/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized07.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 19:01:41,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 19:01:41,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 19:01:41,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-21 19:01:41,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-21 19:01:41,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-21 19:01:41,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-21 19:01:41,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-21 19:01:41,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-21 19:01:41,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-21 19:01:41,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-21 19:01:41,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-21 19:01:41,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-21 19:01:41,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-21 19:01:41,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-21 19:01:41,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-21 19:01:41,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-21 19:01:41,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-21 19:01:41,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-21 19:01:41,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-21 19:01:41,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-21 19:01:41,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-21 19:01:41,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-21 19:01:41,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-21 19:01:41,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-21 19:01:41,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-21 19:01:41,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-21 19:01:41,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-21 19:01:41,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-21 19:01:41,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-21 19:01:41,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-21 19:01:41,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-21 19:01:41,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-21 19:01:41,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-21 19:01:41,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-21 19:01:41,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-21 19:01:41,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-21 19:01:41,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-21 19:01:41,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 19:01:41,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 19:01:41,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 19:01:41,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-08-21 19:01:41,830 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 19:01:41,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 19:01:41,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 19:01:41,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 19:01:41,832 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 19:01:41,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 19:01:41,833 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 19:01:41,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 19:01:41,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 19:01:41,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 19:01:41,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 19:01:41,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 19:01:41,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 19:01:41,834 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 19:01:41,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 19:01:41,834 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 19:01:41,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 19:01:41,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 19:01:41,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 19:01:41,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 19:01:41,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 19:01:41,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:01:41,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 19:01:41,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 19:01:41,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 19:01:41,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 19:01:41,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 19:01:41,835 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 19:01:41,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 19:01:41,836 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 19:01:41,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 19:01:42,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 19:01:42,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 19:01:42,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 19:01:42,124 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-21 19:01:42,126 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-21 19:01:42,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized07.bpl [2021-08-21 19:01:42,127 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized07.bpl' [2021-08-21 19:01:42,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 19:01:42,143 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-21 19:01:42,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 19:01:42,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 19:01:42,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 19:01:42,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:42" (1/1) ... [2021-08-21 19:01:42,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:42" (1/1) ... [2021-08-21 19:01:42,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 19:01:42,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 19:01:42,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 19:01:42,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 19:01:42,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:42" (1/1) ... [2021-08-21 19:01:42,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:42" (1/1) ... [2021-08-21 19:01:42,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:42" (1/1) ... [2021-08-21 19:01:42,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:42" (1/1) ... [2021-08-21 19:01:42,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:42" (1/1) ... [2021-08-21 19:01:42,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:42" (1/1) ... [2021-08-21 19:01:42,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:42" (1/1) ... [2021-08-21 19:01:42,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 19:01:42,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 19:01:42,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 19:01:42,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 19:01:42,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:42" (1/1) ... [2021-08-21 19:01:42,185 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:01:42,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 19:01:42,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 19:01:42,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 19:01:42,235 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-21 19:01:42,235 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-21 19:01:42,235 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-21 19:01:42,235 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-21 19:01:42,235 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-21 19:01:42,235 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-21 19:01:42,235 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-21 19:01:42,235 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-21 19:01:42,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-21 19:01:42,236 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-21 19:01:42,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 19:01:42,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 19:01:42,236 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 19:01:42,412 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 19:01:42,412 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-21 19:01:42,413 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-08-21 19:01:42,413 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-08-21 19:01:42,414 INFO L202 PluginConnector]: Adding new model bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:01:42 BoogieIcfgContainer [2021-08-21 19:01:42,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 19:01:42,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 19:01:42,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 19:01:42,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 19:01:42,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:01:42" (1/2) ... [2021-08-21 19:01:42,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744f7d1c and model type bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:01:42, skipping insertion in model container [2021-08-21 19:01:42,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:01:42" (2/2) ... [2021-08-21 19:01:42,419 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-customized07.bpl [2021-08-21 19:01:42,422 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 19:01:42,433 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 19:01:42,433 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 19:01:42,433 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 19:01:42,514 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 19:01:42,555 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 19:01:42,561 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 19:01:42,562 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-08-21 19:01:46,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 45923 states, 38270 states have (on average 3.1761954533577215) internal successors, (121553), 45922 states have internal predecessors, (121553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:46,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-21 19:01:46,605 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:46,606 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:01:46,606 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 19:01:46,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:46,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1624091973, now seen corresponding path program 1 times [2021-08-21 19:01:46,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:46,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966758895] [2021-08-21 19:01:46,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:46,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:01:46,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:46,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966758895] [2021-08-21 19:01:46,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966758895] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:46,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:46,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-21 19:01:46,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364231834] [2021-08-21 19:01:46,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-21 19:01:46,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:46,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-21 19:01:46,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-21 19:01:46,926 INFO L87 Difference]: Start difference. First operand has 45923 states, 38270 states have (on average 3.1761954533577215) internal successors, (121553), 45922 states have internal predecessors, (121553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:48,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:48,227 INFO L93 Difference]: Finished difference Result 107815 states and 285707 transitions. [2021-08-21 19:01:48,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-21 19:01:48,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-21 19:01:48,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:48,736 INFO L225 Difference]: With dead ends: 107815 [2021-08-21 19:01:48,736 INFO L226 Difference]: Without dead ends: 57046 [2021-08-21 19:01:48,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-21 19:01:48,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57046 states. [2021-08-21 19:01:51,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57046 to 49481. [2021-08-21 19:01:51,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49481 states, 47659 states have (on average 4.594787972890745) internal successors, (218983), 49480 states have internal predecessors, (218983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:51,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49481 states to 49481 states and 218983 transitions. [2021-08-21 19:01:51,749 INFO L78 Accepts]: Start accepts. Automaton has 49481 states and 218983 transitions. Word has length 8 [2021-08-21 19:01:51,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:51,749 INFO L470 AbstractCegarLoop]: Abstraction has 49481 states and 218983 transitions. [2021-08-21 19:01:51,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:51,750 INFO L276 IsEmpty]: Start isEmpty. Operand 49481 states and 218983 transitions. [2021-08-21 19:01:51,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-21 19:01:51,750 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:51,750 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:01:51,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 19:01:51,751 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 19:01:51,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:51,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1678578052, now seen corresponding path program 1 times [2021-08-21 19:01:51,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:51,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252908032] [2021-08-21 19:01:51,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:51,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:01:51,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:51,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252908032] [2021-08-21 19:01:51,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252908032] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:51,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:51,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 19:01:51,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774716002] [2021-08-21 19:01:51,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 19:01:51,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:51,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 19:01:51,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:01:51,775 INFO L87 Difference]: Start difference. First operand 49481 states and 218983 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:52,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:52,356 INFO L93 Difference]: Finished difference Result 44584 states and 160511 transitions. [2021-08-21 19:01:52,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 19:01:52,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-21 19:01:52,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:52,511 INFO L225 Difference]: With dead ends: 44584 [2021-08-21 19:01:52,511 INFO L226 Difference]: Without dead ends: 29290 [2021-08-21 19:01:52,512 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:01:52,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29290 states. [2021-08-21 19:01:53,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29290 to 28892. [2021-08-21 19:01:53,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28892 states, 27071 states have (on average 4.001071257064756) internal successors, (108313), 28891 states have internal predecessors, (108313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:53,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28892 states to 28892 states and 108313 transitions. [2021-08-21 19:01:53,688 INFO L78 Accepts]: Start accepts. Automaton has 28892 states and 108313 transitions. Word has length 10 [2021-08-21 19:01:53,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:53,689 INFO L470 AbstractCegarLoop]: Abstraction has 28892 states and 108313 transitions. [2021-08-21 19:01:53,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:53,689 INFO L276 IsEmpty]: Start isEmpty. Operand 28892 states and 108313 transitions. [2021-08-21 19:01:53,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-21 19:01:53,693 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:53,693 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:01:53,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 19:01:53,694 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 19:01:53,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:53,695 INFO L82 PathProgramCache]: Analyzing trace with hash 2009219555, now seen corresponding path program 1 times [2021-08-21 19:01:53,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:53,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940837095] [2021-08-21 19:01:53,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:53,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:53,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:01:53,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:53,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940837095] [2021-08-21 19:01:53,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940837095] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:53,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:53,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 19:01:53,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492805419] [2021-08-21 19:01:53,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-21 19:01:53,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:53,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-21 19:01:53,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-21 19:01:53,761 INFO L87 Difference]: Start difference. First operand 28892 states and 108313 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:54,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:54,591 INFO L93 Difference]: Finished difference Result 57965 states and 238177 transitions. [2021-08-21 19:01:54,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 19:01:54,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-08-21 19:01:54,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:55,166 INFO L225 Difference]: With dead ends: 57965 [2021-08-21 19:01:55,166 INFO L226 Difference]: Without dead ends: 54948 [2021-08-21 19:01:55,167 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-21 19:01:55,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54948 states. [2021-08-21 19:01:56,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54948 to 34902. [2021-08-21 19:01:56,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34902 states, 33084 states have (on average 4.100894692298392) internal successors, (135674), 34901 states have internal predecessors, (135674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:56,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34902 states to 34902 states and 135674 transitions. [2021-08-21 19:01:56,698 INFO L78 Accepts]: Start accepts. Automaton has 34902 states and 135674 transitions. Word has length 13 [2021-08-21 19:01:56,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:56,699 INFO L470 AbstractCegarLoop]: Abstraction has 34902 states and 135674 transitions. [2021-08-21 19:01:56,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:56,699 INFO L276 IsEmpty]: Start isEmpty. Operand 34902 states and 135674 transitions. [2021-08-21 19:01:56,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-21 19:01:56,705 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:01:56,706 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:01:56,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 19:01:56,706 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 19:01:56,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:01:56,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1108481704, now seen corresponding path program 1 times [2021-08-21 19:01:56,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:01:56,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392923028] [2021-08-21 19:01:56,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:01:56,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:01:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:01:56,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:01:56,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:01:56,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392923028] [2021-08-21 19:01:56,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392923028] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:01:56,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:01:56,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-21 19:01:56,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726540330] [2021-08-21 19:01:56,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 19:01:56,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:01:56,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 19:01:56,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-21 19:01:56,747 INFO L87 Difference]: Start difference. First operand 34902 states and 135674 transitions. Second operand has 6 states, 5 states have (on average 3.2) 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) [2021-08-21 19:01:57,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:01:57,705 INFO L93 Difference]: Finished difference Result 77158 states and 329792 transitions. [2021-08-21 19:01:57,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-21 19:01:57,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) 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) Word has length 16 [2021-08-21 19:01:57,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:01:58,397 INFO L225 Difference]: With dead ends: 77158 [2021-08-21 19:01:58,397 INFO L226 Difference]: Without dead ends: 69285 [2021-08-21 19:01:58,398 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-21 19:01:58,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69285 states. [2021-08-21 19:01:59,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69285 to 37946. [2021-08-21 19:01:59,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37946 states, 36137 states have (on average 4.186318731494037) internal successors, (151281), 37945 states have internal predecessors, (151281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:01:59,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37946 states to 37946 states and 151281 transitions. [2021-08-21 19:01:59,993 INFO L78 Accepts]: Start accepts. Automaton has 37946 states and 151281 transitions. Word has length 16 [2021-08-21 19:01:59,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:01:59,993 INFO L470 AbstractCegarLoop]: Abstraction has 37946 states and 151281 transitions. [2021-08-21 19:01:59,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) 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) [2021-08-21 19:01:59,993 INFO L276 IsEmpty]: Start isEmpty. Operand 37946 states and 151281 transitions. [2021-08-21 19:02:00,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-21 19:02:00,011 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:00,011 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:00,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 19:02:00,011 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 19:02:00,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:00,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1731957195, now seen corresponding path program 1 times [2021-08-21 19:02:00,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:00,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853469239] [2021-08-21 19:02:00,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:00,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:00,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:00,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:00,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853469239] [2021-08-21 19:02:00,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853469239] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:00,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:00,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 19:02:00,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707830761] [2021-08-21 19:02:00,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 19:02:00,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:00,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 19:02:00,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-21 19:02:00,094 INFO L87 Difference]: Start difference. First operand 37946 states and 151281 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:01,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:01,580 INFO L93 Difference]: Finished difference Result 86089 states and 375410 transitions. [2021-08-21 19:02:01,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 19:02:01,589 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-08-21 19:02:01,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:02,024 INFO L225 Difference]: With dead ends: 86089 [2021-08-21 19:02:02,024 INFO L226 Difference]: Without dead ends: 72343 [2021-08-21 19:02:02,025 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.9ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-21 19:02:02,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72343 states. [2021-08-21 19:02:03,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72343 to 38210. [2021-08-21 19:02:03,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38210 states, 36428 states have (on average 4.2376468650488635) internal successors, (154369), 38209 states have internal predecessors, (154369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:03,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38210 states to 38210 states and 154369 transitions. [2021-08-21 19:02:03,736 INFO L78 Accepts]: Start accepts. Automaton has 38210 states and 154369 transitions. Word has length 19 [2021-08-21 19:02:03,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:03,737 INFO L470 AbstractCegarLoop]: Abstraction has 38210 states and 154369 transitions. [2021-08-21 19:02:03,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:03,738 INFO L276 IsEmpty]: Start isEmpty. Operand 38210 states and 154369 transitions. [2021-08-21 19:02:03,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-21 19:02:03,759 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:03,759 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:03,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 19:02:03,759 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 19:02:03,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:03,760 INFO L82 PathProgramCache]: Analyzing trace with hash -123493034, now seen corresponding path program 1 times [2021-08-21 19:02:03,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:03,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161857479] [2021-08-21 19:02:03,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:03,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:03,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:03,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:03,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161857479] [2021-08-21 19:02:03,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161857479] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:03,813 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:03,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 19:02:03,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037207999] [2021-08-21 19:02:03,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 19:02:03,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:03,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 19:02:03,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-21 19:02:03,814 INFO L87 Difference]: Start difference. First operand 38210 states and 154369 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:05,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:05,269 INFO L93 Difference]: Finished difference Result 82573 states and 361271 transitions. [2021-08-21 19:02:05,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 19:02:05,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-08-21 19:02:05,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:05,627 INFO L225 Difference]: With dead ends: 82573 [2021-08-21 19:02:05,628 INFO L226 Difference]: Without dead ends: 62931 [2021-08-21 19:02:05,628 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.9ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-21 19:02:05,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62931 states. [2021-08-21 19:02:07,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62931 to 36008. [2021-08-21 19:02:07,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36008 states, 34307 states have (on average 4.251989389920424) internal successors, (145873), 36007 states have internal predecessors, (145873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:07,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36008 states to 36008 states and 145873 transitions. [2021-08-21 19:02:07,273 INFO L78 Accepts]: Start accepts. Automaton has 36008 states and 145873 transitions. Word has length 22 [2021-08-21 19:02:07,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:07,273 INFO L470 AbstractCegarLoop]: Abstraction has 36008 states and 145873 transitions. [2021-08-21 19:02:07,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:07,273 INFO L276 IsEmpty]: Start isEmpty. Operand 36008 states and 145873 transitions. [2021-08-21 19:02:07,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-21 19:02:07,293 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:07,293 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:07,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 19:02:07,294 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 19:02:07,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:07,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1762281959, now seen corresponding path program 1 times [2021-08-21 19:02:07,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:07,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93028470] [2021-08-21 19:02:07,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:07,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:07,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:07,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:07,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93028470] [2021-08-21 19:02:07,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93028470] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:07,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:07,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 19:02:07,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560073026] [2021-08-21 19:02:07,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-21 19:02:07,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:07,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-21 19:02:07,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-21 19:02:07,359 INFO L87 Difference]: Start difference. First operand 36008 states and 145873 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:08,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:08,446 INFO L93 Difference]: Finished difference Result 66544 states and 289225 transitions. [2021-08-21 19:02:08,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 19:02:08,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-08-21 19:02:08,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:08,661 INFO L225 Difference]: With dead ends: 66544 [2021-08-21 19:02:08,662 INFO L226 Difference]: Without dead ends: 43505 [2021-08-21 19:02:08,662 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.2ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-21 19:02:08,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43505 states. [2021-08-21 19:02:09,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43505 to 30479. [2021-08-21 19:02:09,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30479 states, 29021 states have (on average 4.270080286688949) internal successors, (123922), 30478 states have internal predecessors, (123922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:09,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30479 states to 30479 states and 123922 transitions. [2021-08-21 19:02:09,941 INFO L78 Accepts]: Start accepts. Automaton has 30479 states and 123922 transitions. Word has length 25 [2021-08-21 19:02:09,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:09,941 INFO L470 AbstractCegarLoop]: Abstraction has 30479 states and 123922 transitions. [2021-08-21 19:02:09,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:09,942 INFO L276 IsEmpty]: Start isEmpty. Operand 30479 states and 123922 transitions. [2021-08-21 19:02:09,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-21 19:02:09,956 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:09,956 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:09,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 19:02:09,956 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2021-08-21 19:02:09,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:09,957 INFO L82 PathProgramCache]: Analyzing trace with hash 214579668, now seen corresponding path program 1 times [2021-08-21 19:02:09,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:09,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034662375] [2021-08-21 19:02:09,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:09,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:10,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:10,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:10,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034662375] [2021-08-21 19:02:10,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034662375] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:10,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:10,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 19:02:10,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407556765] [2021-08-21 19:02:10,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-21 19:02:10,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:10,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-21 19:02:10,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-21 19:02:10,050 INFO L87 Difference]: Start difference. First operand 30479 states and 123922 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:10,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:10,629 INFO L93 Difference]: Finished difference Result 21731 states and 102051 transitions. [2021-08-21 19:02:10,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 19:02:10,629 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-08-21 19:02:10,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:10,629 INFO L225 Difference]: With dead ends: 21731 [2021-08-21 19:02:10,629 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 19:02:10,630 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.2ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-21 19:02:10,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 19:02:10,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 19:02:10,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:10,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 19:02:10,630 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-08-21 19:02:10,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:10,631 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 19:02:10,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:10,631 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 19:02:10,631 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 19:02:10,633 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:02:10,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 19:02:10,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 19:02:10,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 19:02:10,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-21 19:02:10,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-21 19:02:10,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-21 19:02:10,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION [2021-08-21 19:02:10,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATION [2021-08-21 19:02:10,635 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:02:10,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-21 19:02:10,638 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 19:02:10,639 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 19:02:10,640 INFO L202 PluginConnector]: Adding new model bluetooth-customized07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:02:10 BasicIcfg [2021-08-21 19:02:10,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 19:02:10,641 INFO L168 Benchmark]: Toolchain (without parser) took 28497.95 ms. Allocated memory was 210.8 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 190.9 MB in the beginning and 4.8 GB in the end (delta: -4.6 GB). Peak memory consumption was 2.5 GB. Max. memory is 8.0 GB. [2021-08-21 19:02:10,641 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 210.8 MB. Free memory is still 192.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 19:02:10,642 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.32 ms. Allocated memory is still 210.8 MB. Free memory was 190.9 MB in the beginning and 189.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:10,642 INFO L168 Benchmark]: Boogie Preprocessor took 9.80 ms. Allocated memory is still 210.8 MB. Free memory was 189.0 MB in the beginning and 188.0 MB in the end (delta: 949.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:10,642 INFO L168 Benchmark]: RCFGBuilder took 234.27 ms. Allocated memory is still 210.8 MB. Free memory was 188.0 MB in the beginning and 173.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:10,642 INFO L168 Benchmark]: TraceAbstraction took 28224.85 ms. Allocated memory was 210.8 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 173.0 MB in the beginning and 4.8 GB in the end (delta: -4.6 GB). Peak memory consumption was 2.5 GB. Max. memory is 8.0 GB. [2021-08-21 19:02:10,643 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 210.8 MB. Free memory is still 192.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.32 ms. Allocated memory is still 210.8 MB. Free memory was 190.9 MB in the beginning and 189.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.80 ms. Allocated memory is still 210.8 MB. Free memory was 189.0 MB in the beginning and 188.0 MB in the end (delta: 949.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 234.27 ms. Allocated memory is still 210.8 MB. Free memory was 188.0 MB in the beginning and 173.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 28224.85 ms. Allocated memory was 210.8 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 173.0 MB in the beginning and 4.8 GB in the end (delta: -4.6 GB). Peak memory consumption was 2.5 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 602371, positive: 528603, positive conditional: 528603, positive unconditional: 0, negative: 73768, negative conditional: 73768, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 574962, positive: 528603, positive conditional: 0, positive unconditional: 528603, negative: 46359, negative conditional: 0, negative unconditional: 46359, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 577, positive: 540, positive conditional: 0, positive unconditional: 540, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 577, positive: 410, positive conditional: 0, positive unconditional: 410, negative: 167, negative conditional: 0, negative unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 167, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 296, positive: 234, positive conditional: 0, positive unconditional: 234, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 574962, positive: 528063, positive conditional: 0, positive unconditional: 528063, negative: 46322, negative conditional: 0, negative unconditional: 46322, unknown: 577, unknown conditional: 0, unknown unconditional: 577] , Statistics on independence cache: Total cache size (in pairs): 577, Positive cache size: 540, Positive conditional cache size: 0, Positive unconditional cache size: 540, Negative cache size: 37, Negative conditional cache size: 0, Negative unconditional cache size: 37, Independence queries for same thread: 27409 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 40]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 12 procedures, 65 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 28083.0ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 299.3ms, AutomataDifference: 11326.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3828.0ms, PartialOrderReductionTime: 3812.5ms, HoareTripleCheckerStatistics: 321 SDtfs, 545 SDslu, 538 SDs, 0 SdLazy, 1140 SolverSat, 498 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 893.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 131.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=49481occurred in iteration=1, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11940.2ms AutomataMinimizationTime, 8 MinimizatonAttempts, 133430 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.1ms SsaConstructionTime, 60.1ms SatisfiabilityAnalysisTime, 363.5ms InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 381 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 19:02:10,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...