/usr/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/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line408.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-30 07:13:06,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-30 07:13:06,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-30 07:13:06,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-30 07:13:06,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-30 07:13:06,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-30 07:13:06,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-30 07:13:06,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-30 07:13:06,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-30 07:13:06,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-30 07:13:06,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-30 07:13:06,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-30 07:13:06,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-30 07:13:06,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-30 07:13:06,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-30 07:13:06,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-30 07:13:06,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-30 07:13:06,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-30 07:13:06,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-30 07:13:06,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-30 07:13:06,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-30 07:13:06,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-30 07:13:06,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-30 07:13:06,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-30 07:13:06,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-30 07:13:06,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-30 07:13:06,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-30 07:13:06,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-30 07:13:06,208 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-30 07:13:06,238 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-30 07:13:06,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-30 07:13:06,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-30 07:13:06,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-30 07:13:06,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-30 07:13:06,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-30 07:13:06,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-30 07:13:06,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-30 07:13:06,240 INFO L138 SettingsManager]: * Use SBE=true [2022-09-30 07:13:06,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-30 07:13:06,240 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-30 07:13:06,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-30 07:13:06,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-30 07:13:06,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-30 07:13:06,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-30 07:13:06,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-30 07:13:06,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-30 07:13:06,241 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-30 07:13:06,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-30 07:13:06,241 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-30 07:13:06,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-30 07:13:06,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-30 07:13:06,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-30 07:13:06,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-30 07:13:06,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-30 07:13:06,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-30 07:13:06,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-30 07:13:06,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-30 07:13:06,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-30 07:13:06,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-30 07:13:06,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-30 07:13:06,242 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-30 07:13:06,242 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-30 07:13:06,242 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-30 07:13:06,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-30 07:13:06,243 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-30 07:13:06,243 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-30 07:13:06,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-30 07:13:06,244 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-30 07:13:06,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-30 07:13:06,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-30 07:13:06,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-30 07:13:06,483 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-30 07:13:06,484 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-30 07:13:06,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line408.bpl [2022-09-30 07:13:06,485 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line408.bpl' [2022-09-30 07:13:06,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-30 07:13:06,537 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-30 07:13:06,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-30 07:13:06,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-30 07:13:06,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-30 07:13:06,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring_2w1r-1.line408.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:13:06" (1/1) ... [2022-09-30 07:13:06,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring_2w1r-1.line408.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:13:06" (1/1) ... [2022-09-30 07:13:06,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring_2w1r-1.line408.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:13:06" (1/1) ... [2022-09-30 07:13:06,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring_2w1r-1.line408.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:13:06" (1/1) ... [2022-09-30 07:13:06,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring_2w1r-1.line408.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:13:06" (1/1) ... [2022-09-30 07:13:06,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring_2w1r-1.line408.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:13:06" (1/1) ... [2022-09-30 07:13:06,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring_2w1r-1.line408.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:13:06" (1/1) ... [2022-09-30 07:13:06,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-30 07:13:06,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-30 07:13:06,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-30 07:13:06,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-30 07:13:06,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring_2w1r-1.line408.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:13:06" (1/1) ... [2022-09-30 07:13:06,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-30 07:13:06,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 07:13:06,650 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) [2022-09-30 07:13:06,657 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 [2022-09-30 07:13:06,681 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2022-09-30 07:13:06,681 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2022-09-30 07:13:06,681 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2022-09-30 07:13:06,681 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2022-09-30 07:13:06,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-30 07:13:06,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-30 07:13:06,683 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-30 07:13:06,803 INFO L234 CfgBuilder]: Building ICFG [2022-09-30 07:13:06,804 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-30 07:13:07,314 INFO L275 CfgBuilder]: Performing block encoding [2022-09-30 07:13:07,333 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-30 07:13:07,333 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-09-30 07:13:07,336 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line408.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 07:13:07 BoogieIcfgContainer [2022-09-30 07:13:07,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-30 07:13:07,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-30 07:13:07,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-30 07:13:07,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-30 07:13:07,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line408.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:13:06" (1/2) ... [2022-09-30 07:13:07,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d53331 and model type ring_2w1r-1.line408.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 07:13:07, skipping insertion in model container [2022-09-30 07:13:07,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line408.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 07:13:07" (2/2) ... [2022-09-30 07:13:07,346 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_2w1r-1.line408.bpl [2022-09-30 07:13:07,352 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-30 07:13:07,358 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-30 07:13:07,359 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-30 07:13:07,359 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-30 07:13:07,471 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-30 07:13:07,511 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 07:13:07,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 07:13:07,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 07:13:07,514 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) [2022-09-30 07:13:07,515 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 [2022-09-30 07:13:07,556 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 07:13:07,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == reader_twoErr0ASSERT_VIOLATIONASSERT ======== [2022-09-30 07:13:07,569 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=LoopsAndPotentialCycles, 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;@6ce358e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 07:13:07,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 07:13:07,572 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-09-30 07:13:07,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location reader_twoErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-30 07:13:07,578 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-30 07:13:07,580 INFO L307 ceAbstractionStarter]: Result for error location reader_twoErr0ASSERT_VIOLATIONASSERT was SAFE (1/4) [2022-09-30 07:13:07,590 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 07:13:07,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 07:13:07,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 07:13:07,592 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) [2022-09-30 07:13:07,593 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 [2022-09-30 07:13:07,597 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 07:13:07,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-30 07:13:07,598 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=LoopsAndPotentialCycles, 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;@6ce358e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 07:13:07,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 07:13:08,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-30 07:13:08,077 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-30 07:13:08,080 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2022-09-30 07:13:08,092 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 07:13:08,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 07:13:08,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 07:13:08,141 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) [2022-09-30 07:13:08,142 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 [2022-09-30 07:13:08,146 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 07:13:08,146 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-30 07:13:08,147 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=LoopsAndPotentialCycles, 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;@6ce358e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 07:13:08,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 07:13:08,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-30 07:13:08,153 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-30 07:13:08,153 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/4) [2022-09-30 07:13:08,158 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 07:13:08,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 07:13:08,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 07:13:08,160 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-30 07:13:08,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-09-30 07:13:08,164 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 07:13:08,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == reader_twoErr0ASSERT_VIOLATIONASSERT ======== [2022-09-30 07:13:08,165 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=LoopsAndPotentialCycles, 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;@6ce358e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 07:13:08,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 07:13:08,863 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reader_twoErr0ASSERT_VIOLATIONASSERT === [reader_twoErr0ASSERT_VIOLATIONASSERT] === [2022-09-30 07:13:08,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 07:13:08,867 INFO L85 PathProgramCache]: Analyzing trace with hash 72039256, now seen corresponding path program 1 times [2022-09-30 07:13:08,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 07:13:08,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963277933] [2022-09-30 07:13:08,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 07:13:08,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 07:13:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 07:13:09,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 07:13:09,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 07:13:09,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963277933] [2022-09-30 07:13:09,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963277933] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 07:13:09,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 07:13:09,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-30 07:13:09,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524834451] [2022-09-30 07:13:09,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 07:13:09,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-30 07:13:09,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 07:13:09,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-30 07:13:09,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-30 07:13:09,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 07:13:09,337 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 07:13:09,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 142.0) internal successors, (284), 2 states have internal predecessors, (284), 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) [2022-09-30 07:13:09,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 07:13:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 07:13:10,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-30 07:13:10,437 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reader_twoErr0ASSERT_VIOLATIONASSERT === [reader_twoErr0ASSERT_VIOLATIONASSERT] === [2022-09-30 07:13:10,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 07:13:10,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1268211367, now seen corresponding path program 1 times [2022-09-30 07:13:10,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 07:13:10,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753202574] [2022-09-30 07:13:10,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 07:13:10,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 07:13:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 07:13:10,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 07:13:10,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 07:13:10,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753202574] [2022-09-30 07:13:10,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753202574] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 07:13:10,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 07:13:10,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-30 07:13:10,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519649195] [2022-09-30 07:13:10,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 07:13:10,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-30 07:13:10,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 07:13:10,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-30 07:13:10,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-30 07:13:10,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 07:13:10,675 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 07:13:10,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 70.5) internal successors, (282), 5 states have internal predecessors, (282), 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) [2022-09-30 07:13:10,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 07:13:10,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 07:17:11,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 07:17:11,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 07:17:11,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location reader_twoErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-30 07:17:11,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-30 07:17:11,107 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-09-30 07:17:11,108 INFO L307 ceAbstractionStarter]: Result for error location reader_twoErr0ASSERT_VIOLATIONASSERT was SAFE (4/4) [2022-09-30 07:17:11,114 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-30 07:17:11,115 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-30 07:17:11,140 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line408.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 07:17:11 BasicIcfg [2022-09-30 07:17:11,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-30 07:17:11,140 INFO L158 Benchmark]: Toolchain (without parser) took 244603.81ms. Allocated memory was 192.9MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 144.0MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 3.6GB. Max. memory is 8.0GB. [2022-09-30 07:17:11,141 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 192.9MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-30 07:17:11,141 INFO L158 Benchmark]: Boogie Preprocessor took 75.27ms. Allocated memory is still 192.9MB. Free memory was 144.0MB in the beginning and 140.4MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-30 07:17:11,141 INFO L158 Benchmark]: RCFGBuilder took 719.54ms. Allocated memory is still 192.9MB. Free memory was 140.3MB in the beginning and 136.4MB in the end (delta: 3.9MB). Peak memory consumption was 15.4MB. Max. memory is 8.0GB. [2022-09-30 07:17:11,141 INFO L158 Benchmark]: TraceAbstraction took 243802.84ms. Allocated memory was 192.9MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 135.6MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 3.6GB. Max. memory is 8.0GB. [2022-09-30 07:17:11,142 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12ms. Allocated memory is still 192.9MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 75.27ms. Allocated memory is still 192.9MB. Free memory was 144.0MB in the beginning and 140.4MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 719.54ms. Allocated memory is still 192.9MB. Free memory was 140.3MB in the beginning and 136.4MB in the end (delta: 3.9MB). Peak memory consumption was 15.4MB. Max. memory is 8.0GB. * TraceAbstraction took 243802.84ms. Allocated memory was 192.9MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 135.6MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 3.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2806, positive: 2636, positive conditional: 2636, positive unconditional: 0, negative: 170, negative conditional: 170, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2806, positive: 2636, positive conditional: 2636, positive unconditional: 0, negative: 170, negative conditional: 170, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2659, positive: 2636, positive conditional: 0, positive unconditional: 2636, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2594, positive: 2571, positive conditional: 0, positive unconditional: 2571, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2659, positive: 65, positive conditional: 0, positive unconditional: 65, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2594, unknown conditional: 0, unknown unconditional: 2594] , Statistics on independence cache: Total cache size (in pairs): 2594, Positive cache size: 2571, Positive conditional cache size: 0, Positive unconditional cache size: 2571, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Independence queries for same thread: 147, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 21275, positive: 20677, positive conditional: 20677, positive unconditional: 0, negative: 598, negative conditional: 598, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6143272, positive: 5971407, positive conditional: 5971407, positive unconditional: 0, negative: 171865, negative conditional: 171865, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6001739, positive: 5971407, positive conditional: 0, positive unconditional: 5971407, negative: 30332, negative conditional: 0, negative unconditional: 30332, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 48701, positive: 48525, positive conditional: 0, positive unconditional: 48525, negative: 176, negative conditional: 0, negative unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6001739, positive: 5922882, positive conditional: 0, positive unconditional: 5922882, negative: 30156, negative conditional: 0, negative unconditional: 30156, unknown: 48701, unknown conditional: 0, unknown unconditional: 48701] , Statistics on independence cache: Total cache size (in pairs): 9199, Positive cache size: 9169, Positive conditional cache size: 0, Positive unconditional cache size: 9169, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Independence queries for same thread: 564, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 63535, positive: 61749, positive conditional: 61749, positive unconditional: 0, negative: 1786, negative conditional: 1786, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6143272, positive: 5971407, positive conditional: 5971407, positive unconditional: 0, negative: 171865, negative conditional: 171865, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6001739, positive: 5971407, positive conditional: 0, positive unconditional: 5971407, negative: 30332, negative conditional: 0, negative unconditional: 30332, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 48701, positive: 48525, positive conditional: 0, positive unconditional: 48525, negative: 176, negative conditional: 0, negative unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6001739, positive: 5922882, positive conditional: 0, positive unconditional: 5922882, negative: 30156, negative conditional: 0, negative unconditional: 30156, unknown: 48701, unknown conditional: 0, unknown unconditional: 48701] , Statistics on independence cache: Total cache size (in pairs): 9601, Positive cache size: 9571, Positive conditional cache size: 0, Positive unconditional cache size: 9571, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Independence queries for same thread: 2248, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 6058462, positive: 5888981, positive conditional: 5888981, positive unconditional: 0, negative: 169481, negative conditional: 169481, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6143272, positive: 5971407, positive conditional: 5971407, positive unconditional: 0, negative: 171865, negative conditional: 171865, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6001739, positive: 5971407, positive conditional: 0, positive unconditional: 5971407, negative: 30332, negative conditional: 0, negative unconditional: 30332, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 48701, positive: 48525, positive conditional: 0, positive unconditional: 48525, negative: 176, negative conditional: 0, negative unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6001739, positive: 5922882, positive conditional: 0, positive unconditional: 5922882, negative: 30156, negative conditional: 0, negative unconditional: 30156, unknown: 48701, unknown conditional: 0, unknown unconditional: 48701] , Statistics on independence cache: Total cache size (in pairs): 48701, Positive cache size: 48525, Positive conditional cache size: 0, Positive unconditional cache size: 48525, Negative cache size: 176, Negative conditional cache size: 0, Negative unconditional cache size: 176, Independence queries for same thread: 141533, Statistics for Abstraction: - PositiveResult [Line: 408]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: reader_twoErr0ASSERT_VIOLATIONASSERT with 1 thread instances CFG has 5 procedures, 852 locations, 4 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: reader_twoErr0ASSERT_VIOLATIONASSERT with 2 thread instances CFG has 5 procedures, 852 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 242.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 242.2s, 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: 7, 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, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 566 NumberOfCodeBlocks, 566 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 564 ConstructedInterpolants, 0 QuantifiedInterpolants, 1044 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 5 procedures, 852 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.5s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 5 procedures, 852 locations, 4 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! [2022-09-30 07:17:11,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Forceful destruction successful, exit code 0 [2022-09-30 07:17:11,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Forceful destruction successful, exit code 0 [2022-09-30 07:17:11,595 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 [2022-09-30 07:17:11,791 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 [2022-09-30 07:17:12,000 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...