/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-customized07.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 13:37:39,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 13:37:39,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 13:37:39,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 13:37:39,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 13:37:39,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 13:37:39,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 13:37:39,715 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 13:37:39,745 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 13:37:39,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 13:37:39,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-21 13:37:39,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-21 13:37:39,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 13:37:39,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 13:37:39,749 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 13:37:39,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 13:37:39,749 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 13:37:39,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 13:37:39,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 13:37:39,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 13:37:39,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 13:37:39,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 13:37:39,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 13:37:39,750 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 13:37:39,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 13:37:39,750 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 13:37:39,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 13:37:39,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 13:37:39,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 13:37:39,751 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 13:37:39,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 13:37:39,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 13:37:39,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 13:37:39,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 13:37:39,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 13:37:39,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 13:37:39,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 13:37:39,752 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 13:37:39,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 13:37:39,752 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 13:37:40,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 13:37:40,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 13:37:40,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 13:37:40,028 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-21 13:37:40,030 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-21 13:37:40,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized07.bpl [2021-08-21 13:37:40,048 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized07.bpl' [2021-08-21 13:37:40,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 13:37:40,066 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-21 13:37:40,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 13:37:40,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 13:37:40,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 13:37:40,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:40" (1/1) ... [2021-08-21 13:37:40,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:40" (1/1) ... [2021-08-21 13:37:40,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 13:37:40,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 13:37:40,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 13:37:40,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 13:37:40,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:40" (1/1) ... [2021-08-21 13:37:40,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:40" (1/1) ... [2021-08-21 13:37:40,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:40" (1/1) ... [2021-08-21 13:37:40,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:40" (1/1) ... [2021-08-21 13:37:40,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:40" (1/1) ... [2021-08-21 13:37:40,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:40" (1/1) ... [2021-08-21 13:37:40,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:40" (1/1) ... [2021-08-21 13:37:40,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 13:37:40,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 13:37:40,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 13:37:40,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 13:37:40,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:40" (1/1) ... [2021-08-21 13:37:40,118 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 13:37:40,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 13:37:40,140 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 13:37:40,160 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 13:37:40,176 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-21 13:37:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-21 13:37:40,176 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-21 13:37:40,176 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-21 13:37:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-21 13:37:40,176 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-21 13:37:40,176 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-21 13:37:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-21 13:37:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-21 13:37:40,177 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-21 13:37:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 13:37:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 13:37:40,178 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 13:37:40,359 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 13:37:40,359 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-21 13:37:40,360 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-08-21 13:37:40,360 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-08-21 13:37:40,361 INFO L202 PluginConnector]: Adding new model bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:37:40 BoogieIcfgContainer [2021-08-21 13:37:40,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 13:37:40,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 13:37:40,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 13:37:40,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 13:37:40,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:37:40" (1/2) ... [2021-08-21 13:37:40,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea30b55 and model type bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:37:40, skipping insertion in model container [2021-08-21 13:37:40,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:37:40" (2/2) ... [2021-08-21 13:37:40,366 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-customized07.bpl [2021-08-21 13:37:40,369 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 13:37:40,369 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 13:37:40,370 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 13:37:40,370 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 13:37:40,428 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 13:37:40,458 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 13:37:40,463 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 13:37:40,463 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-08-21 13:37:40,471 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 49 transitions, 138 flow [2021-08-21 13:37:42,832 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 45923 states, 45921 states have (on average 8.064458526600031) internal successors, (370328), 45922 states have internal predecessors, (370328), 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 13:37:42,971 INFO L276 IsEmpty]: Start isEmpty. Operand has 45923 states, 45921 states have (on average 8.064458526600031) internal successors, (370328), 45922 states have internal predecessors, (370328), 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 13:37:42,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-21 13:37:42,976 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:37:42,977 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:37:42,977 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 13:37:42,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:37:42,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1624091973, now seen corresponding path program 1 times [2021-08-21 13:37:42,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:37:42,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699078975] [2021-08-21 13:37:42,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:37:42,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:37:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:37:43,099 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 13:37:43,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:37:43,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699078975] [2021-08-21 13:37:43,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699078975] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:37:43,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:37:43,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-21 13:37:43,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544816923] [2021-08-21 13:37:43,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-21 13:37:43,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:37:43,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-21 13:37:43,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-21 13:37:43,360 INFO L87 Difference]: Start difference. First operand has 45923 states, 45921 states have (on average 8.064458526600031) internal successors, (370328), 45922 states have internal predecessors, (370328), 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 4 states, 3 states have (on average 2.6666666666666665) 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 13:37:46,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:37:46,150 INFO L93 Difference]: Finished difference Result 109215 states and 882273 transitions. [2021-08-21 13:37:46,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-21 13:37:46,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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 13:37:46,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:37:47,781 INFO L225 Difference]: With dead ends: 109215 [2021-08-21 13:37:47,782 INFO L226 Difference]: Without dead ends: 103811 [2021-08-21 13:37:47,783 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-21 13:37:48,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103811 states. [2021-08-21 13:37:53,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103811 to 103043. [2021-08-21 13:37:54,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103043 states, 103042 states have (on average 8.170163622600493) internal successors, (841870), 103042 states have internal predecessors, (841870), 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 13:37:55,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103043 states to 103043 states and 841870 transitions. [2021-08-21 13:37:55,805 INFO L78 Accepts]: Start accepts. Automaton has 103043 states and 841870 transitions. Word has length 8 [2021-08-21 13:37:55,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:37:55,805 INFO L470 AbstractCegarLoop]: Abstraction has 103043 states and 841870 transitions. [2021-08-21 13:37:55,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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 13:37:55,805 INFO L276 IsEmpty]: Start isEmpty. Operand 103043 states and 841870 transitions. [2021-08-21 13:37:55,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-21 13:37:55,806 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:37:55,806 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:37:55,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 13:37:55,807 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 13:37:55,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:37:55,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1685929702, now seen corresponding path program 1 times [2021-08-21 13:37:55,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:37:55,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062749624] [2021-08-21 13:37:55,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:37:55,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:37:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:37:56,118 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 13:37:56,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:37:56,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062749624] [2021-08-21 13:37:56,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062749624] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:37:56,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:37:56,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 13:37:56,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930196051] [2021-08-21 13:37:56,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 13:37:56,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:37:56,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 13:37:56,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 13:37:56,121 INFO L87 Difference]: Start difference. First operand 103043 states and 841870 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:57,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:37:57,409 INFO L93 Difference]: Finished difference Result 85515 states and 551917 transitions. [2021-08-21 13:37:57,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 13:37:57,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-21 13:37:57,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:37:58,262 INFO L225 Difference]: With dead ends: 85515 [2021-08-21 13:37:58,262 INFO L226 Difference]: Without dead ends: 46067 [2021-08-21 13:37:58,263 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 13:37:58,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46067 states. [2021-08-21 13:38:00,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46067 to 46067. [2021-08-21 13:38:00,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46067 states, 46066 states have (on average 6.407914731038076) internal successors, (295187), 46066 states have internal predecessors, (295187), 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 13:38:00,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46067 states to 46067 states and 295187 transitions. [2021-08-21 13:38:00,855 INFO L78 Accepts]: Start accepts. Automaton has 46067 states and 295187 transitions. Word has length 10 [2021-08-21 13:38:00,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:38:00,855 INFO L470 AbstractCegarLoop]: Abstraction has 46067 states and 295187 transitions. [2021-08-21 13:38:00,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:38:00,856 INFO L276 IsEmpty]: Start isEmpty. Operand 46067 states and 295187 transitions. [2021-08-21 13:38:00,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-21 13:38:00,864 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:38:00,864 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:38:00,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 13:38:00,865 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 13:38:00,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:38:00,867 INFO L82 PathProgramCache]: Analyzing trace with hash 2009219555, now seen corresponding path program 1 times [2021-08-21 13:38:00,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:38:00,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080347551] [2021-08-21 13:38:00,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:38:00,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:38:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:38:00,952 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 13:38:00,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:38:00,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080347551] [2021-08-21 13:38:00,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080347551] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:38:00,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:38:00,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 13:38:00,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534954412] [2021-08-21 13:38:00,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-21 13:38:00,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:38:00,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-21 13:38:00,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-21 13:38:00,954 INFO L87 Difference]: Start difference. First operand 46067 states and 295187 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 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 13:38:02,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:38:02,721 INFO L93 Difference]: Finished difference Result 100969 states and 648265 transitions. [2021-08-21 13:38:02,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 13:38:02,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 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 13:38:02,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:38:03,611 INFO L225 Difference]: With dead ends: 100969 [2021-08-21 13:38:03,612 INFO L226 Difference]: Without dead ends: 94503 [2021-08-21 13:38:03,612 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-21 13:38:03,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94503 states. [2021-08-21 13:38:06,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94503 to 55905. [2021-08-21 13:38:06,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55905 states, 55904 states have (on average 6.422134373211219) internal successors, (359023), 55904 states have internal predecessors, (359023), 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 13:38:07,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55905 states to 55905 states and 359023 transitions. [2021-08-21 13:38:07,352 INFO L78 Accepts]: Start accepts. Automaton has 55905 states and 359023 transitions. Word has length 13 [2021-08-21 13:38:07,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:38:07,354 INFO L470 AbstractCegarLoop]: Abstraction has 55905 states and 359023 transitions. [2021-08-21 13:38:07,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 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 13:38:07,354 INFO L276 IsEmpty]: Start isEmpty. Operand 55905 states and 359023 transitions. [2021-08-21 13:38:07,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-21 13:38:07,369 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:38:07,370 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:38:07,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 13:38:07,370 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 13:38:07,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:38:07,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1108481704, now seen corresponding path program 1 times [2021-08-21 13:38:07,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:38:07,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861943556] [2021-08-21 13:38:07,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:38:07,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:38:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:38:07,422 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 13:38:07,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:38:07,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861943556] [2021-08-21 13:38:07,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861943556] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:38:07,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:38:07,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-21 13:38:07,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152612714] [2021-08-21 13:38:07,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 13:38:07,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:38:07,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 13:38:07,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-21 13:38:07,427 INFO L87 Difference]: Start difference. First operand 55905 states and 359023 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 13:38:09,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:38:09,991 INFO L93 Difference]: Finished difference Result 139825 states and 900052 transitions. [2021-08-21 13:38:09,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-21 13:38:09,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-08-21 13:38:09,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:38:11,506 INFO L225 Difference]: With dead ends: 139825 [2021-08-21 13:38:11,506 INFO L226 Difference]: Without dead ends: 122740 [2021-08-21 13:38:11,506 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.6ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-21 13:38:11,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122740 states. [2021-08-21 13:38:14,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122740 to 60711. [2021-08-21 13:38:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60711 states, 60710 states have (on average 6.456613408005271) internal successors, (391981), 60710 states have internal predecessors, (391981), 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 13:38:16,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60711 states to 60711 states and 391981 transitions. [2021-08-21 13:38:16,088 INFO L78 Accepts]: Start accepts. Automaton has 60711 states and 391981 transitions. Word has length 16 [2021-08-21 13:38:16,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:38:16,088 INFO L470 AbstractCegarLoop]: Abstraction has 60711 states and 391981 transitions. [2021-08-21 13:38:16,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 13:38:16,088 INFO L276 IsEmpty]: Start isEmpty. Operand 60711 states and 391981 transitions. [2021-08-21 13:38:16,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-21 13:38:16,161 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:38:16,161 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:38:16,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 13:38:16,161 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 13:38:16,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:38:16,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1737208747, now seen corresponding path program 1 times [2021-08-21 13:38:16,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:38:16,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908593064] [2021-08-21 13:38:16,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:38:16,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:38:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:38:16,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 13:38:16,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:38:16,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908593064] [2021-08-21 13:38:16,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908593064] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:38:16,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:38:16,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 13:38:16,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449688241] [2021-08-21 13:38:16,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 13:38:16,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:38:16,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 13:38:16,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-21 13:38:16,233 INFO L87 Difference]: Start difference. First operand 60711 states and 391981 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 13:38:19,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:38:19,656 INFO L93 Difference]: Finished difference Result 158165 states and 1024251 transitions. [2021-08-21 13:38:19,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 13:38:19,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 19 [2021-08-21 13:38:19,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:38:22,099 INFO L225 Difference]: With dead ends: 158165 [2021-08-21 13:38:22,099 INFO L226 Difference]: Without dead ends: 129132 [2021-08-21 13:38:22,099 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.0ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-21 13:38:22,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129132 states. [2021-08-21 13:38:25,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129132 to 60933. [2021-08-21 13:38:25,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60933 states, 60932 states have (on average 6.48014179741351) internal successors, (394848), 60932 states have internal predecessors, (394848), 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 13:38:26,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60933 states to 60933 states and 394848 transitions. [2021-08-21 13:38:26,426 INFO L78 Accepts]: Start accepts. Automaton has 60933 states and 394848 transitions. Word has length 19 [2021-08-21 13:38:26,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:38:26,427 INFO L470 AbstractCegarLoop]: Abstraction has 60933 states and 394848 transitions. [2021-08-21 13:38:26,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 13:38:26,427 INFO L276 IsEmpty]: Start isEmpty. Operand 60933 states and 394848 transitions. [2021-08-21 13:38:26,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-21 13:38:26,477 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:38:26,477 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:38:26,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 13:38:26,478 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 13:38:26,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:38:26,478 INFO L82 PathProgramCache]: Analyzing trace with hash 2032436250, now seen corresponding path program 1 times [2021-08-21 13:38:26,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:38:26,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780014101] [2021-08-21 13:38:26,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:38:26,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:38:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:38:26,548 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 13:38:26,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:38:26,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780014101] [2021-08-21 13:38:26,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780014101] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:38:26,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:38:26,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 13:38:26,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965073761] [2021-08-21 13:38:26,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 13:38:26,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:38:26,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 13:38:26,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-21 13:38:26,551 INFO L87 Difference]: Start difference. First operand 60933 states and 394848 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:38:29,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:38:29,379 INFO L93 Difference]: Finished difference Result 152163 states and 989410 transitions. [2021-08-21 13:38:29,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 13:38:29,380 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-08-21 13:38:29,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:38:30,861 INFO L225 Difference]: With dead ends: 152163 [2021-08-21 13:38:30,861 INFO L226 Difference]: Without dead ends: 112890 [2021-08-21 13:38:30,861 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.6ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-21 13:38:31,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112890 states. [2021-08-21 13:38:34,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112890 to 57399. [2021-08-21 13:38:34,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57399 states, 57398 states have (on average 6.501115021429318) internal successors, (373151), 57398 states have internal predecessors, (373151), 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 13:38:35,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57399 states to 57399 states and 373151 transitions. [2021-08-21 13:38:35,004 INFO L78 Accepts]: Start accepts. Automaton has 57399 states and 373151 transitions. Word has length 22 [2021-08-21 13:38:35,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:38:35,004 INFO L470 AbstractCegarLoop]: Abstraction has 57399 states and 373151 transitions. [2021-08-21 13:38:35,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:38:35,004 INFO L276 IsEmpty]: Start isEmpty. Operand 57399 states and 373151 transitions. [2021-08-21 13:38:35,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-21 13:38:35,057 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:38:35,057 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:38:35,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 13:38:35,057 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 13:38:35,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:38:35,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1924265125, now seen corresponding path program 1 times [2021-08-21 13:38:35,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:38:35,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592132779] [2021-08-21 13:38:35,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:38:35,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:38:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:38:35,149 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 13:38:35,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:38:35,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592132779] [2021-08-21 13:38:35,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592132779] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:38:35,150 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:38:35,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 13:38:35,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177661226] [2021-08-21 13:38:35,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-21 13:38:35,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:38:35,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-21 13:38:35,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-21 13:38:35,151 INFO L87 Difference]: Start difference. First operand 57399 states and 373151 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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 13:38:37,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:38:37,702 INFO L93 Difference]: Finished difference Result 122725 states and 798907 transitions. [2021-08-21 13:38:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 13:38:37,702 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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 25 [2021-08-21 13:38:37,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:38:39,085 INFO L225 Difference]: With dead ends: 122725 [2021-08-21 13:38:39,085 INFO L226 Difference]: Without dead ends: 78358 [2021-08-21 13:38:39,085 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.0ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-21 13:38:39,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78358 states. [2021-08-21 13:38:40,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78358 to 48557. [2021-08-21 13:38:41,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48557 states, 48556 states have (on average 6.5208625092676495) internal successors, (316627), 48556 states have internal predecessors, (316627), 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 13:38:41,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48557 states to 48557 states and 316627 transitions. [2021-08-21 13:38:41,760 INFO L78 Accepts]: Start accepts. Automaton has 48557 states and 316627 transitions. Word has length 25 [2021-08-21 13:38:41,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:38:41,760 INFO L470 AbstractCegarLoop]: Abstraction has 48557 states and 316627 transitions. [2021-08-21 13:38:41,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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 13:38:41,760 INFO L276 IsEmpty]: Start isEmpty. Operand 48557 states and 316627 transitions. [2021-08-21 13:38:41,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-21 13:38:41,790 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:38:41,790 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:38:41,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 13:38:41,790 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 13:38:41,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:38:41,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1452461780, now seen corresponding path program 1 times [2021-08-21 13:38:41,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:38:41,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769614680] [2021-08-21 13:38:41,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:38:41,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:38:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:38:41,877 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 13:38:41,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:38:41,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769614680] [2021-08-21 13:38:41,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769614680] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:38:41,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:38:41,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 13:38:41,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899450373] [2021-08-21 13:38:41,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-21 13:38:41,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:38:41,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-21 13:38:41,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-21 13:38:41,879 INFO L87 Difference]: Start difference. First operand 48557 states and 316627 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:38:42,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:38:42,702 INFO L93 Difference]: Finished difference Result 39809 states and 258307 transitions. [2021-08-21 13:38:42,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 13:38:42,702 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-08-21 13:38:42,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:38:42,702 INFO L225 Difference]: With dead ends: 39809 [2021-08-21 13:38:42,703 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 13:38:42,703 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.3ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-21 13:38:42,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 13:38:42,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 13:38:42,703 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 13:38:42,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 13:38:42,703 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-08-21 13:38:42,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:38:42,705 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 13:38:42,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:38:42,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 13:38:42,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 13:38:42,719 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 13:38:42,720 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 13:38:42,720 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 13:38:42,724 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 13:38:42,728 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-21 13:38:42,728 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-21 13:38:42,728 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-21 13:38:42,728 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION [2021-08-21 13:38:42,728 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATION [2021-08-21 13:38:42,728 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 13:38:42,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-21 13:38:42,746 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 13:38:42,746 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 13:38:42,748 INFO L202 PluginConnector]: Adding new model bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 01:38:42 BasicIcfg [2021-08-21 13:38:42,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 13:38:42,749 INFO L168 Benchmark]: Toolchain (without parser) took 62682.93 ms. Allocated memory was 185.6 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 165.5 MB in the beginning and 6.1 GB in the end (delta: -6.0 GB). Peak memory consumption was 1.8 GB. Max. memory is 8.0 GB. [2021-08-21 13:38:42,749 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 185.6 MB. Free memory is still 166.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 13:38:42,749 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.80 ms. Allocated memory is still 185.6 MB. Free memory was 165.3 MB in the beginning and 163.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 13:38:42,750 INFO L168 Benchmark]: Boogie Preprocessor took 13.29 ms. Allocated memory is still 185.6 MB. Free memory was 163.6 MB in the beginning and 162.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 13:38:42,750 INFO L168 Benchmark]: RCFGBuilder took 250.53 ms. Allocated memory is still 185.6 MB. Free memory was 162.5 MB in the beginning and 148.0 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-21 13:38:42,750 INFO L168 Benchmark]: TraceAbstraction took 62385.27 ms. Allocated memory was 185.6 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 147.5 MB in the beginning and 6.1 GB in the end (delta: -6.0 GB). Peak memory consumption was 1.8 GB. Max. memory is 8.0 GB. [2021-08-21 13:38:42,751 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 0.12 ms. Allocated memory is still 185.6 MB. Free memory is still 166.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 29.80 ms. Allocated memory is still 185.6 MB. Free memory was 165.3 MB in the beginning and 163.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.29 ms. Allocated memory is still 185.6 MB. Free memory was 163.6 MB in the beginning and 162.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 250.53 ms. Allocated memory is still 185.6 MB. Free memory was 162.5 MB in the beginning and 148.0 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 62385.27 ms. Allocated memory was 185.6 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 147.5 MB in the beginning and 6.1 GB in the end (delta: -6.0 GB). Peak memory consumption was 1.8 GB. 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 - PositiveResult [Line: 40]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 12 procedures, 65 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 62287.9ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 373.3ms, AutomataDifference: 28496.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2369.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 504 SDtfs, 655 SDslu, 825 SDs, 0 SdLazy, 1266 SolverSat, 422 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 819.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 141.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=103043occurred in iteration=1, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 30069.3ms AutomataMinimizationTime, 8 MinimizatonAttempts, 254886 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.6ms SsaConstructionTime, 68.2ms SatisfiabilityAnalysisTime, 709.4ms InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 381 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 13:38:42,792 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...