/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-correct06.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 13:36:57,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 13:36:57,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 13:36:57,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 13:36:57,495 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-08-21 13:36:57,535 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 13:36:57,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 13:36:57,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-21 13:36:57,536 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-21 13:36:57,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 13:36:57,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 13:36:57,537 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 13:36:57,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 13:36:57,537 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 13:36:57,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 13:36:57,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 13:36:57,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 13:36:57,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 13:36:57,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 13:36:57,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 13:36:57,538 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 13:36:57,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 13:36:57,538 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 13:36:57,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 13:36:57,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 13:36:57,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 13:36:57,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 13:36:57,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 13:36:57,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 13:36:57,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 13:36:57,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 13:36:57,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 13:36:57,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 13:36:57,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 13:36:57,540 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 13:36:57,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 13:36:57,543 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 13:36:57,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 13:36:57,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 13:36:57,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 13:36:57,867 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-21 13:36:57,869 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-21 13:36:57,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct06.bpl [2021-08-21 13:36:57,870 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct06.bpl' [2021-08-21 13:36:57,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 13:36:57,897 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-21 13:36:57,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 13:36:57,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 13:36:57,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 13:36:57,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:36:57" (1/1) ... [2021-08-21 13:36:57,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:36:57" (1/1) ... [2021-08-21 13:36:57,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 13:36:57,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 13:36:57,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 13:36:57,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 13:36:57,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:36:57" (1/1) ... [2021-08-21 13:36:57,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:36:57" (1/1) ... [2021-08-21 13:36:57,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:36:57" (1/1) ... [2021-08-21 13:36:57,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:36:57" (1/1) ... [2021-08-21 13:36:57,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:36:57" (1/1) ... [2021-08-21 13:36:57,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:36:57" (1/1) ... [2021-08-21 13:36:57,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:36:57" (1/1) ... [2021-08-21 13:36:57,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 13:36:57,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 13:36:57,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 13:36:57,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 13:36:57,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:36:57" (1/1) ... [2021-08-21 13:36:57,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 13:36:57,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 13:36:57,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 13:36:58,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 13:36:58,016 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-21 13:36:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-21 13:36:58,016 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-21 13:36:58,016 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-21 13:36:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-21 13:36:58,016 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-21 13:36:58,016 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-21 13:36:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-21 13:36:58,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-21 13:36:58,017 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-21 13:36:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 13:36:58,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 13:36:58,018 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 13:36:58,268 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 13:36:58,269 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-21 13:36:58,269 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-08-21 13:36:58,270 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-08-21 13:36:58,271 INFO L202 PluginConnector]: Adding new model bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:36:58 BoogieIcfgContainer [2021-08-21 13:36:58,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 13:36:58,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 13:36:58,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 13:36:58,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 13:36:58,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 01:36:57" (1/2) ... [2021-08-21 13:36:58,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77bf816c and model type bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:36:58, skipping insertion in model container [2021-08-21 13:36:58,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:36:58" (2/2) ... [2021-08-21 13:36:58,277 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct06.bpl [2021-08-21 13:36:58,280 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 13:36:58,281 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 13:36:58,281 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 13:36:58,281 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 13:36:58,323 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 13:36:58,357 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 13:36:58,363 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 13:36:58,363 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-08-21 13:36:58,372 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 44 transitions, 123 flow [2021-08-21 13:36:59,673 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 15305 states, 15303 states have (on average 7.066000130693328) internal successors, (108131), 15304 states have internal predecessors, (108131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:36:59,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 15305 states, 15303 states have (on average 7.066000130693328) internal successors, (108131), 15304 states have internal predecessors, (108131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:36:59,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-21 13:36:59,755 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:36:59,756 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:36:59,758 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-08-21 13:36:59,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:36:59,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1950156025, now seen corresponding path program 1 times [2021-08-21 13:36:59,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:36:59,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579650121] [2021-08-21 13:36:59,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:36:59,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:36:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:36:59,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 13:36:59,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:36:59,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579650121] [2021-08-21 13:36:59,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579650121] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:36:59,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:36:59,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-21 13:36:59,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150676503] [2021-08-21 13:36:59,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 13:36:59,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:36:59,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 13:36:59,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 13:37:00,032 INFO L87 Difference]: Start difference. First operand has 15305 states, 15303 states have (on average 7.066000130693328) internal successors, (108131), 15304 states have internal predecessors, (108131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:00,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:37:00,619 INFO L93 Difference]: Finished difference Result 16761 states and 116473 transitions. [2021-08-21 13:37:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 13:37:00,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-21 13:37:00,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:37:00,990 INFO L225 Difference]: With dead ends: 16761 [2021-08-21 13:37:00,990 INFO L226 Difference]: Without dead ends: 12151 [2021-08-21 13:37:00,993 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 13:37:01,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12151 states. [2021-08-21 13:37:01,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12151 to 12151. [2021-08-21 13:37:01,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12151 states, 12150 states have (on average 7.000329218106996) internal successors, (85054), 12150 states have internal predecessors, (85054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:02,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12151 states to 12151 states and 85054 transitions. [2021-08-21 13:37:02,164 INFO L78 Accepts]: Start accepts. Automaton has 12151 states and 85054 transitions. Word has length 8 [2021-08-21 13:37:02,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:37:02,165 INFO L470 AbstractCegarLoop]: Abstraction has 12151 states and 85054 transitions. [2021-08-21 13:37:02,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:02,165 INFO L276 IsEmpty]: Start isEmpty. Operand 12151 states and 85054 transitions. [2021-08-21 13:37:02,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-21 13:37:02,172 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:37:02,172 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:37:02,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 13:37:02,173 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-08-21 13:37:02,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:37:02,177 INFO L82 PathProgramCache]: Analyzing trace with hash -804239753, now seen corresponding path program 1 times [2021-08-21 13:37:02,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:37:02,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939326602] [2021-08-21 13:37:02,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:37:02,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:37:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:37:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 13:37:02,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:37:02,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939326602] [2021-08-21 13:37:02,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939326602] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:37:02,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:37:02,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 13:37:02,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820858212] [2021-08-21 13:37:02,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 13:37:02,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:37:02,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 13:37:02,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 13:37:02,221 INFO L87 Difference]: Start difference. First operand 12151 states and 85054 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:02,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:37:02,756 INFO L93 Difference]: Finished difference Result 12151 states and 65835 transitions. [2021-08-21 13:37:02,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 13:37:02,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-21 13:37:02,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:37:02,834 INFO L225 Difference]: With dead ends: 12151 [2021-08-21 13:37:02,835 INFO L226 Difference]: Without dead ends: 6076 [2021-08-21 13:37:02,836 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 13:37:02,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6076 states. [2021-08-21 13:37:03,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6076 to 6076. [2021-08-21 13:37:03,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6076 states, 6075 states have (on average 5.303539094650206) internal successors, (32219), 6075 states have internal predecessors, (32219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:03,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6076 states to 6076 states and 32219 transitions. [2021-08-21 13:37:03,276 INFO L78 Accepts]: Start accepts. Automaton has 6076 states and 32219 transitions. Word has length 12 [2021-08-21 13:37:03,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:37:03,276 INFO L470 AbstractCegarLoop]: Abstraction has 6076 states and 32219 transitions. [2021-08-21 13:37:03,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:03,277 INFO L276 IsEmpty]: Start isEmpty. Operand 6076 states and 32219 transitions. [2021-08-21 13:37:03,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-21 13:37:03,282 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:37:03,282 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:37:03,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 13:37:03,283 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-08-21 13:37:03,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:37:03,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1426327671, now seen corresponding path program 2 times [2021-08-21 13:37:03,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:37:03,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989480455] [2021-08-21 13:37:03,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:37:03,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:37:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:37:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 13:37:03,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:37:03,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989480455] [2021-08-21 13:37:03,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989480455] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:37:03,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:37:03,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 13:37:03,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017752369] [2021-08-21 13:37:03,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 13:37:03,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:37:03,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 13:37:03,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-21 13:37:03,381 INFO L87 Difference]: Start difference. First operand 6076 states and 32219 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:03,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:37:03,981 INFO L93 Difference]: Finished difference Result 11413 states and 63710 transitions. [2021-08-21 13:37:03,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 13:37:03,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-21 13:37:03,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:37:04,106 INFO L225 Difference]: With dead ends: 11413 [2021-08-21 13:37:04,107 INFO L226 Difference]: Without dead ends: 11217 [2021-08-21 13:37:04,107 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 17.3ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-21 13:37:04,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11217 states. [2021-08-21 13:37:04,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11217 to 10493. [2021-08-21 13:37:04,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10493 states, 10492 states have (on average 5.675467022493328) internal successors, (59547), 10492 states have internal predecessors, (59547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:04,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10493 states to 10493 states and 59547 transitions. [2021-08-21 13:37:04,793 INFO L78 Accepts]: Start accepts. Automaton has 10493 states and 59547 transitions. Word has length 12 [2021-08-21 13:37:04,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:37:04,794 INFO L470 AbstractCegarLoop]: Abstraction has 10493 states and 59547 transitions. [2021-08-21 13:37:04,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:04,795 INFO L276 IsEmpty]: Start isEmpty. Operand 10493 states and 59547 transitions. [2021-08-21 13:37:04,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-21 13:37:04,802 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:37:04,802 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:37:04,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 13:37:04,802 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-08-21 13:37:04,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:37:04,803 INFO L82 PathProgramCache]: Analyzing trace with hash 775794731, now seen corresponding path program 1 times [2021-08-21 13:37:04,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:37:04,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545764129] [2021-08-21 13:37:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:37:04,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:37:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:37:04,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 13:37:04,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:37:04,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545764129] [2021-08-21 13:37:04,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545764129] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:37:04,954 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:37:04,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 13:37:04,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177993853] [2021-08-21 13:37:04,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 13:37:04,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:37:04,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 13:37:04,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-21 13:37:04,956 INFO L87 Difference]: Start difference. First operand 10493 states and 59547 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:05,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:37:05,276 INFO L93 Difference]: Finished difference Result 18006 states and 103556 transitions. [2021-08-21 13:37:05,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-21 13:37:05,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-08-21 13:37:05,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:37:05,437 INFO L225 Difference]: With dead ends: 18006 [2021-08-21 13:37:05,438 INFO L226 Difference]: Without dead ends: 16818 [2021-08-21 13:37:05,439 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 57.6ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-21 13:37:05,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16818 states. [2021-08-21 13:37:06,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16818 to 12243. [2021-08-21 13:37:06,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12243 states, 12242 states have (on average 5.727658879268094) internal successors, (70118), 12242 states have internal predecessors, (70118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:06,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12243 states to 12243 states and 70118 transitions. [2021-08-21 13:37:06,352 INFO L78 Accepts]: Start accepts. Automaton has 12243 states and 70118 transitions. Word has length 15 [2021-08-21 13:37:06,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:37:06,353 INFO L470 AbstractCegarLoop]: Abstraction has 12243 states and 70118 transitions. [2021-08-21 13:37:06,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:06,354 INFO L276 IsEmpty]: Start isEmpty. Operand 12243 states and 70118 transitions. [2021-08-21 13:37:06,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-21 13:37:06,374 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:37:06,375 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:37:06,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 13:37:06,375 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-08-21 13:37:06,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:37:06,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1937669625, now seen corresponding path program 1 times [2021-08-21 13:37:06,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:37:06,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658849175] [2021-08-21 13:37:06,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:37:06,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:37:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:37:06,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 13:37:06,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:37:06,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658849175] [2021-08-21 13:37:06,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658849175] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:37:06,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:37:06,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 13:37:06,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216549519] [2021-08-21 13:37:06,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 13:37:06,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:37:06,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 13:37:06,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-21 13:37:06,488 INFO L87 Difference]: Start difference. First operand 12243 states and 70118 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:06,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:37:06,782 INFO L93 Difference]: Finished difference Result 20430 states and 118161 transitions. [2021-08-21 13:37:06,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 13:37:06,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-21 13:37:06,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:37:07,135 INFO L225 Difference]: With dead ends: 20430 [2021-08-21 13:37:07,135 INFO L226 Difference]: Without dead ends: 17793 [2021-08-21 13:37:07,135 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 32.4ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-21 13:37:07,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17793 states. [2021-08-21 13:37:07,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17793 to 12413. [2021-08-21 13:37:07,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12413 states, 12412 states have (on average 5.745085401224621) internal successors, (71308), 12412 states have internal predecessors, (71308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:07,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12413 states to 12413 states and 71308 transitions. [2021-08-21 13:37:07,919 INFO L78 Accepts]: Start accepts. Automaton has 12413 states and 71308 transitions. Word has length 18 [2021-08-21 13:37:07,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:37:07,920 INFO L470 AbstractCegarLoop]: Abstraction has 12413 states and 71308 transitions. [2021-08-21 13:37:07,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:07,920 INFO L276 IsEmpty]: Start isEmpty. Operand 12413 states and 71308 transitions. [2021-08-21 13:37:07,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-21 13:37:07,950 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:37:07,951 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:37:07,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 13:37:07,951 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-08-21 13:37:07,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:37:07,952 INFO L82 PathProgramCache]: Analyzing trace with hash 534059865, now seen corresponding path program 1 times [2021-08-21 13:37:07,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:37:07,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680769540] [2021-08-21 13:37:07,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:37:07,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:37:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:37:08,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 13:37:08,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:37:08,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680769540] [2021-08-21 13:37:08,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680769540] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:37:08,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:37:08,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 13:37:08,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381930711] [2021-08-21 13:37:08,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-21 13:37:08,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:37:08,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-21 13:37:08,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-08-21 13:37:08,130 INFO L87 Difference]: Start difference. First operand 12413 states and 71308 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:08,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:37:08,557 INFO L93 Difference]: Finished difference Result 19476 states and 112941 transitions. [2021-08-21 13:37:08,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 13:37:08,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-08-21 13:37:08,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:37:08,925 INFO L225 Difference]: With dead ends: 19476 [2021-08-21 13:37:08,925 INFO L226 Difference]: Without dead ends: 15094 [2021-08-21 13:37:08,926 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 67.4ms TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-08-21 13:37:08,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15094 states. [2021-08-21 13:37:09,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15094 to 10733. [2021-08-21 13:37:09,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10733 states, 10732 states have (on average 5.706205739843459) internal successors, (61239), 10732 states have internal predecessors, (61239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:09,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10733 states to 10733 states and 61239 transitions. [2021-08-21 13:37:09,347 INFO L78 Accepts]: Start accepts. Automaton has 10733 states and 61239 transitions. Word has length 21 [2021-08-21 13:37:09,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:37:09,347 INFO L470 AbstractCegarLoop]: Abstraction has 10733 states and 61239 transitions. [2021-08-21 13:37:09,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:09,348 INFO L276 IsEmpty]: Start isEmpty. Operand 10733 states and 61239 transitions. [2021-08-21 13:37:09,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-21 13:37:09,368 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:37:09,368 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:37:09,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 13:37:09,369 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-08-21 13:37:09,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:37:09,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1765899753, now seen corresponding path program 1 times [2021-08-21 13:37:09,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:37:09,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822510065] [2021-08-21 13:37:09,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:37:09,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:37:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:37:09,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 13:37:09,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:37:09,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822510065] [2021-08-21 13:37:09,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822510065] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:37:09,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:37:09,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-21 13:37:09,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358666293] [2021-08-21 13:37:09,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-21 13:37:09,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:37:09,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-21 13:37:09,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-08-21 13:37:09,703 INFO L87 Difference]: Start difference. First operand 10733 states and 61239 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:37:10,037 INFO L93 Difference]: Finished difference Result 15052 states and 86958 transitions. [2021-08-21 13:37:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 13:37:10,038 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-08-21 13:37:10,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:37:10,093 INFO L225 Difference]: With dead ends: 15052 [2021-08-21 13:37:10,093 INFO L226 Difference]: Without dead ends: 9504 [2021-08-21 13:37:10,094 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 55.9ms TimeCoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-08-21 13:37:10,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9504 states. [2021-08-21 13:37:10,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9504 to 7381. [2021-08-21 13:37:10,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7381 states, 7380 states have (on average 5.612059620596206) internal successors, (41417), 7380 states have internal predecessors, (41417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:10,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7381 states to 7381 states and 41417 transitions. [2021-08-21 13:37:10,530 INFO L78 Accepts]: Start accepts. Automaton has 7381 states and 41417 transitions. Word has length 24 [2021-08-21 13:37:10,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:37:10,530 INFO L470 AbstractCegarLoop]: Abstraction has 7381 states and 41417 transitions. [2021-08-21 13:37:10,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:10,531 INFO L276 IsEmpty]: Start isEmpty. Operand 7381 states and 41417 transitions. [2021-08-21 13:37:10,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-21 13:37:10,540 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 13:37:10,540 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 13:37:10,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 13:37:10,541 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-08-21 13:37:10,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 13:37:10,541 INFO L82 PathProgramCache]: Analyzing trace with hash 2124950743, now seen corresponding path program 1 times [2021-08-21 13:37:10,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 13:37:10,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938593308] [2021-08-21 13:37:10,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 13:37:10,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 13:37:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 13:37:10,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 13:37:10,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 13:37:10,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938593308] [2021-08-21 13:37:10,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938593308] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 13:37:10,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 13:37:10,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-21 13:37:10,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385644203] [2021-08-21 13:37:10,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-21 13:37:10,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 13:37:10,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-21 13:37:10,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-08-21 13:37:10,691 INFO L87 Difference]: Start difference. First operand 7381 states and 41417 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:10,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 13:37:10,894 INFO L93 Difference]: Finished difference Result 4951 states and 29186 transitions. [2021-08-21 13:37:10,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 13:37:10,894 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-08-21 13:37:10,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 13:37:10,895 INFO L225 Difference]: With dead ends: 4951 [2021-08-21 13:37:10,895 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 13:37:10,895 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 57.8ms TimeCoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-08-21 13:37:10,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 13:37:10,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 13:37:10,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:10,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 13:37:10,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2021-08-21 13:37:10,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 13:37:10,896 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 13:37:10,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 13:37:10,896 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 13:37:10,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 13:37:10,899 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 13:37:10,900 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 13:37:10,900 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 13:37:10,900 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 13:37:10,900 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-21 13:37:10,900 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-21 13:37:10,900 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-21 13:37:10,901 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION [2021-08-21 13:37:10,901 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 13:37:10,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-21 13:37:10,906 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 13:37:10,907 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 13:37:10,909 INFO L202 PluginConnector]: Adding new model bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 01:37:10 BasicIcfg [2021-08-21 13:37:10,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 13:37:10,910 INFO L168 Benchmark]: Toolchain (without parser) took 13012.37 ms. Allocated memory was 216.0 MB in the beginning and 5.8 GB in the end (delta: 5.6 GB). Free memory was 196.7 MB in the beginning and 5.0 GB in the end (delta: -4.8 GB). Peak memory consumption was 824.1 MB. Max. memory is 8.0 GB. [2021-08-21 13:37:10,910 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 216.0 MB. Free memory is still 197.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 13:37:10,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.10 ms. Allocated memory is still 216.0 MB. Free memory was 196.7 MB in the beginning and 194.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 13:37:10,911 INFO L168 Benchmark]: Boogie Preprocessor took 13.47 ms. Allocated memory is still 216.0 MB. Free memory was 194.8 MB in the beginning and 194.0 MB in the end (delta: 855.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 13:37:10,912 INFO L168 Benchmark]: RCFGBuilder took 325.38 ms. Allocated memory is still 216.0 MB. Free memory was 193.8 MB in the beginning and 178.5 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-21 13:37:10,912 INFO L168 Benchmark]: TraceAbstraction took 12636.26 ms. Allocated memory was 216.0 MB in the beginning and 5.8 GB in the end (delta: 5.6 GB). Free memory was 178.1 MB in the beginning and 5.0 GB in the end (delta: -4.8 GB). Peak memory consumption was 805.2 MB. Max. memory is 8.0 GB. [2021-08-21 13:37:10,914 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 0.19 ms. Allocated memory is still 216.0 MB. Free memory is still 197.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 32.10 ms. Allocated memory is still 216.0 MB. Free memory was 196.7 MB in the beginning and 194.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.47 ms. Allocated memory is still 216.0 MB. Free memory was 194.8 MB in the beginning and 194.0 MB in the end (delta: 855.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 325.38 ms. Allocated memory is still 216.0 MB. Free memory was 193.8 MB in the beginning and 178.5 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 12636.26 ms. Allocated memory was 216.0 MB in the beginning and 5.8 GB in the end (delta: 5.6 GB). Free memory was 178.1 MB in the beginning and 5.0 GB in the end (delta: -4.8 GB). Peak memory consumption was 805.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 60 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 12549.0ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 180.7ms, AutomataDifference: 4899.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1310.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 407 SDtfs, 512 SDslu, 623 SDs, 0 SdLazy, 754 SolverSat, 322 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 702.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 300.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=15305occurred in iteration=0, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 4838.6ms AutomataMinimizationTime, 8 MinimizatonAttempts, 17163 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 174.7ms SsaConstructionTime, 75.1ms SatisfiabilityAnalysisTime, 885.2ms InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 570 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 13:37:10,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...