/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.pointer.base.address.is.valid.at.dereference ASSERTandASSUME --cacsl2boogietranslator.pointer.to.allocated.memory.at.dereference ASSERTandASSUME --cacsl2boogietranslator.check.array.bounds.for.arrays.that.are.off.heap ASSERTandASSUME --cacsl2boogietranslator.check.if.freed.pointer.was.valid true --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 04:24:34,134 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 04:24:34,193 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 04:24:34,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 04:24:34,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 04:24:34,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 04:24:34,223 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 04:24:34,223 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 04:24:34,223 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 04:24:34,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 04:24:34,227 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 04:24:34,227 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 04:24:34,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 04:24:34,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 04:24:34,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 04:24:34,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 04:24:34,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 04:24:34,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 04:24:34,229 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 04:24:34,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 04:24:34,229 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 04:24:34,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 04:24:34,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 04:24:34,230 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 04:24:34,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 04:24:34,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:24:34,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 04:24:34,231 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 04:24:34,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 04:24:34,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 04:24:34,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 04:24:34,232 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 04:24:34,232 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 04:24:34,232 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-11-30 04:24:34,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 04:24:34,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 04:24:34,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 04:24:34,408 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 04:24:34,409 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 04:24:34,409 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i [2023-11-30 04:24:35,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 04:24:35,519 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 04:24:35,519 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock-pthread.i [2023-11-30 04:24:35,535 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/747cf2767/294aa0811f894ac5a7b41488a06a91c1/FLAGf85e06e51 [2023-11-30 04:24:35,549 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/747cf2767/294aa0811f894ac5a7b41488a06a91c1 [2023-11-30 04:24:35,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 04:24:35,551 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 04:24:35,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 04:24:35,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 04:24:35,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 04:24:35,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:24:35" (1/1) ... [2023-11-30 04:24:35,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a0a768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:24:35, skipping insertion in model container [2023-11-30 04:24:35,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:24:35" (1/1) ... [2023-11-30 04:24:35,601 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 04:24:35,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:24:35,872 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 04:24:35,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:24:35,940 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 04:24:35,940 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 04:24:35,945 INFO L206 MainTranslator]: Completed translation [2023-11-30 04:24:35,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:24:35 WrapperNode [2023-11-30 04:24:35,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 04:24:35,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 04:24:35,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 04:24:35,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 04:24:35,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:24:35" (1/1) ... [2023-11-30 04:24:35,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:24:35" (1/1) ... [2023-11-30 04:24:35,983 INFO L138 Inliner]: procedures = 166, calls = 37, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2023-11-30 04:24:35,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 04:24:35,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 04:24:35,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 04:24:35,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 04:24:35,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:24:35" (1/1) ... [2023-11-30 04:24:35,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:24:35" (1/1) ... [2023-11-30 04:24:35,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:24:35" (1/1) ... [2023-11-30 04:24:35,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:24:35" (1/1) ... [2023-11-30 04:24:36,004 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:24:35" (1/1) ... [2023-11-30 04:24:36,005 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:24:35" (1/1) ... [2023-11-30 04:24:36,007 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:24:35" (1/1) ... [2023-11-30 04:24:36,008 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:24:35" (1/1) ... [2023-11-30 04:24:36,009 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 04:24:36,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 04:24:36,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 04:24:36,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 04:24:36,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:24:35" (1/1) ... [2023-11-30 04:24:36,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:24:36,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 04:24:36,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 04:24:36,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 04:24:36,057 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2023-11-30 04:24:36,057 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-30 04:24:36,057 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-30 04:24:36,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 04:24:36,057 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2023-11-30 04:24:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 04:24:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 04:24:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 04:24:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2023-11-30 04:24:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 04:24:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 04:24:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 04:24:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 04:24:36,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 04:24:36,059 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 04:24:36,157 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 04:24:36,159 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 04:24:36,278 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 04:24:36,294 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 04:24:36,294 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 04:24:36,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:24:36 BoogieIcfgContainer [2023-11-30 04:24:36,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 04:24:36,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 04:24:36,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 04:24:36,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 04:24:36,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 04:24:35" (1/3) ... [2023-11-30 04:24:36,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4589f49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:24:36, skipping insertion in model container [2023-11-30 04:24:36,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:24:35" (2/3) ... [2023-11-30 04:24:36,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4589f49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:24:36, skipping insertion in model container [2023-11-30 04:24:36,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:24:36" (3/3) ... [2023-11-30 04:24:36,300 INFO L112 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock-pthread.i [2023-11-30 04:24:36,311 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 04:24:36,311 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-30 04:24:36,312 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 04:24:36,339 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 04:24:36,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 73 transitions, 150 flow [2023-11-30 04:24:36,386 INFO L124 PetriNetUnfolderBase]: 2/72 cut-off events. [2023-11-30 04:24:36,386 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:24:36,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2023-11-30 04:24:36,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 73 transitions, 150 flow [2023-11-30 04:24:36,391 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 28 transitions, 56 flow [2023-11-30 04:24:36,396 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 04:24:36,401 INFO L362 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=true, mAutomataTypeConcurrency=PETRI_NET, 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;@2dd644fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 04:24:36,401 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-30 04:24:36,423 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 04:24:36,424 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2023-11-30 04:24:36,424 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:24:36,424 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:24:36,424 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:24:36,425 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-30 04:24:36,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:24:36,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1267255046, now seen corresponding path program 1 times [2023-11-30 04:24:36,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:24:36,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397301358] [2023-11-30 04:24:36,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:24:36,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:24:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:24:36,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:24:36,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:24:36,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397301358] [2023-11-30 04:24:36,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397301358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:24:36,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:24:36,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:24:36,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442696549] [2023-11-30 04:24:36,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:24:36,652 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:24:36,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:24:36,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:24:36,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:24:36,670 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 73 [2023-11-30 04:24:36,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 28 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2023-11-30 04:24:36,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:24:36,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 73 [2023-11-30 04:24:36,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:24:36,689 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2023-11-30 04:24:36,689 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:24:36,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 27 events. 0/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-11-30 04:24:36,690 INFO L140 encePairwiseOnDemand]: 71/73 looper letters, 6 selfloop transitions, 1 changer transitions 0/27 dead transitions. [2023-11-30 04:24:36,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 68 flow [2023-11-30 04:24:36,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:24:36,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:24:36,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 167 transitions. [2023-11-30 04:24:36,702 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7625570776255708 [2023-11-30 04:24:36,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 167 transitions. [2023-11-30 04:24:36,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 167 transitions. [2023-11-30 04:24:36,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:24:36,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 167 transitions. [2023-11-30 04:24:36,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2023-11-30 04:24:36,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2023-11-30 04:24:36,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2023-11-30 04:24:36,711 INFO L307 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2023-11-30 04:24:36,712 INFO L500 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 68 flow [2023-11-30 04:24:36,712 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2023-11-30 04:24:36,712 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:24:36,712 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:24:36,712 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 04:24:36,712 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-30 04:24:36,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:24:36,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1267255047, now seen corresponding path program 1 times [2023-11-30 04:24:36,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:24:36,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491429166] [2023-11-30 04:24:36,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:24:36,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:24:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:24:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:24:36,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:24:36,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491429166] [2023-11-30 04:24:36,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491429166] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:24:36,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:24:36,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:24:36,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381859858] [2023-11-30 04:24:36,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:24:36,844 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:24:36,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:24:36,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:24:36,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:24:36,845 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 73 [2023-11-30 04:24:36,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2023-11-30 04:24:36,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:24:36,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 73 [2023-11-30 04:24:36,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:24:36,861 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2023-11-30 04:24:36,861 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-30 04:24:36,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 26 events. 0/26 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/27 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-11-30 04:24:36,862 INFO L140 encePairwiseOnDemand]: 71/73 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2023-11-30 04:24:36,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 74 flow [2023-11-30 04:24:36,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:24:36,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:24:36,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2023-11-30 04:24:36,866 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7671232876712328 [2023-11-30 04:24:36,866 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 168 transitions. [2023-11-30 04:24:36,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 168 transitions. [2023-11-30 04:24:36,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:24:36,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 168 transitions. [2023-11-30 04:24:36,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2023-11-30 04:24:36,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2023-11-30 04:24:36,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2023-11-30 04:24:36,869 INFO L307 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2023-11-30 04:24:36,869 INFO L500 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 74 flow [2023-11-30 04:24:36,869 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2023-11-30 04:24:36,873 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/18_read_write_lock-pthread.i_BEv2_AllErrorsAtOnce [2023-11-30 04:24:36,887 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 3 remaining) [2023-11-30 04:24:36,887 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2023-11-30 04:24:36,887 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-30 04:24:36,888 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 04:24:36,888 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-30 04:24:36,890 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 04:24:36,890 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 04:24:36,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 04:24:36 BasicIcfg [2023-11-30 04:24:36,894 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 04:24:36,895 INFO L158 Benchmark]: Toolchain (without parser) took 1343.23ms. Allocated memory is still 559.9MB. Free memory was 516.0MB in the beginning and 484.5MB in the end (delta: 31.4MB). Peak memory consumption was 34.0MB. Max. memory is 16.0GB. [2023-11-30 04:24:36,895 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 381.7MB. Free memory was 333.7MB in the beginning and 333.5MB in the end (delta: 188.9kB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 04:24:36,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.65ms. Allocated memory is still 559.9MB. Free memory was 516.0MB in the beginning and 496.0MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-11-30 04:24:36,896 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.15ms. Allocated memory is still 559.9MB. Free memory was 496.0MB in the beginning and 494.0MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-30 04:24:36,896 INFO L158 Benchmark]: Boogie Preprocessor took 25.93ms. Allocated memory is still 559.9MB. Free memory was 494.0MB in the beginning and 492.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 04:24:36,896 INFO L158 Benchmark]: RCFGBuilder took 285.09ms. Allocated memory is still 559.9MB. Free memory was 492.6MB in the beginning and 477.6MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-11-30 04:24:36,896 INFO L158 Benchmark]: TraceAbstraction took 597.50ms. Allocated memory is still 559.9MB. Free memory was 476.9MB in the beginning and 484.5MB in the end (delta: -7.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 04:24:36,898 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 381.7MB. Free memory was 333.7MB in the beginning and 333.5MB in the end (delta: 188.9kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 392.65ms. Allocated memory is still 559.9MB. Free memory was 516.0MB in the beginning and 496.0MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.15ms. Allocated memory is still 559.9MB. Free memory was 496.0MB in the beginning and 494.0MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.93ms. Allocated memory is still 559.9MB. Free memory was 494.0MB in the beginning and 492.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 285.09ms. Allocated memory is still 559.9MB. Free memory was 492.6MB in the beginning and 477.6MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 597.50ms. Allocated memory is still 559.9MB. Free memory was 476.9MB in the beginning and 484.5MB in the end (delta: -7.6MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 82 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 0.2s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 88 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 04:24:36,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...