/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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct06.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 02:25:14,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 02:25:14,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 02:25:14,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-25 02:25:14,165 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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf [2021-10-25 02:25:14,190 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 02:25:14,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 02:25:14,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 02:25:14,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 02:25:14,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 02:25:14,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 02:25:14,199 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 02:25:14,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 02:25:14,199 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 02:25:14,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 02:25:14,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 02:25:14,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 02:25:14,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 02:25:14,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 02:25:14,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 02:25:14,200 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 02:25:14,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 02:25:14,200 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 02:25:14,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 02:25:14,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 02:25:14,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 02:25:14,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 02:25:14,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 02:25:14,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 02:25:14,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 02:25:14,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 02:25:14,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 02:25:14,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 02:25:14,201 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-10-25 02:25:14,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 02:25:14,201 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 02:25:14,202 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 02:25:14,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 02:25:14,202 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 02:25:14,202 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 02:25:14,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 02:25:14,202 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 02:25:14,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 02:25:14,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 02:25:14,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 02:25:14,398 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-25 02:25:14,398 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-25 02:25:14,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct06.bpl [2021-10-25 02:25:14,399 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct06.bpl' [2021-10-25 02:25:14,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 02:25:14,425 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-25 02:25:14,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 02:25:14,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 02:25:14,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 02:25:14,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:25:14" (1/1) ... [2021-10-25 02:25:14,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:25:14" (1/1) ... [2021-10-25 02:25:14,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 02:25:14,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 02:25:14,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 02:25:14,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 02:25:14,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:25:14" (1/1) ... [2021-10-25 02:25:14,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:25:14" (1/1) ... [2021-10-25 02:25:14,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:25:14" (1/1) ... [2021-10-25 02:25:14,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:25:14" (1/1) ... [2021-10-25 02:25:14,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:25:14" (1/1) ... [2021-10-25 02:25:14,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:25:14" (1/1) ... [2021-10-25 02:25:14,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:25:14" (1/1) ... [2021-10-25 02:25:14,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 02:25:14,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 02:25:14,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 02:25:14,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 02:25:14,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:25:14" (1/1) ... [2021-10-25 02:25:14,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 02:25:14,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:25:14,482 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) [2021-10-25 02:25:14,501 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 [2021-10-25 02:25:14,508 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-10-25 02:25:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-10-25 02:25:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-10-25 02:25:14,508 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-10-25 02:25:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-10-25 02:25:14,509 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-10-25 02:25:14,509 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-10-25 02:25:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-10-25 02:25:14,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-10-25 02:25:14,509 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-25 02:25:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 02:25:14,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 02:25:14,510 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-25 02:25:14,676 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 02:25:14,676 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-25 02:25:14,677 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-10-25 02:25:14,677 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-10-25 02:25:14,678 INFO L202 PluginConnector]: Adding new model bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:25:14 BoogieIcfgContainer [2021-10-25 02:25:14,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 02:25:14,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 02:25:14,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 02:25:14,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 02:25:14,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:25:14" (1/2) ... [2021-10-25 02:25:14,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d03e703 and model type bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:25:14, skipping insertion in model container [2021-10-25 02:25:14,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:25:14" (2/2) ... [2021-10-25 02:25:14,683 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct06.bpl [2021-10-25 02:25:14,685 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 02:25:14,685 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 02:25:14,686 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 02:25:14,686 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 02:25:14,711 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-25 02:25:14,754 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 02:25:14,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:25:14,772 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-25 02:25:14,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-25 02:25:14,814 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 02:25:14,817 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=PARTIAL_ORDER_FA, 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 [2021-10-25 02:25:14,818 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-25 02:25:17,925 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-25 02:25:17,925 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-25 02:25:17,925 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-25 02:25:17,925 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-25 02:25:17,926 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-10-25 02:25:17,926 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-10-25 02:25:17,926 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION [2021-10-25 02:25:17,931 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2021-10-25 02:25:17,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 02:25:17,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:25:17,949 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-25 02:25:17,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-10-25 02:25:17,952 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1 ======== [2021-10-25 02:25:17,953 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=PARTIAL_ORDER_FA, 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 [2021-10-25 02:25:17,953 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-25 02:25:18,059 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 02:25:18,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:25:18,062 INFO L82 PathProgramCache]: Analyzing trace with hash -623286894, now seen corresponding path program 1 times [2021-10-25 02:25:18,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:25:18,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124187467] [2021-10-25 02:25:18,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:25:18,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:25:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:25:18,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 02:25:18,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:25:18,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124187467] [2021-10-25 02:25:18,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124187467] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 02:25:18,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 02:25:18,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-25 02:25:18,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983857999] [2021-10-25 02:25:18,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-25 02:25:18,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:25:18,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-25 02:25:18,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-25 02:25:18,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:18,284 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:25:18,284 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) [2021-10-25 02:25:18,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:18,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:18,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-25 02:25:18,433 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 02:25:18,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:25:18,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1426335080, now seen corresponding path program 2 times [2021-10-25 02:25:18,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:25:18,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32157569] [2021-10-25 02:25:18,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:25:18,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:25:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:25:18,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 02:25:18,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:25:18,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32157569] [2021-10-25 02:25:18,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32157569] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 02:25:18,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 02:25:18,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-25 02:25:18,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134436197] [2021-10-25 02:25:18,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-25 02:25:18,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:25:18,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-25 02:25:18,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-25 02:25:18,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:18,465 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:25:18,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) 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) [2021-10-25 02:25:18,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:18,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:18,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:18,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:18,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-25 02:25:18,500 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 02:25:18,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:25:18,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1131714038, now seen corresponding path program 1 times [2021-10-25 02:25:18,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:25:18,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359462152] [2021-10-25 02:25:18,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:25:18,501 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:25:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:25:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 02:25:18,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:25:18,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359462152] [2021-10-25 02:25:18,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359462152] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 02:25:18,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 02:25:18,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-25 02:25:18,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709055188] [2021-10-25 02:25:18,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-25 02:25:18,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:25:18,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-25 02:25:18,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-25 02:25:18,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:18,542 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:25:18,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-10-25 02:25:18,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:18,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:18,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:18,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:18,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:18,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 02:25:18,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-25 02:25:18,652 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 02:25:18,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:25:18,652 INFO L82 PathProgramCache]: Analyzing trace with hash 36124852, now seen corresponding path program 1 times [2021-10-25 02:25:18,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:25:18,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616247863] [2021-10-25 02:25:18,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:25:18,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:25:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:25:18,726 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-25 02:25:18,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:25:18,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616247863] [2021-10-25 02:25:18,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616247863] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 02:25:18,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 02:25:18,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-25 02:25:18,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035903059] [2021-10-25 02:25:18,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-25 02:25:18,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:25:18,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-25 02:25:18,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-10-25 02:25:18,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:18,728 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:25:18,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 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) [2021-10-25 02:25:18,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:18,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:18,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 02:25:18,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:18,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 02:25:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 02:25:18,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-25 02:25:18,820 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 02:25:18,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:25:18,821 INFO L82 PathProgramCache]: Analyzing trace with hash 2101927841, now seen corresponding path program 1 times [2021-10-25 02:25:18,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:25:18,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911667118] [2021-10-25 02:25:18,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:25:18,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:25:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:25:18,986 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-25 02:25:18,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:25:18,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911667118] [2021-10-25 02:25:18,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911667118] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 02:25:18,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 02:25:18,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-25 02:25:18,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95824418] [2021-10-25 02:25:18,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-25 02:25:18,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:25:18,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-25 02:25:18,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-10-25 02:25:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:18,988 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:25:18,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 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) [2021-10-25 02:25:18,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:18,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:18,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 02:25:18,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 02:25:18,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:19,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:19,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:19,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 02:25:19,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 02:25:19,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 02:25:19,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-25 02:25:19,316 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 02:25:19,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:25:19,317 INFO L82 PathProgramCache]: Analyzing trace with hash -305124938, now seen corresponding path program 1 times [2021-10-25 02:25:19,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:25:19,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234780248] [2021-10-25 02:25:19,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:25:19,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:25:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:25:19,610 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 53 proven. 23 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-10-25 02:25:19,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:25:19,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234780248] [2021-10-25 02:25:19,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234780248] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:25:19,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818655304] [2021-10-25 02:25:19,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:25:19,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 02:25:19,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:25:19,644 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 02:25:19,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-25 02:25:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:25:19,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 69 conjunts are in the unsatisfiable core [2021-10-25 02:25:19,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 02:25:20,347 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 53 proven. 23 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-10-25 02:25:20,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818655304] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:25:20,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 02:25:20,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-10-25 02:25:20,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999265865] [2021-10-25 02:25:20,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-25 02:25:20,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:25:20,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-25 02:25:20,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-10-25 02:25:20,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:20,349 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:25:20,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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) [2021-10-25 02:25:20,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:20,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:20,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 02:25:20,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 02:25:20,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 02:25:20,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:22,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 02:25:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 02:25:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 02:25:22,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 02:25:22,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-25 02:25:22,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 02:25:22,744 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 02:25:22,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:25:22,744 INFO L82 PathProgramCache]: Analyzing trace with hash 59575588, now seen corresponding path program 1 times [2021-10-25 02:25:22,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:25:22,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020580201] [2021-10-25 02:25:22,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:25:22,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:25:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:25:23,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 481 proven. 487 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-10-25 02:25:23,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:25:23,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020580201] [2021-10-25 02:25:23,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020580201] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:25:23,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045002094] [2021-10-25 02:25:23,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:25:23,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 02:25:23,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:25:23,786 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 02:25:23,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-25 02:25:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:25:24,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 252 conjunts are in the unsatisfiable core [2021-10-25 02:25:24,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 02:25:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 481 proven. 487 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-10-25 02:25:25,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045002094] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:25:25,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 02:25:25,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-10-25 02:25:25,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116617241] [2021-10-25 02:25:25,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-25 02:25:25,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:25:25,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-25 02:25:25,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-10-25 02:25:25,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:25,203 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:25:25,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 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) [2021-10-25 02:25:25,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:25,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:25,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 02:25:25,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 02:25:25,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 02:25:25,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 02:25:25,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:43,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:43,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:43,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 02:25:43,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 02:25:43,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 02:25:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 02:25:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 02:25:43,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-25 02:25:43,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 02:25:43,815 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 02:25:43,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:25:43,816 INFO L82 PathProgramCache]: Analyzing trace with hash 433928059, now seen corresponding path program 1 times [2021-10-25 02:25:43,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:25:43,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706967934] [2021-10-25 02:25:43,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:25:43,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:25:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:25:44,427 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 245 proven. 118 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-10-25 02:25:44,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:25:44,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706967934] [2021-10-25 02:25:44,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706967934] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:25:44,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812981072] [2021-10-25 02:25:44,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:25:44,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 02:25:44,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:25:44,429 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 02:25:44,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-25 02:25:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:25:44,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 180 conjunts are in the unsatisfiable core [2021-10-25 02:25:44,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 02:25:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 245 proven. 118 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-10-25 02:25:45,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812981072] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:25:45,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 02:25:45,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-10-25 02:25:45,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86985369] [2021-10-25 02:25:45,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-25 02:25:45,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:25:45,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-25 02:25:45,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-10-25 02:25:45,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:25:45,686 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:25:45,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 10 states have internal predecessors, (64), 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) [2021-10-25 02:25:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 02:25:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 02:25:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 02:25:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 02:25:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 02:25:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 02:25:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.