./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/protection-local/18_read_write_lock-pthread.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e94c40da Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i ./goblint.2024-09-02_08-21-23.files/protection-local/18_read_write_lock-pthread.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-e94c40d-m [2024-09-24 08:15:17,281 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-24 08:15:17,335 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-24 08:15:17,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-24 08:15:17,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-24 08:15:17,364 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-24 08:15:17,365 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-24 08:15:17,365 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-24 08:15:17,366 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-24 08:15:17,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-24 08:15:17,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-24 08:15:17,369 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-24 08:15:17,369 INFO L153 SettingsManager]: * Use SBE=true [2024-09-24 08:15:17,369 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-24 08:15:17,369 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-24 08:15:17,370 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-24 08:15:17,370 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-24 08:15:17,370 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-24 08:15:17,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-24 08:15:17,370 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-24 08:15:17,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-24 08:15:17,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-24 08:15:17,372 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-24 08:15:17,372 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-24 08:15:17,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-24 08:15:17,373 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-24 08:15:17,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-24 08:15:17,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-24 08:15:17,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-24 08:15:17,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-24 08:15:17,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-24 08:15:17,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-24 08:15:17,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-24 08:15:17,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-24 08:15:17,374 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-24 08:15:17,374 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-24 08:15:17,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-24 08:15:17,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-24 08:15:17,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-24 08:15:17,375 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-24 08:15:17,375 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-24 08:15:17,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-24 08:15:17,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-24 08:15:17,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-24 08:15:17,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-24 08:15:17,596 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-24 08:15:17,596 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-24 08:15:17,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-local/18_read_write_lock-pthread.yml/witness.yml [2024-09-24 08:15:17,677 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-24 08:15:17,678 INFO L274 PluginConnector]: CDTParser initialized [2024-09-24 08:15:17,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i [2024-09-24 08:15:18,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-24 08:15:19,138 INFO L384 CDTParser]: Found 1 translation units. [2024-09-24 08:15:19,139 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i [2024-09-24 08:15:19,152 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b90b061fe/af205549db464772b9cb6528d4709518/FLAG6c6c3f2fd [2024-09-24 08:15:19,168 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b90b061fe/af205549db464772b9cb6528d4709518 [2024-09-24 08:15:19,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-24 08:15:19,171 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-24 08:15:19,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-24 08:15:19,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-24 08:15:19,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-24 08:15:19,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 08:15:17" (1/2) ... [2024-09-24 08:15:19,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f6d61a0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 08:15:19, skipping insertion in model container [2024-09-24 08:15:19,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 08:15:17" (1/2) ... [2024-09-24 08:15:19,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@70b36f68 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 08:15:19, skipping insertion in model container [2024-09-24 08:15:19,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:15:19" (2/2) ... [2024-09-24 08:15:19,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f6d61a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:15:19, skipping insertion in model container [2024-09-24 08:15:19,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:15:19" (2/2) ... [2024-09-24 08:15:19,201 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-24 08:15:19,201 INFO L1541 ArrayList]: Location invariant before [L701-L701] y == 0 || y == 3 [2024-09-24 08:15:19,201 INFO L1541 ArrayList]: Location invariant before [L704-L704] y == 0 || y == 3 [2024-09-24 08:15:19,201 INFO L1541 ArrayList]: Location invariant before [L707-L707] y == 0 || y == 3 [2024-09-24 08:15:19,202 INFO L1541 ArrayList]: Location invariant before [L691-L691] x == 0 || x == 3 [2024-09-24 08:15:19,202 INFO L1541 ArrayList]: Location invariant before [L698-L698] y == 0 || y == 3 [2024-09-24 08:15:19,237 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-24 08:15:19,521 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i[30915,30928] [2024-09-24 08:15:19,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-24 08:15:19,546 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-24 08:15:19,603 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i[30915,30928] [2024-09-24 08:15:19,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-24 08:15:19,629 INFO L204 MainTranslator]: Completed translation [2024-09-24 08:15:19,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:15:19 WrapperNode [2024-09-24 08:15:19,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-24 08:15:19,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-24 08:15:19,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-24 08:15:19,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-24 08:15:19,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:15:19" (1/1) ... [2024-09-24 08:15:19,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:15:19" (1/1) ... [2024-09-24 08:15:19,673 INFO L138 Inliner]: procedures = 165, calls = 32, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2024-09-24 08:15:19,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-24 08:15:19,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-24 08:15:19,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-24 08:15:19,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-24 08:15:19,681 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:15:19" (1/1) ... [2024-09-24 08:15:19,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:15:19" (1/1) ... [2024-09-24 08:15:19,687 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:15:19" (1/1) ... [2024-09-24 08:15:19,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:15:19" (1/1) ... [2024-09-24 08:15:19,693 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:15:19" (1/1) ... [2024-09-24 08:15:19,694 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:15:19" (1/1) ... [2024-09-24 08:15:19,695 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:15:19" (1/1) ... [2024-09-24 08:15:19,696 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:15:19" (1/1) ... [2024-09-24 08:15:19,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-24 08:15:19,705 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-24 08:15:19,705 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-24 08:15:19,705 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-24 08:15:19,705 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:15:19" (1/1) ... [2024-09-24 08:15:19,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-24 08:15:19,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 08:15:19,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-24 08:15:19,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-24 08:15:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2024-09-24 08:15:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-09-24 08:15:19,775 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-09-24 08:15:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2024-09-24 08:15:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-24 08:15:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-24 08:15:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2024-09-24 08:15:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-24 08:15:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-24 08:15:19,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-24 08:15:19,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-24 08:15:19,778 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-24 08:15:19,898 INFO L242 CfgBuilder]: Building ICFG [2024-09-24 08:15:19,900 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-24 08:15:20,028 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-24 08:15:20,029 INFO L291 CfgBuilder]: Performing block encoding [2024-09-24 08:15:20,144 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-24 08:15:20,144 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-24 08:15:20,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:15:20 BoogieIcfgContainer [2024-09-24 08:15:20,144 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-24 08:15:20,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-24 08:15:20,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-24 08:15:20,149 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-24 08:15:20,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 08:15:17" (1/4) ... [2024-09-24 08:15:20,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e3600c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 24.09 08:15:20, skipping insertion in model container [2024-09-24 08:15:20,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:15:19" (2/4) ... [2024-09-24 08:15:20,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e3600c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:15:20, skipping insertion in model container [2024-09-24 08:15:20,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:15:19" (3/4) ... [2024-09-24 08:15:20,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e3600c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:15:20, skipping insertion in model container [2024-09-24 08:15:20,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:15:20" (4/4) ... [2024-09-24 08:15:20,153 INFO L112 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock-pthread.i [2024-09-24 08:15:20,170 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-24 08:15:20,170 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-09-24 08:15:20,170 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-24 08:15:20,194 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-09-24 08:15:20,224 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 08:15:20,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 08:15:20,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 08:15:20,226 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 08:15:20,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-24 08:15:20,249 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 08:15:20,260 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2024-09-24 08:15:20,267 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6c8c0718, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 08:15:20,267 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-24 08:15:20,314 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 08:15:20,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 08:15:20,318 INFO L85 PathProgramCache]: Analyzing trace with hash -2011231729, now seen corresponding path program 1 times [2024-09-24 08:15:20,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 08:15:20,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194509604] [2024-09-24 08:15:20,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 08:15:20,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 08:15:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 08:15:20,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 08:15:20,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 08:15:20,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194509604] [2024-09-24 08:15:20,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194509604] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 08:15:20,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 08:15:20,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-24 08:15:20,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350010800] [2024-09-24 08:15:20,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 08:15:20,492 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 08:15:20,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 08:15:20,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 08:15:20,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 08:15:20,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 08:15:20,514 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 08:15:20,514 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 08:15:20,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 08:15:20,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:20,572 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 1 remaining) [2024-09-24 08:15:20,573 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-24 08:15:20,580 INFO L408 BasicCegarLoop]: Path program histogram: [1] [2024-09-24 08:15:20,582 INFO L312 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2024-09-24 08:15:20,585 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 08:15:20,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 08:15:20,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 08:15:20,600 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 08:15:20,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-09-24 08:15:20,604 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 08:15:20,604 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-24 08:15:20,605 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6c8c0718, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 08:15:20,605 INFO L337 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-09-24 08:15:20,633 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-24 08:15:20,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 08:15:20,633 INFO L85 PathProgramCache]: Analyzing trace with hash -290653027, now seen corresponding path program 1 times [2024-09-24 08:15:20,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 08:15:20,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183724509] [2024-09-24 08:15:20,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 08:15:20,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 08:15:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 08:15:20,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 08:15:20,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 08:15:20,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183724509] [2024-09-24 08:15:20,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183724509] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 08:15:20,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 08:15:20,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 08:15:20,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880045717] [2024-09-24 08:15:20,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 08:15:20,709 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 08:15:20,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 08:15:20,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 08:15:20,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 08:15:20,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 08:15:20,712 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 08:15:20,713 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 08:15:20,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 08:15:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:20,760 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-24 08:15:20,760 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-24 08:15:20,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 08:15:20,761 INFO L85 PathProgramCache]: Analyzing trace with hash -417398425, now seen corresponding path program 1 times [2024-09-24 08:15:20,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 08:15:20,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518055237] [2024-09-24 08:15:20,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 08:15:20,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 08:15:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 08:15:20,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 08:15:20,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 08:15:20,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518055237] [2024-09-24 08:15:20,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518055237] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 08:15:20,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 08:15:20,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-24 08:15:20,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113573148] [2024-09-24 08:15:20,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 08:15:20,835 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 08:15:20,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 08:15:20,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 08:15:20,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 08:15:20,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 08:15:20,838 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 08:15:20,838 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 08:15:20,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:20,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 08:15:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:20,867 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-24 08:15:20,867 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-24 08:15:20,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 08:15:20,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1687921229, now seen corresponding path program 1 times [2024-09-24 08:15:20,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 08:15:20,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912473685] [2024-09-24 08:15:20,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 08:15:20,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 08:15:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 08:15:20,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 08:15:20,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 08:15:20,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912473685] [2024-09-24 08:15:20,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912473685] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 08:15:20,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 08:15:20,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 08:15:20,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780809655] [2024-09-24 08:15:20,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 08:15:20,972 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 08:15:20,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 08:15:20,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 08:15:20,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 08:15:20,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 08:15:20,973 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 08:15:20,973 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 08:15:20,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:20,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:20,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 08:15:21,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,021 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-24 08:15:21,021 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-24 08:15:21,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 08:15:21,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1696528048, now seen corresponding path program 1 times [2024-09-24 08:15:21,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 08:15:21,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228521188] [2024-09-24 08:15:21,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 08:15:21,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 08:15:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 08:15:21,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 08:15:21,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 08:15:21,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228521188] [2024-09-24 08:15:21,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228521188] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 08:15:21,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 08:15:21,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 08:15:21,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561282521] [2024-09-24 08:15:21,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 08:15:21,073 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 08:15:21,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 08:15:21,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 08:15:21,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-24 08:15:21,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 08:15:21,075 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 08:15:21,076 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 08:15:21,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 08:15:21,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 08:15:21,131 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-24 08:15:21,131 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-24 08:15:21,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 08:15:21,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1907859585, now seen corresponding path program 1 times [2024-09-24 08:15:21,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 08:15:21,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632799000] [2024-09-24 08:15:21,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 08:15:21,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 08:15:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 08:15:21,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 08:15:21,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 08:15:21,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632799000] [2024-09-24 08:15:21,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632799000] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 08:15:21,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 08:15:21,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-24 08:15:21,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894374781] [2024-09-24 08:15:21,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 08:15:21,186 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-24 08:15:21,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 08:15:21,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-24 08:15:21,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-24 08:15:21,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 08:15:21,187 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 08:15:21,187 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 08:15:21,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 08:15:21,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 08:15:21,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 08:15:21,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 08:15:21,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 08:15:21,269 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-09-24 08:15:21,269 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-09-24 08:15:21,269 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-09-24 08:15:21,269 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 6 remaining) [2024-09-24 08:15:21,269 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-09-24 08:15:21,270 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-09-24 08:15:21,270 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-24 08:15:21,271 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-09-24 08:15:21,271 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (2/2) [2024-09-24 08:15:21,271 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-24 08:15:21,271 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-24 08:15:21,275 INFO L469 ceAbstractionStarter]: Automizer considered 5 witness invariants [2024-09-24 08:15:21,275 INFO L470 ceAbstractionStarter]: WitnessConsidered=5 [2024-09-24 08:15:21,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:15:21 BasicIcfg [2024-09-24 08:15:21,276 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-24 08:15:21,276 INFO L158 Benchmark]: Toolchain (without parser) took 2105.93ms. Allocated memory is still 165.7MB. Free memory was 92.3MB in the beginning and 78.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-09-24 08:15:21,277 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-24 08:15:21,277 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 165.7MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-24 08:15:21,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.63ms. Allocated memory is still 165.7MB. Free memory was 92.2MB in the beginning and 122.2MB in the end (delta: -30.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2024-09-24 08:15:21,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.74ms. Allocated memory is still 165.7MB. Free memory was 122.2MB in the beginning and 120.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-24 08:15:21,278 INFO L158 Benchmark]: Boogie Preprocessor took 30.15ms. Allocated memory is still 165.7MB. Free memory was 120.0MB in the beginning and 118.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-24 08:15:21,278 INFO L158 Benchmark]: RCFGBuilder took 439.95ms. Allocated memory is still 165.7MB. Free memory was 118.8MB in the beginning and 90.7MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-09-24 08:15:21,278 INFO L158 Benchmark]: TraceAbstraction took 1130.43ms. Allocated memory is still 165.7MB. Free memory was 90.3MB in the beginning and 78.3MB in the end (delta: 12.0MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-09-24 08:15:21,279 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 0.16ms. Allocated memory is still 165.7MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 165.7MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.63ms. Allocated memory is still 165.7MB. Free memory was 92.2MB in the beginning and 122.2MB in the end (delta: -30.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.74ms. Allocated memory is still 165.7MB. Free memory was 122.2MB in the beginning and 120.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.15ms. Allocated memory is still 165.7MB. Free memory was 120.0MB in the beginning and 118.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.95ms. Allocated memory is still 165.7MB. Free memory was 118.8MB in the beginning and 90.7MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1130.43ms. Allocated memory is still 165.7MB. Free memory was 90.3MB in the beginning and 78.3MB in the end (delta: 12.0MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 226, independent: 216, independent conditional: 24, independent unconditional: 192, dependent: 10, dependent conditional: 6, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 221, independent: 216, independent conditional: 24, independent unconditional: 192, dependent: 5, dependent conditional: 1, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 221, independent: 216, independent conditional: 24, independent unconditional: 192, dependent: 5, dependent conditional: 1, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 222, independent: 216, independent conditional: 24, independent unconditional: 192, dependent: 6, dependent conditional: 2, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 222, independent: 216, independent conditional: 0, independent unconditional: 216, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 222, independent: 216, independent conditional: 0, independent unconditional: 216, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 196, independent: 192, independent conditional: 0, independent unconditional: 192, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 196, independent: 189, independent conditional: 0, independent unconditional: 189, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 7, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 222, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 196, unknown conditional: 0, unknown unconditional: 196] , Statistics on independence cache: Total cache size (in pairs): 196, Positive cache size: 192, Positive conditional cache size: 0, Positive unconditional cache size: 192, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 26, Maximal queried relation: 1, Independence queries for same thread: 5, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 23, Number of trivial persistent sets: 17, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 196, independent: 192, independent conditional: 0, independent unconditional: 192, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 226, independent: 216, independent conditional: 24, independent unconditional: 192, dependent: 10, dependent conditional: 6, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 221, independent: 216, independent conditional: 24, independent unconditional: 192, dependent: 5, dependent conditional: 1, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 221, independent: 216, independent conditional: 24, independent unconditional: 192, dependent: 5, dependent conditional: 1, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 222, independent: 216, independent conditional: 24, independent unconditional: 192, dependent: 6, dependent conditional: 2, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 222, independent: 216, independent conditional: 0, independent unconditional: 216, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 222, independent: 216, independent conditional: 0, independent unconditional: 216, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 196, independent: 192, independent conditional: 0, independent unconditional: 192, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 196, independent: 189, independent conditional: 0, independent unconditional: 189, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 7, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 222, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 196, unknown conditional: 0, unknown unconditional: 196] , Statistics on independence cache: Total cache size (in pairs): 196, Positive cache size: 192, Positive conditional cache size: 0, Positive unconditional cache size: 192, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 26, Maximal queried relation: 1, Independence queries for same thread: 5 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 326, independent: 295, independent conditional: 68, independent unconditional: 227, dependent: 31, dependent conditional: 26, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 300, independent: 295, independent conditional: 68, independent unconditional: 227, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 300, independent: 295, independent conditional: 68, independent unconditional: 227, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 300, independent: 295, independent conditional: 68, independent unconditional: 227, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 300, independent: 295, independent conditional: 0, independent unconditional: 295, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 300, independent: 295, independent conditional: 0, independent unconditional: 295, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 232, independent: 227, independent conditional: 0, independent unconditional: 227, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 232, independent: 224, independent conditional: 0, independent unconditional: 224, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 8, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 300, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 232, unknown conditional: 0, unknown unconditional: 232] , Statistics on independence cache: Total cache size (in pairs): 232, Positive cache size: 227, Positive conditional cache size: 0, Positive unconditional cache size: 227, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 68, Maximal queried relation: 0, Independence queries for same thread: 26, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 38, Number of trivial persistent sets: 38, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 232, independent: 227, independent conditional: 0, independent unconditional: 227, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 326, independent: 295, independent conditional: 68, independent unconditional: 227, dependent: 31, dependent conditional: 26, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 300, independent: 295, independent conditional: 68, independent unconditional: 227, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 300, independent: 295, independent conditional: 68, independent unconditional: 227, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 300, independent: 295, independent conditional: 68, independent unconditional: 227, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 300, independent: 295, independent conditional: 0, independent unconditional: 295, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 300, independent: 295, independent conditional: 0, independent unconditional: 295, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 232, independent: 227, independent conditional: 0, independent unconditional: 227, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 232, independent: 224, independent conditional: 0, independent unconditional: 224, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 8, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 300, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 232, unknown conditional: 0, unknown unconditional: 232] , Statistics on independence cache: Total cache size (in pairs): 232, Positive cache size: 227, Positive conditional cache size: 0, Positive unconditional cache size: 227, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 68, Maximal queried relation: 0, Independence queries for same thread: 26 - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 704]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 707]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 709]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 38 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 3 procedures, 38 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-24 08:15:21,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Ended with exit code 0 [2024-09-24 08:15:21,506 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 [2024-09-24 08:15:21,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE