/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-correct07.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 19:00:57,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 19:00:57,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 19:00:57,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 19:00:57,654 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 19:00:57,674 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 19:00:57,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 19:00:57,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 19:00:57,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 19:00:57,677 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 19:00:57,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 19:00:57,677 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 19:00:57,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 19:00:57,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 19:00:57,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 19:00:57,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 19:00:57,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 19:00:57,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 19:00:57,678 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 19:00:57,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 19:00:57,679 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 19:00:57,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 19:00:57,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 19:00:57,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 19:00:57,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 19:00:57,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 19:00:57,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:00:57,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 19:00:57,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 19:00:57,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 19:00:57,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 19:00:57,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 19:00:57,680 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 19:00:57,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 19:00:57,680 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 19:00:57,680 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 19:00:58,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 19:00:58,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 19:00:58,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 19:00:58,035 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-21 19:00:58,040 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-21 19:00:58,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct07.bpl [2021-08-21 19:00:58,041 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct07.bpl' [2021-08-21 19:00:58,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 19:00:58,075 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-21 19:00:58,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 19:00:58,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 19:00:58,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 19:00:58,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:58" (1/1) ... [2021-08-21 19:00:58,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:58" (1/1) ... [2021-08-21 19:00:58,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 19:00:58,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 19:00:58,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 19:00:58,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 19:00:58,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:58" (1/1) ... [2021-08-21 19:00:58,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:58" (1/1) ... [2021-08-21 19:00:58,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:58" (1/1) ... [2021-08-21 19:00:58,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:58" (1/1) ... [2021-08-21 19:00:58,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:58" (1/1) ... [2021-08-21 19:00:58,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:58" (1/1) ... [2021-08-21 19:00:58,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:58" (1/1) ... [2021-08-21 19:00:58,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 19:00:58,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 19:00:58,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 19:00:58,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 19:00:58,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:58" (1/1) ... [2021-08-21 19:00:58,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:00:58,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 19:00:58,204 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 19:00:58,232 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 19:00:58,255 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-21 19:00:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-21 19:00:58,255 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-21 19:00:58,255 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-21 19:00:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-21 19:00:58,256 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-21 19:00:58,256 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-21 19:00:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-21 19:00:58,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-21 19:00:58,261 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-21 19:00:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 19:00:58,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 19:00:58,276 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 19:00:58,620 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 19:00:58,620 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-21 19:00:58,621 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-08-21 19:00:58,621 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-08-21 19:00:58,622 INFO L202 PluginConnector]: Adding new model bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:00:58 BoogieIcfgContainer [2021-08-21 19:00:58,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 19:00:58,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 19:00:58,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 19:00:58,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 19:00:58,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:00:58" (1/2) ... [2021-08-21 19:00:58,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eea01a3 and model type bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:00:58, skipping insertion in model container [2021-08-21 19:00:58,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:00:58" (2/2) ... [2021-08-21 19:00:58,650 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct07.bpl [2021-08-21 19:00:58,653 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 19:00:58,653 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 19:00:58,653 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 19:00:58,653 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 19:00:58,720 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 19:00:58,757 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 19:00:58,761 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 19:00:58,761 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-08-21 19:01:03,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 45923 states, 38270 states have (on average 3.3291350927619545) internal successors, (127406), 45922 states have internal predecessors, (127406), 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 19:01:03,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-21 19:01:03,278 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:03,279 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:01:03,279 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 19:01:03,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:03,282 INFO L82 PathProgramCache]: Analyzing trace with hash 425563323, now seen corresponding path program 1 times [2021-08-21 19:01:03,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:03,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047267684] [2021-08-21 19:01:03,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:03,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:03,358 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 19:01:03,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:03,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047267684] [2021-08-21 19:01:03,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047267684] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:03,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:03,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-21 19:01:03,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480618037] [2021-08-21 19:01:03,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 19:01:03,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:03,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 19:01:03,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:01:03,624 INFO L87 Difference]: Start difference. First operand has 45923 states, 38270 states have (on average 3.3291350927619545) internal successors, (127406), 45922 states have internal predecessors, (127406), 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 19:01:03,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:03,964 INFO L93 Difference]: Finished difference Result 38635 states and 99152 transitions. [2021-08-21 19:01:03,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 19:01:03,966 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 19:01:03,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:04,284 INFO L225 Difference]: With dead ends: 38635 [2021-08-21 19:01:04,284 INFO L226 Difference]: Without dead ends: 23692 [2021-08-21 19:01:04,285 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:01:04,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23692 states. [2021-08-21 19:01:05,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23692 to 23692. [2021-08-21 19:01:05,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23692 states, 21870 states have (on average 3.7085048010973938) internal successors, (81105), 23691 states have internal predecessors, (81105), 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 19:01:05,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23692 states to 23692 states and 81105 transitions. [2021-08-21 19:01:05,590 INFO L78 Accepts]: Start accepts. Automaton has 23692 states and 81105 transitions. Word has length 8 [2021-08-21 19:01:05,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:05,590 INFO L470 AbstractCegarLoop]: Abstraction has 23692 states and 81105 transitions. [2021-08-21 19:01:05,591 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 19:01:05,591 INFO L276 IsEmpty]: Start isEmpty. Operand 23692 states and 81105 transitions. [2021-08-21 19:01:05,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-21 19:01:05,593 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:05,593 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:01:05,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 19:01:05,594 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 19:01:05,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:05,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1411352313, now seen corresponding path program 1 times [2021-08-21 19:01:05,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:05,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008365500] [2021-08-21 19:01:05,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:05,595 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:05,812 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 19:01:05,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:05,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008365500] [2021-08-21 19:01:05,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008365500] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:05,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:05,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 19:01:05,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721331593] [2021-08-21 19:01:05,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 19:01:05,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:05,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 19:01:05,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-21 19:01:05,814 INFO L87 Difference]: Start difference. First operand 23692 states and 81105 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 19:01:06,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:06,666 INFO L93 Difference]: Finished difference Result 54791 states and 219260 transitions. [2021-08-21 19:01:06,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 19:01:06,668 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 19:01:06,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:07,111 INFO L225 Difference]: With dead ends: 54791 [2021-08-21 19:01:07,111 INFO L226 Difference]: Without dead ends: 54791 [2021-08-21 19:01:07,112 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 27.5ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-21 19:01:07,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54791 states. [2021-08-21 19:01:08,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54791 to 46869. [2021-08-21 19:01:08,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46869 states, 45047 states have (on average 4.663906586454148) internal successors, (210095), 46868 states have internal predecessors, (210095), 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 19:01:09,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46869 states to 46869 states and 210095 transitions. [2021-08-21 19:01:09,102 INFO L78 Accepts]: Start accepts. Automaton has 46869 states and 210095 transitions. Word has length 12 [2021-08-21 19:01:09,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:09,102 INFO L470 AbstractCegarLoop]: Abstraction has 46869 states and 210095 transitions. [2021-08-21 19:01:09,102 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 19:01:09,103 INFO L276 IsEmpty]: Start isEmpty. Operand 46869 states and 210095 transitions. [2021-08-21 19:01:09,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-21 19:01:09,105 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:09,105 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:01:09,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 19:01:09,105 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 19:01:09,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:09,106 INFO L82 PathProgramCache]: Analyzing trace with hash 2041431963, now seen corresponding path program 2 times [2021-08-21 19:01:09,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:09,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585988934] [2021-08-21 19:01:09,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:09,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:09,119 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 19:01:09,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:09,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585988934] [2021-08-21 19:01:09,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585988934] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:09,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:09,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 19:01:09,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322827945] [2021-08-21 19:01:09,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 19:01:09,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:09,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 19:01:09,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:01:09,121 INFO L87 Difference]: Start difference. First operand 46869 states and 210095 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 19:01:09,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:09,735 INFO L93 Difference]: Finished difference Result 42484 states and 156782 transitions. [2021-08-21 19:01:09,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 19:01:09,735 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 19:01:09,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:09,873 INFO L225 Difference]: With dead ends: 42484 [2021-08-21 19:01:09,873 INFO L226 Difference]: Without dead ends: 25957 [2021-08-21 19:01:09,873 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 19:01:09,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25957 states. [2021-08-21 19:01:10,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25957 to 25957. [2021-08-21 19:01:10,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25957 states, 24136 states have (on average 4.235788863109049) internal successors, (102235), 25956 states have internal predecessors, (102235), 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 19:01:10,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25957 states to 25957 states and 102235 transitions. [2021-08-21 19:01:10,700 INFO L78 Accepts]: Start accepts. Automaton has 25957 states and 102235 transitions. Word has length 12 [2021-08-21 19:01:10,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:10,700 INFO L470 AbstractCegarLoop]: Abstraction has 25957 states and 102235 transitions. [2021-08-21 19:01:10,700 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 19:01:10,700 INFO L276 IsEmpty]: Start isEmpty. Operand 25957 states and 102235 transitions. [2021-08-21 19:01:10,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-21 19:01:10,703 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:10,704 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:01:10,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 19:01:10,704 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 19:01:10,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:10,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1206306502, now seen corresponding path program 1 times [2021-08-21 19:01:10,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:10,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402496168] [2021-08-21 19:01:10,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:10,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:10,757 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 19:01:10,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:10,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402496168] [2021-08-21 19:01:10,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402496168] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:10,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:10,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 19:01:10,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021817823] [2021-08-21 19:01:10,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 19:01:10,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:10,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 19:01:10,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-21 19:01:10,759 INFO L87 Difference]: Start difference. First operand 25957 states and 102235 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 19:01:11,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:11,472 INFO L93 Difference]: Finished difference Result 46414 states and 195736 transitions. [2021-08-21 19:01:11,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-21 19:01:11,473 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 19:01:11,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:11,655 INFO L225 Difference]: With dead ends: 46414 [2021-08-21 19:01:11,655 INFO L226 Difference]: Without dead ends: 43379 [2021-08-21 19:01:11,656 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 18.3ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-21 19:01:11,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43379 states. [2021-08-21 19:01:12,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43379 to 31399. [2021-08-21 19:01:12,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31399 states, 29581 states have (on average 4.371894121226463) internal successors, (129325), 31398 states have internal predecessors, (129325), 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 19:01:13,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31399 states to 31399 states and 129325 transitions. [2021-08-21 19:01:13,009 INFO L78 Accepts]: Start accepts. Automaton has 31399 states and 129325 transitions. Word has length 15 [2021-08-21 19:01:13,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:13,009 INFO L470 AbstractCegarLoop]: Abstraction has 31399 states and 129325 transitions. [2021-08-21 19:01:13,010 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 19:01:13,010 INFO L276 IsEmpty]: Start isEmpty. Operand 31399 states and 129325 transitions. [2021-08-21 19:01:13,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-21 19:01:13,025 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:13,026 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 19:01:13,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 19:01:13,026 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 19:01:13,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:13,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1240456747, now seen corresponding path program 1 times [2021-08-21 19:01:13,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:13,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716908471] [2021-08-21 19:01:13,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:13,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:13,141 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 19:01:13,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:13,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716908471] [2021-08-21 19:01:13,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716908471] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:13,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:13,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 19:01:13,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776645110] [2021-08-21 19:01:13,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 19:01:13,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:13,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 19:01:13,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-21 19:01:13,143 INFO L87 Difference]: Start difference. First operand 31399 states and 129325 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 19:01:13,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:13,919 INFO L93 Difference]: Finished difference Result 55539 states and 240102 transitions. [2021-08-21 19:01:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 19:01:13,920 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 19:01:13,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:14,200 INFO L225 Difference]: With dead ends: 55539 [2021-08-21 19:01:14,201 INFO L226 Difference]: Without dead ends: 49164 [2021-08-21 19:01:14,202 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 31.3ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-21 19:01:14,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49164 states. [2021-08-21 19:01:15,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49164 to 33769. [2021-08-21 19:01:15,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33769 states, 31960 states have (on average 4.445025031289111) internal successors, (142063), 33768 states have internal predecessors, (142063), 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 19:01:15,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33769 states to 33769 states and 142063 transitions. [2021-08-21 19:01:15,664 INFO L78 Accepts]: Start accepts. Automaton has 33769 states and 142063 transitions. Word has length 18 [2021-08-21 19:01:15,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:15,665 INFO L470 AbstractCegarLoop]: Abstraction has 33769 states and 142063 transitions. [2021-08-21 19:01:15,665 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 19:01:15,665 INFO L276 IsEmpty]: Start isEmpty. Operand 33769 states and 142063 transitions. [2021-08-21 19:01:15,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-21 19:01:15,699 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:15,700 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] [2021-08-21 19:01:15,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 19:01:15,700 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 19:01:15,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:15,701 INFO L82 PathProgramCache]: Analyzing trace with hash 962216938, now seen corresponding path program 1 times [2021-08-21 19:01:15,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:15,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153222616] [2021-08-21 19:01:15,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:15,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:15,837 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 19:01:15,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:15,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153222616] [2021-08-21 19:01:15,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153222616] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:15,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:15,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 19:01:15,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220559651] [2021-08-21 19:01:15,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-21 19:01:15,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:15,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-21 19:01:15,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-08-21 19:01:15,842 INFO L87 Difference]: Start difference. First operand 33769 states and 142063 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 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 19:01:16,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:16,642 INFO L93 Difference]: Finished difference Result 57492 states and 251826 transitions. [2021-08-21 19:01:16,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 19:01:16,643 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 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 21 [2021-08-21 19:01:16,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:17,537 INFO L225 Difference]: With dead ends: 57492 [2021-08-21 19:01:17,537 INFO L226 Difference]: Without dead ends: 47695 [2021-08-21 19:01:17,538 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 42.3ms TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-08-21 19:01:17,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47695 states. [2021-08-21 19:01:18,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47695 to 32403. [2021-08-21 19:01:18,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32403 states, 30621 states have (on average 4.400378824989386) internal successors, (134744), 32402 states have internal predecessors, (134744), 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 19:01:18,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32403 states to 32403 states and 134744 transitions. [2021-08-21 19:01:18,763 INFO L78 Accepts]: Start accepts. Automaton has 32403 states and 134744 transitions. Word has length 21 [2021-08-21 19:01:18,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:18,766 INFO L470 AbstractCegarLoop]: Abstraction has 32403 states and 134744 transitions. [2021-08-21 19:01:18,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 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 19:01:18,768 INFO L276 IsEmpty]: Start isEmpty. Operand 32403 states and 134744 transitions. [2021-08-21 19:01:18,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-21 19:01:18,815 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:18,816 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] [2021-08-21 19:01:18,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 19:01:18,816 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 19:01:18,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:18,819 INFO L82 PathProgramCache]: Analyzing trace with hash -831905265, now seen corresponding path program 1 times [2021-08-21 19:01:18,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:18,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32195982] [2021-08-21 19:01:18,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:18,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:19,388 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 19:01:19,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:19,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32195982] [2021-08-21 19:01:19,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32195982] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:19,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:19,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-21 19:01:19,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64130575] [2021-08-21 19:01:19,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-21 19:01:19,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:19,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-21 19:01:19,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-08-21 19:01:19,390 INFO L87 Difference]: Start difference. First operand 32403 states and 134744 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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 19:01:20,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:20,101 INFO L93 Difference]: Finished difference Result 51663 states and 225339 transitions. [2021-08-21 19:01:20,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 19:01:20,101 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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 24 [2021-08-21 19:01:20,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:20,607 INFO L225 Difference]: With dead ends: 51663 [2021-08-21 19:01:20,607 INFO L226 Difference]: Without dead ends: 38717 [2021-08-21 19:01:20,608 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 83.1ms TimeCoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-08-21 19:01:20,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38717 states. [2021-08-21 19:01:21,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38717 to 27195. [2021-08-21 19:01:21,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27195 states, 25494 states have (on average 4.217619832117361) internal successors, (107524), 27194 states have internal predecessors, (107524), 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 19:01:21,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27195 states to 27195 states and 107524 transitions. [2021-08-21 19:01:21,456 INFO L78 Accepts]: Start accepts. Automaton has 27195 states and 107524 transitions. Word has length 24 [2021-08-21 19:01:21,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:21,457 INFO L470 AbstractCegarLoop]: Abstraction has 27195 states and 107524 transitions. [2021-08-21 19:01:21,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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 19:01:21,484 INFO L276 IsEmpty]: Start isEmpty. Operand 27195 states and 107524 transitions. [2021-08-21 19:01:21,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-21 19:01:21,541 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:21,544 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] [2021-08-21 19:01:21,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 19:01:21,545 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 19:01:21,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:21,545 INFO L82 PathProgramCache]: Analyzing trace with hash -771593618, now seen corresponding path program 1 times [2021-08-21 19:01:21,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:21,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131259850] [2021-08-21 19:01:21,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:21,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:21,769 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 19:01:21,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:21,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131259850] [2021-08-21 19:01:21,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131259850] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:21,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:21,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-21 19:01:21,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610507399] [2021-08-21 19:01:21,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-21 19:01:21,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:21,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-21 19:01:21,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-08-21 19:01:21,770 INFO L87 Difference]: Start difference. First operand 27195 states and 107524 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:22,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:22,516 INFO L93 Difference]: Finished difference Result 38659 states and 164951 transitions. [2021-08-21 19:01:22,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 19:01:22,516 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-08-21 19:01:22,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:22,604 INFO L225 Difference]: With dead ends: 38659 [2021-08-21 19:01:22,604 INFO L226 Difference]: Without dead ends: 24422 [2021-08-21 19:01:22,604 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 78.2ms TimeCoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-08-21 19:01:22,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24422 states. [2021-08-21 19:01:23,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24422 to 18659. [2021-08-21 19:01:23,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18659 states, 17201 states have (on average 3.93738736119993) internal successors, (67727), 18658 states have internal predecessors, (67727), 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 19:01:23,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18659 states to 18659 states and 67727 transitions. [2021-08-21 19:01:23,299 INFO L78 Accepts]: Start accepts. Automaton has 18659 states and 67727 transitions. Word has length 27 [2021-08-21 19:01:23,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:23,299 INFO L470 AbstractCegarLoop]: Abstraction has 18659 states and 67727 transitions. [2021-08-21 19:01:23,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:23,299 INFO L276 IsEmpty]: Start isEmpty. Operand 18659 states and 67727 transitions. [2021-08-21 19:01:23,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-21 19:01:23,318 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:23,318 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, 1, 1] [2021-08-21 19:01:23,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-21 19:01:23,318 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 19:01:23,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:23,319 INFO L82 PathProgramCache]: Analyzing trace with hash 442163477, now seen corresponding path program 1 times [2021-08-21 19:01:23,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:23,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854422792] [2021-08-21 19:01:23,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:23,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:23,480 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 19:01:23,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:23,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854422792] [2021-08-21 19:01:23,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854422792] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:23,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:23,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-21 19:01:23,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119620847] [2021-08-21 19:01:23,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-21 19:01:23,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:23,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-21 19:01:23,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=67, Unknown=0, NotChecked=0, Total=132 [2021-08-21 19:01:23,481 INFO L87 Difference]: Start difference. First operand 18659 states and 67727 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 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 19:01:23,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:23,751 INFO L93 Difference]: Finished difference Result 12827 states and 61895 transitions. [2021-08-21 19:01:23,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-21 19:01:23,752 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 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 30 [2021-08-21 19:01:23,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:23,752 INFO L225 Difference]: With dead ends: 12827 [2021-08-21 19:01:23,752 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 19:01:23,752 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 72.4ms TimeCoverageRelationStatistics Valid=65, Invalid=67, Unknown=0, NotChecked=0, Total=132 [2021-08-21 19:01:23,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 19:01:23,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 19:01:23,752 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 19:01:23,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 19:01:23,753 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2021-08-21 19:01:23,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:23,753 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 19:01:23,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 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 19:01:23,753 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 19:01:23,753 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 19:01:23,755 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:01:23,755 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 19:01:23,756 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 19:01:23,756 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 19:01:23,756 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-21 19:01:23,756 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-21 19:01:23,756 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-21 19:01:23,756 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION [2021-08-21 19:01:23,756 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATION [2021-08-21 19:01:23,756 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:01:23,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-21 19:01:23,760 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 19:01:23,761 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 19:01:23,762 INFO L202 PluginConnector]: Adding new model bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:01:23 BasicIcfg [2021-08-21 19:01:23,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 19:01:23,763 INFO L168 Benchmark]: Toolchain (without parser) took 25687.74 ms. Allocated memory was 180.4 MB in the beginning and 7.6 GB in the end (delta: 7.4 GB). Free memory was 160.9 MB in the beginning and 5.3 GB in the end (delta: -5.1 GB). Peak memory consumption was 2.3 GB. Max. memory is 8.0 GB. [2021-08-21 19:01:23,763 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 180.4 MB. Free memory was 162.1 MB in the beginning and 162.0 MB in the end (delta: 88.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 19:01:23,763 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.63 ms. Allocated memory is still 180.4 MB. Free memory was 160.8 MB in the beginning and 159.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 19:01:23,764 INFO L168 Benchmark]: Boogie Preprocessor took 20.04 ms. Allocated memory is still 180.4 MB. Free memory was 159.0 MB in the beginning and 158.1 MB in the end (delta: 902.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 19:01:23,764 INFO L168 Benchmark]: RCFGBuilder took 461.00 ms. Allocated memory is still 180.4 MB. Free memory was 158.0 MB in the beginning and 142.2 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-08-21 19:01:23,764 INFO L168 Benchmark]: TraceAbstraction took 25138.51 ms. Allocated memory was 180.4 MB in the beginning and 7.6 GB in the end (delta: 7.4 GB). Free memory was 141.7 MB in the beginning and 5.3 GB in the end (delta: -5.1 GB). Peak memory consumption was 2.3 GB. Max. memory is 8.0 GB. [2021-08-21 19:01:23,765 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 180.4 MB. Free memory was 162.1 MB in the beginning and 162.0 MB in the end (delta: 88.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 55.63 ms. Allocated memory is still 180.4 MB. Free memory was 160.8 MB in the beginning and 159.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.04 ms. Allocated memory is still 180.4 MB. Free memory was 159.0 MB in the beginning and 158.1 MB in the end (delta: 902.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 461.00 ms. Allocated memory is still 180.4 MB. Free memory was 158.0 MB in the beginning and 142.2 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 25138.51 ms. Allocated memory was 180.4 MB in the beginning and 7.6 GB in the end (delta: 7.4 GB). Free memory was 141.7 MB in the beginning and 5.3 GB in the end (delta: -5.1 GB). Peak memory consumption was 2.3 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 625949, positive: 525044, positive conditional: 525044, positive unconditional: 0, negative: 100905, negative conditional: 100905, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 595635, positive: 525044, positive conditional: 0, positive unconditional: 525044, negative: 70591, negative conditional: 0, negative unconditional: 70591, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 606, positive: 520, positive conditional: 0, positive unconditional: 520, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 606, positive: 456, positive conditional: 0, positive unconditional: 456, negative: 150, negative conditional: 0, negative unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 150, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 398, positive: 208, positive conditional: 0, positive unconditional: 208, negative: 191, negative conditional: 0, negative unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 595635, positive: 524524, positive conditional: 0, positive unconditional: 524524, negative: 70505, negative conditional: 0, negative unconditional: 70505, unknown: 606, unknown conditional: 0, unknown unconditional: 606] , Statistics on independence cache: Total cache size (in pairs): 606, Positive cache size: 520, Positive conditional cache size: 0, Positive unconditional cache size: 520, Negative cache size: 86, Negative conditional cache size: 0, Negative unconditional cache size: 86, Independence queries for same thread: 30314 - 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: 25002.6ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 345.2ms, AutomataDifference: 8948.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4351.5ms, PartialOrderReductionTime: 4338.6ms, HoareTripleCheckerStatistics: 446 SDtfs, 723 SDslu, 736 SDs, 0 SdLazy, 1169 SolverSat, 542 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 947.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 357.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=46869occurred in iteration=2, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 9693.9ms AutomataMinimizationTime, 9 MinimizatonAttempts, 67874 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.4ms SsaConstructionTime, 104.3ms SatisfiabilityAnalysisTime, 1367.1ms InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 724 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 19:01:23,785 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...