/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect03.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 13:37:48,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 13:37:48,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 13:37:48,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-21 13:37:48,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-21 13:37:48,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-21 13:37:48,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-21 13:37:48,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-21 13:37:48,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-21 13:37:48,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-21 13:37:48,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-21 13:37:48,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-21 13:37:48,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-21 13:37:48,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-21 13:37:48,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-21 13:37:48,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-21 13:37:48,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-21 13:37:48,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-21 13:37:48,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-21 13:37:48,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-21 13:37:48,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-21 13:37:48,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-21 13:37:48,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-21 13:37:48,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-21 13:37:48,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-21 13:37:48,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-21 13:37:48,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-21 13:37:48,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-21 13:37:48,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-21 13:37:48,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-21 13:37:48,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-21 13:37:48,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-21 13:37:48,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-21 13:37:48,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-21 13:37:48,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-21 13:37:48,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-21 13:37:48,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-21 13:37:48,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-21 13:37:48,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 13:37:48,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 13:37:48,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 13:37:48,220 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-FA-NoLbe.epf [2021-08-21 13:37:48,248 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 13:37:48,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 13:37:48,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-21 13:37:48,248 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-21 13:37:48,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 13:37:48,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 13:37:48,251 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 13:37:48,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 13:37:48,251 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 13:37:48,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 13:37:48,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 13:37:48,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 13:37:48,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 13:37:48,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 13:37:48,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 13:37:48,253 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 13:37:48,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 13:37:48,253 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 13:37:48,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 13:37:48,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 13:37:48,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 13:37:48,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 13:37:48,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 13:37:48,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 13:37:48,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 13:37:48,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 13:37:48,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 13:37:48,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 13:37:48,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 13:37:48,254 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 13:37:48,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 13:37:48,255 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 13:37:48,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 13:37:48,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 13:37:48,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 13:37:48,573 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-21 13:37:48,593 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-21 13:37:48,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect03.bpl [2021-08-21 13:37:48,594 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect03.bpl' [2021-08-21 13:37:48,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 13:37:48,638 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-21 13:37:48,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 13:37:48,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 13:37:48,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 13:37:48,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:48" (1/1) ... [2021-08-21 13:37:48,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:48" (1/1) ... [2021-08-21 13:37:48,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 13:37:48,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 13:37:48,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 13:37:48,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 13:37:48,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:48" (1/1) ... [2021-08-21 13:37:48,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:48" (1/1) ... [2021-08-21 13:37:48,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:48" (1/1) ... [2021-08-21 13:37:48,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:48" (1/1) ... [2021-08-21 13:37:48,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:48" (1/1) ... [2021-08-21 13:37:48,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:48" (1/1) ... [2021-08-21 13:37:48,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:48" (1/1) ... [2021-08-21 13:37:48,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 13:37:48,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 13:37:48,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 13:37:48,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 13:37:48,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:48" (1/1) ... [2021-08-21 13:37:48,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 13:37:48,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 13:37:48,764 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 13:37:48,768 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 13:37:48,817 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-21 13:37:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-21 13:37:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-21 13:37:48,817 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-21 13:37:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-21 13:37:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-21 13:37:48,817 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-21 13:37:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-21 13:37:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-21 13:37:48,818 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-21 13:37:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 13:37:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 13:37:48,819 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 13:37:49,045 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 13:37:49,046 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-21 13:37:49,047 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:37:49 BoogieIcfgContainer [2021-08-21 13:37:49,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 13:37:49,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 13:37:49,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 13:37:49,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 13:37:49,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:48" (1/2) ... [2021-08-21 13:37:49,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566b9b32 and model type bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:37:49, skipping insertion in model container [2021-08-21 13:37:49,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:37:49" (2/2) ... [2021-08-21 13:37:49,052 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect03.bpl [2021-08-21 13:37:49,071 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 13:37:49,072 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 13:37:49,072 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 13:37:49,072 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 13:37:49,114 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 13:37:49,182 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 13:37:49,187 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=FINITE_AUTOMATA, 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 13:37:49,187 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-21 13:37:49,206 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 32 transitions, 84 flow [2021-08-21 13:37:49,333 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1151 states, 1149 states have (on average 4.1827676240208875) internal successors, (4806), 1150 states have internal predecessors, (4806), 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 13:37:49,337 INFO L276 IsEmpty]: Start isEmpty. Operand has 1151 states, 1149 states have (on average 4.1827676240208875) internal successors, (4806), 1150 states have internal predecessors, (4806), 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 13:37:49,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-21 13:37:49,343 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:37:49,343 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:37:49,343 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-21 13:37:49,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:37:49,347 INFO L82 PathProgramCache]: Analyzing trace with hash -891799580, now seen corresponding path program 1 times [2021-08-21 13:37:49,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:37:49,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232348465] [2021-08-21 13:37:49,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:37:49,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:37:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:37:49,538 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 13:37:49,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:37:49,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232348465] [2021-08-21 13:37:49,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232348465] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:37:49,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:37:49,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-21 13:37:49,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553732871] [2021-08-21 13:37:49,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 13:37:49,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:37:49,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 13:37:49,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 13:37:49,559 INFO L87 Difference]: Start difference. First operand has 1151 states, 1149 states have (on average 4.1827676240208875) internal successors, (4806), 1150 states have internal predecessors, (4806), 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) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 13:37:49,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:37:49,611 INFO L93 Difference]: Finished difference Result 1309 states and 5335 transitions. [2021-08-21 13:37:49,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 13:37:49,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2021-08-21 13:37:49,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:37:49,635 INFO L225 Difference]: With dead ends: 1309 [2021-08-21 13:37:49,635 INFO L226 Difference]: Without dead ends: 973 [2021-08-21 13:37:49,637 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 13:37:49,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2021-08-21 13:37:49,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 973. [2021-08-21 13:37:49,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 972 states have (on average 4.110082304526749) internal successors, (3995), 972 states have internal predecessors, (3995), 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 13:37:49,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 3995 transitions. [2021-08-21 13:37:49,726 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 3995 transitions. Word has length 9 [2021-08-21 13:37:49,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:37:49,727 INFO L470 AbstractCegarLoop]: Abstraction has 973 states and 3995 transitions. [2021-08-21 13:37:49,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 13:37:49,728 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 3995 transitions. [2021-08-21 13:37:49,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-21 13:37:49,734 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:37:49,734 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:37:49,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 13:37:49,735 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-21 13:37:49,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:37:49,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1513969626, now seen corresponding path program 1 times [2021-08-21 13:37:49,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:37:49,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691846411] [2021-08-21 13:37:49,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:37:49,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:37:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:37:49,768 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 13:37:49,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:37:49,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691846411] [2021-08-21 13:37:49,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691846411] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:37:49,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:37:49,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 13:37:49,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704503047] [2021-08-21 13:37:49,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 13:37:49,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:37:49,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 13:37:49,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 13:37:49,773 INFO L87 Difference]: Start difference. First operand 973 states and 3995 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13:37:49,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:37:49,792 INFO L93 Difference]: Finished difference Result 973 states and 3436 transitions. [2021-08-21 13:37:49,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 13:37:49,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) Word has length 13 [2021-08-21 13:37:49,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:37:49,796 INFO L225 Difference]: With dead ends: 973 [2021-08-21 13:37:49,797 INFO L226 Difference]: Without dead ends: 598 [2021-08-21 13:37:49,797 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 13:37:49,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2021-08-21 13:37:49,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2021-08-21 13:37:49,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 597 states have (on average 3.4170854271356785) internal successors, (2040), 597 states have internal predecessors, (2040), 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 13:37:49,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 2040 transitions. [2021-08-21 13:37:49,811 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 2040 transitions. Word has length 13 [2021-08-21 13:37:49,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:37:49,812 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 2040 transitions. [2021-08-21 13:37:49,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13:37:49,812 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 2040 transitions. [2021-08-21 13:37:49,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-21 13:37:49,814 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:37:49,814 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:37:49,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 13:37:49,815 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-21 13:37:49,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:37:49,816 INFO L82 PathProgramCache]: Analyzing trace with hash -943309914, now seen corresponding path program 2 times [2021-08-21 13:37:49,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:37:49,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995139282] [2021-08-21 13:37:49,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:37:49,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:37:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-21 13:37:49,836 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-21 13:37:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-21 13:37:49,855 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-21 13:37:49,856 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-21 13:37:49,856 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 13:37:49,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 13:37:49,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 13:37:49,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 13:37:49,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 13:37:49,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-21 13:37:49,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 13:37:49,863 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 13:37:49,863 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 13:37:49,881 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 01:37:49 BasicIcfg [2021-08-21 13:37:49,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 13:37:49,883 INFO L168 Benchmark]: Toolchain (without parser) took 1243.67 ms. Allocated memory is still 190.8 MB. Free memory was 170.5 MB in the beginning and 104.6 MB in the end (delta: 65.9 MB). Peak memory consumption was 67.5 MB. Max. memory is 8.0 GB. [2021-08-21 13:37:49,884 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 190.8 MB. Free memory is still 171.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 13:37:49,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.37 ms. Allocated memory is still 190.8 MB. Free memory was 170.3 MB in the beginning and 168.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 13:37:49,887 INFO L168 Benchmark]: Boogie Preprocessor took 11.60 ms. Allocated memory is still 190.8 MB. Free memory was 168.5 MB in the beginning and 167.7 MB in the end (delta: 809.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 13:37:49,887 INFO L168 Benchmark]: RCFGBuilder took 322.72 ms. Allocated memory is still 190.8 MB. Free memory was 167.5 MB in the beginning and 153.1 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-21 13:37:49,888 INFO L168 Benchmark]: TraceAbstraction took 832.69 ms. Allocated memory is still 190.8 MB. Free memory was 152.7 MB in the beginning and 104.6 MB in the end (delta: 48.1 MB). Peak memory consumption was 49.7 MB. Max. memory is 8.0 GB. [2021-08-21 13:37:49,889 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 0.11 ms. Allocated memory is still 190.8 MB. Free memory is still 171.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 56.37 ms. Allocated memory is still 190.8 MB. Free memory was 170.3 MB in the beginning and 168.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.60 ms. Allocated memory is still 190.8 MB. Free memory was 168.5 MB in the beginning and 167.7 MB in the end (delta: 809.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 322.72 ms. Allocated memory is still 190.8 MB. Free memory was 167.5 MB in the beginning and 153.1 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 832.69 ms. Allocated memory is still 190.8 MB. Free memory was 152.7 MB in the beginning and 104.6 MB in the end (delta: 48.1 MB). Peak memory consumption was 49.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - CounterExampleResult [Line: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L14] 0 pendingIo := 1; VAL [pendingIo=1] [L15] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L16] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L17] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 1 DeviceThreadWithAssert(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L58] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L80] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L90] 1 pendingIo := pendingIo - 1; [L91] COND TRUE 1 pendingIo == 0 [L92] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L82] 1 assume stoppingEvent; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L83] 1 stopped := true; VAL [pendingIo=0, stopped=true, stoppingEvent=true, stoppingFlag=true] [L59] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L36] 2 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - UnprovableResult [Line: 19]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 21]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 8 procedures, 50 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 680.1ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 17.2ms, AutomataDifference: 118.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 145.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 68 SDtfs, 32 SDslu, 35 SDs, 0 SdLazy, 7 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1151occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 95.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.5ms SsaConstructionTime, 22.1ms SatisfiabilityAnalysisTime, 91.2ms InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-21 13:37:49,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...