/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-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct03.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 19:00:50,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 19:00:50,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 19:00:50,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 19:00:50,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-21 19:00:50,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-21 19:00:50,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-21 19:00:50,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-21 19:00:50,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-21 19:00:50,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-21 19:00:50,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-21 19:00:50,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-21 19:00:50,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-21 19:00:50,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-21 19:00:50,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-21 19:00:50,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-21 19:00:50,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-21 19:00:50,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 19:00:50,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 19:00:50,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 19:00:50,486 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-Delay.epf [2021-08-21 19:00:50,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 19:00:50,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 19:00:50,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 19:00:50,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 19:00:50,508 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 19:00:50,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 19:00:50,508 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 19:00:50,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 19:00:50,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 19:00:50,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 19:00:50,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 19:00:50,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 19:00:50,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 19:00:50,510 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 19:00:50,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 19:00:50,510 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 19:00:50,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 19:00:50,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 19:00:50,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 19:00:50,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 19:00:50,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 19:00:50,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:00:50,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 19:00:50,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 19:00:50,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 19:00:50,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 19:00:50,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 19:00:50,512 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 19:00:50,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 19:00:50,512 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 19:00:50,513 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 19:00:50,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 19:00:50,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 19:00:50,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 19:00:50,874 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-21 19:00:50,875 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-21 19:00:50,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct03.bpl [2021-08-21 19:00:50,877 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct03.bpl' [2021-08-21 19:00:50,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 19:00:50,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-21 19:00:50,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 19:00:50,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 19:00:50,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 19:00:50,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:50" (1/1) ... [2021-08-21 19:00:50,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:50" (1/1) ... [2021-08-21 19:00:50,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 19:00:50,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 19:00:50,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 19:00:50,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 19:00:50,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:50" (1/1) ... [2021-08-21 19:00:50,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:50" (1/1) ... [2021-08-21 19:00:50,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:50" (1/1) ... [2021-08-21 19:00:50,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:50" (1/1) ... [2021-08-21 19:00:50,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:50" (1/1) ... [2021-08-21 19:00:50,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:50" (1/1) ... [2021-08-21 19:00:50,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:50" (1/1) ... [2021-08-21 19:00:50,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 19:00:50,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 19:00:50,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 19:00:50,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 19:00:50,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:50" (1/1) ... [2021-08-21 19:00:50,985 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:00:50,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 19:00:51,014 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 19:00:51,043 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 19:00:51,063 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-21 19:00:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-21 19:00:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-21 19:00:51,063 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-21 19:00:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-21 19:00:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-21 19:00:51,064 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-21 19:00:51,064 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-21 19:00:51,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-21 19:00:51,064 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-21 19:00:51,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 19:00:51,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 19:00:51,066 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 19:00:51,358 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 19:00:51,359 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-21 19:00:51,360 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-08-21 19:00:51,360 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-08-21 19:00:51,362 INFO L202 PluginConnector]: Adding new model bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:00:51 BoogieIcfgContainer [2021-08-21 19:00:51,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 19:00:51,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 19:00:51,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 19:00:51,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 19:00:51,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:50" (1/2) ... [2021-08-21 19:00:51,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc0d788 and model type bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:00:51, skipping insertion in model container [2021-08-21 19:00:51,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:00:51" (2/2) ... [2021-08-21 19:00:51,369 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct03.bpl [2021-08-21 19:00:51,373 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 19:00:51,374 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 19:00:51,374 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 19:00:51,374 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 19:00:51,404 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 19:00:51,456 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 19:00:51,467 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 19:00:51,467 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-21 19:00:51,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 563 states, 470 states have (on average 2.027659574468085) internal successors, (953), 562 states have internal predecessors, (953), 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 19:00:51,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-21 19:00:51,879 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:00:51,880 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:00:51,880 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 19:00:51,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:00:51,885 INFO L82 PathProgramCache]: Analyzing trace with hash -179373266, now seen corresponding path program 1 times [2021-08-21 19:00:51,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:00:51,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692931073] [2021-08-21 19:00:51,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:00:51,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:00:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:00:51,996 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 19:00:51,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:00:51,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692931073] [2021-08-21 19:00:51,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692931073] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:00:51,997 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:00:51,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-21 19:00:51,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125239058] [2021-08-21 19:00:52,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 19:00:52,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:00:52,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 19:00:52,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:00:52,017 INFO L87 Difference]: Start difference. First operand has 563 states, 470 states have (on average 2.027659574468085) internal successors, (953), 562 states have internal predecessors, (953), 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 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 19:00:52,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:00:52,048 INFO L93 Difference]: Finished difference Result 475 states and 753 transitions. [2021-08-21 19:00:52,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 19:00:52,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-08-21 19:00:52,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:00:52,062 INFO L225 Difference]: With dead ends: 475 [2021-08-21 19:00:52,062 INFO L226 Difference]: Without dead ends: 292 [2021-08-21 19:00:52,063 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:00:52,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-08-21 19:00:52,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2021-08-21 19:00:52,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 270 states have (on average 2.074074074074074) internal successors, (560), 291 states have internal predecessors, (560), 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 19:00:52,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 560 transitions. [2021-08-21 19:00:52,119 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 560 transitions. Word has length 8 [2021-08-21 19:00:52,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:00:52,119 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 560 transitions. [2021-08-21 19:00:52,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 19:00:52,120 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 560 transitions. [2021-08-21 19:00:52,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-21 19:00:52,122 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:00:52,122 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:00:52,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 19:00:52,122 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 19:00:52,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:00:52,123 INFO L82 PathProgramCache]: Analyzing trace with hash -2086040946, now seen corresponding path program 1 times [2021-08-21 19:00:52,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:00:52,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698811314] [2021-08-21 19:00:52,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:00:52,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:00:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:00:52,145 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 19:00:52,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:00:52,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698811314] [2021-08-21 19:00:52,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698811314] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:00:52,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:00:52,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 19:00:52,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255730640] [2021-08-21 19:00:52,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 19:00:52,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:00:52,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 19:00:52,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:00:52,149 INFO L87 Difference]: Start difference. First operand 292 states and 560 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 19:00:52,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:00:52,164 INFO L93 Difference]: Finished difference Result 292 states and 499 transitions. [2021-08-21 19:00:52,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 19:00:52,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2021-08-21 19:00:52,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:00:52,167 INFO L225 Difference]: With dead ends: 292 [2021-08-21 19:00:52,167 INFO L226 Difference]: Without dead ends: 190 [2021-08-21 19:00:52,168 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:00:52,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-08-21 19:00:52,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2021-08-21 19:00:52,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 168 states have (on average 1.7916666666666667) internal successors, (301), 189 states have internal predecessors, (301), 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 19:00:52,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 301 transitions. [2021-08-21 19:00:52,181 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 301 transitions. Word has length 12 [2021-08-21 19:00:52,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:00:52,181 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 301 transitions. [2021-08-21 19:00:52,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 19:00:52,181 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 301 transitions. [2021-08-21 19:00:52,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-21 19:00:52,182 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:00:52,182 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:00:52,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 19:00:52,183 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 19:00:52,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:00:52,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1922039020, now seen corresponding path program 2 times [2021-08-21 19:00:52,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:00:52,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742638295] [2021-08-21 19:00:52,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:00:52,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:00:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:00:52,247 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 19:00:52,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:00:52,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742638295] [2021-08-21 19:00:52,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742638295] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:00:52,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:00:52,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 19:00:52,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868005534] [2021-08-21 19:00:52,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 19:00:52,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:00:52,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 19:00:52,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-21 19:00:52,249 INFO L87 Difference]: Start difference. First operand 190 states and 301 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 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 19:00:52,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:00:52,319 INFO L93 Difference]: Finished difference Result 333 states and 631 transitions. [2021-08-21 19:00:52,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 19:00:52,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2021-08-21 19:00:52,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:00:52,327 INFO L225 Difference]: With dead ends: 333 [2021-08-21 19:00:52,327 INFO L226 Difference]: Without dead ends: 306 [2021-08-21 19:00:52,328 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 19.3ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-21 19:00:52,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-08-21 19:00:52,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 277. [2021-08-21 19:00:52,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 256 states have (on average 2.1875) internal successors, (560), 276 states have internal predecessors, (560), 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 19:00:52,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 560 transitions. [2021-08-21 19:00:52,353 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 560 transitions. Word has length 12 [2021-08-21 19:00:52,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:00:52,354 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 560 transitions. [2021-08-21 19:00:52,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 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 19:00:52,354 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 560 transitions. [2021-08-21 19:00:52,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-21 19:00:52,361 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:00:52,361 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:00:52,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 19:00:52,362 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-21 19:00:52,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:00:52,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1995512329, now seen corresponding path program 1 times [2021-08-21 19:00:52,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:00:52,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123401981] [2021-08-21 19:00:52,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:00:52,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:00:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:00:52,453 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 19:00:52,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:00:52,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123401981] [2021-08-21 19:00:52,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123401981] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:00:52,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:00:52,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 19:00:52,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509236529] [2021-08-21 19:00:52,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 19:00:52,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:00:52,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 19:00:52,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-21 19:00:52,456 INFO L87 Difference]: Start difference. First operand 277 states and 560 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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 19:00:52,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:00:52,587 INFO L93 Difference]: Finished difference Result 401 states and 859 transitions. [2021-08-21 19:00:52,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-21 19:00:52,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2021-08-21 19:00:52,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:00:52,600 INFO L225 Difference]: With dead ends: 401 [2021-08-21 19:00:52,600 INFO L226 Difference]: Without dead ends: 306 [2021-08-21 19:00:52,600 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 26.5ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-21 19:00:52,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-08-21 19:00:52,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 239. [2021-08-21 19:00:52,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 221 states have (on average 2.167420814479638) internal successors, (479), 238 states have internal predecessors, (479), 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 19:00:52,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 479 transitions. [2021-08-21 19:00:52,618 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 479 transitions. Word has length 15 [2021-08-21 19:00:52,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:00:52,619 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 479 transitions. [2021-08-21 19:00:52,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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 19:00:52,619 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 479 transitions. [2021-08-21 19:00:52,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-21 19:00:52,620 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:00:52,620 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:00:52,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 19:00:52,620 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-21 19:00:52,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:00:52,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1367372962, now seen corresponding path program 1 times [2021-08-21 19:00:52,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:00:52,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502861755] [2021-08-21 19:00:52,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:00:52,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:00:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:00:52,745 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 19:00:52,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:00:52,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502861755] [2021-08-21 19:00:52,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502861755] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:00:52,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:00:52,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 19:00:52,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59370118] [2021-08-21 19:00:52,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 19:00:52,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:00:52,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 19:00:52,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-21 19:00:52,750 INFO L87 Difference]: Start difference. First operand 239 states and 479 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:00:52,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:00:52,810 INFO L93 Difference]: Finished difference Result 167 states and 407 transitions. [2021-08-21 19:00:52,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 19:00:52,811 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-21 19:00:52,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:00:52,811 INFO L225 Difference]: With dead ends: 167 [2021-08-21 19:00:52,811 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 19:00:52,812 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 35.1ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-21 19:00:52,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 19:00:52,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 19:00:52,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 19:00:52,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 19:00:52,812 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-08-21 19:00:52,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:00:52,813 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 19:00:52,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:00:52,813 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 19:00:52,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 19:00:52,815 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:00:52,816 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 19:00:52,816 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 19:00:52,816 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 19:00:52,816 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-21 19:00:52,816 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:00:52,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 19:00:52,822 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 19:00:52,822 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 19:00:52,824 INFO L202 PluginConnector]: Adding new model bluetooth-correct03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:00:52 BasicIcfg [2021-08-21 19:00:52,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 19:00:52,825 INFO L168 Benchmark]: Toolchain (without parser) took 1916.01 ms. Allocated memory is still 178.3 MB. Free memory was 157.9 MB in the beginning and 129.3 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 8.0 GB. [2021-08-21 19:00:52,826 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 178.3 MB. Free memory was 159.1 MB in the beginning and 159.0 MB in the end (delta: 77.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 19:00:52,826 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.10 ms. Allocated memory is still 178.3 MB. Free memory was 157.9 MB in the beginning and 156.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 19:00:52,827 INFO L168 Benchmark]: Boogie Preprocessor took 19.01 ms. Allocated memory is still 178.3 MB. Free memory was 156.0 MB in the beginning and 155.1 MB in the end (delta: 937.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 19:00:52,827 INFO L168 Benchmark]: RCFGBuilder took 384.62 ms. Allocated memory is still 178.3 MB. Free memory was 155.0 MB in the beginning and 140.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-21 19:00:52,828 INFO L168 Benchmark]: TraceAbstraction took 1460.57 ms. Allocated memory is still 178.3 MB. Free memory was 139.5 MB in the beginning and 129.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 8.0 GB. [2021-08-21 19:00:52,829 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 0.22 ms. Allocated memory is still 178.3 MB. Free memory was 159.1 MB in the beginning and 159.0 MB in the end (delta: 77.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 42.10 ms. Allocated memory is still 178.3 MB. Free memory was 157.9 MB in the beginning and 156.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.01 ms. Allocated memory is still 178.3 MB. Free memory was 156.0 MB in the beginning and 155.1 MB in the end (delta: 937.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 384.62 ms. Allocated memory is still 178.3 MB. Free memory was 155.0 MB in the beginning and 140.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1460.57 ms. Allocated memory is still 178.3 MB. Free memory was 139.5 MB in the beginning and 129.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2430, positive: 2089, positive conditional: 2089, positive unconditional: 0, negative: 341, negative conditional: 341, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2266, positive: 2089, positive conditional: 0, positive unconditional: 2089, negative: 177, negative conditional: 0, negative unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 153, positive: 140, positive conditional: 0, positive unconditional: 140, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 153, positive: 124, positive conditional: 0, positive unconditional: 124, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 29, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 174, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2266, positive: 1949, positive conditional: 0, positive unconditional: 1949, negative: 164, negative conditional: 0, negative unconditional: 164, unknown: 153, unknown conditional: 0, unknown unconditional: 153] , Statistics on independence cache: Total cache size (in pairs): 153, Positive cache size: 140, Positive conditional cache size: 0, Positive unconditional cache size: 140, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Independence queries for same thread: 164 - 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: 36]: 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 8 procedures, 45 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1374.6ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 20.1ms, AutomataDifference: 367.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 401.7ms, PartialOrderReductionTime: 378.5ms, HoareTripleCheckerStatistics: 115 SDtfs, 145 SDslu, 127 SDs, 0 SdLazy, 130 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 162.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 87.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=563occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 99.7ms AutomataMinimizationTime, 5 MinimizatonAttempts, 96 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.8ms SsaConstructionTime, 50.3ms SatisfiabilityAnalysisTime, 278.9ms InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 19:00:52,864 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...