/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.line583.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-30 07:19:21,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-30 07:19:21,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-30 07:19:21,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-30 07:19:21,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-30 07:19:21,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-30 07:19:21,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-30 07:19:21,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-30 07:19:21,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-30 07:19:21,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-30 07:19:21,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-30 07:19:21,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-30 07:19:21,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-30 07:19:21,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-30 07:19:21,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-30 07:19:21,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-30 07:19:21,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-30 07:19:21,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-30 07:19:21,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-30 07:19:21,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-30 07:19:21,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-30 07:19:21,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-30 07:19:21,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-30 07:19:21,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-30 07:19:21,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-30 07:19:21,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-30 07:19:21,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-30 07:19:21,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-30 07:19:21,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-30 07:19:21,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-09-30 07:19:21,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-30 07:19:21,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-30 07:19:21,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-30 07:19:21,905 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-30 07:19:21,919 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-30 07:19:21,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-30 07:19:21,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-30 07:19:21,919 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-30 07:19:21,920 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-30 07:19:21,920 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-30 07:19:21,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-30 07:19:21,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-30 07:19:21,921 INFO L138 SettingsManager]: * Use SBE=true [2022-09-30 07:19:21,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-30 07:19:21,921 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-30 07:19:21,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-30 07:19:21,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-30 07:19:21,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-30 07:19:21,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-30 07:19:21,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-30 07:19:21,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-30 07:19:21,922 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-30 07:19:21,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-30 07:19:21,922 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-30 07:19:21,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-30 07:19:21,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-30 07:19:21,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-30 07:19:21,923 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-30 07:19:21,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-30 07:19:21,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-30 07:19:21,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-30 07:19:21,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-30 07:19:21,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-30 07:19:21,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-30 07:19:21,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-30 07:19:21,924 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-30 07:19:21,924 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-30 07:19:21,924 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-30 07:19:21,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-30 07:19:21,924 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-30 07:19:21,925 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-30 07:19:21,925 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-30 07:19:21,925 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-30 07:19:22,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-30 07:19:22,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-30 07:19:22,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-30 07:19:22,167 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-30 07:19:22,168 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-30 07:19:22,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line583.bpl [2022-09-30 07:19:22,169 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line583.bpl' [2022-09-30 07:19:22,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-30 07:19:22,233 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-30 07:19:22,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-30 07:19:22,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-30 07:19:22,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-30 07:19:22,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring_2w1r-1.line583.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:19:22" (1/1) ... [2022-09-30 07:19:22,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring_2w1r-1.line583.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:19:22" (1/1) ... [2022-09-30 07:19:22,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring_2w1r-1.line583.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:19:22" (1/1) ... [2022-09-30 07:19:22,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring_2w1r-1.line583.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:19:22" (1/1) ... [2022-09-30 07:19:22,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring_2w1r-1.line583.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:19:22" (1/1) ... [2022-09-30 07:19:22,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring_2w1r-1.line583.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:19:22" (1/1) ... [2022-09-30 07:19:22,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring_2w1r-1.line583.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:19:22" (1/1) ... [2022-09-30 07:19:22,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-30 07:19:22,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-30 07:19:22,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-30 07:19:22,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-30 07:19:22,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring_2w1r-1.line583.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:19:22" (1/1) ... [2022-09-30 07:19:22,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-30 07:19:22,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 07:19:22,367 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 07:19:22,379 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 07:19:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2022-09-30 07:19:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2022-09-30 07:19:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2022-09-30 07:19:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2022-09-30 07:19:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-30 07:19:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-30 07:19:22,395 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 07:19:22,554 INFO L234 CfgBuilder]: Building ICFG [2022-09-30 07:19:22,555 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-30 07:19:23,061 INFO L275 CfgBuilder]: Performing block encoding [2022-09-30 07:19:23,085 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-30 07:19:23,085 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-09-30 07:19:23,087 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line583.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 07:19:23 BoogieIcfgContainer [2022-09-30 07:19:23,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-30 07:19:23,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-30 07:19:23,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-30 07:19:23,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-30 07:19:23,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line583.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 07:19:22" (1/2) ... [2022-09-30 07:19:23,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39bb53be and model type ring_2w1r-1.line583.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 07:19:23, skipping insertion in model container [2022-09-30 07:19:23,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line583.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 07:19:23" (2/2) ... [2022-09-30 07:19:23,103 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_2w1r-1.line583.bpl [2022-09-30 07:19:23,108 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-30 07:19:23,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-30 07:19:23,118 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-30 07:19:23,118 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-30 07:19:23,239 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-30 07:19:23,283 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 07:19:23,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 07:19:23,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 07:19:23,285 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 07:19:23,290 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 07:19:23,317 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 07:19:23,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-30 07:19:23,326 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;@338a07d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 07:19:23,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 07:19:23,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-30 07:19:23,743 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-30 07:19:23,745 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (1/4) [2022-09-30 07:19:23,751 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 07:19:23,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 07:19:23,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 07:19:23,752 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 07:19:23,753 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 07:19:23,756 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 07:19:23,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-30 07:19:23,757 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;@338a07d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 07:19:23,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 07:19:23,762 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-30 07:19:23,763 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-30 07:19:23,763 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2022-09-30 07:19:23,767 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 07:19:23,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 07:19:23,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 07:19:23,796 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 07:19:23,799 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 07:19:23,801 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 07:19:23,802 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == writer_fnErr0ASSERT_VIOLATIONASSERT ======== [2022-09-30 07:19:23,802 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;@338a07d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 07:19:23,802 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 07:19:23,802 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-09-30 07:19:23,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writer_fnErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-30 07:19:23,803 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-30 07:19:23,803 INFO L307 ceAbstractionStarter]: Result for error location writer_fnErr0ASSERT_VIOLATIONASSERT was SAFE (3/4) [2022-09-30 07:19:23,808 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 07:19:23,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 07:19:23,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 07:19:23,810 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 07:19:23,811 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 07:19:23,813 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 07:19:23,814 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == writer_fnErr0ASSERT_VIOLATIONASSERT ======== [2022-09-30 07:19:23,814 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;@338a07d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 07:19:23,814 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 07:19:23,872 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-09-30 07:19:23,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 07:19:23,875 INFO L85 PathProgramCache]: Analyzing trace with hash 639131051, now seen corresponding path program 1 times [2022-09-30 07:19:23,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 07:19:23,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449112774] [2022-09-30 07:19:23,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 07:19:23,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 07:19:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 07:19:24,187 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 07:19:24,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 07:19:24,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449112774] [2022-09-30 07:19:24,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449112774] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 07:19:24,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 07:19:24,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-30 07:19:24,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796214067] [2022-09-30 07:19:24,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 07:19:24,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-30 07:19:24,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 07:19:24,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-30 07:19:24,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-30 07:19:24,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 07:19:24,226 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 07:19:24,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 98.5) internal successors, (197), 2 states have internal predecessors, (197), 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 07:19:24,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 07:19:24,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 07:19:24,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-30 07:19:24,268 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-09-30 07:19:24,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 07:19:24,269 INFO L85 PathProgramCache]: Analyzing trace with hash 244561504, now seen corresponding path program 1 times [2022-09-30 07:19:24,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 07:19:24,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764120297] [2022-09-30 07:19:24,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 07:19:24,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 07:19:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 07:19:25,454 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 07:19:25,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 07:19:25,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764120297] [2022-09-30 07:19:25,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764120297] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 07:19:25,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 07:19:25,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-09-30 07:19:25,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053735065] [2022-09-30 07:19:25,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 07:19:25,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-09-30 07:19:25,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 07:19:25,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-09-30 07:19:25,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1157, Unknown=0, NotChecked=0, Total=1260 [2022-09-30 07:19:25,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 07:19:25,459 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 07:19:25,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 6.142857142857143) internal successors, (215), 36 states have internal predecessors, (215), 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 07:19:25,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 07:19:25,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 07:19:29,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 07:19:29,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-09-30 07:19:29,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-30 07:19:29,136 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-09-30 07:19:29,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 07:19:29,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1343180834, now seen corresponding path program 1 times [2022-09-30 07:19:29,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 07:19:29,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412261997] [2022-09-30 07:19:29,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 07:19:29,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 07:19:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 07:19:30,717 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 07:19:30,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 07:19:30,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412261997] [2022-09-30 07:19:30,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412261997] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 07:19:30,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163059961] [2022-09-30 07:19:30,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 07:19:30,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 07:19:30,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 07:19:30,719 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 07:19:30,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-30 07:19:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 07:19:30,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 131 conjunts are in the unsatisfiable core [2022-09-30 07:19:30,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 07:19:30,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-30 07:19:30,959 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-09-30 07:19:30,959 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-09-30 07:19:30,992 INFO L356 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-09-30 07:19:30,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-09-30 07:19:31,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-09-30 07:19:31,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-30 07:19:31,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-09-30 07:19:31,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-09-30 07:19:31,895 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-09-30 07:19:32,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-30 07:19:32,875 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-09-30 07:19:32,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 28 [2022-09-30 07:19:33,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2022-09-30 07:19:33,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-09-30 07:19:33,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-30 07:19:33,797 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-09-30 07:19:33,968 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 07:19:33,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-30 07:19:34,505 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2022-09-30 07:19:34,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-30 07:19:34,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-30 07:19:51,114 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_88 (Array Int Int))) (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select (select (store |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_main_~#writer~0#1.base| v_ArrVal_88) |c_ULTIMATE.start_main_~#r~3#1.base|) (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 20)) 4) 4) 0)))) (and (or .cse0 (<= 0 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 4))) (or (forall ((|v_writer_fnThread1of1ForFork0_write~int_#ptr#1.offset_21| Int) (v_ArrVal_90 Int) (v_ArrVal_88 (Array Int Int))) (let ((.cse1 (select (store |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_main_~#writer~0#1.base| v_ArrVal_88) |c_ULTIMATE.start_main_~#r~3#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 20))) (or (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select .cse1 .cse2) 4) 4) |v_writer_fnThread1of1ForFork0_write~int_#ptr#1.offset_21|) (not (<= 0 |v_writer_fnThread1of1ForFork0_write~int_#ptr#1.offset_21|)) (< (+ 7 (* (div (+ (- 9) (* (- 1) |c_ULTIMATE.start_main_~#r~3#1.offset|)) 16) 16)) (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select (store .cse1 |v_writer_fnThread1of1ForFork0_write~int_#ptr#1.offset_21| v_ArrVal_90) .cse2) 4)))))) (< 7 |c_ULTIMATE.start_main_~#r~3#1.offset|)) (or .cse0 (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 19) (select |c_#length| |c_ULTIMATE.start_main_~#r~3#1.base|))))) is different from false [2022-09-30 07:19:51,146 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_88 (Array Int Int))) (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#writer~0#1.base| v_ArrVal_88) |c_ULTIMATE.start_main_~#r~3#1.base|) (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 20)) 4) 4) 0)))) (and (or (<= 0 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 4)) .cse0) (or (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 19) (select |c_#length| |c_ULTIMATE.start_main_~#r~3#1.base|)) .cse0) (or (< 7 |c_ULTIMATE.start_main_~#r~3#1.offset|) (forall ((|v_writer_fnThread1of1ForFork0_write~int_#ptr#1.offset_21| Int) (v_ArrVal_90 Int) (v_ArrVal_88 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#writer~0#1.base| v_ArrVal_88) |c_ULTIMATE.start_main_~#r~3#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 20))) (or (< (+ 7 (* (div (+ (- 9) (* (- 1) |c_ULTIMATE.start_main_~#r~3#1.offset|)) 16) 16)) (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select (store .cse1 |v_writer_fnThread1of1ForFork0_write~int_#ptr#1.offset_21| v_ArrVal_90) .cse2) 4))) (not (<= 0 |v_writer_fnThread1of1ForFork0_write~int_#ptr#1.offset_21|)) (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select .cse1 .cse2) 4) 4) |v_writer_fnThread1of1ForFork0_write~int_#ptr#1.offset_21|))))))) is different from false [2022-09-30 07:19:51,499 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_88 (Array Int Int)) (v_ArrVal_87 (Array Int Int))) (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select (select (store (store |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_87) |c_ULTIMATE.start_main_~#writer~0#1.base| v_ArrVal_88) |c_ULTIMATE.start_main_~#r~3#1.base|) (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 20)) 4) 4) 0)))) (and (or (<= 0 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 4)) .cse0) (or (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 19) (select |c_#length| |c_ULTIMATE.start_main_~#r~3#1.base|)) .cse0) (or (forall ((|v_writer_fnThread1of1ForFork0_write~int_#ptr#1.offset_21| Int) (v_ArrVal_90 Int) (v_ArrVal_88 (Array Int Int)) (v_ArrVal_87 (Array Int Int))) (let ((.cse1 (select (store (store |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_87) |c_ULTIMATE.start_main_~#writer~0#1.base| v_ArrVal_88) |c_ULTIMATE.start_main_~#r~3#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 20))) (or (not (<= 0 |v_writer_fnThread1of1ForFork0_write~int_#ptr#1.offset_21|)) (< (+ 7 (* (div (+ (- 9) (* (- 1) |c_ULTIMATE.start_main_~#r~3#1.offset|)) 16) 16)) (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select (store .cse1 |v_writer_fnThread1of1ForFork0_write~int_#ptr#1.offset_21| v_ArrVal_90) .cse2) 4))) (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select .cse1 .cse2) 4) 4) |v_writer_fnThread1of1ForFork0_write~int_#ptr#1.offset_21|)))) (< 7 |c_ULTIMATE.start_main_~#r~3#1.offset|)))) is different from false [2022-09-30 07:19:53,455 INFO L356 Elim1Store]: treesize reduction 45, result has 63.7 percent of original size [2022-09-30 07:19:53,456 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 223 treesize of output 278 [2022-09-30 07:19:53,581 INFO L356 Elim1Store]: treesize reduction 106, result has 18.5 percent of original size [2022-09-30 07:19:53,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 1837321 treesize of output 1835288 [2022-09-30 07:20:00,251 WARN L233 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 1741 DAG size of output: 1740 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-09-30 07:20:00,445 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2293870 treesize of output 2162798 [2022-09-30 07:20:04,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2392174 treesize of output 2326638 [2022-09-30 07:20:27,381 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2326662 treesize of output 2326654 [2022-09-30 07:20:31,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2326654 treesize of output 2326650 [2022-09-30 07:21:02,423 WARN L233 SmtUtils]: Spent 10.00s on a formula simplification. DAG size of input: 837 DAG size of output: 837 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-09-30 07:21:10,330 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 530 DAG size of output: 530 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2022-09-30 07:33:46,969 WARN L249 SmtUtils]: Removed 1 from assertion stack [2022-09-30 07:33:46,974 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location writer_fnErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-30 07:33:46,988 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-30 07:33:46,991 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-30 07:33:46,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-30 07:33:47,005 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-30 07:33:47,009 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-30 07:33:47,009 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-30 07:33:47,015 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-30 07:33:47,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 07:33:47,176 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 292 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. [2022-09-30 07:33:47,177 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-09-30 07:33:47,177 INFO L307 ceAbstractionStarter]: Result for error location writer_fnErr0ASSERT_VIOLATIONASSERT was TIMEOUT (4/4) [2022-09-30 07:33:47,179 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-30 07:33:47,180 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-30 07:33:47,182 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line583.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 07:33:47 BasicIcfg [2022-09-30 07:33:47,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-30 07:33:47,183 INFO L158 Benchmark]: Toolchain (without parser) took 864949.91ms. Allocated memory was 187.7MB in the beginning and 647.0MB in the end (delta: 459.3MB). Free memory was 140.2MB in the beginning and 271.9MB in the end (delta: -131.7MB). Peak memory consumption was 398.3MB. Max. memory is 8.0GB. [2022-09-30 07:33:47,183 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 187.7MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-30 07:33:47,183 INFO L158 Benchmark]: Boogie Preprocessor took 78.84ms. Allocated memory is still 187.7MB. Free memory was 140.1MB in the beginning and 136.2MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-09-30 07:33:47,184 INFO L158 Benchmark]: RCFGBuilder took 770.61ms. Allocated memory was 187.7MB in the beginning and 276.8MB in the end (delta: 89.1MB). Free memory was 136.2MB in the beginning and 224.6MB in the end (delta: -88.4MB). Peak memory consumption was 25.0MB. Max. memory is 8.0GB. [2022-09-30 07:33:47,184 INFO L158 Benchmark]: TraceAbstraction took 864093.47ms. Allocated memory was 276.8MB in the beginning and 647.0MB in the end (delta: 370.1MB). Free memory was 224.1MB in the beginning and 271.9MB in the end (delta: -47.9MB). Peak memory consumption was 392.2MB. Max. memory is 8.0GB. [2022-09-30 07:33:47,185 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 0.13ms. Allocated memory is still 187.7MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 78.84ms. Allocated memory is still 187.7MB. Free memory was 140.1MB in the beginning and 136.2MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 770.61ms. Allocated memory was 187.7MB in the beginning and 276.8MB in the end (delta: 89.1MB). Free memory was 136.2MB in the beginning and 224.6MB in the end (delta: -88.4MB). Peak memory consumption was 25.0MB. Max. memory is 8.0GB. * TraceAbstraction took 864093.47ms. Allocated memory was 276.8MB in the beginning and 647.0MB in the end (delta: 370.1MB). Free memory was 224.1MB in the beginning and 271.9MB in the end (delta: -47.9MB). Peak memory consumption was 392.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2771, positive: 2612, positive conditional: 2612, positive unconditional: 0, negative: 159, negative conditional: 159, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2771, positive: 2612, positive conditional: 2612, positive unconditional: 0, negative: 159, negative conditional: 159, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2635, positive: 2612, positive conditional: 0, positive unconditional: 2612, 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: 2568, positive: 2545, positive conditional: 0, positive unconditional: 2545, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2635, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2568, unknown conditional: 0, unknown unconditional: 2568] , Statistics on independence cache: Total cache size (in pairs): 2568, Positive cache size: 2545, Positive conditional cache size: 0, Positive unconditional cache size: 2545, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Independence queries for same thread: 136, 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: 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: 122, positive: 118, positive conditional: 118, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 709, positive: 696, positive conditional: 696, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 696, positive: 696, positive conditional: 0, positive unconditional: 696, 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: 241, positive: 241, positive conditional: 0, positive unconditional: 241, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 696, positive: 455, positive conditional: 0, positive unconditional: 455, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 241, unknown conditional: 0, unknown unconditional: 241] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 4, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 175, positive: 172, positive conditional: 172, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 709, positive: 696, positive conditional: 696, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 696, positive: 696, positive conditional: 0, positive unconditional: 696, 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: 241, positive: 241, positive conditional: 0, positive unconditional: 241, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 696, positive: 455, positive conditional: 0, positive unconditional: 455, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 241, unknown conditional: 0, unknown unconditional: 241] , Statistics on independence cache: Total cache size (in pairs): 124, Positive cache size: 124, Positive conditional cache size: 0, Positive unconditional cache size: 124, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 7, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 412, positive: 406, positive conditional: 406, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 709, positive: 696, positive conditional: 696, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 696, positive: 696, positive conditional: 0, positive unconditional: 696, 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: 241, positive: 241, positive conditional: 0, positive unconditional: 241, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 696, positive: 455, positive conditional: 0, positive unconditional: 455, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 241, unknown conditional: 0, unknown unconditional: 241] , Statistics on independence cache: Total cache size (in pairs): 241, Positive cache size: 241, Positive conditional cache size: 0, Positive unconditional cache size: 241, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 13, Statistics for Abstraction: - TimeoutResultAtElement [Line: 583]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 292 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - 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: 0.4s, 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: writer_fnErr0ASSERT_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: writer_fnErr0ASSERT_VIOLATIONASSERT with 2 thread instances CFG has 5 procedures, 852 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 863.4s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 3.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 41, 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, 1.1s InterpolantComputationTime, 412 NumberOfCodeBlocks, 412 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 410 ConstructedInterpolants, 0 QuantifiedInterpolants, 2459 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown