/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 19:01:00,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 19:01:00,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 19:01:00,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 19:01:01,011 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-08-21 19:01:01,048 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 19:01:01,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 19:01:01,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 19:01:01,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 19:01:01,050 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 19:01:01,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 19:01:01,050 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 19:01:01,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 19:01:01,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 19:01:01,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 19:01:01,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 19:01:01,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 19:01:01,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 19:01:01,051 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 19:01:01,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 19:01:01,052 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 19:01:01,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 19:01:01,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 19:01:01,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 19:01:01,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 19:01:01,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 19:01:01,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:01:01,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 19:01:01,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 19:01:01,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 19:01:01,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 19:01:01,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 19:01:01,058 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 19:01:01,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 19:01:01,059 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 19:01:01,059 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 19:01:01,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 19:01:01,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 19:01:01,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 19:01:01,410 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-21 19:01:01,411 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-21 19:01:01,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl [2021-08-21 19:01:01,413 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl' [2021-08-21 19:01:01,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 19:01:01,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-21 19:01:01,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 19:01:01,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 19:01:01,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 19:01:01,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:01" (1/1) ... [2021-08-21 19:01:01,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:01" (1/1) ... [2021-08-21 19:01:01,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 19:01:01,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 19:01:01,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 19:01:01,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 19:01:01,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:01" (1/1) ... [2021-08-21 19:01:01,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:01" (1/1) ... [2021-08-21 19:01:01,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:01" (1/1) ... [2021-08-21 19:01:01,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:01" (1/1) ... [2021-08-21 19:01:01,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:01" (1/1) ... [2021-08-21 19:01:01,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:01" (1/1) ... [2021-08-21 19:01:01,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:01" (1/1) ... [2021-08-21 19:01:01,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 19:01:01,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 19:01:01,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 19:01:01,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 19:01:01,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:01" (1/1) ... [2021-08-21 19:01:01,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:01:01,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 19:01:01,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 19:01:01,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 19:01:01,550 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-21 19:01:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-21 19:01:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-21 19:01:01,551 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-21 19:01:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-21 19:01:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-21 19:01:01,551 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-21 19:01:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-21 19:01:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-21 19:01:01,552 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-21 19:01:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 19:01:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 19:01:01,553 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 19:01:01,876 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 19:01:01,876 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-21 19:01:01,877 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-08-21 19:01:01,877 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-08-21 19:01:01,879 INFO L202 PluginConnector]: Adding new model bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:01:01 BoogieIcfgContainer [2021-08-21 19:01:01,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 19:01:01,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 19:01:01,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 19:01:01,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 19:01:01,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:01" (1/2) ... [2021-08-21 19:01:01,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e36575a and model type bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:01:01, skipping insertion in model container [2021-08-21 19:01:01,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:01:01" (2/2) ... [2021-08-21 19:01:01,885 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct08.bpl [2021-08-21 19:01:01,891 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 19:01:01,891 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 19:01:01,891 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 19:01:01,891 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 19:01:01,974 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 19:01:02,024 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 19:01:02,032 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 19:01:02,032 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-08-21 19:01:16,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 137777 states, 114815 states have (on average 3.6617863519574967) internal successors, (420428), 137776 states have internal predecessors, (420428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:16,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-21 19:01:16,926 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:16,926 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:01:16,927 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:01:16,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:16,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1396047556, now seen corresponding path program 1 times [2021-08-21 19:01:16,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:16,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478827719] [2021-08-21 19:01:16,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:16,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:17,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:01:17,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:17,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478827719] [2021-08-21 19:01:17,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478827719] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:17,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:17,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-21 19:01:17,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392197914] [2021-08-21 19:01:17,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 19:01:17,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:17,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 19:01:17,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:01:17,430 INFO L87 Difference]: Start difference. First operand has 137777 states, 114815 states have (on average 3.6617863519574967) internal successors, (420428), 137776 states have internal predecessors, (420428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:20,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:20,069 INFO L93 Difference]: Finished difference Result 115909 states and 326565 transitions. [2021-08-21 19:01:20,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 19:01:20,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-21 19:01:20,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:20,858 INFO L225 Difference]: With dead ends: 115909 [2021-08-21 19:01:20,858 INFO L226 Difference]: Without dead ends: 71077 [2021-08-21 19:01:20,859 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:01:21,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71077 states. [2021-08-21 19:01:23,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71077 to 71077. [2021-08-21 19:01:24,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71077 states, 65610 states have (on average 4.1245084590763605) internal successors, (270609), 71076 states have internal predecessors, (270609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:25,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71077 states to 71077 states and 270609 transitions. [2021-08-21 19:01:25,380 INFO L78 Accepts]: Start accepts. Automaton has 71077 states and 270609 transitions. Word has length 8 [2021-08-21 19:01:25,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:25,382 INFO L470 AbstractCegarLoop]: Abstraction has 71077 states and 270609 transitions. [2021-08-21 19:01:25,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:25,382 INFO L276 IsEmpty]: Start isEmpty. Operand 71077 states and 270609 transitions. [2021-08-21 19:01:25,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-21 19:01:25,387 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:25,387 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:01:25,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 19:01:25,389 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:01:25,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:25,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1253862074, now seen corresponding path program 1 times [2021-08-21 19:01:25,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:25,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565549710] [2021-08-21 19:01:25,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:25,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:25,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:01:25,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:25,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565549710] [2021-08-21 19:01:25,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565549710] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:25,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:25,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 19:01:25,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327486212] [2021-08-21 19:01:25,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 19:01:25,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:25,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 19:01:25,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-21 19:01:25,721 INFO L87 Difference]: Start difference. First operand 71077 states and 270609 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:28,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:28,673 INFO L93 Difference]: Finished difference Result 165926 states and 745087 transitions. [2021-08-21 19:01:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 19:01:28,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-21 19:01:28,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:30,769 INFO L225 Difference]: With dead ends: 165926 [2021-08-21 19:01:30,770 INFO L226 Difference]: Without dead ends: 165926 [2021-08-21 19:01:30,770 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 23.2ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-21 19:01:31,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165926 states. [2021-08-21 19:01:37,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165926 to 142756. [2021-08-21 19:01:38,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142756 states, 137289 states have (on average 5.237098383701535) internal successors, (718996), 142755 states have internal predecessors, (718996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:39,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142756 states to 142756 states and 718996 transitions. [2021-08-21 19:01:39,979 INFO L78 Accepts]: Start accepts. Automaton has 142756 states and 718996 transitions. Word has length 12 [2021-08-21 19:01:39,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:39,980 INFO L470 AbstractCegarLoop]: Abstraction has 142756 states and 718996 transitions. [2021-08-21 19:01:39,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:39,980 INFO L276 IsEmpty]: Start isEmpty. Operand 142756 states and 718996 transitions. [2021-08-21 19:01:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-21 19:01:39,983 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:39,984 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:01:39,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 19:01:39,984 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:01:39,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:39,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1969739804, now seen corresponding path program 2 times [2021-08-21 19:01:39,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:39,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093014361] [2021-08-21 19:01:39,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:39,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:40,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:01:40,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:40,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093014361] [2021-08-21 19:01:40,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093014361] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:40,003 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:40,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 19:01:40,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501573831] [2021-08-21 19:01:40,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 19:01:40,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:40,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 19:01:40,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:01:40,005 INFO L87 Difference]: Start difference. First operand 142756 states and 718996 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:41,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:41,447 INFO L93 Difference]: Finished difference Result 128716 states and 527775 transitions. [2021-08-21 19:01:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 19:01:41,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-21 19:01:41,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:42,443 INFO L225 Difference]: With dead ends: 128716 [2021-08-21 19:01:42,443 INFO L226 Difference]: Without dead ends: 78649 [2021-08-21 19:01:42,444 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 [2021-08-21 19:01:42,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78649 states. [2021-08-21 19:01:44,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78649 to 78649. [2021-08-21 19:01:44,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78649 states, 73183 states have (on average 4.764221198912316) internal successors, (348660), 78648 states have internal predecessors, (348660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:45,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78649 states to 78649 states and 348660 transitions. [2021-08-21 19:01:45,538 INFO L78 Accepts]: Start accepts. Automaton has 78649 states and 348660 transitions. Word has length 12 [2021-08-21 19:01:45,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:45,538 INFO L470 AbstractCegarLoop]: Abstraction has 78649 states and 348660 transitions. [2021-08-21 19:01:45,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:45,538 INFO L276 IsEmpty]: Start isEmpty. Operand 78649 states and 348660 transitions. [2021-08-21 19:01:45,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-21 19:01:45,543 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:45,543 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:01:45,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 19:01:45,543 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:01:45,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:45,544 INFO L82 PathProgramCache]: Analyzing trace with hash -481021980, now seen corresponding path program 1 times [2021-08-21 19:01:45,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:45,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486860988] [2021-08-21 19:01:45,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:45,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:45,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:01:45,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:45,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486860988] [2021-08-21 19:01:45,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486860988] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:45,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:45,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 19:01:45,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298979505] [2021-08-21 19:01:45,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 19:01:45,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:45,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 19:01:45,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-21 19:01:45,639 INFO L87 Difference]: Start difference. First operand 78649 states and 348660 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:47,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:47,800 INFO L93 Difference]: Finished difference Result 141527 states and 673888 transitions. [2021-08-21 19:01:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-21 19:01:47,800 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-08-21 19:01:47,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:49,291 INFO L225 Difference]: With dead ends: 141527 [2021-08-21 19:01:49,292 INFO L226 Difference]: Without dead ends: 134573 [2021-08-21 19:01:49,292 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 25.5ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-21 19:01:49,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134573 states. [2021-08-21 19:01:53,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134573 to 96979. [2021-08-21 19:01:53,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96979 states, 91516 states have (on average 4.914266357795358) internal successors, (449734), 96978 states have internal predecessors, (449734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:54,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96979 states to 96979 states and 449734 transitions. [2021-08-21 19:01:54,604 INFO L78 Accepts]: Start accepts. Automaton has 96979 states and 449734 transitions. Word has length 15 [2021-08-21 19:01:54,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:54,605 INFO L470 AbstractCegarLoop]: Abstraction has 96979 states and 449734 transitions. [2021-08-21 19:01:54,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:54,605 INFO L276 IsEmpty]: Start isEmpty. Operand 96979 states and 449734 transitions. [2021-08-21 19:01:54,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-21 19:01:54,639 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:54,639 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:01:54,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 19:01:54,639 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:01:54,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:54,640 INFO L82 PathProgramCache]: Analyzing trace with hash 830851382, now seen corresponding path program 1 times [2021-08-21 19:01:54,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:54,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806823964] [2021-08-21 19:01:54,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:54,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:54,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:01:54,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:54,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806823964] [2021-08-21 19:01:54,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806823964] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:54,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:54,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 19:01:54,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223102617] [2021-08-21 19:01:54,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 19:01:54,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:54,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 19:01:54,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-21 19:01:54,774 INFO L87 Difference]: Start difference. First operand 96979 states and 449734 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:58,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:58,203 INFO L93 Difference]: Finished difference Result 174558 states and 851649 transitions. [2021-08-21 19:01:58,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 19:01:58,204 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-21 19:01:58,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:00,623 INFO L225 Difference]: With dead ends: 174558 [2021-08-21 19:02:00,623 INFO L226 Difference]: Without dead ends: 158821 [2021-08-21 19:02:00,623 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 31.0ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-21 19:02:01,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158821 states. [2021-08-21 19:02:05,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158821 to 107837. [2021-08-21 19:02:06,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107837 states, 102383 states have (on average 5.0189679927331685) internal successors, (513857), 107836 states have internal predecessors, (513857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:07,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107837 states to 107837 states and 513857 transitions. [2021-08-21 19:02:07,370 INFO L78 Accepts]: Start accepts. Automaton has 107837 states and 513857 transitions. Word has length 18 [2021-08-21 19:02:07,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:07,371 INFO L470 AbstractCegarLoop]: Abstraction has 107837 states and 513857 transitions. [2021-08-21 19:02:07,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:07,371 INFO L276 IsEmpty]: Start isEmpty. Operand 107837 states and 513857 transitions. [2021-08-21 19:02:07,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-21 19:02:07,472 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:07,473 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:07,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 19:02:07,473 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:02:07,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:07,474 INFO L82 PathProgramCache]: Analyzing trace with hash 570286480, now seen corresponding path program 1 times [2021-08-21 19:02:07,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:07,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490359670] [2021-08-21 19:02:07,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:07,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:07,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:07,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:07,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490359670] [2021-08-21 19:02:07,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490359670] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:07,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:07,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 19:02:07,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568281319] [2021-08-21 19:02:07,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-21 19:02:07,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:07,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-21 19:02:07,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-08-21 19:02:07,693 INFO L87 Difference]: Start difference. First operand 107837 states and 513857 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:10,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:10,871 INFO L93 Difference]: Finished difference Result 189999 states and 941596 transitions. [2021-08-21 19:02:10,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 19:02:10,872 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-08-21 19:02:10,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:12,763 INFO L225 Difference]: With dead ends: 189999 [2021-08-21 19:02:12,763 INFO L226 Difference]: Without dead ends: 165130 [2021-08-21 19:02:12,763 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 70.4ms TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-08-21 19:02:13,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165130 states. [2021-08-21 19:02:18,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165130 to 109331. [2021-08-21 19:02:18,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109331 states, 103904 states have (on average 5.033954419464121) internal successors, (523048), 109330 states have internal predecessors, (523048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:19,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109331 states to 109331 states and 523048 transitions. [2021-08-21 19:02:19,841 INFO L78 Accepts]: Start accepts. Automaton has 109331 states and 523048 transitions. Word has length 21 [2021-08-21 19:02:19,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:19,841 INFO L470 AbstractCegarLoop]: Abstraction has 109331 states and 523048 transitions. [2021-08-21 19:02:19,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:19,841 INFO L276 IsEmpty]: Start isEmpty. Operand 109331 states and 523048 transitions. [2021-08-21 19:02:19,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-21 19:02:19,991 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:19,991 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:19,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 19:02:19,991 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:02:19,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:19,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1628069334, now seen corresponding path program 1 times [2021-08-21 19:02:19,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:19,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574459804] [2021-08-21 19:02:19,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:19,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:20,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:20,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:20,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574459804] [2021-08-21 19:02:20,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574459804] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:20,138 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:20,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-21 19:02:20,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085854674] [2021-08-21 19:02:20,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-21 19:02:20,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:20,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-21 19:02:20,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-08-21 19:02:20,139 INFO L87 Difference]: Start difference. First operand 109331 states and 523048 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:23,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:23,450 INFO L93 Difference]: Finished difference Result 184960 states and 919484 transitions. [2021-08-21 19:02:23,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 19:02:23,451 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-08-21 19:02:23,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:25,537 INFO L225 Difference]: With dead ends: 184960 [2021-08-21 19:02:25,538 INFO L226 Difference]: Without dead ends: 150932 [2021-08-21 19:02:25,539 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 48.7ms TimeCoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-08-21 19:02:25,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150932 states. [2021-08-21 19:02:31,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150932 to 100673. [2021-08-21 19:02:31,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100673 states, 95327 states have (on average 4.921648640993633) internal successors, (469166), 100672 states have internal predecessors, (469166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:33,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100673 states to 100673 states and 469166 transitions. [2021-08-21 19:02:33,231 INFO L78 Accepts]: Start accepts. Automaton has 100673 states and 469166 transitions. Word has length 24 [2021-08-21 19:02:33,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:33,232 INFO L470 AbstractCegarLoop]: Abstraction has 100673 states and 469166 transitions. [2021-08-21 19:02:33,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:33,232 INFO L276 IsEmpty]: Start isEmpty. Operand 100673 states and 469166 transitions. [2021-08-21 19:02:33,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-21 19:02:33,430 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:33,430 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:33,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 19:02:33,430 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:02:33,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:33,431 INFO L82 PathProgramCache]: Analyzing trace with hash -687398670, now seen corresponding path program 1 times [2021-08-21 19:02:33,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:33,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767610790] [2021-08-21 19:02:33,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:33,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:33,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:33,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:33,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767610790] [2021-08-21 19:02:33,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767610790] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:33,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:33,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-21 19:02:33,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201333973] [2021-08-21 19:02:33,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-21 19:02:33,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:33,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-21 19:02:33,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-08-21 19:02:33,598 INFO L87 Difference]: Start difference. First operand 100673 states and 469166 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:36,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:36,544 INFO L93 Difference]: Finished difference Result 159837 states and 784138 transitions. [2021-08-21 19:02:36,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 19:02:36,544 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-08-21 19:02:36,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:37,468 INFO L225 Difference]: With dead ends: 159837 [2021-08-21 19:02:37,469 INFO L226 Difference]: Without dead ends: 118103 [2021-08-21 19:02:37,469 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 58.1ms TimeCoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-08-21 19:02:38,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118103 states. [2021-08-21 19:02:41,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118103 to 82307. [2021-08-21 19:02:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82307 states, 77204 states have (on average 4.685689860628983) internal successors, (361754), 82306 states have internal predecessors, (361754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:42,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82307 states to 82307 states and 361754 transitions. [2021-08-21 19:02:42,116 INFO L78 Accepts]: Start accepts. Automaton has 82307 states and 361754 transitions. Word has length 27 [2021-08-21 19:02:42,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:42,116 INFO L470 AbstractCegarLoop]: Abstraction has 82307 states and 361754 transitions. [2021-08-21 19:02:42,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:42,117 INFO L276 IsEmpty]: Start isEmpty. Operand 82307 states and 361754 transitions. [2021-08-21 19:02:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-21 19:02:42,248 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:42,248 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:42,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-21 19:02:42,248 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:02:42,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:42,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1557192452, now seen corresponding path program 1 times [2021-08-21 19:02:42,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:42,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493770471] [2021-08-21 19:02:42,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:42,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:42,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:42,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:42,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493770471] [2021-08-21 19:02:42,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493770471] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:42,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:42,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-21 19:02:42,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120657967] [2021-08-21 19:02:42,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-21 19:02:42,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:42,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-21 19:02:42,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=67, Unknown=0, NotChecked=0, Total=132 [2021-08-21 19:02:42,950 INFO L87 Difference]: Start difference. First operand 82307 states and 361754 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:44,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:44,577 INFO L93 Difference]: Finished difference Result 116907 states and 558015 transitions. [2021-08-21 19:02:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-21 19:02:44,578 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-08-21 19:02:44,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:45,445 INFO L225 Difference]: With dead ends: 116907 [2021-08-21 19:02:45,446 INFO L226 Difference]: Without dead ends: 73286 [2021-08-21 19:02:45,446 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 64.7ms TimeCoverageRelationStatistics Valid=65, Invalid=67, Unknown=0, NotChecked=0, Total=132 [2021-08-21 19:02:45,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73286 states. [2021-08-21 19:02:47,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73286 to 55787. [2021-08-21 19:02:47,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55787 states, 51413 states have (on average 4.372065430922141) internal successors, (224781), 55786 states have internal predecessors, (224781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:47,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55787 states to 55787 states and 224781 transitions. [2021-08-21 19:02:47,748 INFO L78 Accepts]: Start accepts. Automaton has 55787 states and 224781 transitions. Word has length 30 [2021-08-21 19:02:47,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:47,748 INFO L470 AbstractCegarLoop]: Abstraction has 55787 states and 224781 transitions. [2021-08-21 19:02:47,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:47,748 INFO L276 IsEmpty]: Start isEmpty. Operand 55787 states and 224781 transitions. [2021-08-21 19:02:48,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-08-21 19:02:48,226 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:48,228 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:48,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-21 19:02:48,233 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2021-08-21 19:02:48,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:48,236 INFO L82 PathProgramCache]: Analyzing trace with hash 417924684, now seen corresponding path program 1 times [2021-08-21 19:02:48,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:48,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729403322] [2021-08-21 19:02:48,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:48,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:48,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:48,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729403322] [2021-08-21 19:02:48,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729403322] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:48,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:48,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-21 19:02:48,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061477783] [2021-08-21 19:02:48,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-21 19:02:48,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:48,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-21 19:02:48,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=79, Unknown=0, NotChecked=0, Total=156 [2021-08-21 19:02:48,479 INFO L87 Difference]: Start difference. First operand 55787 states and 224781 transitions. Second operand has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:49,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:49,169 INFO L93 Difference]: Finished difference Result 38291 states and 207285 transitions. [2021-08-21 19:02:49,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-21 19:02:49,169 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 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 33 [2021-08-21 19:02:49,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:49,169 INFO L225 Difference]: With dead ends: 38291 [2021-08-21 19:02:49,169 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 19:02:49,170 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 96.7ms TimeCoverageRelationStatistics Valid=77, Invalid=79, Unknown=0, NotChecked=0, Total=156 [2021-08-21 19:02:49,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 19:02:49,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 19:02:49,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:49,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 19:02:49,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-08-21 19:02:49,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:49,170 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 19:02:49,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:49,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 19:02:49,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 19:02:49,172 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:02:49,173 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 19:02:49,173 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 19:02:49,173 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 19:02:49,174 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-21 19:02:49,174 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-21 19:02:49,174 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-21 19:02:49,174 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION [2021-08-21 19:02:49,174 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATION [2021-08-21 19:02:49,174 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8INUSE_VIOLATION [2021-08-21 19:02:49,175 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:02:49,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-21 19:02:49,179 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 19:02:49,180 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 19:02:49,181 INFO L202 PluginConnector]: Adding new model bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:02:49 BasicIcfg [2021-08-21 19:02:49,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 19:02:49,183 INFO L168 Benchmark]: Toolchain (without parser) took 107747.66 ms. Allocated memory was 180.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 161.1 MB in the beginning and 4.0 GB in the end (delta: -3.8 GB). Peak memory consumption was 4.0 GB. Max. memory is 8.0 GB. [2021-08-21 19:02:49,183 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 180.4 MB. Free memory is still 162.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 19:02:49,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.25 ms. Allocated memory is still 180.4 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:49,184 INFO L168 Benchmark]: Boogie Preprocessor took 14.22 ms. Allocated memory is still 180.4 MB. Free memory was 159.1 MB in the beginning and 158.2 MB in the end (delta: 903.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:49,184 INFO L168 Benchmark]: RCFGBuilder took 394.38 ms. Allocated memory is still 180.4 MB. Free memory was 158.2 MB in the beginning and 142.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:49,184 INFO L168 Benchmark]: TraceAbstraction took 107301.10 ms. Allocated memory was 180.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 142.2 MB in the beginning and 4.0 GB in the end (delta: -3.8 GB). Peak memory consumption was 4.0 GB. Max. memory is 8.0 GB. [2021-08-21 19:02:49,186 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 0.21 ms. Allocated memory is still 180.4 MB. Free memory is still 162.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 33.25 ms. Allocated memory is still 180.4 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.22 ms. Allocated memory is still 180.4 MB. Free memory was 159.1 MB in the beginning and 158.2 MB in the end (delta: 903.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 394.38 ms. Allocated memory is still 180.4 MB. Free memory was 158.2 MB in the beginning and 142.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 107301.10 ms. Allocated memory was 180.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 142.2 MB in the beginning and 4.0 GB in the end (delta: -3.8 GB). Peak memory consumption was 4.0 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2295253, positive: 1916356, positive conditional: 1916356, positive unconditional: 0, negative: 378897, negative conditional: 378897, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2191553, positive: 1916356, positive conditional: 0, positive unconditional: 1916356, negative: 275197, negative conditional: 0, negative unconditional: 275197, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 761, positive: 647, positive conditional: 0, positive unconditional: 647, negative: 114, negative conditional: 0, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 761, positive: 566, positive conditional: 0, positive unconditional: 566, negative: 195, negative conditional: 0, negative unconditional: 195, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 195, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 114, negative conditional: 0, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 555, positive: 314, positive conditional: 0, positive unconditional: 314, negative: 240, negative conditional: 0, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2191553, positive: 1915709, positive conditional: 0, positive unconditional: 1915709, negative: 275083, negative conditional: 0, negative unconditional: 275083, unknown: 761, unknown conditional: 0, unknown unconditional: 761] , Statistics on independence cache: Total cache size (in pairs): 761, Positive cache size: 647, Positive conditional cache size: 0, Positive unconditional cache size: 647, Negative cache size: 114, Negative conditional cache size: 0, Negative unconditional cache size: 114, Independence queries for same thread: 103700 - 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: 41]: 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 13 procedures, 70 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 107155.0ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 2035.0ms, AutomataDifference: 38317.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13962.2ms, PartialOrderReductionTime: 13943.3ms, HoareTripleCheckerStatistics: 582 SDtfs, 930 SDslu, 1231 SDs, 0 SdLazy, 1973 SolverSat, 785 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1510.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 424.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=142756occurred in iteration=2, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 50589.3ms AutomataMinimizationTime, 10 MinimizatonAttempts, 271101 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 30.4ms SsaConstructionTime, 647.6ms SatisfiabilityAnalysisTime, 1356.7ms InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 190 ConstructedInterpolants, 0 QuantifiedInterpolants, 896 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 19:02:49,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...