:55:08,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:08,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 14:55:08,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:09,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:09,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-13 14:55:09,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:09,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-13 14:55:09,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 14:55:09,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-13 14:55:09,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-08-13 14:55:09,151 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-08-13 14:55:09,152 INFO L308 ceAbstractionStarter]: Result for error location readerThread1of1ForFork1 was SAFE (2/3) [2024-08-13 14:55:09,156 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 14:55:09,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 14:55:09,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 14:55:09,158 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-13 14:55:09,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-08-13 14:55:09,162 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 14:55:09,163 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-13 14:55:09,164 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1babab10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 14:55:09,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-08-13 14:55:09,250 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-13 14:55:09,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:09,251 INFO L85 PathProgramCache]: Analyzing trace with hash -2051470976, now seen corresponding path program 1 times [2024-08-13 14:55:09,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:09,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888234770] [2024-08-13 14:55:09,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:09,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:09,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:09,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888234770] [2024-08-13 14:55:09,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888234770] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:09,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:09,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-13 14:55:09,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660963209] [2024-08-13 14:55:09,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:09,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 14:55:09,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:09,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 14:55:09,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 14:55:09,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:09,299 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:09,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:09,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:09,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-08-13 14:55:09,352 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-13 14:55:09,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:09,352 INFO L85 PathProgramCache]: Analyzing trace with hash 442090731, now seen corresponding path program 1 times [2024-08-13 14:55:09,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:09,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541499926] [2024-08-13 14:55:09,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:09,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:09,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:09,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:09,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541499926] [2024-08-13 14:55:09,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541499926] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:09,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:09,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 14:55:09,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443986666] [2024-08-13 14:55:09,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:09,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 14:55:09,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:09,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 14:55:09,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 14:55:09,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:09,408 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:09,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) [2024-08-13 14:55:09,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:09,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:09,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:09,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:09,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-08-13 14:55:09,601 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-13 14:55:09,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:09,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1184429205, now seen corresponding path program 1 times [2024-08-13 14:55:09,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:09,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130802401] [2024-08-13 14:55:09,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:09,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:09,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:09,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130802401] [2024-08-13 14:55:09,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130802401] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:09,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:09,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-08-13 14:55:09,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783622368] [2024-08-13 14:55:09,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:09,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 14:55:09,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:09,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 14:55:09,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 14:55:09,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:09,638 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:09,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:09,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:09,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:09,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:09,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:09,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:09,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:09,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-08-13 14:55:09,772 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-13 14:55:09,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:09,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1054518953, now seen corresponding path program 1 times [2024-08-13 14:55:09,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:09,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031852679] [2024-08-13 14:55:09,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:09,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:09,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:09,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:09,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031852679] [2024-08-13 14:55:09,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031852679] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:09,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:09,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 14:55:09,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228722248] [2024-08-13 14:55:09,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:09,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-13 14:55:09,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:09,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-13 14:55:09,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-08-13 14:55:09,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:09,853 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:09,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:09,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:09,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:09,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:09,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:09,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:09,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:09,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:09,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:09,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-08-13 14:55:09,993 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-13 14:55:09,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:09,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1888615877, now seen corresponding path program 1 times [2024-08-13 14:55:09,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:09,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465367346] [2024-08-13 14:55:09,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:09,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:10,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:10,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:10,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465367346] [2024-08-13 14:55:10,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465367346] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:10,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:10,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 14:55:10,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292742800] [2024-08-13 14:55:10,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:10,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 14:55:10,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:10,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 14:55:10,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 14:55:10,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:10,070 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:10,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:10,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:10,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:10,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:10,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:10,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:10,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:10,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:10,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:10,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 14:55:10,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:10,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-08-13 14:55:10,210 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-13 14:55:10,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:10,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1688994631, now seen corresponding path program 1 times [2024-08-13 14:55:10,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:10,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086670768] [2024-08-13 14:55:10,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:10,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:10,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:10,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086670768] [2024-08-13 14:55:10,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086670768] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:10,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:10,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-08-13 14:55:10,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611441494] [2024-08-13 14:55:10,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:10,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-13 14:55:10,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:10,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-13 14:55:10,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-08-13 14:55:10,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:10,379 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:10,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:10,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:10,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:10,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:10,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 14:55:10,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:10,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:10,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:10,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:10,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:10,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 14:55:10,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:10,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-13 14:55:10,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-08-13 14:55:10,710 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-13 14:55:10,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:10,712 INFO L85 PathProgramCache]: Analyzing trace with hash -304868935, now seen corresponding path program 1 times [2024-08-13 14:55:10,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:10,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488177825] [2024-08-13 14:55:10,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:10,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:10,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:10,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488177825] [2024-08-13 14:55:10,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488177825] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:10,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:10,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-13 14:55:10,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450805331] [2024-08-13 14:55:10,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:10,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 14:55:10,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:10,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 14:55:10,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 14:55:10,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:10,816 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:10,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:10,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:10,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:10,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:10,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 14:55:10,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:10,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-13 14:55:10,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:10,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:10,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:10,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:10,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 14:55:10,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:10,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-13 14:55:10,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:10,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-08-13 14:55:10,964 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-08-13 14:55:10,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 14:55:10,965 INFO L85 PathProgramCache]: Analyzing trace with hash -89134920, now seen corresponding path program 1 times [2024-08-13 14:55:10,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 14:55:10,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143827047] [2024-08-13 14:55:10,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 14:55:10,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 14:55:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 14:55:11,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 14:55:11,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 14:55:11,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143827047] [2024-08-13 14:55:11,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143827047] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 14:55:11,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 14:55:11,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 14:55:11,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663645457] [2024-08-13 14:55:11,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 14:55:11,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-13 14:55:11,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 14:55:11,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-13 14:55:11,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-08-13 14:55:11,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:11,051 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 14:55:11,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 14:55:11,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:11,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:11,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:11,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 14:55:11,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:11,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-13 14:55:11,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:11,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 14:55:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:11,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 14:55:11,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 14:55:11,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:11,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-13 14:55:11,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 14:55:11,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 14:55:11,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-08-13 14:55:11,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-08-13 14:55:11,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-08-13 14:55:11,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-08-13 14:55:11,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-08-13 14:55:11,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-08-13 14:55:11,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-08-13 14:55:11,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-08-13 14:55:11,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-08-13 14:55:11,607 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-08-13 14:55:11,608 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (3/3) [2024-08-13 14:55:11,608 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-08-13 14:55:11,608 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-08-13 14:55:11,611 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-08-13 14:55:11,611 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-08-13 14:55:11,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 02:55:11 BasicIcfg [2024-08-13 14:55:11,612 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-13 14:55:11,613 INFO L158 Benchmark]: Toolchain (without parser) took 8844.85ms. Allocated memory was 176.2MB in the beginning and 257.9MB in the end (delta: 81.8MB). Free memory was 124.3MB in the beginning and 155.7MB in the end (delta: -31.4MB). Peak memory consumption was 136.4MB. Max. memory is 16.1GB. [2024-08-13 14:55:11,613 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 98.6MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 14:55:11,613 INFO L158 Benchmark]: CDTParser took 1.02ms. Allocated memory is still 98.6MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-13 14:55:11,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 633.60ms. Allocated memory is still 176.2MB. Free memory was 123.3MB in the beginning and 96.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-08-13 14:55:11,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.71ms. Allocated memory is still 176.2MB. Free memory was 96.0MB in the beginning and 143.5MB in the end (delta: -47.5MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-08-13 14:55:11,614 INFO L158 Benchmark]: Boogie Preprocessor took 36.22ms. Allocated memory is still 176.2MB. Free memory was 143.5MB in the beginning and 142.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-13 14:55:11,614 INFO L158 Benchmark]: RCFGBuilder took 650.81ms. Allocated memory is still 176.2MB. Free memory was 142.0MB in the beginning and 110.5MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-08-13 14:55:11,614 INFO L158 Benchmark]: TraceAbstraction took 7439.58ms. Allocated memory was 176.2MB in the beginning and 257.9MB in the end (delta: 81.8MB). Free memory was 109.5MB in the beginning and 155.7MB in the end (delta: -46.2MB). Peak memory consumption was 124.7MB. Max. memory is 16.1GB. [2024-08-13 14:55:11,615 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.22ms. Allocated memory is still 98.6MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 1.02ms. Allocated memory is still 98.6MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 633.60ms. Allocated memory is still 176.2MB. Free memory was 123.3MB in the beginning and 96.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.71ms. Allocated memory is still 176.2MB. Free memory was 96.0MB in the beginning and 143.5MB in the end (delta: -47.5MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.22ms. Allocated memory is still 176.2MB. Free memory was 143.5MB in the beginning and 142.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 650.81ms. Allocated memory is still 176.2MB. Free memory was 142.0MB in the beginning and 110.5MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7439.58ms. Allocated memory was 176.2MB in the beginning and 257.9MB in the end (delta: 81.8MB). Free memory was 109.5MB in the beginning and 155.7MB in the end (delta: -46.2MB). Peak memory consumption was 124.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6026, independent: 5762, independent conditional: 3844, independent unconditional: 1918, dependent: 264, dependent conditional: 204, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5845, independent: 5762, independent conditional: 3844, independent unconditional: 1918, dependent: 83, dependent conditional: 23, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5845, independent: 5762, independent conditional: 3844, independent unconditional: 1918, dependent: 83, dependent conditional: 23, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6184, independent: 5762, independent conditional: 165, independent unconditional: 5597, dependent: 422, dependent conditional: 174, dependent unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6184, independent: 5762, independent conditional: 165, independent unconditional: 5597, dependent: 422, dependent conditional: 85, dependent unconditional: 337, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6184, independent: 5762, independent conditional: 165, independent unconditional: 5597, dependent: 422, dependent conditional: 85, dependent unconditional: 337, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2022, independent: 1945, independent conditional: 21, independent unconditional: 1924, dependent: 77, dependent conditional: 13, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2022, independent: 1793, independent conditional: 0, independent unconditional: 1793, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 229, independent: 152, independent conditional: 21, independent unconditional: 131, dependent: 77, dependent conditional: 13, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 229, independent: 152, independent conditional: 21, independent unconditional: 131, dependent: 77, dependent conditional: 13, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 710, independent: 528, independent conditional: 49, independent unconditional: 479, dependent: 182, dependent conditional: 22, dependent unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 6184, independent: 3817, independent conditional: 144, independent unconditional: 3673, dependent: 345, dependent conditional: 72, dependent unconditional: 273, unknown: 2022, unknown conditional: 34, unknown unconditional: 1988] , Statistics on independence cache: Total cache size (in pairs): 2022, Positive cache size: 1945, Positive conditional cache size: 21, Positive unconditional cache size: 1924, Negative cache size: 77, Negative conditional cache size: 13, Negative unconditional cache size: 64, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 89, Maximal queried relation: 3, Independence queries for same thread: 181 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.8s, Number of persistent set computation: 622, Number of trivial persistent sets: 366, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1978, independent: 1918, independent conditional: 0, independent unconditional: 1918, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6026, independent: 5762, independent conditional: 3844, independent unconditional: 1918, dependent: 264, dependent conditional: 204, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5845, independent: 5762, independent conditional: 3844, independent unconditional: 1918, dependent: 83, dependent conditional: 23, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5845, independent: 5762, independent conditional: 3844, independent unconditional: 1918, dependent: 83, dependent conditional: 23, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6184, independent: 5762, independent conditional: 165, independent unconditional: 5597, dependent: 422, dependent conditional: 174, dependent unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6184, independent: 5762, independent conditional: 165, independent unconditional: 5597, dependent: 422, dependent conditional: 85, dependent unconditional: 337, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6184, independent: 5762, independent conditional: 165, independent unconditional: 5597, dependent: 422, dependent conditional: 85, dependent unconditional: 337, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2022, independent: 1945, independent conditional: 21, independent unconditional: 1924, dependent: 77, dependent conditional: 13, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2022, independent: 1793, independent conditional: 0, independent unconditional: 1793, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 229, independent: 152, independent conditional: 21, independent unconditional: 131, dependent: 77, dependent conditional: 13, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 229, independent: 152, independent conditional: 21, independent unconditional: 131, dependent: 77, dependent conditional: 13, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 710, independent: 528, independent conditional: 49, independent unconditional: 479, dependent: 182, dependent conditional: 22, dependent unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 6184, independent: 3817, independent conditional: 144, independent unconditional: 3673, dependent: 345, dependent conditional: 72, dependent unconditional: 273, unknown: 2022, unknown conditional: 34, unknown unconditional: 1988] , Statistics on independence cache: Total cache size (in pairs): 2022, Positive cache size: 1945, Positive conditional cache size: 21, Positive unconditional cache size: 1924, Negative cache size: 77, Negative conditional cache size: 13, Negative unconditional cache size: 64, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 89, Maximal queried relation: 3, Independence queries for same thread: 181 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9479, independent: 9093, independent conditional: 7020, independent unconditional: 2073, dependent: 386, dependent conditional: 327, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9176, independent: 9093, independent conditional: 7020, independent unconditional: 2073, dependent: 83, dependent conditional: 24, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9176, independent: 9093, independent conditional: 7020, independent unconditional: 2073, dependent: 83, dependent conditional: 24, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9505, independent: 9093, independent conditional: 193, independent unconditional: 8900, dependent: 412, dependent conditional: 136, dependent unconditional: 276, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9505, independent: 9093, independent conditional: 193, independent unconditional: 8900, dependent: 412, dependent conditional: 102, dependent unconditional: 310, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9505, independent: 9093, independent conditional: 193, independent unconditional: 8900, dependent: 412, dependent conditional: 102, dependent unconditional: 310, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2180, independent: 2102, independent conditional: 23, independent unconditional: 2079, dependent: 78, dependent conditional: 15, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2180, independent: 1944, independent conditional: 0, independent unconditional: 1944, dependent: 236, dependent conditional: 0, dependent unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 236, independent: 158, independent conditional: 23, independent unconditional: 135, dependent: 78, dependent conditional: 15, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 236, independent: 158, independent conditional: 23, independent unconditional: 135, dependent: 78, dependent conditional: 15, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 456, independent: 347, independent conditional: 44, independent unconditional: 304, dependent: 108, dependent conditional: 19, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 9505, independent: 6991, independent conditional: 170, independent unconditional: 6821, dependent: 334, dependent conditional: 87, dependent unconditional: 247, unknown: 2180, unknown conditional: 38, unknown unconditional: 2142] , Statistics on independence cache: Total cache size (in pairs): 2180, Positive cache size: 2102, Positive conditional cache size: 23, Positive unconditional cache size: 2079, Negative cache size: 78, Negative conditional cache size: 15, Negative unconditional cache size: 63, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 34, Maximal queried relation: 4, Independence queries for same thread: 303 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.5s, Number of persistent set computation: 939, Number of trivial persistent sets: 557, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2132, independent: 2073, independent conditional: 0, independent unconditional: 2073, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9479, independent: 9093, independent conditional: 7020, independent unconditional: 2073, dependent: 386, dependent conditional: 327, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9176, independent: 9093, independent conditional: 7020, independent unconditional: 2073, dependent: 83, dependent conditional: 24, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9176, independent: 9093, independent conditional: 7020, independent unconditional: 2073, dependent: 83, dependent conditional: 24, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9505, independent: 9093, independent conditional: 193, independent unconditional: 8900, dependent: 412, dependent conditional: 136, dependent unconditional: 276, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9505, independent: 9093, independent conditional: 193, independent unconditional: 8900, dependent: 412, dependent conditional: 102, dependent unconditional: 310, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9505, independent: 9093, independent conditional: 193, independent unconditional: 8900, dependent: 412, dependent conditional: 102, dependent unconditional: 310, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2180, independent: 2102, independent conditional: 23, independent unconditional: 2079, dependent: 78, dependent conditional: 15, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2180, independent: 1944, independent conditional: 0, independent unconditional: 1944, dependent: 236, dependent conditional: 0, dependent unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 236, independent: 158, independent conditional: 23, independent unconditional: 135, dependent: 78, dependent conditional: 15, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 236, independent: 158, independent conditional: 23, independent unconditional: 135, dependent: 78, dependent conditional: 15, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 456, independent: 347, independent conditional: 44, independent unconditional: 304, dependent: 108, dependent conditional: 19, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 9505, independent: 6991, independent conditional: 170, independent unconditional: 6821, dependent: 334, dependent conditional: 87, dependent unconditional: 247, unknown: 2180, unknown conditional: 38, unknown unconditional: 2142] , Statistics on independence cache: Total cache size (in pairs): 2180, Positive cache size: 2102, Positive conditional cache size: 23, Positive unconditional cache size: 2079, Negative cache size: 78, Negative conditional cache size: 15, Negative unconditional cache size: 63, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 34, Maximal queried relation: 4, Independence queries for same thread: 303 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 10403, independent: 10031, independent conditional: 8039, independent unconditional: 1992, dependent: 372, dependent conditional: 313, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10105, independent: 10031, independent conditional: 8039, independent unconditional: 1992, dependent: 74, dependent conditional: 15, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10105, independent: 10031, independent conditional: 8039, independent unconditional: 1992, dependent: 74, dependent conditional: 15, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10205, independent: 10031, independent conditional: 6, independent unconditional: 10025, dependent: 174, dependent conditional: 94, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10205, independent: 10031, independent conditional: 6, independent unconditional: 10025, dependent: 174, dependent conditional: 59, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10205, independent: 10031, independent conditional: 6, independent unconditional: 10025, dependent: 174, dependent conditional: 59, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2076, independent: 1998, independent conditional: 2, independent unconditional: 1996, dependent: 78, dependent conditional: 17, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2076, independent: 1851, independent conditional: 0, independent unconditional: 1851, dependent: 225, dependent conditional: 0, dependent unconditional: 225, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 225, independent: 147, independent conditional: 2, independent unconditional: 145, dependent: 78, dependent conditional: 17, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 225, independent: 147, independent conditional: 2, independent unconditional: 145, dependent: 78, dependent conditional: 17, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 359, independent: 250, independent conditional: 3, independent unconditional: 247, dependent: 109, dependent conditional: 21, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 10205, independent: 8033, independent conditional: 4, independent unconditional: 8029, dependent: 96, dependent conditional: 42, dependent unconditional: 54, unknown: 2076, unknown conditional: 19, unknown unconditional: 2057] , Statistics on independence cache: Total cache size (in pairs): 2076, Positive cache size: 1998, Positive conditional cache size: 2, Positive unconditional cache size: 1996, Negative cache size: 78, Negative conditional cache size: 17, Negative unconditional cache size: 61, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 35, Maximal queried relation: 7, Independence queries for same thread: 298 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.4s, Number of persistent set computation: 1339, Number of trivial persistent sets: 1339, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2051, independent: 1992, independent conditional: 0, independent unconditional: 1992, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 10403, independent: 10031, independent conditional: 8039, independent unconditional: 1992, dependent: 372, dependent conditional: 313, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10105, independent: 10031, independent conditional: 8039, independent unconditional: 1992, dependent: 74, dependent conditional: 15, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10105, independent: 10031, independent conditional: 8039, independent unconditional: 1992, dependent: 74, dependent conditional: 15, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10205, independent: 10031, independent conditional: 6, independent unconditional: 10025, dependent: 174, dependent conditional: 94, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10205, independent: 10031, independent conditional: 6, independent unconditional: 10025, dependent: 174, dependent conditional: 59, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10205, independent: 10031, independent conditional: 6, independent unconditional: 10025, dependent: 174, dependent conditional: 59, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2076, independent: 1998, independent conditional: 2, independent unconditional: 1996, dependent: 78, dependent conditional: 17, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2076, independent: 1851, independent conditional: 0, independent unconditional: 1851, dependent: 225, dependent conditional: 0, dependent unconditional: 225, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 225, independent: 147, independent conditional: 2, independent unconditional: 145, dependent: 78, dependent conditional: 17, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 225, independent: 147, independent conditional: 2, independent unconditional: 145, dependent: 78, dependent conditional: 17, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 359, independent: 250, independent conditional: 3, independent unconditional: 247, dependent: 109, dependent conditional: 21, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 10205, independent: 8033, independent conditional: 4, independent unconditional: 8029, dependent: 96, dependent conditional: 42, dependent unconditional: 54, unknown: 2076, unknown conditional: 19, unknown unconditional: 2057] , Statistics on independence cache: Total cache size (in pairs): 2076, Positive cache size: 1998, Positive conditional cache size: 2, Positive unconditional cache size: 1996, Negative cache size: 78, Negative conditional cache size: 17, Negative unconditional cache size: 61, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 35, Maximal queried relation: 7, Independence queries for same thread: 298 - PositiveResult [Line: 710]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 717]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 718]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 719]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 720]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: readerThread1of1ForFork0 with 1 thread instances CFG has 7 procedures, 85 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, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 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, 85 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.5s, 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: 33, 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, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 322 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, 85 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 8, 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: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 177 ConstructedInterpolants, 0 QuantifiedInterpolants, 782 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-08-13 14:55:11,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Ended with exit code 0 [2024-08-13 14:55:11,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Ended with exit code 0 [2024-08-13 14:55:12,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-08-13 14:55:12,247 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