/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-correct05.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 15:39:01,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 15:39:01,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 15:39:01,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 15:39:01,658 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 [2021-08-06 15:39:01,686 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 15:39:01,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 15:39:01,687 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-06 15:39:01,687 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-06 15:39:01,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 15:39:01,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 15:39:01,689 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 15:39:01,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 15:39:01,690 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 15:39:01,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 15:39:01,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 15:39:01,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 15:39:01,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 15:39:01,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 15:39:01,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 15:39:01,691 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 15:39:01,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 15:39:01,691 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 15:39:01,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 15:39:01,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 15:39:01,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 15:39:01,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 15:39:01,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 15:39:01,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 15:39:01,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 15:39:01,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 15:39:01,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 15:39:01,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 15:39:01,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 15:39:01,693 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 15:39:01,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 15:39:01,693 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 15:39:01,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 15:39:01,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 15:39:01,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 15:39:01,980 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-06 15:39:01,981 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-06 15:39:01,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct05.bpl [2021-08-06 15:39:01,982 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct05.bpl' [2021-08-06 15:39:01,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 15:39:01,998 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-06 15:39:01,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 15:39:01,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 15:39:01,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 15:39:02,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:01" (1/1) ... [2021-08-06 15:39:02,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:01" (1/1) ... [2021-08-06 15:39:02,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 15:39:02,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 15:39:02,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 15:39:02,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 15:39:02,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:01" (1/1) ... [2021-08-06 15:39:02,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:01" (1/1) ... [2021-08-06 15:39:02,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:01" (1/1) ... [2021-08-06 15:39:02,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:01" (1/1) ... [2021-08-06 15:39:02,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:01" (1/1) ... [2021-08-06 15:39:02,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:01" (1/1) ... [2021-08-06 15:39:02,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:01" (1/1) ... [2021-08-06 15:39:02,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 15:39:02,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 15:39:02,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 15:39:02,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 15:39:02,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:01" (1/1) ... [2021-08-06 15:39:02,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 15:39:02,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 15:39:02,080 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) [2021-08-06 15:39:02,102 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 [2021-08-06 15:39:02,132 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-06 15:39:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-06 15:39:02,133 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-06 15:39:02,133 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-06 15:39:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-06 15:39:02,133 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-06 15:39:02,133 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-06 15:39:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-06 15:39:02,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-06 15:39:02,134 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-06 15:39:02,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 15:39:02,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 15:39:02,135 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-06 15:39:02,338 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 15:39:02,338 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-06 15:39:02,338 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-08-06 15:39:02,339 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-08-06 15:39:02,340 INFO L202 PluginConnector]: Adding new model bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 03:39:02 BoogieIcfgContainer [2021-08-06 15:39:02,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 15:39:02,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 15:39:02,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 15:39:02,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 15:39:02,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:01" (1/2) ... [2021-08-06 15:39:02,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8695ce and model type bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 03:39:02, skipping insertion in model container [2021-08-06 15:39:02,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 03:39:02" (2/2) ... [2021-08-06 15:39:02,345 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct05.bpl [2021-08-06 15:39:02,348 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 15:39:02,348 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 15:39:02,348 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 15:39:02,348 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 15:39:02,408 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-06 15:39:02,450 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 15:39:02,456 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 [2021-08-06 15:39:02,456 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-06 15:39:02,465 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 39 transitions, 108 flow [2021-08-06 15:39:02,550 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1211 states, 1209 states have (on average 4.686517783291976) internal successors, (5666), 1210 states have internal predecessors, (5666), 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) [2021-08-06 15:39:02,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 1211 states, 1209 states have (on average 4.686517783291976) internal successors, (5666), 1210 states have internal predecessors, (5666), 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) [2021-08-06 15:39:02,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 15:39:02,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 15:39:02,576 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 15:39:02,576 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-06 15:39:02,576 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-06 15:39:02,576 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-06 15:39:02,576 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-06 15:39:02,579 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2021-08-06 15:39:02,581 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1 ======== [2021-08-06 15:39:02,582 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 [2021-08-06 15:39:02,582 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-06 15:39:02,583 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 39 transitions, 108 flow [2021-08-06 15:39:02,748 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4859 states, 4858 states have (on average 6.135858377933306) internal successors, (29808), 4858 states have internal predecessors, (29808), 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) [2021-08-06 15:39:02,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 4859 states, 4858 states have (on average 6.135858377933306) internal successors, (29808), 4858 states have internal predecessors, (29808), 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) [2021-08-06 15:39:02,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-06 15:39:02,772 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:02,773 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 15:39:02,773 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:02,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:02,777 INFO L82 PathProgramCache]: Analyzing trace with hash -385014472, now seen corresponding path program 1 times [2021-08-06 15:39:02,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:02,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157282314] [2021-08-06 15:39:02,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:02,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:02,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 15:39:02,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:02,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157282314] [2021-08-06 15:39:02,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157282314] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:02,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:02,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-06 15:39:02,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562203641] [2021-08-06 15:39:02,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-06 15:39:02,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:02,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-06 15:39:02,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 15:39:02,891 INFO L87 Difference]: Start difference. First operand has 4859 states, 4858 states have (on average 6.135858377933306) internal successors, (29808), 4858 states have internal predecessors, (29808), 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) [2021-08-06 15:39:03,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:03,055 INFO L93 Difference]: Finished difference Result 5263 states and 31752 transitions. [2021-08-06 15:39:03,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-06 15:39:03,057 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 [2021-08-06 15:39:03,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:03,109 INFO L225 Difference]: With dead ends: 5263 [2021-08-06 15:39:03,109 INFO L226 Difference]: Without dead ends: 4051 [2021-08-06 15:39:03,110 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 15:39:03,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4051 states. [2021-08-06 15:39:03,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4051 to 4051. [2021-08-06 15:39:03,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4051 states, 4050 states have (on average 6.000987654320988) internal successors, (24304), 4050 states have internal predecessors, (24304), 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) [2021-08-06 15:39:03,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4051 states to 4051 states and 24304 transitions. [2021-08-06 15:39:03,408 INFO L78 Accepts]: Start accepts. Automaton has 4051 states and 24304 transitions. Word has length 8 [2021-08-06 15:39:03,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:39:03,408 INFO L470 AbstractCegarLoop]: Abstraction has 4051 states and 24304 transitions. [2021-08-06 15:39:03,409 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) [2021-08-06 15:39:03,409 INFO L276 IsEmpty]: Start isEmpty. Operand 4051 states and 24304 transitions. [2021-08-06 15:39:03,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-06 15:39:03,412 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:03,412 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 15:39:03,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 15:39:03,413 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:03,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:03,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1032101034, now seen corresponding path program 1 times [2021-08-06 15:39:03,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:03,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651862007] [2021-08-06 15:39:03,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:03,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:03,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 15:39:03,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:03,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651862007] [2021-08-06 15:39:03,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651862007] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:03,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:03,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-06 15:39:03,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497158251] [2021-08-06 15:39:03,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-06 15:39:03,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:03,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-06 15:39:03,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 15:39:03,450 INFO L87 Difference]: Start difference. First operand 4051 states and 24304 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) [2021-08-06 15:39:03,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:03,500 INFO L93 Difference]: Finished difference Result 4051 states and 19044 transitions. [2021-08-06 15:39:03,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-06 15:39:03,500 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 [2021-08-06 15:39:03,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:03,513 INFO L225 Difference]: With dead ends: 4051 [2021-08-06 15:39:03,514 INFO L226 Difference]: Without dead ends: 2026 [2021-08-06 15:39:03,515 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 15:39:03,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2021-08-06 15:39:03,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 2026. [2021-08-06 15:39:03,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2026 states, 2025 states have (on average 4.537283950617284) internal successors, (9188), 2025 states have internal predecessors, (9188), 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) [2021-08-06 15:39:03,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2026 states to 2026 states and 9188 transitions. [2021-08-06 15:39:03,620 INFO L78 Accepts]: Start accepts. Automaton has 2026 states and 9188 transitions. Word has length 12 [2021-08-06 15:39:03,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:39:03,620 INFO L470 AbstractCegarLoop]: Abstraction has 2026 states and 9188 transitions. [2021-08-06 15:39:03,620 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) [2021-08-06 15:39:03,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2026 states and 9188 transitions. [2021-08-06 15:39:03,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-06 15:39:03,621 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:03,621 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 15:39:03,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-06 15:39:03,622 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:03,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:03,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1475391114, now seen corresponding path program 2 times [2021-08-06 15:39:03,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:03,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795819397] [2021-08-06 15:39:03,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:03,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:03,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 15:39:03,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:03,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795819397] [2021-08-06 15:39:03,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795819397] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:03,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:03,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-06 15:39:03,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348176965] [2021-08-06 15:39:03,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 15:39:03,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:03,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 15:39:03,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-06 15:39:03,750 INFO L87 Difference]: Start difference. First operand 2026 states and 9188 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) [2021-08-06 15:39:03,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:03,895 INFO L93 Difference]: Finished difference Result 3769 states and 17955 transitions. [2021-08-06 15:39:03,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-06 15:39:03,895 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 [2021-08-06 15:39:03,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:03,918 INFO L225 Difference]: With dead ends: 3769 [2021-08-06 15:39:03,918 INFO L226 Difference]: Without dead ends: 3669 [2021-08-06 15:39:03,918 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 19.4ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-06 15:39:03,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3669 states. [2021-08-06 15:39:04,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3669 to 3413. [2021-08-06 15:39:04,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3412 states have (on average 4.857561547479484) internal successors, (16574), 3412 states have internal predecessors, (16574), 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) [2021-08-06 15:39:04,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 16574 transitions. [2021-08-06 15:39:04,028 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 16574 transitions. Word has length 12 [2021-08-06 15:39:04,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:39:04,028 INFO L470 AbstractCegarLoop]: Abstraction has 3413 states and 16574 transitions. [2021-08-06 15:39:04,028 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) [2021-08-06 15:39:04,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 16574 transitions. [2021-08-06 15:39:04,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-06 15:39:04,031 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:04,032 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 15:39:04,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-06 15:39:04,032 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:04,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:04,032 INFO L82 PathProgramCache]: Analyzing trace with hash -931281047, now seen corresponding path program 1 times [2021-08-06 15:39:04,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:04,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934219374] [2021-08-06 15:39:04,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:04,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:04,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 15:39:04,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:04,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934219374] [2021-08-06 15:39:04,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934219374] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:04,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:04,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 15:39:04,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124426640] [2021-08-06 15:39:04,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 15:39:04,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:04,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 15:39:04,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-06 15:39:04,092 INFO L87 Difference]: Start difference. First operand 3413 states and 16574 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) [2021-08-06 15:39:04,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:04,206 INFO L93 Difference]: Finished difference Result 5716 states and 28113 transitions. [2021-08-06 15:39:04,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-06 15:39:04,206 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 [2021-08-06 15:39:04,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:04,230 INFO L225 Difference]: With dead ends: 5716 [2021-08-06 15:39:04,231 INFO L226 Difference]: Without dead ends: 5166 [2021-08-06 15:39:04,231 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 19.2ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-06 15:39:04,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-08-06 15:39:04,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 3799. [2021-08-06 15:39:04,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3799 states, 3798 states have (on average 4.902580305423907) internal successors, (18620), 3798 states have internal predecessors, (18620), 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) [2021-08-06 15:39:04,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3799 states to 3799 states and 18620 transitions. [2021-08-06 15:39:04,391 INFO L78 Accepts]: Start accepts. Automaton has 3799 states and 18620 transitions. Word has length 15 [2021-08-06 15:39:04,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:39:04,401 INFO L470 AbstractCegarLoop]: Abstraction has 3799 states and 18620 transitions. [2021-08-06 15:39:04,402 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) [2021-08-06 15:39:04,402 INFO L276 IsEmpty]: Start isEmpty. Operand 3799 states and 18620 transitions. [2021-08-06 15:39:04,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-06 15:39:04,407 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:04,407 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 15:39:04,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-06 15:39:04,408 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:04,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:04,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1178074314, now seen corresponding path program 1 times [2021-08-06 15:39:04,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:04,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140990187] [2021-08-06 15:39:04,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:04,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:04,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 15:39:04,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:04,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140990187] [2021-08-06 15:39:04,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140990187] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:04,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:04,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 15:39:04,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115601977] [2021-08-06 15:39:04,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 15:39:04,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:04,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 15:39:04,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-06 15:39:04,534 INFO L87 Difference]: Start difference. First operand 3799 states and 18620 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) [2021-08-06 15:39:04,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:04,715 INFO L93 Difference]: Finished difference Result 6000 states and 29705 transitions. [2021-08-06 15:39:04,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 15:39:04,716 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 [2021-08-06 15:39:04,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:04,736 INFO L225 Difference]: With dead ends: 6000 [2021-08-06 15:39:04,737 INFO L226 Difference]: Without dead ends: 4818 [2021-08-06 15:39:04,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 26.5ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-06 15:39:04,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2021-08-06 15:39:04,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 3495. [2021-08-06 15:39:04,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3495 states, 3494 states have (on average 4.896107613050945) internal successors, (17107), 3494 states have internal predecessors, (17107), 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) [2021-08-06 15:39:04,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3495 states to 3495 states and 17107 transitions. [2021-08-06 15:39:04,843 INFO L78 Accepts]: Start accepts. Automaton has 3495 states and 17107 transitions. Word has length 18 [2021-08-06 15:39:04,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:39:04,843 INFO L470 AbstractCegarLoop]: Abstraction has 3495 states and 17107 transitions. [2021-08-06 15:39:04,843 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) [2021-08-06 15:39:04,843 INFO L276 IsEmpty]: Start isEmpty. Operand 3495 states and 17107 transitions. [2021-08-06 15:39:04,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-06 15:39:04,849 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:04,849 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] [2021-08-06 15:39:04,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-06 15:39:04,850 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:04,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:04,850 INFO L82 PathProgramCache]: Analyzing trace with hash 306519297, now seen corresponding path program 1 times [2021-08-06 15:39:04,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:04,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731809489] [2021-08-06 15:39:04,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:04,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:04,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 15:39:04,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:04,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731809489] [2021-08-06 15:39:04,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731809489] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:04,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:04,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 15:39:04,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474157310] [2021-08-06 15:39:04,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-06 15:39:04,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:04,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-06 15:39:04,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-08-06 15:39:04,958 INFO L87 Difference]: Start difference. First operand 3495 states and 17107 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) [2021-08-06 15:39:05,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:05,165 INFO L93 Difference]: Finished difference Result 4908 states and 24286 transitions. [2021-08-06 15:39:05,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 15:39:05,166 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 [2021-08-06 15:39:05,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:05,179 INFO L225 Difference]: With dead ends: 4908 [2021-08-06 15:39:05,179 INFO L226 Difference]: Without dead ends: 3160 [2021-08-06 15:39:05,179 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 38.6ms TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-08-06 15:39:05,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3160 states. [2021-08-06 15:39:05,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3160 to 2473. [2021-08-06 15:39:05,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2472 states have (on average 4.81836569579288) internal successors, (11911), 2472 states have internal predecessors, (11911), 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) [2021-08-06 15:39:05,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 11911 transitions. [2021-08-06 15:39:05,238 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 11911 transitions. Word has length 21 [2021-08-06 15:39:05,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:39:05,238 INFO L470 AbstractCegarLoop]: Abstraction has 2473 states and 11911 transitions. [2021-08-06 15:39:05,238 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) [2021-08-06 15:39:05,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 11911 transitions. [2021-08-06 15:39:05,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-06 15:39:05,242 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:05,242 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] [2021-08-06 15:39:05,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-06 15:39:05,242 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:05,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:05,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1442326028, now seen corresponding path program 1 times [2021-08-06 15:39:05,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:05,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332396684] [2021-08-06 15:39:05,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:05,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:05,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 15:39:05,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:05,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332396684] [2021-08-06 15:39:05,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332396684] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:05,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:05,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-06 15:39:05,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095885756] [2021-08-06 15:39:05,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-06 15:39:05,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:05,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-06 15:39:05,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-08-06 15:39:05,391 INFO L87 Difference]: Start difference. First operand 2473 states and 11911 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) [2021-08-06 15:39:05,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:05,505 INFO L93 Difference]: Finished difference Result 1663 states and 8374 transitions. [2021-08-06 15:39:05,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 15:39:05,506 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 [2021-08-06 15:39:05,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:05,506 INFO L225 Difference]: With dead ends: 1663 [2021-08-06 15:39:05,506 INFO L226 Difference]: Without dead ends: 0 [2021-08-06 15:39:05,506 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 50.6ms TimeCoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-08-06 15:39:05,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-06 15:39:05,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-06 15:39:05,507 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) [2021-08-06 15:39:05,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-06 15:39:05,507 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2021-08-06 15:39:05,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:39:05,507 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-06 15:39:05,507 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) [2021-08-06 15:39:05,507 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-06 15:39:05,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 15:39:05,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-06 15:39:05,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-06 15:39:05,508 INFO L308 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was SAFE (2/2) [2021-08-06 15:39:05,508 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 15:39:05,508 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 15:39:05,510 INFO L202 PluginConnector]: Adding new model bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 03:39:05 BasicIcfg [2021-08-06 15:39:05,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 15:39:05,510 INFO L168 Benchmark]: Toolchain (without parser) took 3512.11 ms. Allocated memory was 181.4 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 161.9 MB in the beginning and 901.0 MB in the end (delta: -739.1 MB). Peak memory consumption was 275.4 MB. Max. memory is 8.0 GB. [2021-08-06 15:39:05,511 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 181.4 MB. Free memory was 163.1 MB in the beginning and 163.0 MB in the end (delta: 68.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 15:39:05,511 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.55 ms. Allocated memory is still 181.4 MB. Free memory was 161.8 MB in the beginning and 159.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-06 15:39:05,511 INFO L168 Benchmark]: Boogie Preprocessor took 9.38 ms. Allocated memory is still 181.4 MB. Free memory was 159.9 MB in the beginning and 159.0 MB in the end (delta: 963.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-06 15:39:05,511 INFO L168 Benchmark]: RCFGBuilder took 293.10 ms. Allocated memory is still 181.4 MB. Free memory was 159.0 MB in the beginning and 143.5 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-08-06 15:39:05,511 INFO L168 Benchmark]: TraceAbstraction took 3168.68 ms. Allocated memory was 181.4 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 143.1 MB in the beginning and 901.0 MB in the end (delta: -758.0 MB). Peak memory consumption was 256.5 MB. Max. memory is 8.0 GB. [2021-08-06 15:39:05,512 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 181.4 MB. Free memory was 163.1 MB in the beginning and 163.0 MB in the end (delta: 68.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 37.55 ms. Allocated memory is still 181.4 MB. Free memory was 161.8 MB in the beginning and 159.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.38 ms. Allocated memory is still 181.4 MB. Free memory was 159.9 MB in the beginning and 159.0 MB in the end (delta: 963.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 293.10 ms. Allocated memory is still 181.4 MB. Free memory was 159.0 MB in the beginning and 143.5 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3168.68 ms. Allocated memory was 181.4 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 143.1 MB in the beginning and 901.0 MB in the end (delta: -758.0 MB). Peak memory consumption was 256.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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: 38]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 10 procedures, 55 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 129.6ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 23.5ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 93.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1211occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadWithAssertThread1of1ForFork1 with 1 thread instances CFG has 10 procedures, 55 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2926.7ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 45.9ms, AutomataDifference: 1152.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 166.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 286 SDtfs, 390 SDslu, 405 SDs, 0 SdLazy, 480 SolverSat, 235 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 400.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 162.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4859occurred in iteration=0, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 828.4ms AutomataMinimizationTime, 7 MinimizatonAttempts, 3633 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.7ms SsaConstructionTime, 72.2ms SatisfiabilityAnalysisTime, 547.7ms InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2021-08-06 15:39:05,539 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...