/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-correct08.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 15:39:34,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 15:39:34,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 15:39:34,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 15:39:34,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-06 15:39:34,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-06 15:39:34,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-06 15:39:34,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-06 15:39:34,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-06 15:39:34,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-06 15:39:34,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-06 15:39:34,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-06 15:39:34,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-06 15:39:34,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-06 15:39:34,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-06 15:39:34,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-06 15:39:34,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-06 15:39:34,171 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 15:39:34,192 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 15:39:34,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 15:39:34,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-06 15:39:34,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-06 15:39:34,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 15:39:34,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 15:39:34,194 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 15:39:34,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 15:39:34,194 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 15:39:34,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 15:39:34,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 15:39:34,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 15:39:34,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 15:39:34,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 15:39:34,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 15:39:34,195 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 15:39:34,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 15:39:34,195 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 15:39:34,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 15:39:34,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 15:39:34,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 15:39:34,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 15:39:34,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 15:39:34,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 15:39:34,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 15:39:34,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 15:39:34,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 15:39:34,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 15:39:34,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 15:39:34,197 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 15:39:34,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 15:39:34,197 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 15:39:34,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 15:39:34,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 15:39:34,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 15:39:34,468 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-06 15:39:34,469 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-06 15:39:34,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl [2021-08-06 15:39:34,470 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl' [2021-08-06 15:39:34,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 15:39:34,505 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-06 15:39:34,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 15:39:34,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 15:39:34,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 15:39:34,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:34" (1/1) ... [2021-08-06 15:39:34,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:34" (1/1) ... [2021-08-06 15:39:34,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 15:39:34,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 15:39:34,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 15:39:34,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 15:39:34,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:34" (1/1) ... [2021-08-06 15:39:34,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:34" (1/1) ... [2021-08-06 15:39:34,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:34" (1/1) ... [2021-08-06 15:39:34,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:34" (1/1) ... [2021-08-06 15:39:34,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:34" (1/1) ... [2021-08-06 15:39:34,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:34" (1/1) ... [2021-08-06 15:39:34,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:34" (1/1) ... [2021-08-06 15:39:34,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 15:39:34,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 15:39:34,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 15:39:34,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 15:39:34,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:34" (1/1) ... [2021-08-06 15:39:34,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 15:39:34,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 15:39:34,592 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 15:39:34,598 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 15:39:34,625 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-06 15:39:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-06 15:39:34,625 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-06 15:39:34,625 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-06 15:39:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-06 15:39:34,626 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-06 15:39:34,626 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-06 15:39:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-06 15:39:34,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-06 15:39:34,626 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-06 15:39:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 15:39:34,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 15:39:34,627 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 15:39:34,935 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 15:39:34,935 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-06 15:39:34,936 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-08-06 15:39:34,936 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-08-06 15:39:34,937 INFO L202 PluginConnector]: Adding new model bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 03:39:34 BoogieIcfgContainer [2021-08-06 15:39:34,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 15:39:34,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 15:39:34,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 15:39:34,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 15:39:34,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 03:39:34" (1/2) ... [2021-08-06 15:39:34,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad5a838 and model type bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 03:39:34, skipping insertion in model container [2021-08-06 15:39:34,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 03:39:34" (2/2) ... [2021-08-06 15:39:34,943 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct08.bpl [2021-08-06 15:39:34,946 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 15:39:34,946 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 15:39:34,947 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 15:39:34,947 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 15:39:34,987 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-06 15:39:35,021 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 15:39:35,027 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 15:39:35,027 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-08-06 15:39:35,036 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 54 transitions, 153 flow [2021-08-06 15:39:37,396 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 32801 states, 32799 states have (on average 7.667947193511997) internal successors, (251501), 32800 states have internal predecessors, (251501), 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 15:39:37,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 32801 states, 32799 states have (on average 7.667947193511997) internal successors, (251501), 32800 states have internal predecessors, (251501), 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 15:39:37,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 15:39:37,803 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 15:39:37,803 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 15:39:37,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-06 15:39:37,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-06 15:39:37,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-06 15:39:37,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-06 15:39:37,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION [2021-08-06 15:39:37,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATION [2021-08-06 15:39:37,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8INUSE_VIOLATION [2021-08-06 15:39:37,808 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2021-08-06 15:39:37,813 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1 ======== [2021-08-06 15:39:37,818 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 15:39:37,818 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-06 15:39:37,825 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 54 transitions, 153 flow [2021-08-06 15:39:45,251 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 131219 states, 131218 states have (on average 9.133472541876877) internal successors, (1198476), 131218 states have internal predecessors, (1198476), 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 15:39:45,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 131219 states, 131218 states have (on average 9.133472541876877) internal successors, (1198476), 131218 states have internal predecessors, (1198476), 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 15:39:45,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-06 15:39:45,544 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:39:45,545 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 15:39:45,546 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:39:45,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:39:45,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1396047556, now seen corresponding path program 1 times [2021-08-06 15:39:45,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:39:45,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495075343] [2021-08-06 15:39:45,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:39:45,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:39:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:39:45,672 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 15:39:45,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:39:45,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495075343] [2021-08-06 15:39:45,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495075343] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:39:45,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:39:45,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-06 15:39:45,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144578155] [2021-08-06 15:39:45,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-06 15:39:45,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:39:45,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-06 15:39:45,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 15:39:45,993 INFO L87 Difference]: Start difference. First operand has 131219 states, 131218 states have (on average 9.133472541876877) internal successors, (1198476), 131218 states have internal predecessors, (1198476), 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 15:39:50,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:39:50,490 INFO L93 Difference]: Finished difference Result 142153 states and 1283769 transitions. [2021-08-06 15:39:50,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-06 15:39:50,491 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 15:39:50,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:39:52,782 INFO L225 Difference]: With dead ends: 142153 [2021-08-06 15:39:52,783 INFO L226 Difference]: Without dead ends: 109351 [2021-08-06 15:39:52,784 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 15:39:53,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109351 states. [2021-08-06 15:40:01,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109351 to 109351. [2021-08-06 15:40:01,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109351 states, 109350 states have (on average 9.000036579789667) internal successors, (984154), 109350 states have internal predecessors, (984154), 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 15:40:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109351 states to 109351 states and 984154 transitions. [2021-08-06 15:40:03,546 INFO L78 Accepts]: Start accepts. Automaton has 109351 states and 984154 transitions. Word has length 8 [2021-08-06 15:40:03,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:40:03,546 INFO L470 AbstractCegarLoop]: Abstraction has 109351 states and 984154 transitions. [2021-08-06 15:40:03,546 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 15:40:03,546 INFO L276 IsEmpty]: Start isEmpty. Operand 109351 states and 984154 transitions. [2021-08-06 15:40:03,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-06 15:40:03,549 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:40:03,550 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 15:40:03,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 15:40:03,551 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:40:03,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:40:03,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1253862074, now seen corresponding path program 1 times [2021-08-06 15:40:03,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:40:03,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604648366] [2021-08-06 15:40:03,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:40:03,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:40:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:40:03,685 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 15:40:03,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:40:03,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604648366] [2021-08-06 15:40:03,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604648366] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:40:03,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:40:03,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-06 15:40:03,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937218323] [2021-08-06 15:40:03,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 15:40:03,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:40:03,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 15:40:03,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-06 15:40:03,697 INFO L87 Difference]: Start difference. First operand 109351 states and 984154 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 15:40:08,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:40:08,939 INFO L93 Difference]: Finished difference Result 204200 states and 1837155 transitions. [2021-08-06 15:40:08,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-06 15:40:08,940 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 15:40:08,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:40:13,688 INFO L225 Difference]: With dead ends: 204200 [2021-08-06 15:40:13,689 INFO L226 Difference]: Without dead ends: 204200 [2021-08-06 15:40:13,689 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 32.1ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-06 15:40:14,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204200 states. [2021-08-06 15:40:31,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204200 to 203184. [2021-08-06 15:40:32,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203184 states, 203183 states have (on average 9.01200887869556) internal successors, (1831087), 203183 states have internal predecessors, (1831087), 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 15:40:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203184 states to 203184 states and 1831087 transitions. [2021-08-06 15:40:37,816 INFO L78 Accepts]: Start accepts. Automaton has 203184 states and 1831087 transitions. Word has length 12 [2021-08-06 15:40:37,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 15:40:37,816 INFO L470 AbstractCegarLoop]: Abstraction has 203184 states and 1831087 transitions. [2021-08-06 15:40:37,816 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 15:40:37,816 INFO L276 IsEmpty]: Start isEmpty. Operand 203184 states and 1831087 transitions. [2021-08-06 15:40:37,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-06 15:40:37,830 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 15:40:37,830 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 15:40:37,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-06 15:40:37,831 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 15:40:37,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 15:40:37,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1969739804, now seen corresponding path program 2 times [2021-08-06 15:40:37,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 15:40:37,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012878232] [2021-08-06 15:40:37,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 15:40:37,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 15:40:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 15:40:38,280 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 15:40:38,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 15:40:38,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012878232] [2021-08-06 15:40:38,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012878232] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 15:40:38,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 15:40:38,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-06 15:40:38,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714008550] [2021-08-06 15:40:38,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-06 15:40:38,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 15:40:38,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-06 15:40:38,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 15:40:38,282 INFO L87 Difference]: Start difference. First operand 203184 states and 1831087 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 15:40:44,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 15:40:44,649 INFO L93 Difference]: Finished difference Result 189139 states and 1356100 transitions. [2021-08-06 15:40:44,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-06 15:40:44,649 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 15:40:44,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 15:40:46,516 INFO L225 Difference]: With dead ends: 189139 [2021-08-06 15:40:46,517 INFO L226 Difference]: Without dead ends: 101925 [2021-08-06 15:40:46,518 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 15:40:47,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101925 states.