/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-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized08.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 10:35:16,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 10:35:16,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 10:35:16,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-25 10:35:16,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-25 10:35:16,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-25 10:35:16,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-25 10:35:16,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-25 10:35:16,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-25 10:35:16,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-25 10:35:16,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-25 10:35:16,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-25 10:35:16,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-25 10:35:16,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-25 10:35:16,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-25 10:35:16,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-25 10:35:16,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-25 10:35:16,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-25 10:35:16,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-25 10:35:16,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-25 10:35:16,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-25 10:35:16,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-25 10:35:16,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-25 10:35:16,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-25 10:35:16,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-25 10:35:16,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-25 10:35:16,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-25 10:35:16,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-25 10:35:16,914 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-Random7777.epf [2021-10-25 10:35:16,942 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 10:35:16,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 10:35:16,942 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 10:35:16,942 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 10:35:16,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 10:35:16,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 10:35:16,943 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 10:35:16,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 10:35:16,944 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 10:35:16,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 10:35:16,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 10:35:16,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 10:35:16,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 10:35:16,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 10:35:16,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 10:35:16,944 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 10:35:16,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 10:35:16,945 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 10:35:16,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 10:35:16,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 10:35:16,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 10:35:16,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 10:35:16,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 10:35:16,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 10:35:16,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 10:35:16,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 10:35:16,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 10:35:16,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 10:35:16,946 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-25 10:35:16,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 10:35:16,946 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 10:35:16,946 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 10:35:16,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 10:35:16,946 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 10:35:16,946 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 10:35:16,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 10:35:16,946 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 [2021-10-25 10:35:16,947 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 10:35:17,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 10:35:17,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 10:35:17,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 10:35:17,196 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-25 10:35:17,197 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-25 10:35:17,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized08.bpl [2021-10-25 10:35:17,198 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized08.bpl' [2021-10-25 10:35:17,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 10:35:17,223 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-25 10:35:17,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 10:35:17,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 10:35:17,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 10:35:17,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:35:17" (1/1) ... [2021-10-25 10:35:17,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:35:17" (1/1) ... [2021-10-25 10:35:17,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 10:35:17,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 10:35:17,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 10:35:17,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 10:35:17,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:35:17" (1/1) ... [2021-10-25 10:35:17,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:35:17" (1/1) ... [2021-10-25 10:35:17,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:35:17" (1/1) ... [2021-10-25 10:35:17,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:35:17" (1/1) ... [2021-10-25 10:35:17,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:35:17" (1/1) ... [2021-10-25 10:35:17,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:35:17" (1/1) ... [2021-10-25 10:35:17,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:35:17" (1/1) ... [2021-10-25 10:35:17,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 10:35:17,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 10:35:17,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 10:35:17,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 10:35:17,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:35:17" (1/1) ... [2021-10-25 10:35:17,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 10:35:17,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:35:17,304 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 10:35:17,308 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 10:35:17,331 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-10-25 10:35:17,331 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-10-25 10:35:17,331 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-10-25 10:35:17,331 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-10-25 10:35:17,331 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-10-25 10:35:17,331 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-10-25 10:35:17,331 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-10-25 10:35:17,331 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-10-25 10:35:17,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-10-25 10:35:17,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-25 10:35:17,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 10:35:17,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 10:35:17,332 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 10:35:17,472 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 10:35:17,472 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-25 10:35:17,473 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-10-25 10:35:17,473 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-10-25 10:35:17,474 INFO L202 PluginConnector]: Adding new model bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:35:17 BoogieIcfgContainer [2021-10-25 10:35:17,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 10:35:17,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 10:35:17,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 10:35:17,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 10:35:17,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:35:17" (1/2) ... [2021-10-25 10:35:17,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f695d9 and model type bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:35:17, skipping insertion in model container [2021-10-25 10:35:17,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:35:17" (2/2) ... [2021-10-25 10:35:17,480 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-customized08.bpl [2021-10-25 10:35:17,483 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 10:35:17,483 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 10:35:17,483 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 10:35:17,483 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 10:35:17,576 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-25 10:35:17,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 10:35:17,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:35:17,608 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 10:35:17,609 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 10:35:17,628 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 10:35:17,632 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 10:35:17,632 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-25 10:35:44,387 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-25 10:35:44,388 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-25 10:35:44,388 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-25 10:35:44,388 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-25 10:35:44,388 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-10-25 10:35:44,388 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-10-25 10:35:44,388 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION [2021-10-25 10:35:44,389 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATION [2021-10-25 10:35:44,389 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8INUSE_VIOLATION [2021-10-25 10:35:44,397 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2021-10-25 10:35:44,409 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 10:35:44,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:35:44,410 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 10:35:44,412 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 10:35:44,417 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1 ======== [2021-10-25 10:35:44,418 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 10:35:44,418 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-25 10:35:44,977 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 10:35:44,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:35:44,981 INFO L82 PathProgramCache]: Analyzing trace with hash 886648196, now seen corresponding path program 1 times [2021-10-25 10:35:44,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:35:44,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754997350] [2021-10-25 10:35:44,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:35:44,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:35:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:35:45,266 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-25 10:35:45,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:35:45,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754997350] [2021-10-25 10:35:45,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754997350] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 10:35:45,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 10:35:45,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-25 10:35:45,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247760817] [2021-10-25 10:35:45,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-25 10:35:45,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:35:45,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-25 10:35:45,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-25 10:35:45,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:35:45,291 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:35:45,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 10:35:45,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:35:46,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 10:35:46,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-25 10:35:46,275 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 10:35:46,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:35:46,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1642827370, now seen corresponding path program 1 times [2021-10-25 10:35:46,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:35:46,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372867380] [2021-10-25 10:35:46,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:35:46,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:35:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:35:46,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:35:46,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:35:46,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372867380] [2021-10-25 10:35:46,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372867380] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:35:46,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831294570] [2021-10-25 10:35:46,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:35:46,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:35:46,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:35:46,405 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 10:35:46,406 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 10:35:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:35:46,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-25 10:35:46,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:35:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:35:46,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831294570] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:35:46,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:35:46,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-25 10:35:46,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452680631] [2021-10-25 10:35:46,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-25 10:35:46,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:35:46,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-25 10:35:46,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-25 10:35:46,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:35:46,566 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:35:46,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 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) [2021-10-25 10:35:46,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 10:35:46,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:35:46,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 10:35:46,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:35:46,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-25 10:35:47,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:35:47,120 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 10:35:47,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:35:47,120 INFO L82 PathProgramCache]: Analyzing trace with hash -687368371, now seen corresponding path program 1 times [2021-10-25 10:35:47,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:35:47,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875887664] [2021-10-25 10:35:47,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:35:47,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:35:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:35:47,239 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:35:47,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:35:47,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875887664] [2021-10-25 10:35:47,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875887664] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 10:35:47,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 10:35:47,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-25 10:35:47,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939035776] [2021-10-25 10:35:47,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-25 10:35:47,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:35:47,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-25 10:35:47,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-10-25 10:35:47,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:35:47,243 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:35:47,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 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 10:35:47,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 10:35:47,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:35:47,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:35:47,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 10:35:47,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:35:47,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:35:47,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-25 10:35:47,436 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 10:35:47,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:35:47,436 INFO L82 PathProgramCache]: Analyzing trace with hash 272587086, now seen corresponding path program 1 times [2021-10-25 10:35:47,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:35:47,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769308624] [2021-10-25 10:35:47,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:35:47,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:35:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:35:47,530 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:35:47,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:35:47,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769308624] [2021-10-25 10:35:47,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769308624] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:35:47,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093184381] [2021-10-25 10:35:47,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:35:47,531 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:35:47,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:35:47,532 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 10:35:47,533 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 10:35:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:35:47,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-25 10:35:47,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:35:47,692 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:35:47,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093184381] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:35:47,693 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:35:47,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-25 10:35:47,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436463753] [2021-10-25 10:35:47,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-25 10:35:47,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:35:47,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-25 10:35:47,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-25 10:35:47,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:35:47,694 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:35:47,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 10:35:47,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 10:35:47,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:35:47,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:35:47,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:35:48,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 10:35:48,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:35:48,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:35:48,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 10:35:48,650 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 10:35:48,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:35:48,828 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 10:35:48,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:35:48,828 INFO L82 PathProgramCache]: Analyzing trace with hash 455947434, now seen corresponding path program 1 times [2021-10-25 10:35:48,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:35:48,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056241377] [2021-10-25 10:35:48,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:35:48,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:35:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:35:48,974 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-25 10:35:48,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:35:48,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056241377] [2021-10-25 10:35:48,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056241377] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:35:48,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412820382] [2021-10-25 10:35:48,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:35:48,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:35:48,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:35:48,980 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 10:35:48,981 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 10:35:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:35:49,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-25 10:35:49,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:35:49,187 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-25 10:35:49,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412820382] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:35:49,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:35:49,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 14 [2021-10-25 10:35:49,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759347606] [2021-10-25 10:35:49,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-25 10:35:49,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:35:49,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-25 10:35:49,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2021-10-25 10:35:49,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:35:49,190 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:35:49,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 14 states have internal predecessors, (86), 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 10:35:49,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 10:35:49,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:35:49,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:35:49,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 10:35:49,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:35:52,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 10:35:52,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:35:52,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:35:52,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 10:35:52,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 10:35:52,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-25 10:35:53,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:35:53,110 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 10:35:53,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:35:53,111 INFO L82 PathProgramCache]: Analyzing trace with hash -411562365, now seen corresponding path program 1 times [2021-10-25 10:35:53,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:35:53,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220436029] [2021-10-25 10:35:53,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:35:53,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:35:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:35:53,258 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:35:53,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:35:53,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220436029] [2021-10-25 10:35:53,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220436029] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:35:53,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945712375] [2021-10-25 10:35:53,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:35:53,259 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:35:53,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:35:53,260 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 10:35:53,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-25 10:35:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:35:53,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-25 10:35:53,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:35:53,480 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:35:53,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945712375] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:35:53,481 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:35:53,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-25 10:35:53,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126641823] [2021-10-25 10:35:53,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-25 10:35:53,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:35:53,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-25 10:35:53,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-25 10:35:53,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:35:53,483 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:35:53,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 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 10:35:53,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 10:35:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:35:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:35:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 10:35:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 10:35:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:37:27,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 10:37:27,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:37:27,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:37:27,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 10:37:27,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 10:37:27,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 10:37:27,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-25 10:37:27,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:37:27,985 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 10:37:27,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:37:27,986 INFO L82 PathProgramCache]: Analyzing trace with hash 749623601, now seen corresponding path program 1 times [2021-10-25 10:37:27,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:37:27,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405330892] [2021-10-25 10:37:27,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:37:27,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:37:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:37:28,169 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 36 proven. 20 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-25 10:37:28,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:37:28,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405330892] [2021-10-25 10:37:28,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405330892] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:37:28,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182862942] [2021-10-25 10:37:28,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:37:28,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:37:28,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:37:28,171 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 10:37:28,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-25 10:37:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:37:28,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-25 10:37:28,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:37:28,526 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 28 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-25 10:37:28,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182862942] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:37:28,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:37:28,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2021-10-25 10:37:28,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402304541] [2021-10-25 10:37:28,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-25 10:37:28,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:37:28,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-25 10:37:28,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=207, Unknown=0, NotChecked=0, Total=342 [2021-10-25 10:37:28,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:37:28,527 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:37:28,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.526315789473684) internal successors, (124), 18 states have internal predecessors, (124), 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 10:37:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 10:37:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:37:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:37:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 10:37:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 10:37:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 10:37:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.