/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistent.epf --traceabstraction.dfs.order.used.in.por PSEUDO_LOCKSTEP --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 12:58:13,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 12:58:13,754 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistent.epf [2023-11-17 12:58:13,757 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-17 12:58:13,757 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-17 12:58:13,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 12:58:13,771 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-17 12:58:13,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-17 12:58:13,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 12:58:13,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 12:58:13,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 12:58:13,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 12:58:13,774 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 12:58:13,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 12:58:13,774 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 12:58:13,774 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 12:58:13,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 12:58:13,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 12:58:13,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 12:58:13,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 12:58:13,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 12:58:13,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 12:58:13,779 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 12:58:13,779 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 12:58:13,779 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 12:58:13,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 12:58:13,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 12:58:13,780 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 12:58:13,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 12:58:13,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 12:58:13,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 12:58:13,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 12:58:13,782 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 12:58:13,782 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 12:58:13,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 12:58:13,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-17 12:58:13,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-17 12:58:13,783 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-17 12:58:13,783 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-17 12:58:13,783 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2023-11-17 12:58:13,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> PSEUDO_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 12:58:13,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 12:58:13,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 12:58:13,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 12:58:13,938 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 12:58:13,938 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 12:58:13,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2023-11-17 12:58:14,775 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 12:58:14,964 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 12:58:14,964 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2023-11-17 12:58:14,984 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95eb3a699/fc0d0420148f402f817b4eeb7f85657c/FLAG2e9d024aa [2023-11-17 12:58:15,362 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95eb3a699/fc0d0420148f402f817b4eeb7f85657c [2023-11-17 12:58:15,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 12:58:15,365 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 12:58:15,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 12:58:15,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 12:58:15,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 12:58:15,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:58:15" (1/1) ... [2023-11-17 12:58:15,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c8529e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:58:15, skipping insertion in model container [2023-11-17 12:58:15,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:58:15" (1/1) ... [2023-11-17 12:58:15,393 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 12:58:15,532 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-17 12:58:15,631 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2023-11-17 12:58:15,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 12:58:15,651 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 12:58:15,670 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-17 12:58:15,688 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2023-11-17 12:58:15,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 12:58:15,720 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 12:58:15,720 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 12:58:15,720 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 12:58:15,725 INFO L206 MainTranslator]: Completed translation [2023-11-17 12:58:15,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:58:15 WrapperNode [2023-11-17 12:58:15,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 12:58:15,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 12:58:15,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 12:58:15,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 12:58:15,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:58:15" (1/1) ... [2023-11-17 12:58:15,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:58:15" (1/1) ... [2023-11-17 12:58:15,765 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 113 [2023-11-17 12:58:15,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 12:58:15,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 12:58:15,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 12:58:15,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 12:58:15,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:58:15" (1/1) ... [2023-11-17 12:58:15,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:58:15" (1/1) ... [2023-11-17 12:58:15,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:58:15" (1/1) ... [2023-11-17 12:58:15,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:58:15" (1/1) ... [2023-11-17 12:58:15,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:58:15" (1/1) ... [2023-11-17 12:58:15,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:58:15" (1/1) ... [2023-11-17 12:58:15,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:58:15" (1/1) ... [2023-11-17 12:58:15,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:58:15" (1/1) ... [2023-11-17 12:58:15,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 12:58:15,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 12:58:15,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 12:58:15,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 12:58:15,784 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:58:15" (1/1) ... [2023-11-17 12:58:15,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 12:58:15,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 12:58:15,810 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) [2023-11-17 12:58:15,816 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 [2023-11-17 12:58:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 12:58:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 12:58:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 12:58:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 12:58:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2023-11-17 12:58:15,842 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2023-11-17 12:58:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 12:58:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 12:58:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 12:58:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 12:58:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 12:58:15,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 12:58:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2023-11-17 12:58:15,842 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2023-11-17 12:58:15,844 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 12:58:15,973 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 12:58:15,974 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 12:58:16,160 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 12:58:16,231 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 12:58:16,231 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 12:58:16,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 12:58:16 BoogieIcfgContainer [2023-11-17 12:58:16,232 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 12:58:16,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 12:58:16,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 12:58:16,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 12:58:16,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 12:58:15" (1/3) ... [2023-11-17 12:58:16,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e36cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:58:16, skipping insertion in model container [2023-11-17 12:58:16,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:58:15" (2/3) ... [2023-11-17 12:58:16,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e36cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:58:16, skipping insertion in model container [2023-11-17 12:58:16,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 12:58:16" (3/3) ... [2023-11-17 12:58:16,237 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2023-11-17 12:58:16,242 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-17 12:58:16,248 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 12:58:16,248 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 12:58:16,248 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 12:58:16,300 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-17 12:58:16,336 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 12:58:16,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 12:58:16,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 12:58:16,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 12:58:16,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-17 12:58:16,390 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 12:58:16,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of1ForFork2 ======== [2023-11-17 12:58:16,401 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7dad76e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 12:58:16,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-17 12:58:16,615 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 12:58:16,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 12:58:16,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1968746941, now seen corresponding path program 1 times [2023-11-17 12:58:16,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 12:58:16,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886438011] [2023-11-17 12:58:16,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 12:58:16,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 12:58:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 12:58:16,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 12:58:16,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 12:58:16,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886438011] [2023-11-17 12:58:16,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886438011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 12:58:16,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 12:58:16,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 12:58:16,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302300378] [2023-11-17 12:58:16,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 12:58:16,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 12:58:16,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 12:58:16,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 12:58:16,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 12:58:16,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:16,982 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 12:58:16,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 12:58:16,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:17,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:17,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 12:58:17,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 12:58:17,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 12:58:17,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1435972390, now seen corresponding path program 1 times [2023-11-17 12:58:17,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 12:58:17,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642118080] [2023-11-17 12:58:17,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 12:58:17,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 12:58:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 12:58:17,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 12:58:17,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 12:58:17,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642118080] [2023-11-17 12:58:17,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642118080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 12:58:17,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 12:58:17,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 12:58:17,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029370066] [2023-11-17 12:58:17,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 12:58:17,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 12:58:17,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 12:58:17,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 12:58:17,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-17 12:58:17,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:17,120 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 12:58:17,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 12:58:17,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:17,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:17,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:17,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 12:58:17,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 12:58:17,262 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 12:58:17,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 12:58:17,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1128070632, now seen corresponding path program 1 times [2023-11-17 12:58:17,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 12:58:17,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421549384] [2023-11-17 12:58:17,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 12:58:17,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 12:58:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 12:58:17,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 12:58:17,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 12:58:17,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421549384] [2023-11-17 12:58:17,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421549384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 12:58:17,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 12:58:17,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 12:58:17,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831977032] [2023-11-17 12:58:17,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 12:58:17,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 12:58:17,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 12:58:17,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 12:58:17,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 12:58:17,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:17,311 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 12:58:17,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-11-17 12:58:17,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:17,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 12:58:17,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:17,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:17,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 12:58:17,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 12:58:17,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 12:58:17,343 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 12:58:17,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 12:58:17,343 INFO L85 PathProgramCache]: Analyzing trace with hash 231088001, now seen corresponding path program 1 times [2023-11-17 12:58:17,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 12:58:17,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722335186] [2023-11-17 12:58:17,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 12:58:17,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 12:58:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 12:58:17,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 12:58:17,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 12:58:17,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722335186] [2023-11-17 12:58:17,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722335186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 12:58:17,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 12:58:17,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 12:58:17,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298927895] [2023-11-17 12:58:17,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 12:58:17,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 12:58:17,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 12:58:17,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 12:58:17,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-17 12:58:17,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:17,444 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 12:58:17,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 12:58:17,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:17,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 12:58:17,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 12:58:17,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:17,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:17,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 12:58:17,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 12:58:17,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 12:58:17,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 12:58:17,494 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 12:58:17,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 12:58:17,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1445803420, now seen corresponding path program 2 times [2023-11-17 12:58:17,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 12:58:17,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866886219] [2023-11-17 12:58:17,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 12:58:17,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 12:58:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 12:58:17,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 12:58:17,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 12:58:17,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866886219] [2023-11-17 12:58:17,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866886219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 12:58:17,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 12:58:17,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 12:58:17,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475943113] [2023-11-17 12:58:17,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 12:58:17,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 12:58:17,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 12:58:17,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 12:58:17,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-17 12:58:17,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:17,565 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 12:58:17,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 12:58:17,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:17,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 12:58:17,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 12:58:17,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 12:58:17,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 12:58:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 12:58:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 12:58:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 12:58:17,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-17 12:58:17,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 12:58:17,953 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-11-17 12:58:17,954 INFO L307 ceAbstractionStarter]: Result for error location readerThread1of1ForFork2 was SAFE (1/3) [2023-11-17 12:58:17,957 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 12:58:17,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 12:58:17,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 12:58:18,002 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 12:58:18,009 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 12:58:18,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of1ForFork3 ======== [2023-11-17 12:58:18,010 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7dad76e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 12:58:18,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-17 12:58:18,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2023-11-17 12:58:18,080 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 12:58:18,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 12:58:18,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2099324746, now seen corresponding path program 1 times [2023-11-17 12:58:18,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 12:58:18,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983613815] [2023-11-17 12:58:18,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 12:58:18,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 12:58:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 12:58:18,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 12:58:18,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 12:58:18,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983613815] [2023-11-17 12:58:18,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983613815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 12:58:18,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 12:58:18,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 12:58:18,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907433393] [2023-11-17 12:58:18,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 12:58:18,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 12:58:18,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 12:58:18,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 12:58:18,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 12:58:18,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:18,148 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 12:58:18,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 12:58:18,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:18,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:18,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 12:58:18,174 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 12:58:18,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 12:58:18,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1048293743, now seen corresponding path program 1 times [2023-11-17 12:58:18,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 12:58:18,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324027656] [2023-11-17 12:58:18,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 12:58:18,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 12:58:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 12:58:18,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 12:58:18,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 12:58:18,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324027656] [2023-11-17 12:58:18,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324027656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 12:58:18,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 12:58:18,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 12:58:18,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109169431] [2023-11-17 12:58:18,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 12:58:18,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 12:58:18,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 12:58:18,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 12:58:18,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-17 12:58:18,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:18,217 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 12:58:18,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 12:58:18,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:18,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:18,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:18,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 12:58:18,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-17 12:58:18,325 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 12:58:18,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 12:58:18,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1812022050, now seen corresponding path program 1 times [2023-11-17 12:58:18,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 12:58:18,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720702249] [2023-11-17 12:58:18,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 12:58:18,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 12:58:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 12:58:18,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 12:58:18,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 12:58:18,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720702249] [2023-11-17 12:58:18,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720702249] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 12:58:18,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 12:58:18,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 12:58:18,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679470901] [2023-11-17 12:58:18,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 12:58:18,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 12:58:18,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 12:58:18,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 12:58:18,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 12:58:18,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:18,376 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 12:58:18,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-11-17 12:58:18,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:18,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 12:58:18,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:18,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:18,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 12:58:18,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 12:58:18,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-17 12:58:18,409 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 12:58:18,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 12:58:18,409 INFO L85 PathProgramCache]: Analyzing trace with hash -909973493, now seen corresponding path program 1 times [2023-11-17 12:58:18,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 12:58:18,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166183090] [2023-11-17 12:58:18,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 12:58:18,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 12:58:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 12:58:18,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 12:58:18,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 12:58:18,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166183090] [2023-11-17 12:58:18,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166183090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 12:58:18,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 12:58:18,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 12:58:18,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335770557] [2023-11-17 12:58:18,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 12:58:18,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 12:58:18,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 12:58:18,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 12:58:18,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-17 12:58:18,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:18,468 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 12:58:18,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 12:58:18,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:18,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 12:58:18,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 12:58:18,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:18,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:18,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 12:58:18,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 12:58:18,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 12:58:18,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-17 12:58:18,510 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 12:58:18,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 12:58:18,510 INFO L85 PathProgramCache]: Analyzing trace with hash -252462012, now seen corresponding path program 1 times [2023-11-17 12:58:18,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 12:58:18,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107013747] [2023-11-17 12:58:18,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 12:58:18,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 12:58:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 12:58:18,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 12:58:18,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 12:58:18,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107013747] [2023-11-17 12:58:18,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107013747] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 12:58:18,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 12:58:18,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 12:58:18,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511100286] [2023-11-17 12:58:18,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 12:58:18,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 12:58:18,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 12:58:18,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 12:58:18,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-17 12:58:18,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:18,552 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 12:58:18,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 12:58:18,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:18,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 12:58:18,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-17 12:58:18,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 12:58:18,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 12:58:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 12:58:18,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 12:58:18,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 12:58:18,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 12:58:18,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 12:58:18,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-17 12:58:18,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-17 12:58:18,956 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-17 12:58:18,956 INFO L307 ceAbstractionStarter]: Result for error location readerThread1of1ForFork3 was SAFE (2/3) [2023-11-17 12:58:18,959 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 12:58:18,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 12:58:18,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 12:58:18,977 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 12:58:18,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2023-11-17 12:58:18,993 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 12:58:18,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-17 12:58:18,994 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7dad76e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 12:58:18,994 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-17 12:58:19,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-11-17 12:58:19,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-17 12:58:19,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-17 12:58:19,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-17 12:58:19,037 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-11-17 12:58:19,037 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE (3/3) [2023-11-17 12:58:19,038 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 12:58:19,038 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 12:58:19,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 12:58:19 BasicIcfg [2023-11-17 12:58:19,041 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 12:58:19,041 INFO L158 Benchmark]: Toolchain (without parser) took 3676.00ms. Allocated memory was 313.5MB in the beginning and 419.4MB in the end (delta: 105.9MB). Free memory was 257.8MB in the beginning and 312.6MB in the end (delta: -54.9MB). Peak memory consumption was 51.8MB. Max. memory is 8.0GB. [2023-11-17 12:58:19,041 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 183.5MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 12:58:19,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.08ms. Allocated memory is still 313.5MB. Free memory was 257.8MB in the beginning and 237.6MB in the end (delta: 20.2MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-11-17 12:58:19,041 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.11ms. Allocated memory is still 313.5MB. Free memory was 237.6MB in the beginning and 235.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 12:58:19,041 INFO L158 Benchmark]: Boogie Preprocessor took 16.96ms. Allocated memory is still 313.5MB. Free memory was 235.1MB in the beginning and 233.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-17 12:58:19,042 INFO L158 Benchmark]: RCFGBuilder took 448.43ms. Allocated memory is still 313.5MB. Free memory was 233.7MB in the beginning and 268.1MB in the end (delta: -34.4MB). Peak memory consumption was 20.9MB. Max. memory is 8.0GB. [2023-11-17 12:58:19,042 INFO L158 Benchmark]: TraceAbstraction took 2807.39ms. Allocated memory was 313.5MB in the beginning and 419.4MB in the end (delta: 105.9MB). Free memory was 267.5MB in the beginning and 312.6MB in the end (delta: -45.1MB). Peak memory consumption was 60.3MB. Max. memory is 8.0GB. [2023-11-17 12:58:19,043 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 183.5MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 361.08ms. Allocated memory is still 313.5MB. Free memory was 257.8MB in the beginning and 237.6MB in the end (delta: 20.2MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.11ms. Allocated memory is still 313.5MB. Free memory was 237.6MB in the beginning and 235.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.96ms. Allocated memory is still 313.5MB. Free memory was 235.1MB in the beginning and 233.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 448.43ms. Allocated memory is still 313.5MB. Free memory was 233.7MB in the beginning and 268.1MB in the end (delta: -34.4MB). Peak memory consumption was 20.9MB. Max. memory is 8.0GB. * TraceAbstraction took 2807.39ms. Allocated memory was 313.5MB in the beginning and 419.4MB in the end (delta: 105.9MB). Free memory was 267.5MB in the beginning and 312.6MB in the end (delta: -45.1MB). Peak memory consumption was 60.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7529, independent: 7342, independent conditional: 5963, independent unconditional: 1379, dependent: 187, dependent conditional: 145, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7473, independent: 7342, independent conditional: 5963, independent unconditional: 1379, dependent: 131, dependent conditional: 89, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7473, independent: 7342, independent conditional: 5963, independent unconditional: 1379, dependent: 131, dependent conditional: 89, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7829, independent: 7342, independent conditional: 62, independent unconditional: 7280, dependent: 487, dependent conditional: 294, dependent unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7829, independent: 7342, independent conditional: 62, independent unconditional: 7280, dependent: 487, dependent conditional: 173, dependent unconditional: 314, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7829, independent: 7342, independent conditional: 62, independent unconditional: 7280, dependent: 487, dependent conditional: 173, dependent unconditional: 314, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1465, independent: 1389, independent conditional: 10, independent unconditional: 1379, dependent: 76, dependent conditional: 34, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1465, independent: 1356, independent conditional: 0, independent unconditional: 1356, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 109, independent: 33, independent conditional: 10, independent unconditional: 23, dependent: 76, dependent conditional: 34, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 109, independent: 33, independent conditional: 10, independent unconditional: 23, dependent: 76, dependent conditional: 34, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 195, independent: 93, independent conditional: 18, independent unconditional: 75, dependent: 102, dependent conditional: 35, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 7829, independent: 5953, independent conditional: 52, independent unconditional: 5901, dependent: 411, dependent conditional: 139, dependent unconditional: 272, unknown: 1465, unknown conditional: 44, unknown unconditional: 1421] , Statistics on independence cache: Total cache size (in pairs): 1465, Positive cache size: 1389, Positive conditional cache size: 10, Positive unconditional cache size: 1379, Negative cache size: 76, Negative conditional cache size: 34, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 121, Maximal queried relation: 4, Independence queries for same thread: 56 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 453, Number of trivial persistent sets: 2, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1421, independent: 1379, independent conditional: 0, independent unconditional: 1379, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7529, independent: 7342, independent conditional: 5963, independent unconditional: 1379, dependent: 187, dependent conditional: 145, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7473, independent: 7342, independent conditional: 5963, independent unconditional: 1379, dependent: 131, dependent conditional: 89, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7473, independent: 7342, independent conditional: 5963, independent unconditional: 1379, dependent: 131, dependent conditional: 89, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7829, independent: 7342, independent conditional: 62, independent unconditional: 7280, dependent: 487, dependent conditional: 294, dependent unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7829, independent: 7342, independent conditional: 62, independent unconditional: 7280, dependent: 487, dependent conditional: 173, dependent unconditional: 314, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7829, independent: 7342, independent conditional: 62, independent unconditional: 7280, dependent: 487, dependent conditional: 173, dependent unconditional: 314, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1465, independent: 1389, independent conditional: 10, independent unconditional: 1379, dependent: 76, dependent conditional: 34, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1465, independent: 1356, independent conditional: 0, independent unconditional: 1356, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 109, independent: 33, independent conditional: 10, independent unconditional: 23, dependent: 76, dependent conditional: 34, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 109, independent: 33, independent conditional: 10, independent unconditional: 23, dependent: 76, dependent conditional: 34, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 195, independent: 93, independent conditional: 18, independent unconditional: 75, dependent: 102, dependent conditional: 35, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 7829, independent: 5953, independent conditional: 52, independent unconditional: 5901, dependent: 411, dependent conditional: 139, dependent unconditional: 272, unknown: 1465, unknown conditional: 44, unknown unconditional: 1421] , Statistics on independence cache: Total cache size (in pairs): 1465, Positive cache size: 1389, Positive conditional cache size: 10, Positive unconditional cache size: 1379, Negative cache size: 76, Negative conditional cache size: 34, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 121, Maximal queried relation: 4, Independence queries for same thread: 56 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8060, independent: 7867, independent conditional: 6385, independent unconditional: 1482, dependent: 193, dependent conditional: 151, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8002, independent: 7867, independent conditional: 6385, independent unconditional: 1482, dependent: 135, dependent conditional: 93, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8002, independent: 7867, independent conditional: 6385, independent unconditional: 1482, dependent: 135, dependent conditional: 93, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8377, independent: 7867, independent conditional: 66, independent unconditional: 7801, dependent: 510, dependent conditional: 309, dependent unconditional: 201, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8377, independent: 7867, independent conditional: 66, independent unconditional: 7801, dependent: 510, dependent conditional: 195, dependent unconditional: 315, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8377, independent: 7867, independent conditional: 66, independent unconditional: 7801, dependent: 510, dependent conditional: 195, dependent unconditional: 315, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1569, independent: 1491, independent conditional: 9, independent unconditional: 1482, dependent: 78, dependent conditional: 36, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1569, independent: 1459, independent conditional: 0, independent unconditional: 1459, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 110, independent: 32, independent conditional: 9, independent unconditional: 23, dependent: 78, dependent conditional: 36, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 110, independent: 32, independent conditional: 9, independent unconditional: 23, dependent: 78, dependent conditional: 36, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 176, independent: 63, independent conditional: 12, independent unconditional: 51, dependent: 113, dependent conditional: 37, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 8377, independent: 6376, independent conditional: 57, independent unconditional: 6319, dependent: 432, dependent conditional: 159, dependent unconditional: 273, unknown: 1569, unknown conditional: 45, unknown unconditional: 1524] , Statistics on independence cache: Total cache size (in pairs): 1569, Positive cache size: 1491, Positive conditional cache size: 9, Positive unconditional cache size: 1482, Negative cache size: 78, Negative conditional cache size: 36, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 114, Maximal queried relation: 4, Independence queries for same thread: 58 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 590, Number of trivial persistent sets: 50, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1524, independent: 1482, independent conditional: 0, independent unconditional: 1482, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8060, independent: 7867, independent conditional: 6385, independent unconditional: 1482, dependent: 193, dependent conditional: 151, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8002, independent: 7867, independent conditional: 6385, independent unconditional: 1482, dependent: 135, dependent conditional: 93, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8002, independent: 7867, independent conditional: 6385, independent unconditional: 1482, dependent: 135, dependent conditional: 93, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8377, independent: 7867, independent conditional: 66, independent unconditional: 7801, dependent: 510, dependent conditional: 309, dependent unconditional: 201, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8377, independent: 7867, independent conditional: 66, independent unconditional: 7801, dependent: 510, dependent conditional: 195, dependent unconditional: 315, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8377, independent: 7867, independent conditional: 66, independent unconditional: 7801, dependent: 510, dependent conditional: 195, dependent unconditional: 315, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1569, independent: 1491, independent conditional: 9, independent unconditional: 1482, dependent: 78, dependent conditional: 36, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1569, independent: 1459, independent conditional: 0, independent unconditional: 1459, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 110, independent: 32, independent conditional: 9, independent unconditional: 23, dependent: 78, dependent conditional: 36, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 110, independent: 32, independent conditional: 9, independent unconditional: 23, dependent: 78, dependent conditional: 36, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 176, independent: 63, independent conditional: 12, independent unconditional: 51, dependent: 113, dependent conditional: 37, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 8377, independent: 6376, independent conditional: 57, independent unconditional: 6319, dependent: 432, dependent conditional: 159, dependent unconditional: 273, unknown: 1569, unknown conditional: 45, unknown unconditional: 1524] , Statistics on independence cache: Total cache size (in pairs): 1569, Positive cache size: 1491, Positive conditional cache size: 9, Positive unconditional cache size: 1482, Negative cache size: 78, Negative conditional cache size: 36, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 114, Maximal queried relation: 4, Independence queries for same thread: 58 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 570, independent: 567, independent conditional: 19, independent unconditional: 548, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 570, independent: 567, independent conditional: 19, independent unconditional: 548, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 570, independent: 567, independent conditional: 19, independent unconditional: 548, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 570, independent: 567, independent conditional: 0, independent unconditional: 567, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 570, independent: 567, independent conditional: 0, independent unconditional: 567, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 570, independent: 567, independent conditional: 0, independent unconditional: 567, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 551, independent: 548, independent conditional: 0, independent unconditional: 548, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 551, independent: 545, independent conditional: 0, independent unconditional: 545, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 570, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 551, unknown conditional: 0, unknown unconditional: 551] , Statistics on independence cache: Total cache size (in pairs): 551, Positive cache size: 548, Positive conditional cache size: 0, Positive unconditional cache size: 548, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.0s, Number of persistent set computation: 8, Number of trivial persistent sets: 2, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 551, independent: 548, independent conditional: 0, independent unconditional: 548, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 570, independent: 567, independent conditional: 19, independent unconditional: 548, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 570, independent: 567, independent conditional: 19, independent unconditional: 548, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 570, independent: 567, independent conditional: 19, independent unconditional: 548, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 570, independent: 567, independent conditional: 0, independent unconditional: 567, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 570, independent: 567, independent conditional: 0, independent unconditional: 567, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 570, independent: 567, independent conditional: 0, independent unconditional: 567, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 551, independent: 548, independent conditional: 0, independent unconditional: 548, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 551, independent: 545, independent conditional: 0, independent unconditional: 545, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 570, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 551, unknown conditional: 0, unknown unconditional: 551] , Statistics on independence cache: Total cache size (in pairs): 551, Positive cache size: 548, Positive conditional cache size: 0, Positive unconditional cache size: 548, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 0 - PositiveResult [Line: 739]: 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: readerThread1of1ForFork2 with 1 thread instances CFG has 7 procedures, 76 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.9s, 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: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: readerThread1of1ForFork3 with 1 thread instances CFG has 7 procedures, 76 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 28, 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, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 76 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, 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: 0, 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-17 12:58:19,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Ended with exit code 0 [2023-11-17 12:58:19,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2023-11-17 12:58:19,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-11-17 12:58:19,668 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...