/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-correct07.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 15:39:20,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 15:39:20,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 15:39:20,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 15:39:20,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-06 15:39:20,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-06 15:39:20,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-06 15:39:20,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-06 15:39:20,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-06 15:39:20,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-06 15:39:20,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-06 15:39:20,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-06 15:39:20,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-06 15:39:20,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-06 15:39:20,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-06 15:39:20,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-06 15:39:20,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-06 15:39:20,496 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 15:39:20,526 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 15:39:20,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 15:39:20,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-06 15:39:20,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-06 15:39:20,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 15:39:20,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 15:39:20,529 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 15:39:20,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 15:39:20,530 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 15:39:20,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 15:39:20,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 15:39:20,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 15:39:20,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 15:39:20,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 15:39:20,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 15:39:20,531 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 15:39:20,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 15:39:20,531 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 15:39:20,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 15:39:20,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 15:39:20,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 15:39:20,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 15:39:20,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 15:39:20,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 15:39:20,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 15:39:20,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 15:39:20,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 15:39:20,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 15:39:20,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 15:39:20,532 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 15:39:20,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 15:39:20,532 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 15:39:20,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 15:39:20,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 15:39:20,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 15:39:20,803 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-06 15:39:20,804 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-06 15:39:20,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct07.bpl [2021-08-06 15:39:20,805 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct07.bpl' [2021-08-06 15:39:20,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 15:39:20,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-06 15:39:20,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 15:39:20,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 15:39:20,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 15:39:20,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:20" (1/1) ... [2021-08-06 15:39:20,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:20" (1/1) ... [2021-08-06 15:39:20,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 15:39:20,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 15:39:20,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 15:39:20,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 15:39:20,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:20" (1/1) ... [2021-08-06 15:39:20,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:20" (1/1) ... [2021-08-06 15:39:20,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:20" (1/1) ... [2021-08-06 15:39:20,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:20" (1/1) ... [2021-08-06 15:39:20,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:20" (1/1) ... [2021-08-06 15:39:20,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:20" (1/1) ... [2021-08-06 15:39:20,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:20" (1/1) ... [2021-08-06 15:39:20,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 15:39:20,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 15:39:20,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 15:39:20,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 15:39:20,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:20" (1/1) ... [2021-08-06 15:39:20,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 15:39:20,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 15:39:20,887 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 15:39:20,899 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 15:39:20,913 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-06 15:39:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-06 15:39:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-06 15:39:20,913 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-06 15:39:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-06 15:39:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-06 15:39:20,913 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-06 15:39:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-06 15:39:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-06 15:39:20,914 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-06 15:39:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 15:39:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 15:39:20,915 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 15:39:21,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 15:39:21,188 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-06 15:39:21,188 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-08-06 15:39:21,203 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-08-06 15:39:21,205 INFO L202 PluginConnector]: Adding new model bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 03:39:21 BoogieIcfgContainer [2021-08-06 15:39:21,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 15:39:21,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 15:39:21,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 15:39:21,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 15:39:21,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:20" (1/2) ... [2021-08-06 15:39:21,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0c8c3a and model type bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 03:39:21, skipping insertion in model container [2021-08-06 15:39:21,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 03:39:21" (2/2) ... [2021-08-06 15:39:21,210 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct07.bpl [2021-08-06 15:39:21,214 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 15:39:21,214 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 15:39:21,214 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 15:39:21,214 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 15:39:21,248 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-06 15:39:21,286 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 15:39:21,292 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 15:39:21,292 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-08-06 15:39:21,302 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 49 transitions, 138 flow [2021-08-06 15:39:21,955 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 10931 states, 10929 states have (on average 6.669960655137707) internal successors, (72896), 10930 states have internal predecessors, (72896), 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 15:39:21,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 10931 states, 10929 states have (on average 6.669960655137707) internal successors, (72896), 10930 states have internal predecessors, (72896), 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 15:39:22,118 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 15:39:22,122 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 15:39:22,122 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 15:39:22,123 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-06 15:39:22,123 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-06 15:39:22,123 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-06 15:39:22,123 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-06 15:39:22,123 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION [2021-08-06 15:39:22,123 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATION [2021-08-06 15:39:22,130 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2021-08-06 15:39:22,137 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1 ======== [2021-08-06 15:39:22,142 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 15:39:22,142 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-06 15:39:22,146 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 49 transitions, 138 flow [2021-08-06 15:39:24,402 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 43739 states, 43738 states have (on average 8.133705244867164) internal successors, (355752), 43738 states have internal predecessors, (355752), 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 15:39:24,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 43739 states, 43738 states have (on average 8.133705244867164) internal successors, (355752), 43738 states have internal predecessors, (355752), 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 15:39:24,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-06 15:39:24,501 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:24,502 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 15:39:24,502 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:24,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:24,506 INFO L82 PathProgramCache]: Analyzing trace with hash 425563323, now seen corresponding path program 1 times [2021-08-06 15:39:24,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:24,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216708113] [2021-08-06 15:39:24,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:24,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:24,590 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 15:39:24,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:24,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216708113] [2021-08-06 15:39:24,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216708113] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:24,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:24,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-06 15:39:24,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612984878] [2021-08-06 15:39:24,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-06 15:39:24,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:24,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-06 15:39:24,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 15:39:24,869 INFO L87 Difference]: Start difference. First operand has 43739 states, 43738 states have (on average 8.133705244867164) internal successors, (355752), 43738 states have internal predecessors, (355752), 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 15:39:26,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:26,026 INFO L93 Difference]: Finished difference Result 47383 states and 380538 transitions. [2021-08-06 15:39:26,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-06 15:39:26,028 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 15:39:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:26,750 INFO L225 Difference]: With dead ends: 47383 [2021-08-06 15:39:26,750 INFO L226 Difference]: Without dead ends: 36451 [2021-08-06 15:39:26,751 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 15:39:26,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36451 states. [2021-08-06 15:39:28,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36451 to 36451. [2021-08-06 15:39:29,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36451 states, 36450 states have (on average 8.000109739368998) internal successors, (291604), 36450 states have internal predecessors, (291604), 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 15:39:29,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36451 states to 36451 states and 291604 transitions. [2021-08-06 15:39:29,762 INFO L78 Accepts]: Start accepts. Automaton has 36451 states and 291604 transitions. Word has length 8 [2021-08-06 15:39:29,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:39:29,762 INFO L470 AbstractCegarLoop]: Abstraction has 36451 states and 291604 transitions. [2021-08-06 15:39:29,762 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 15:39:29,762 INFO L276 IsEmpty]: Start isEmpty. Operand 36451 states and 291604 transitions. [2021-08-06 15:39:29,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-06 15:39:29,765 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:29,765 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 15:39:29,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 15:39:29,766 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:29,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:29,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1411352313, now seen corresponding path program 1 times [2021-08-06 15:39:29,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:29,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782202915] [2021-08-06 15:39:29,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:29,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:29,831 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 15:39:29,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:29,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782202915] [2021-08-06 15:39:29,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782202915] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:29,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:29,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-06 15:39:29,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742048152] [2021-08-06 15:39:29,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 15:39:29,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:29,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 15:39:29,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-06 15:39:29,834 INFO L87 Difference]: Start difference. First operand 36451 states and 291604 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 15:39:31,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:31,206 INFO L93 Difference]: Finished difference Result 67550 states and 540565 transitions. [2021-08-06 15:39:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-06 15:39:31,207 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 15:39:31,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:32,137 INFO L225 Difference]: With dead ends: 67550 [2021-08-06 15:39:32,138 INFO L226 Difference]: Without dead ends: 67550 [2021-08-06 15:39:32,139 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 16.8ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-06 15:39:32,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67550 states. [2021-08-06 15:39:36,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67550 to 67046. [2021-08-06 15:39:36,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67046 states, 67045 states have (on average 8.021731672757104) internal successors, (537817), 67045 states have internal predecessors, (537817), 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 15:39:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67046 states to 67046 states and 537817 transitions. [2021-08-06 15:39:37,510 INFO L78 Accepts]: Start accepts. Automaton has 67046 states and 537817 transitions. Word has length 12 [2021-08-06 15:39:37,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:39:37,511 INFO L470 AbstractCegarLoop]: Abstraction has 67046 states and 537817 transitions. [2021-08-06 15:39:37,511 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 15:39:37,511 INFO L276 IsEmpty]: Start isEmpty. Operand 67046 states and 537817 transitions. [2021-08-06 15:39:37,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-06 15:39:37,513 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:37,513 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 15:39:37,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-06 15:39:37,513 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:37,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:37,514 INFO L82 PathProgramCache]: Analyzing trace with hash 2041431963, now seen corresponding path program 2 times [2021-08-06 15:39:37,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:37,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321300962] [2021-08-06 15:39:37,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:37,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:37,530 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 15:39:37,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:37,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321300962] [2021-08-06 15:39:37,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321300962] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:37,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:37,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-06 15:39:37,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829220567] [2021-08-06 15:39:37,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-06 15:39:37,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:37,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-06 15:39:37,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 15:39:37,531 INFO L87 Difference]: Start difference. First operand 67046 states and 537817 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 15:39:39,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:39,008 INFO L93 Difference]: Finished difference Result 62656 states and 402418 transitions. [2021-08-06 15:39:39,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-06 15:39:39,009 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 15:39:39,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:39,375 INFO L225 Difference]: With dead ends: 62656 [2021-08-06 15:39:39,375 INFO L226 Difference]: Without dead ends: 33633 [2021-08-06 15:39:39,378 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 15:39:39,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33633 states. [2021-08-06 15:39:40,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33633 to 31945. [2021-08-06 15:39:41,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31945 states, 31944 states have (on average 6.497088655146507) internal successors, (207543), 31944 states have internal predecessors, (207543), 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 15:39:41,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31945 states to 31945 states and 207543 transitions. [2021-08-06 15:39:41,243 INFO L78 Accepts]: Start accepts. Automaton has 31945 states and 207543 transitions. Word has length 12 [2021-08-06 15:39:41,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:39:41,243 INFO L470 AbstractCegarLoop]: Abstraction has 31945 states and 207543 transitions. [2021-08-06 15:39:41,243 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 15:39:41,244 INFO L276 IsEmpty]: Start isEmpty. Operand 31945 states and 207543 transitions. [2021-08-06 15:39:41,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-06 15:39:41,249 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:41,249 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 15:39:41,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-06 15:39:41,249 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:41,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:41,250 INFO L82 PathProgramCache]: Analyzing trace with hash -733017338, now seen corresponding path program 1 times [2021-08-06 15:39:41,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:41,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25366842] [2021-08-06 15:39:41,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:41,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:41,323 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 15:39:41,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:41,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25366842] [2021-08-06 15:39:41,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25366842] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:41,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:41,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 15:39:41,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770262339] [2021-08-06 15:39:41,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 15:39:41,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:41,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 15:39:41,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-06 15:39:41,324 INFO L87 Difference]: Start difference. First operand 31945 states and 207543 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 15:39:42,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:42,391 INFO L93 Difference]: Finished difference Result 55538 states and 366050 transitions. [2021-08-06 15:39:42,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-06 15:39:42,401 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 15:39:42,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:43,241 INFO L225 Difference]: With dead ends: 55538 [2021-08-06 15:39:43,242 INFO L226 Difference]: Without dead ends: 52912 [2021-08-06 15:39:43,242 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 19.3ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-06 15:39:43,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52912 states. [2021-08-06 15:39:44,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52912 to 38337. [2021-08-06 15:39:45,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38337 states, 38336 states have (on average 6.553657136894825) internal successors, (251241), 38336 states have internal predecessors, (251241), 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 15:39:45,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38337 states to 38337 states and 251241 transitions. [2021-08-06 15:39:45,292 INFO L78 Accepts]: Start accepts. Automaton has 38337 states and 251241 transitions. Word has length 15 [2021-08-06 15:39:45,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:39:45,302 INFO L470 AbstractCegarLoop]: Abstraction has 38337 states and 251241 transitions. [2021-08-06 15:39:45,302 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 15:39:45,329 INFO L276 IsEmpty]: Start isEmpty. Operand 38337 states and 251241 transitions. [2021-08-06 15:39:45,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-06 15:39:45,368 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:45,369 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 15:39:45,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-06 15:39:45,369 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:45,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:45,370 INFO L82 PathProgramCache]: Analyzing trace with hash 18630227, now seen corresponding path program 1 times [2021-08-06 15:39:45,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:45,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683681290] [2021-08-06 15:39:45,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:45,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:45,486 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 15:39:45,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:45,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683681290] [2021-08-06 15:39:45,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683681290] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:45,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:45,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 15:39:45,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879158501] [2021-08-06 15:39:45,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 15:39:45,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:45,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 15:39:45,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-06 15:39:45,487 INFO L87 Difference]: Start difference. First operand 38337 states and 251241 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 15:39:47,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:47,140 INFO L93 Difference]: Finished difference Result 65964 states and 436782 transitions. [2021-08-06 15:39:47,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 15:39:47,141 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 15:39:47,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:47,533 INFO L225 Difference]: With dead ends: 65964 [2021-08-06 15:39:47,533 INFO L226 Difference]: Without dead ends: 59950 [2021-08-06 15:39:47,533 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 25.5ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-06 15:39:47,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59950 states. [2021-08-06 15:39:49,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59950 to 41041. [2021-08-06 15:39:49,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41041 states, 41040 states have (on average 6.58874269005848) internal successors, (270402), 41040 states have internal predecessors, (270402), 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 15:39:49,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41041 states to 41041 states and 270402 transitions. [2021-08-06 15:39:49,787 INFO L78 Accepts]: Start accepts. Automaton has 41041 states and 270402 transitions. Word has length 18 [2021-08-06 15:39:49,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:39:49,788 INFO L470 AbstractCegarLoop]: Abstraction has 41041 states and 270402 transitions. [2021-08-06 15:39:49,791 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 15:39:49,792 INFO L276 IsEmpty]: Start isEmpty. Operand 41041 states and 270402 transitions. [2021-08-06 15:39:49,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-06 15:39:49,870 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:49,870 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 15:39:49,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-06 15:39:49,870 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:49,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:49,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1732428758, now seen corresponding path program 1 times [2021-08-06 15:39:49,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:49,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9445503] [2021-08-06 15:39:49,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:49,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:50,025 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 15:39:50,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:50,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9445503] [2021-08-06 15:39:50,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9445503] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:50,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:50,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 15:39:50,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201110178] [2021-08-06 15:39:50,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-06 15:39:50,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:50,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-06 15:39:50,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-08-06 15:39:50,026 INFO L87 Difference]: Start difference. First operand 41041 states and 270402 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 15:39:51,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:51,826 INFO L93 Difference]: Finished difference Result 68144 states and 452773 transitions. [2021-08-06 15:39:51,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 15:39:51,837 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 15:39:51,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:52,227 INFO L225 Difference]: With dead ends: 68144 [2021-08-06 15:39:52,227 INFO L226 Difference]: Without dead ends: 57829 [2021-08-06 15:39:52,227 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 33.1ms TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-08-06 15:39:52,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57829 states. [2021-08-06 15:39:54,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57829 to 39147. [2021-08-06 15:39:54,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39147 states, 39146 states have (on average 6.575077913452205) internal successors, (257388), 39146 states have internal predecessors, (257388), 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 15:39:54,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39147 states to 39147 states and 257388 transitions. [2021-08-06 15:39:54,693 INFO L78 Accepts]: Start accepts. Automaton has 39147 states and 257388 transitions. Word has length 21 [2021-08-06 15:39:54,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:39:54,693 INFO L470 AbstractCegarLoop]: Abstraction has 39147 states and 257388 transitions. [2021-08-06 15:39:54,693 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 15:39:54,694 INFO L276 IsEmpty]: Start isEmpty. Operand 39147 states and 257388 transitions. [2021-08-06 15:39:54,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-06 15:39:54,764 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:54,764 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 15:39:54,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-06 15:39:54,765 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:54,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:54,765 INFO L82 PathProgramCache]: Analyzing trace with hash 572242783, now seen corresponding path program 1 times [2021-08-06 15:39:54,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:54,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285400414] [2021-08-06 15:39:54,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:54,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:54,905 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 15:39:54,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:54,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285400414] [2021-08-06 15:39:54,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285400414] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:54,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:54,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-06 15:39:54,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404308718] [2021-08-06 15:39:54,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-06 15:39:54,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:54,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-06 15:39:54,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-08-06 15:39:54,907 INFO L87 Difference]: Start difference. First operand 39147 states and 257388 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 15:39:56,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:56,003 INFO L93 Difference]: Finished difference Result 61196 states and 406285 transitions. [2021-08-06 15:39:56,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 15:39:56,004 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 15:39:56,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:56,402 INFO L225 Difference]: With dead ends: 61196 [2021-08-06 15:39:56,402 INFO L226 Difference]: Without dead ends: 46310 [2021-08-06 15:39:56,402 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 43.9ms TimeCoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-08-06 15:39:56,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46310 states. [2021-08-06 15:39:58,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46310 to 32559. [2021-08-06 15:39:58,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32559 states, 32558 states have (on average 6.510688617236931) internal successors, (211975), 32558 states have internal predecessors, (211975), 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 15:39:58,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32559 states to 32559 states and 211975 transitions. [2021-08-06 15:39:58,710 INFO L78 Accepts]: Start accepts. Automaton has 32559 states and 211975 transitions. Word has length 24 [2021-08-06 15:39:58,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:39:58,711 INFO L470 AbstractCegarLoop]: Abstraction has 32559 states and 211975 transitions. [2021-08-06 15:39:58,711 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 15:39:58,711 INFO L276 IsEmpty]: Start isEmpty. Operand 32559 states and 211975 transitions. [2021-08-06 15:39:58,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-06 15:39:58,841 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:58,841 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] [2021-08-06 15:39:58,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-06 15:39:58,841 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:58,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:58,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1016672010, now seen corresponding path program 1 times [2021-08-06 15:39:58,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:58,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360619113] [2021-08-06 15:39:58,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:58,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:59,182 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 15:39:59,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:59,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360619113] [2021-08-06 15:39:59,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360619113] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:59,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:59,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-06 15:39:59,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819480595] [2021-08-06 15:39:59,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-06 15:39:59,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:59,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-06 15:39:59,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-08-06 15:39:59,184 INFO L87 Difference]: Start difference. First operand 32559 states and 211975 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) [2021-08-06 15:40:00,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:40:00,306 INFO L93 Difference]: Finished difference Result 45660 states and 301470 transitions. [2021-08-06 15:40:00,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 15:40:00,306 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 [2021-08-06 15:40:00,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:40:00,553 INFO L225 Difference]: With dead ends: 45660 [2021-08-06 15:40:00,553 INFO L226 Difference]: Without dead ends: 28584 [2021-08-06 15:40:00,553 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 [2021-08-06 15:40:00,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28584 states. [2021-08-06 15:40:01,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28584 to 22057. [2021-08-06 15:40:01,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22057 states, 22056 states have (on average 6.404379760609358) internal successors, (141255), 22056 states have internal predecessors, (141255), 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 15:40:01,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22057 states to 22057 states and 141255 transitions. [2021-08-06 15:40:01,588 INFO L78 Accepts]: Start accepts. Automaton has 22057 states and 141255 transitions. Word has length 27 [2021-08-06 15:40:01,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:40:01,590 INFO L470 AbstractCegarLoop]: Abstraction has 22057 states and 141255 transitions. [2021-08-06 15:40:01,590 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) [2021-08-06 15:40:01,590 INFO L276 IsEmpty]: Start isEmpty. Operand 22057 states and 141255 transitions. [2021-08-06 15:40:01,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-06 15:40:01,613 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:40:01,613 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] [2021-08-06 15:40:01,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-06 15:40:01,613 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:40:01,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:40:01,622 INFO L82 PathProgramCache]: Analyzing trace with hash -2133645509, now seen corresponding path program 1 times [2021-08-06 15:40:01,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:40:01,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174171668] [2021-08-06 15:40:01,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:40:01,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:40:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:40:01,901 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 15:40:01,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:40:01,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174171668] [2021-08-06 15:40:01,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174171668] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:40:01,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:40:01,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-06 15:40:01,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469364803] [2021-08-06 15:40:01,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-06 15:40:01,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:40:01,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-06 15:40:01,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=67, Unknown=0, NotChecked=0, Total=132 [2021-08-06 15:40:01,904 INFO L87 Difference]: Start difference. First operand 22057 states and 141255 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) [2021-08-06 15:40:02,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:40:02,505 INFO L93 Difference]: Finished difference Result 14767 states and 99702 transitions. [2021-08-06 15:40:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 15:40:02,506 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 [2021-08-06 15:40:02,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:40:02,506 INFO L225 Difference]: With dead ends: 14767 [2021-08-06 15:40:02,506 INFO L226 Difference]: Without dead ends: 0 [2021-08-06 15:40:02,507 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 94.1ms TimeCoverageRelationStatistics Valid=65, Invalid=67, Unknown=0, NotChecked=0, Total=132 [2021-08-06 15:40:02,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-06 15:40:02,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-06 15:40:02,507 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 15:40:02,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-06 15:40:02,507 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2021-08-06 15:40:02,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:40:02,508 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-06 15:40:02,508 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) [2021-08-06 15:40:02,508 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-06 15:40:02,508 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 15:40:02,508 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-06 15:40:02,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-06 15:40:02,512 INFO L308 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was SAFE (2/2) [2021-08-06 15:40:02,512 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 15:40:02,513 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 15:40:02,521 INFO L202 PluginConnector]: Adding new model bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 03:40:02 BasicIcfg [2021-08-06 15:40:02,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 15:40:02,521 INFO L168 Benchmark]: Toolchain (without parser) took 41700.06 ms. Allocated memory was 187.7 MB in the beginning and 7.9 GB in the end (delta: 7.7 GB). Free memory was 167.6 MB in the beginning and 6.4 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. [2021-08-06 15:40:02,521 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 187.7 MB. Free memory is still 168.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 15:40:02,522 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.37 ms. Allocated memory is still 187.7 MB. Free memory was 167.4 MB in the beginning and 165.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-06 15:40:02,522 INFO L168 Benchmark]: Boogie Preprocessor took 9.63 ms. Allocated memory is still 187.7 MB. Free memory was 165.7 MB in the beginning and 164.7 MB in the end (delta: 969.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-06 15:40:02,523 INFO L168 Benchmark]: RCFGBuilder took 348.95 ms. Allocated memory is still 187.7 MB. Free memory was 164.6 MB in the beginning and 172.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 8.0 GB. [2021-08-06 15:40:02,523 INFO L168 Benchmark]: TraceAbstraction took 41314.66 ms. Allocated memory was 187.7 MB in the beginning and 7.9 GB in the end (delta: 7.7 GB). Free memory was 171.6 MB in the beginning and 6.4 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. [2021-08-06 15:40:02,528 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 187.7 MB. Free memory is still 168.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.37 ms. Allocated memory is still 187.7 MB. Free memory was 167.4 MB in the beginning and 165.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.63 ms. Allocated memory is still 187.7 MB. Free memory was 165.7 MB in the beginning and 164.7 MB in the end (delta: 969.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 348.95 ms. Allocated memory is still 187.7 MB. Free memory was 164.6 MB in the beginning and 172.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 41314.66 ms. Allocated memory was 187.7 MB in the beginning and 7.9 GB in the end (delta: 7.7 GB). Free memory was 171.6 MB in the beginning and 6.4 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 12 procedures, 65 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 845.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 163.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 663.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10931occurred 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 12 procedures, 65 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 40374.4ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 449.0ms, AutomataDifference: 15940.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2259.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 561 SDtfs, 721 SDslu, 958 SDs, 0 SdLazy, 1223 SolverSat, 509 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1018.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 317.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=67046occurred 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: 20349.4ms AutomataMinimizationTime, 9 MinimizatonAttempts, 74636 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.8ms SsaConstructionTime, 108.4ms SatisfiabilityAnalysisTime, 1052.1ms 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! [2021-08-06 15:40:02,570 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...