/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-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert08.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 21:37:51,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 21:37:51,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 21:37:51,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-21 21:37:51,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-21 21:37:51,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-21 21:37:51,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-21 21:37:51,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-21 21:37:51,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-21 21:37:51,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-21 21:37:51,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-21 21:37:51,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-21 21:37:51,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-21 21:37:51,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-21 21:37:51,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-21 21:37:51,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-21 21:37:51,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-21 21:37:51,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-21 21:37:51,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-21 21:37:51,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-21 21:37:51,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-21 21:37:51,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-21 21:37:51,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-21 21:37:51,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-21 21:37:51,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-21 21:37:51,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-21 21:37:51,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-21 21:37:51,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-21 21:37:51,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-21 21:37:51,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-21 21:37:51,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-21 21:37:51,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-21 21:37:51,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-21 21:37:51,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-21 21:37:51,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-21 21:37:51,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-21 21:37:51,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-21 21:37:51,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-21 21:37:51,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 21:37:51,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 21:37:51,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 21:37:51,315 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-NewStatesSleep-NoLbe.epf [2021-08-21 21:37:51,348 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 21:37:51,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 21:37:51,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-21 21:37:51,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-21 21:37:51,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 21:37:51,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 21:37:51,352 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 21:37:51,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 21:37:51,353 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 21:37:51,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 21:37:51,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 21:37:51,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 21:37:51,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 21:37:51,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 21:37:51,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 21:37:51,354 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 21:37:51,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 21:37:51,354 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 21:37:51,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 21:37:51,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 21:37:51,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 21:37:51,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 21:37:51,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 21:37:51,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 21:37:51,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 21:37:51,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 21:37:51,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 21:37:51,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 21:37:51,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 21:37:51,356 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 21:37:51,356 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-21 21:37:51,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 21:37:51,357 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-08-21 21:37:51,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 21:37:51,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 21:37:51,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 21:37:51,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 21:37:51,699 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-21 21:37:51,700 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-21 21:37:51,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert08.bpl [2021-08-21 21:37:51,701 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert08.bpl' [2021-08-21 21:37:51,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 21:37:51,721 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-21 21:37:51,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 21:37:51,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 21:37:51,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 21:37:51,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 09:37:51" (1/1) ... [2021-08-21 21:37:51,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 09:37:51" (1/1) ... [2021-08-21 21:37:51,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 21:37:51,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 21:37:51,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 21:37:51,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 21:37:51,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 09:37:51" (1/1) ... [2021-08-21 21:37:51,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 09:37:51" (1/1) ... [2021-08-21 21:37:51,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 09:37:51" (1/1) ... [2021-08-21 21:37:51,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 09:37:51" (1/1) ... [2021-08-21 21:37:51,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 09:37:51" (1/1) ... [2021-08-21 21:37:51,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 09:37:51" (1/1) ... [2021-08-21 21:37:51,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 09:37:51" (1/1) ... [2021-08-21 21:37:51,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 21:37:51,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 21:37:51,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 21:37:51,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 21:37:51,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 09:37:51" (1/1) ... [2021-08-21 21:37:51,783 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 21:37:51,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 21:37:51,803 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) [2021-08-21 21:37:51,805 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 [2021-08-21 21:37:51,843 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-21 21:37:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-21 21:37:51,844 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-21 21:37:51,844 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-21 21:37:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-21 21:37:51,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-21 21:37:51,844 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-21 21:37:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 21:37:51,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 21:37:51,847 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 21:37:52,080 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 21:37:52,080 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-21 21:37:52,081 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-08-21 21:37:52,082 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 09:37:52 BoogieIcfgContainer [2021-08-21 21:37:52,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 21:37:52,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 21:37:52,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 21:37:52,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 21:37:52,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 09:37:51" (1/2) ... [2021-08-21 21:37:52,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702edece and model type bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 09:37:52, skipping insertion in model container [2021-08-21 21:37:52,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 09:37:52" (2/2) ... [2021-08-21 21:37:52,089 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert08.bpl [2021-08-21 21:37:52,093 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 21:37:52,093 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 21:37:52,094 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 21:37:52,094 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 21:37:52,153 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 21:37:52,212 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-21 21:37:52,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 21:37:52,249 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) [2021-08-21 21:37:52,275 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 [2021-08-21 21:37:52,290 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 21:37:52,300 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 [2021-08-21 21:37:52,300 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-08-21 21:37:52,363 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 21:37:52,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 21:37:52,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1493695156, now seen corresponding path program 1 times [2021-08-21 21:37:52,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 21:37:52,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588576032] [2021-08-21 21:37:52,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 21:37:52,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 21:37:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 21:37:52,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 21:37:52,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 21:37:52,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588576032] [2021-08-21 21:37:52,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588576032] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 21:37:52,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 21:37:52,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-21 21:37:52,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715519778] [2021-08-21 21:37:52,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-21 21:37:52,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 21:37:52,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-21 21:37:52,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-21 21:37:52,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 21:37:52,617 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-21 21:37:52,618 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) [2021-08-21 21:37:52,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-21 21:37:58,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:37:58,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 21:37:58,676 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 21:37:58,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 21:37:58,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1836008372, now seen corresponding path program 1 times [2021-08-21 21:37:58,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 21:37:58,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368665185] [2021-08-21 21:37:58,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 21:37:58,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 21:37:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 21:37:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 21:37:58,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 21:37:58,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368665185] [2021-08-21 21:37:58,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368665185] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 21:37:58,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 21:37:58,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 21:37:58,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829327594] [2021-08-21 21:37:58,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 21:37:58,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 21:37:58,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 21:37:58,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 21:37:58,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 21:37:58,706 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-21 21:37:58,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-08-21 21:37:58,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:37:58,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-21 21:37:59,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:37:59,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 21:37:59,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 21:37:59,198 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 21:37:59,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 21:37:59,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1994925627, now seen corresponding path program 1 times [2021-08-21 21:37:59,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 21:37:59,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59387086] [2021-08-21 21:37:59,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 21:37:59,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 21:37:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 21:37:59,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 21:37:59,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 21:37:59,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59387086] [2021-08-21 21:37:59,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59387086] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 21:37:59,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 21:37:59,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 21:37:59,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038934128] [2021-08-21 21:37:59,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 21:37:59,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 21:37:59,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 21:37:59,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-21 21:37:59,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 21:37:59,312 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-21 21:37:59,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 21:37:59,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:37:59,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 21:37:59,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-21 21:37:59,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:37:59,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 21:37:59,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:37:59,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 21:37:59,367 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 21:37:59,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 21:37:59,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1995015837, now seen corresponding path program 2 times [2021-08-21 21:37:59,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 21:37:59,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742112221] [2021-08-21 21:37:59,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 21:37:59,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 21:37:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 21:37:59,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 21:37:59,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 21:37:59,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742112221] [2021-08-21 21:37:59,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742112221] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 21:37:59,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 21:37:59,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 21:37:59,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681435518] [2021-08-21 21:37:59,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 21:37:59,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 21:37:59,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 21:37:59,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-21 21:37:59,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 21:37:59,478 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-21 21:37:59,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 21:37:59,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:37:59,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 21:37:59,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:37:59,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-21 21:37:59,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:37:59,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 21:37:59,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:37:59,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 21:37:59,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 21:37:59,648 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 21:37:59,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 21:37:59,653 INFO L82 PathProgramCache]: Analyzing trace with hash -913772352, now seen corresponding path program 1 times [2021-08-21 21:37:59,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 21:37:59,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207185930] [2021-08-21 21:37:59,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 21:37:59,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 21:37:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 21:37:59,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-21 21:37:59,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 21:37:59,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207185930] [2021-08-21 21:37:59,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207185930] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-21 21:37:59,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077480394] [2021-08-21 21:37:59,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 21:37:59,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-21 21:37:59,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 21:37:59,796 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) [2021-08-21 21:37:59,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-21 21:37:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 21:37:59,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-21 21:37:59,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-21 21:38:00,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-21 21:38:00,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077480394] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-21 21:38:00,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-21 21:38:00,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-21 21:38:00,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412808294] [2021-08-21 21:38:00,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 21:38:00,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 21:38:00,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 21:38:00,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 21:38:00,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 21:38:00,101 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-21 21:38:00,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-08-21 21:38:00,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:38:00,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 21:38:00,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:38:00,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-21 21:38:00,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-21 21:38:00,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:38:00,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 21:38:00,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:38:00,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 21:38:00,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-21 21:38:00,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-21 21:38:00,685 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 [2021-08-21 21:38:00,685 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 21:38:00,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 21:38:00,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1602348990, now seen corresponding path program 1 times [2021-08-21 21:38:00,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 21:38:00,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13153168] [2021-08-21 21:38:00,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 21:38:00,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 21:38:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 21:38:00,827 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-21 21:38:00,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 21:38:00,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13153168] [2021-08-21 21:38:00,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13153168] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 21:38:00,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 21:38:00,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 21:38:00,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820363724] [2021-08-21 21:38:00,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 21:38:00,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 21:38:00,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 21:38:00,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-21 21:38:00,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 21:38:00,831 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-21 21:38:00,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2021-08-21 21:38:00,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:38:00,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-21 21:38:00,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:38:00,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-21 21:38:00,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-21 21:38:00,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-21 21:38:19,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:38:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 21:38:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 21:38:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 21:38:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-21 21:38:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 21:38:19,522 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ServerThreadErr0ASSERT_VIOLATIONASSERT [2021-08-21 21:38:19,522 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 21:38:19,522 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 21:38:19,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 21:38:19,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-21 21:38:19,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-21 21:38:19,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-21 21:38:19,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION [2021-08-21 21:38:19,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATION [2021-08-21 21:38:19,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8INUSE_VIOLATION [2021-08-21 21:38:19,524 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ServerThreadErr0ASSERT_VIOLATIONASSERT [2021-08-21 21:38:19,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 21:38:19,534 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 21:38:19,534 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 21:38:19,536 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 09:38:19 BasicIcfg [2021-08-21 21:38:19,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 21:38:19,538 INFO L168 Benchmark]: Toolchain (without parser) took 27816.07 ms. Allocated memory was 196.1 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 176.8 MB in the beginning and 6.4 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-08-21 21:38:19,538 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 196.1 MB. Free memory is still 177.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 21:38:19,539 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.50 ms. Allocated memory is still 196.1 MB. Free memory was 176.8 MB in the beginning and 175.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-21 21:38:19,541 INFO L168 Benchmark]: Boogie Preprocessor took 12.31 ms. Allocated memory is still 196.1 MB. Free memory was 174.9 MB in the beginning and 174.0 MB in the end (delta: 910.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 21:38:19,544 INFO L168 Benchmark]: RCFGBuilder took 310.07 ms. Allocated memory is still 196.1 MB. Free memory was 174.0 MB in the beginning and 160.6 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-21 21:38:19,545 INFO L168 Benchmark]: TraceAbstraction took 27452.19 ms. Allocated memory was 196.1 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 160.2 MB in the beginning and 6.4 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-08-21 21:38:19,549 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 0.13 ms. Allocated memory is still 196.1 MB. Free memory is still 177.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 36.50 ms. Allocated memory is still 196.1 MB. Free memory was 176.8 MB in the beginning and 175.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.31 ms. Allocated memory is still 196.1 MB. Free memory was 174.9 MB in the beginning and 174.0 MB in the end (delta: 910.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 310.07 ms. Allocated memory is still 196.1 MB. Free memory was 174.0 MB in the beginning and 160.6 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 27452.19 ms. Allocated memory was 196.1 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 160.2 MB in the beginning and 6.4 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6893277, positive: 6269540, positive conditional: 6269540, positive unconditional: 0, negative: 623737, negative conditional: 623737, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6626055, positive: 6269540, positive conditional: 6269540, positive unconditional: 0, negative: 356515, negative conditional: 356515, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6626055, positive: 6269540, positive conditional: 6269540, positive unconditional: 0, negative: 356515, negative conditional: 356515, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7035912, positive: 6269540, positive conditional: 4419104, positive unconditional: 1850436, negative: 766372, negative conditional: 409857, negative unconditional: 356515, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7035912, positive: 6269540, positive conditional: 3663613, positive unconditional: 2605927, negative: 766372, negative conditional: 395431, negative unconditional: 370941, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7035912, positive: 6269540, positive conditional: 3663613, positive unconditional: 2605927, negative: 766372, negative conditional: 395431, negative unconditional: 370941, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2042, positive: 1485, positive conditional: 975, positive unconditional: 510, negative: 557, negative conditional: 458, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2042, positive: 943, positive conditional: 0, positive unconditional: 943, negative: 1099, negative conditional: 0, negative unconditional: 1099, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1099, positive: 542, positive conditional: 492, positive unconditional: 50, negative: 557, negative conditional: 458, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1801, positive: 1066, positive conditional: 912, positive unconditional: 153, negative: 736, negative conditional: 528, negative unconditional: 207, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7035912, positive: 6268055, positive conditional: 3662638, positive unconditional: 2605417, negative: 765815, negative conditional: 394973, negative unconditional: 370842, unknown: 2042, unknown conditional: 1433, unknown unconditional: 609] , Statistics on independence cache: Total cache size (in pairs): 2042, Positive cache size: 1485, Positive conditional cache size: 975, Positive unconditional cache size: 510, Negative cache size: 557, Negative conditional cache size: 458, Negative unconditional cache size: 99, Eliminated conditions: 769917, Maximal queried relation: 6, Independence queries for same thread: 267222 - 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: 77]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 12 procedures, 67 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 27320.4ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.5ms, PartialOrderReductionTime: 25866.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 33, 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: 16.1ms SsaConstructionTime, 86.1ms SatisfiabilityAnalysisTime, 801.8ms InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 188 ConstructedInterpolants, 0 QuantifiedInterpolants, 965 SizeOfPredicates, 0 NumberOfNonLiveVariables, 64 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 15/17 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 21:38:19,585 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 [2021-08-21 21:38:19,798 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...