/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert03.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 12:05:33,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 12:05:33,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 12:05:33,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-22 12:05:33,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-22 12:05:33,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-22 12:05:33,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-22 12:05:33,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-22 12:05:33,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-22 12:05:33,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-22 12:05:33,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-22 12:05:33,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-22 12:05:33,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-22 12:05:33,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-22 12:05:33,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-22 12:05:33,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-22 12:05:33,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-22 12:05:33,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-22 12:05:33,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-22 12:05:33,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-22 12:05:33,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-22 12:05:33,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-22 12:05:33,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-22 12:05:33,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-22 12:05:33,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-22 12:05:33,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-22 12:05:33,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-22 12:05:33,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-22 12:05:33,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-22 12:05:33,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-22 12:05:33,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-22 12:05:33,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-22 12:05:33,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-22 12:05:33,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-22 12:05:33,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-22 12:05:33,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-22 12:05:33,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-22 12:05:33,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-22 12:05:33,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-22 12:05:33,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-22 12:05:33,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-22 12:05:33,988 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe.epf [2021-10-22 12:05:34,005 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 12:05:34,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 12:05:34,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 12:05:34,006 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 12:05:34,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 12:05:34,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 12:05:34,007 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 12:05:34,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 12:05:34,007 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 12:05:34,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 12:05:34,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 12:05:34,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 12:05:34,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 12:05:34,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 12:05:34,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 12:05:34,008 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 12:05:34,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 12:05:34,009 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 12:05:34,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 12:05:34,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 12:05:34,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 12:05:34,009 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 12:05:34,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 12:05:34,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 12:05:34,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 12:05:34,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 12:05:34,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 12:05:34,010 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 12:05:34,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 12:05:34,010 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 12:05:34,011 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 12:05:34,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 12:05:34,011 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 12:05:34,011 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 12:05:34,011 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 12:05:34,011 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 12:05:34,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 12:05:34,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 12:05:34,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 12:05:34,218 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-22 12:05:34,218 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-22 12:05:34,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert03.bpl [2021-10-22 12:05:34,219 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert03.bpl' [2021-10-22 12:05:34,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 12:05:34,248 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-22 12:05:34,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 12:05:34,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 12:05:34,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 12:05:34,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 12:05:34" (1/1) ... [2021-10-22 12:05:34,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 12:05:34" (1/1) ... [2021-10-22 12:05:34,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 12:05:34,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 12:05:34,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 12:05:34,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 12:05:34,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 12:05:34" (1/1) ... [2021-10-22 12:05:34,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 12:05:34" (1/1) ... [2021-10-22 12:05:34,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 12:05:34" (1/1) ... [2021-10-22 12:05:34,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 12:05:34" (1/1) ... [2021-10-22 12:05:34,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 12:05:34" (1/1) ... [2021-10-22 12:05:34,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 12:05:34" (1/1) ... [2021-10-22 12:05:34,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 12:05:34" (1/1) ... [2021-10-22 12:05:34,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 12:05:34,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 12:05:34,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 12:05:34,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 12:05:34,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 12:05:34" (1/1) ... [2021-10-22 12:05:34,301 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 12:05:34,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 12:05:34,326 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) [2021-10-22 12:05:34,327 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 [2021-10-22 12:05:34,353 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-10-22 12:05:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-10-22 12:05:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-10-22 12:05:34,354 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-10-22 12:05:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-10-22 12:05:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-10-22 12:05:34,354 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-22 12:05:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 12:05:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 12:05:34,355 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-22 12:05:34,505 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 12:05:34,505 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-22 12:05:34,505 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-10-22 12:05:34,507 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:05:34 BoogieIcfgContainer [2021-10-22 12:05:34,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 12:05:34,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 12:05:34,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 12:05:34,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 12:05:34,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 12:05:34" (1/2) ... [2021-10-22 12:05:34,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60775679 and model type bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:05:34, skipping insertion in model container [2021-10-22 12:05:34,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:05:34" (2/2) ... [2021-10-22 12:05:34,515 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert03.bpl [2021-10-22 12:05:34,518 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 12:05:34,518 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 12:05:34,518 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-22 12:05:34,518 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 12:05:34,554 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-22 12:05:34,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 12:05:34,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 12:05:34,614 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) [2021-10-22 12:05:34,615 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 [2021-10-22 12:05:34,641 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ServerThreadThread1of1ForFork0 ======== [2021-10-22 12:05:34,645 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-22 12:05:34,645 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-22 12:05:34,815 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-22 12:05:34,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 12:05:34,818 INFO L82 PathProgramCache]: Analyzing trace with hash 618014916, now seen corresponding path program 1 times [2021-10-22 12:05:34,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 12:05:34,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219244161] [2021-10-22 12:05:34,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 12:05:34,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 12:05:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 12:05:34,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 12:05:34,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 12:05:34,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219244161] [2021-10-22 12:05:34,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219244161] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 12:05:34,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 12:05:34,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 12:05:34,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498371403] [2021-10-22 12:05:34,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-22 12:05:34,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 12:05:34,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-22 12:05:34,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-22 12:05:34,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:34,956 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 12:05:34,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 12:05:34,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:35,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:35,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 12:05:35,003 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-22 12:05:35,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 12:05:35,003 INFO L82 PathProgramCache]: Analyzing trace with hash 2115766618, now seen corresponding path program 1 times [2021-10-22 12:05:35,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 12:05:35,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267951975] [2021-10-22 12:05:35,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 12:05:35,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 12:05:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 12:05:35,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 12:05:35,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 12:05:35,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267951975] [2021-10-22 12:05:35,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267951975] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 12:05:35,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 12:05:35,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-22 12:05:35,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209053331] [2021-10-22 12:05:35,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 12:05:35,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 12:05:35,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 12:05:35,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 12:05:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:35,066 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 12:05:35,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-10-22 12:05:35,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:35,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 12:05:35,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-22 12:05:35,160 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-22 12:05:35,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 12:05:35,161 INFO L82 PathProgramCache]: Analyzing trace with hash -628880383, now seen corresponding path program 1 times [2021-10-22 12:05:35,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 12:05:35,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720629750] [2021-10-22 12:05:35,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 12:05:35,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 12:05:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 12:05:35,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 12:05:35,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 12:05:35,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720629750] [2021-10-22 12:05:35,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720629750] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 12:05:35,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 12:05:35,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-22 12:05:35,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066339150] [2021-10-22 12:05:35,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-22 12:05:35,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 12:05:35,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-22 12:05:35,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-22 12:05:35,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:35,238 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 12:05:35,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-10-22 12:05:35,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:35,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 12:05:35,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:35,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:35,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 12:05:35,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:35,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-22 12:05:35,280 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-22 12:05:35,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 12:05:35,280 INFO L82 PathProgramCache]: Analyzing trace with hash -629059873, now seen corresponding path program 2 times [2021-10-22 12:05:35,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 12:05:35,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353729627] [2021-10-22 12:05:35,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 12:05:35,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 12:05:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 12:05:35,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 12:05:35,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 12:05:35,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353729627] [2021-10-22 12:05:35,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353729627] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 12:05:35,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 12:05:35,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-22 12:05:35,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725705345] [2021-10-22 12:05:35,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-22 12:05:35,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 12:05:35,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-22 12:05:35,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-22 12:05:35,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:35,362 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 12:05:35,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-10-22 12:05:35,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:35,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 12:05:35,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:35,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:35,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:35,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 12:05:35,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:35,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 12:05:35,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-22 12:05:35,498 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-22 12:05:35,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 12:05:35,498 INFO L82 PathProgramCache]: Analyzing trace with hash 2090764111, now seen corresponding path program 1 times [2021-10-22 12:05:35,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 12:05:35,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274046294] [2021-10-22 12:05:35,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 12:05:35,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 12:05:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 12:05:35,611 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-22 12:05:35,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 12:05:35,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274046294] [2021-10-22 12:05:35,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274046294] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 12:05:35,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551654320] [2021-10-22 12:05:35,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 12:05:35,612 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 12:05:35,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 12:05:35,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 12:05:35,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-22 12:05:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 12:05:35,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-22 12:05:35,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 12:05:35,897 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-22 12:05:35,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551654320] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 12:05:35,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 12:05:35,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-22 12:05:35,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114709170] [2021-10-22 12:05:35,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-22 12:05:35,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 12:05:35,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-22 12:05:35,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-22 12:05:35,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:35,900 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 12:05:35,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 12:05:35,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:35,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 12:05:35,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:35,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 12:05:35,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:35,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:35,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 12:05:35,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:35,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 12:05:35,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 12:05:35,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-22 12:05:36,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 12:05:36,192 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-22 12:05:36,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 12:05:36,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1927103961, now seen corresponding path program 2 times [2021-10-22 12:05:36,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 12:05:36,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467937470] [2021-10-22 12:05:36,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 12:05:36,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 12:05:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 12:05:36,327 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-22 12:05:36,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 12:05:36,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467937470] [2021-10-22 12:05:36,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467937470] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 12:05:36,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053191011] [2021-10-22 12:05:36,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 12:05:36,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 12:05:36,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 12:05:36,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 12:05:36,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-22 12:05:36,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 12:05:36,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 12:05:36,388 WARN L261 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-22 12:05:36,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 12:05:36,629 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-22 12:05:36,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053191011] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 12:05:36,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 12:05:36,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 12 [2021-10-22 12:05:36,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630162552] [2021-10-22 12:05:36,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-22 12:05:36,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 12:05:36,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-22 12:05:36,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-10-22 12:05:36,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:36,634 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 12:05:36,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-10-22 12:05:36,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:36,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 12:05:36,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:36,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 12:05:36,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 12:05:36,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:36,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:36,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 12:05:36,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:36,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 12:05:36,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 12:05:36,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 12:05:36,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-22 12:05:37,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 12:05:37,176 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-22 12:05:37,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 12:05:37,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1844330906, now seen corresponding path program 1 times [2021-10-22 12:05:37,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 12:05:37,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327840406] [2021-10-22 12:05:37,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 12:05:37,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 12:05:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 12:05:37,438 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-10-22 12:05:37,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 12:05:37,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327840406] [2021-10-22 12:05:37,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327840406] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 12:05:37,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790137467] [2021-10-22 12:05:37,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 12:05:37,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 12:05:37,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 12:05:37,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 12:05:37,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-22 12:05:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 12:05:37,545 WARN L261 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 81 conjunts are in the unsatisfiable core [2021-10-22 12:05:37,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 12:05:37,875 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-10-22 12:05:37,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790137467] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 12:05:37,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 12:05:37,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-22 12:05:37,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895432624] [2021-10-22 12:05:37,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-22 12:05:37,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 12:05:37,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-22 12:05:37,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-22 12:05:37,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:37,876 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 12:05:37,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2021-10-22 12:05:37,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:37,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 12:05:37,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:37,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 12:05:37,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 12:05:37,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 12:05:37,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:37,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:37,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 12:05:37,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:37,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 12:05:37,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 12:05:37,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 12:05:37,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 12:05:38,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-22 12:05:38,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 12:05:38,203 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-22 12:05:38,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 12:05:38,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1055111577, now seen corresponding path program 2 times [2021-10-22 12:05:38,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 12:05:38,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071359693] [2021-10-22 12:05:38,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 12:05:38,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 12:05:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 12:05:38,436 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 56 proven. 15 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-22 12:05:38,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 12:05:38,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071359693] [2021-10-22 12:05:38,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071359693] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 12:05:38,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964095556] [2021-10-22 12:05:38,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 12:05:38,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 12:05:38,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 12:05:38,448 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) [2021-10-22 12:05:38,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-22 12:05:38,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 12:05:38,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 12:05:38,576 WARN L261 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 101 conjunts are in the unsatisfiable core [2021-10-22 12:05:38,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 12:05:38,984 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-22 12:05:38,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964095556] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 12:05:38,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 12:05:38,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-10-22 12:05:38,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952649691] [2021-10-22 12:05:38,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-22 12:05:38,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 12:05:38,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-22 12:05:38,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2021-10-22 12:05:38,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:38,986 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 12:05:38,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 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) [2021-10-22 12:05:38,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:38,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 12:05:38,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:38,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 12:05:38,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 12:05:38,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 12:05:38,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 12:05:38,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 12:05:39,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:39,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 12:05:39,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 12:05:39,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 12:05:39,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 12:05:39,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 12:05:39,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 12:05:39,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 12:05:39,202 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ServerThreadErr0ASSERT_VIOLATIONASSERT [2021-10-22 12:05:39,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-22 12:05:39,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 12:05:39,420 INFO L308 ceAbstractionStarter]: Result for error location ServerThreadThread1of1ForFork0 was SAFE (1/2) [2021-10-22 12:05:39,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 12:05:39,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 12:05:39,423 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-22 12:05:39,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2021-10-22 12:05:39,426 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 12:05:39,426 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-22 12:05:39,426 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-22 12:05:39,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-22 12:05:39,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-22 12:05:39,463 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-22 12:05:39,463 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-22 12:05:39,463 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE (2/2) [2021-10-22 12:05:39,464 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 12:05:39,464 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 12:05:39,466 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:05:39 BasicIcfg [2021-10-22 12:05:39,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 12:05:39,467 INFO L168 Benchmark]: Toolchain (without parser) took 5218.26 ms. Allocated memory was 192.9 MB in the beginning and 304.1 MB in the end (delta: 111.1 MB). Free memory was 152.2 MB in the beginning and 110.0 MB in the end (delta: 42.2 MB). Peak memory consumption was 154.3 MB. Max. memory is 8.0 GB. [2021-10-22 12:05:39,467 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 192.9 MB. Free memory was 153.3 MB in the beginning and 153.3 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 12:05:39,467 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.10 ms. Allocated memory is still 192.9 MB. Free memory was 152.1 MB in the beginning and 150.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-22 12:05:39,468 INFO L168 Benchmark]: Boogie Preprocessor took 9.29 ms. Allocated memory is still 192.9 MB. Free memory was 150.3 MB in the beginning and 149.4 MB in the end (delta: 889.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 12:05:39,468 INFO L168 Benchmark]: RCFGBuilder took 212.45 ms. Allocated memory is still 192.9 MB. Free memory was 149.4 MB in the beginning and 136.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-22 12:05:39,468 INFO L168 Benchmark]: TraceAbstraction took 4958.09 ms. Allocated memory was 192.9 MB in the beginning and 304.1 MB in the end (delta: 111.1 MB). Free memory was 136.1 MB in the beginning and 110.0 MB in the end (delta: 26.1 MB). Peak memory consumption was 138.6 MB. Max. memory is 8.0 GB. [2021-10-22 12:05:39,469 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 0.09 ms. Allocated memory is still 192.9 MB. Free memory was 153.3 MB in the beginning and 153.3 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 34.10 ms. Allocated memory is still 192.9 MB. Free memory was 152.1 MB in the beginning and 150.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.29 ms. Allocated memory is still 192.9 MB. Free memory was 150.3 MB in the beginning and 149.4 MB in the end (delta: 889.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 212.45 ms. Allocated memory is still 192.9 MB. Free memory was 149.4 MB in the beginning and 136.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4958.09 ms. Allocated memory was 192.9 MB in the beginning and 304.1 MB in the end (delta: 111.1 MB). Free memory was 136.1 MB in the beginning and 110.0 MB in the end (delta: 26.1 MB). Peak memory consumption was 138.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 36327, positive: 25568, positive conditional: 25189, positive unconditional: 379, negative: 10759, negative conditional: 10723, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 32500, positive: 25568, positive conditional: 0, positive unconditional: 25568, negative: 6932, negative conditional: 0, negative unconditional: 6932, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 432, positive: 391, positive conditional: 0, positive unconditional: 391, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 432, positive: 367, positive conditional: 0, positive unconditional: 367, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 200, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 128, negative conditional: 0, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 32500, positive: 25177, positive conditional: 0, positive unconditional: 25177, negative: 6891, negative conditional: 0, negative unconditional: 6891, unknown: 432, unknown conditional: 0, unknown unconditional: 432] , Statistics on independence cache: Total cache size (in pairs): 432, Positive cache size: 391, Positive conditional cache size: 0, Positive unconditional cache size: 391, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41, Independence queries for same thread: 3827 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 276, Number of persistent set computation: 268, Number of trivial persistent sets: 237, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 36327, positive: 25568, positive conditional: 25189, positive unconditional: 379, negative: 10759, negative conditional: 10723, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 32500, positive: 25568, positive conditional: 0, positive unconditional: 25568, negative: 6932, negative conditional: 0, negative unconditional: 6932, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 432, positive: 391, positive conditional: 0, positive unconditional: 391, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 432, positive: 367, positive conditional: 0, positive unconditional: 367, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 200, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 128, negative conditional: 0, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 32500, positive: 25177, positive conditional: 0, positive unconditional: 25177, negative: 6891, negative conditional: 0, negative unconditional: 6891, unknown: 432, unknown conditional: 0, unknown unconditional: 432] , Statistics on independence cache: Total cache size (in pairs): 432, Positive cache size: 391, Positive conditional cache size: 0, Positive unconditional cache size: 391, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41, Independence queries for same thread: 3827 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 268, positive: 253, positive conditional: 18, positive unconditional: 235, negative: 15, negative conditional: 3, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 265, positive: 253, positive conditional: 0, positive unconditional: 253, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 247, positive: 235, positive conditional: 0, positive unconditional: 235, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 247, positive: 226, positive conditional: 0, positive unconditional: 226, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 265, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 247, unknown conditional: 0, unknown unconditional: 247] , Statistics on independence cache: Total cache size (in pairs): 247, Positive cache size: 235, Positive conditional cache size: 0, Positive unconditional cache size: 235, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Independence queries for same thread: 3 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 34, Number of persistent set computation: 8, Number of trivial persistent sets: 5, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 268, positive: 253, positive conditional: 18, positive unconditional: 235, negative: 15, negative conditional: 3, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 265, positive: 253, positive conditional: 0, positive unconditional: 253, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 247, positive: 235, positive conditional: 0, positive unconditional: 235, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 247, positive: 226, positive conditional: 0, positive unconditional: 226, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 265, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 247, unknown conditional: 0, unknown unconditional: 247] , Statistics on independence cache: Total cache size (in pairs): 247, Positive cache size: 235, Positive conditional cache size: 0, Positive unconditional cache size: 235, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Independence queries for same thread: 3 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 72]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ServerThreadThread1of1ForFork0 with 1 thread instances CFG has 7 procedures, 42 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 4809.4ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.7ms, PartialOrderReductionTime: 1181.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.4ms SsaConstructionTime, 160.8ms SatisfiabilityAnalysisTime, 2090.5ms InterpolantComputationTime, 387 NumberOfCodeBlocks, 387 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 375 ConstructedInterpolants, 0 QuantifiedInterpolants, 2180 SizeOfPredicates, 2 NumberOfNonLiveVariables, 394 ConjunctsInSsa, 242 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 311/536 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 42 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 41.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.5ms, PartialOrderReductionTime: 34.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms 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, 0.0ms 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! [2021-10-22 12:05:39,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Forceful destruction successful, exit code 0 [2021-10-22 12:05:39,707 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 [2021-10-22 12:05:39,907 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...