/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-correct07.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 20:48:47,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 20:48:47,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 20:48:47,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 20:48:47,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-06 20:48:47,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-06 20:48:47,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-06 20:48:47,488 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 [2021-08-06 20:48:47,530 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 20:48:47,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 20:48:47,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 20:48:47,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 20:48:47,533 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 20:48:47,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 20:48:47,533 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 20:48:47,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 20:48:47,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 20:48:47,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 20:48:47,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 20:48:47,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 20:48:47,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 20:48:47,535 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 20:48:47,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 20:48:47,535 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 20:48:47,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 20:48:47,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 20:48:47,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 20:48:47,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 20:48:47,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 20:48:47,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 20:48:47,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 20:48:47,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 20:48:47,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 20:48:47,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 20:48:47,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 20:48:47,536 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 20:48:47,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 20:48:47,536 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-06 20:48:47,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 20:48:47,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 20:48:47,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 20:48:47,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 20:48:47,823 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-06 20:48:47,824 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-06 20:48:47,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct07.bpl [2021-08-06 20:48:47,826 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct07.bpl' [2021-08-06 20:48:47,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 20:48:47,856 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-06 20:48:47,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 20:48:47,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 20:48:47,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 20:48:47,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:48:47" (1/1) ... [2021-08-06 20:48:47,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:48:47" (1/1) ... [2021-08-06 20:48:47,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 20:48:47,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 20:48:47,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 20:48:47,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 20:48:47,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:48:47" (1/1) ... [2021-08-06 20:48:47,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:48:47" (1/1) ... [2021-08-06 20:48:47,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:48:47" (1/1) ... [2021-08-06 20:48:47,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:48:47" (1/1) ... [2021-08-06 20:48:47,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:48:47" (1/1) ... [2021-08-06 20:48:47,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:48:47" (1/1) ... [2021-08-06 20:48:47,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:48:47" (1/1) ... [2021-08-06 20:48:47,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 20:48:47,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 20:48:47,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 20:48:47,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 20:48:47,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:48:47" (1/1) ... [2021-08-06 20:48:47,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 20:48:47,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 20:48:47,929 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) [2021-08-06 20:48:47,932 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 [2021-08-06 20:48:47,972 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-06 20:48:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-06 20:48:47,972 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-06 20:48:47,973 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-06 20:48:47,973 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-06 20:48:47,973 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-06 20:48:47,974 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-06 20:48:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-06 20:48:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-06 20:48:47,974 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-06 20:48:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 20:48:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 20:48:47,975 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-06 20:48:48,131 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 20:48:48,131 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-06 20:48:48,132 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-08-06 20:48:48,132 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-08-06 20:48:48,133 INFO L202 PluginConnector]: Adding new model bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 08:48:48 BoogieIcfgContainer [2021-08-06 20:48:48,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 20:48:48,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 20:48:48,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 20:48:48,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 20:48:48,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:48:47" (1/2) ... [2021-08-06 20:48:48,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e60aea and model type bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 08:48:48, skipping insertion in model container [2021-08-06 20:48:48,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 08:48:48" (2/2) ... [2021-08-06 20:48:48,145 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct07.bpl [2021-08-06 20:48:48,148 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 20:48:48,148 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 20:48:48,148 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 20:48:48,148 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 20:48:48,177 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-06 20:48:48,203 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 20:48:48,207 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 [2021-08-06 20:48:48,207 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-08-06 20:48:49,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 10931 states, 9110 states have (on average 2.941273326015368) internal successors, (26795), 10930 states have internal predecessors, (26795), 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) [2021-08-06 20:48:49,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 20:48:49,775 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 20:48:49,775 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 20:48:49,775 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-06 20:48:49,775 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-06 20:48:49,776 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-06 20:48:49,776 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-06 20:48:49,776 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION [2021-08-06 20:48:49,776 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATION [2021-08-06 20:48:49,778 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2021-08-06 20:48:49,781 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1 ======== [2021-08-06 20:48:49,782 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 [2021-08-06 20:48:49,782 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-06 20:48:56,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 43739 states, 43715 states have (on average 7.8320713713828205) internal successors, (342379), 43738 states have internal predecessors, (342379), 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) [2021-08-06 20:48:56,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-06 20:48:56,477 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 20:48:56,482 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 20:48:56,483 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 20:48:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 20:48:56,487 INFO L82 PathProgramCache]: Analyzing trace with hash 425563323, now seen corresponding path program 1 times [2021-08-06 20:48:56,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 20:48:56,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728962632] [2021-08-06 20:48:56,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:48:56,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 20:48:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:48:56,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 20:48:56,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 20:48:56,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728962632] [2021-08-06 20:48:56,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728962632] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 20:48:56,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 20:48:56,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-06 20:48:56,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214582265] [2021-08-06 20:48:56,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-06 20:48:56,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 20:48:56,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-06 20:48:56,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 20:48:57,112 INFO L87 Difference]: Start difference. First operand has 43739 states, 43715 states have (on average 7.8320713713828205) internal successors, (342379), 43738 states have internal predecessors, (342379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:48:58,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 20:48:58,558 INFO L93 Difference]: Finished difference Result 47383 states and 365962 transitions. [2021-08-06 20:48:58,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-06 20:48:58,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-06 20:48:58,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 20:48:59,481 INFO L225 Difference]: With dead ends: 47383 [2021-08-06 20:48:59,481 INFO L226 Difference]: Without dead ends: 36409 [2021-08-06 20:48:59,482 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 20:48:59,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36409 states. [2021-08-06 20:49:01,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36409 to 36409. [2021-08-06 20:49:02,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36409 states, 36403 states have (on average 7.697057934785595) internal successors, (280196), 36408 states have internal predecessors, (280196), 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) [2021-08-06 20:49:02,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36409 states to 36409 states and 280196 transitions. [2021-08-06 20:49:02,924 INFO L78 Accepts]: Start accepts. Automaton has 36409 states and 280196 transitions. Word has length 8 [2021-08-06 20:49:02,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 20:49:02,925 INFO L470 AbstractCegarLoop]: Abstraction has 36409 states and 280196 transitions. [2021-08-06 20:49:02,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:02,925 INFO L276 IsEmpty]: Start isEmpty. Operand 36409 states and 280196 transitions. [2021-08-06 20:49:02,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-06 20:49:02,927 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 20:49:02,927 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 20:49:02,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 20:49:02,927 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 20:49:02,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 20:49:02,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1411352313, now seen corresponding path program 1 times [2021-08-06 20:49:02,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 20:49:02,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979041183] [2021-08-06 20:49:02,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:49:02,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 20:49:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:49:03,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 20:49:03,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 20:49:03,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979041183] [2021-08-06 20:49:03,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979041183] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 20:49:03,039 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 20:49:03,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-06 20:49:03,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953018742] [2021-08-06 20:49:03,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 20:49:03,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 20:49:03,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 20:49:03,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-06 20:49:03,041 INFO L87 Difference]: Start difference. First operand 36409 states and 280196 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:04,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 20:49:04,850 INFO L93 Difference]: Finished difference Result 67508 states and 519506 transitions. [2021-08-06 20:49:04,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-06 20:49:04,873 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-06 20:49:04,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 20:49:06,114 INFO L225 Difference]: With dead ends: 67508 [2021-08-06 20:49:06,114 INFO L226 Difference]: Without dead ends: 67508 [2021-08-06 20:49:06,115 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 29.0ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-06 20:49:06,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67508 states. [2021-08-06 20:49:09,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67508 to 66972. [2021-08-06 20:49:09,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66972 states, 66966 states have (on average 7.720335692739599) internal successors, (517000), 66971 states have internal predecessors, (517000), 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) [2021-08-06 20:49:10,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66972 states to 66972 states and 517000 transitions. [2021-08-06 20:49:10,189 INFO L78 Accepts]: Start accepts. Automaton has 66972 states and 517000 transitions. Word has length 12 [2021-08-06 20:49:10,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 20:49:10,189 INFO L470 AbstractCegarLoop]: Abstraction has 66972 states and 517000 transitions. [2021-08-06 20:49:10,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:10,189 INFO L276 IsEmpty]: Start isEmpty. Operand 66972 states and 517000 transitions. [2021-08-06 20:49:10,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-06 20:49:10,191 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 20:49:10,191 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 20:49:10,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-06 20:49:10,191 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 20:49:10,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 20:49:10,195 INFO L82 PathProgramCache]: Analyzing trace with hash 2041431963, now seen corresponding path program 2 times [2021-08-06 20:49:10,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 20:49:10,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095308229] [2021-08-06 20:49:10,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:49:10,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 20:49:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:49:10,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 20:49:10,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 20:49:10,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095308229] [2021-08-06 20:49:10,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095308229] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 20:49:10,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 20:49:10,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-06 20:49:10,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413554884] [2021-08-06 20:49:10,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-06 20:49:10,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 20:49:10,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-06 20:49:10,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 20:49:10,259 INFO L87 Difference]: Start difference. First operand 66972 states and 517000 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:11,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 20:49:11,406 INFO L93 Difference]: Finished difference Result 62582 states and 383137 transitions. [2021-08-06 20:49:11,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-06 20:49:11,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-06 20:49:11,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 20:49:11,968 INFO L225 Difference]: With dead ends: 62582 [2021-08-06 20:49:11,968 INFO L226 Difference]: Without dead ends: 33597 [2021-08-06 20:49:11,968 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 [2021-08-06 20:49:12,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33597 states. [2021-08-06 20:49:12,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33597 to 31911. [2021-08-06 20:49:12,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31911 states, 31905 states have (on average 6.195486600846262) internal successors, (197667), 31910 states have internal predecessors, (197667), 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) [2021-08-06 20:49:13,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31911 states to 31911 states and 197667 transitions. [2021-08-06 20:49:13,393 INFO L78 Accepts]: Start accepts. Automaton has 31911 states and 197667 transitions. Word has length 12 [2021-08-06 20:49:13,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 20:49:13,409 INFO L470 AbstractCegarLoop]: Abstraction has 31911 states and 197667 transitions. [2021-08-06 20:49:13,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:13,409 INFO L276 IsEmpty]: Start isEmpty. Operand 31911 states and 197667 transitions. [2021-08-06 20:49:13,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-06 20:49:13,440 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 20:49:13,440 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 20:49:13,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-06 20:49:13,440 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 20:49:13,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 20:49:13,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1206306502, now seen corresponding path program 1 times [2021-08-06 20:49:13,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 20:49:13,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953617886] [2021-08-06 20:49:13,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:49:13,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 20:49:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:49:13,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 20:49:13,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 20:49:13,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953617886] [2021-08-06 20:49:13,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953617886] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 20:49:13,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 20:49:13,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 20:49:13,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117549259] [2021-08-06 20:49:13,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 20:49:13,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 20:49:13,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 20:49:13,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-06 20:49:13,608 INFO L87 Difference]: Start difference. First operand 31911 states and 197667 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:14,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 20:49:14,670 INFO L93 Difference]: Finished difference Result 55482 states and 348741 transitions. [2021-08-06 20:49:14,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-06 20:49:14,671 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-08-06 20:49:14,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 20:49:15,297 INFO L225 Difference]: With dead ends: 55482 [2021-08-06 20:49:15,297 INFO L226 Difference]: Without dead ends: 52884 [2021-08-06 20:49:15,298 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 24.7ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-08-06 20:49:15,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52884 states. [2021-08-06 20:49:16,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52884 to 38311. [2021-08-06 20:49:16,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38311 states, 38305 states have (on average 6.2482443545229085) internal successors, (239339), 38310 states have internal predecessors, (239339), 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) [2021-08-06 20:49:17,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38311 states to 38311 states and 239339 transitions. [2021-08-06 20:49:17,405 INFO L78 Accepts]: Start accepts. Automaton has 38311 states and 239339 transitions. Word has length 15 [2021-08-06 20:49:17,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 20:49:17,406 INFO L470 AbstractCegarLoop]: Abstraction has 38311 states and 239339 transitions. [2021-08-06 20:49:17,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:17,406 INFO L276 IsEmpty]: Start isEmpty. Operand 38311 states and 239339 transitions. [2021-08-06 20:49:17,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-06 20:49:17,483 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 20:49:17,483 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 20:49:17,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-06 20:49:17,484 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 20:49:17,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 20:49:17,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1484918125, now seen corresponding path program 1 times [2021-08-06 20:49:17,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 20:49:17,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838853625] [2021-08-06 20:49:17,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:49:17,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 20:49:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:49:17,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 20:49:17,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 20:49:17,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838853625] [2021-08-06 20:49:17,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838853625] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 20:49:17,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 20:49:17,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 20:49:17,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898834597] [2021-08-06 20:49:17,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 20:49:17,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 20:49:17,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 20:49:17,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-06 20:49:17,604 INFO L87 Difference]: Start difference. First operand 38311 states and 239339 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:18,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 20:49:18,755 INFO L93 Difference]: Finished difference Result 65916 states and 416021 transitions. [2021-08-06 20:49:18,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 20:49:18,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-06 20:49:18,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 20:49:19,430 INFO L225 Difference]: With dead ends: 65916 [2021-08-06 20:49:19,431 INFO L226 Difference]: Without dead ends: 59922 [2021-08-06 20:49:19,431 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 30.8ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-08-06 20:49:19,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59922 states. [2021-08-06 20:49:21,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59922 to 41015. [2021-08-06 20:49:21,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41015 states, 41009 states have (on average 6.279475237143066) internal successors, (257515), 41014 states have internal predecessors, (257515), 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) [2021-08-06 20:49:21,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41015 states to 41015 states and 257515 transitions. [2021-08-06 20:49:21,877 INFO L78 Accepts]: Start accepts. Automaton has 41015 states and 257515 transitions. Word has length 18 [2021-08-06 20:49:21,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 20:49:21,877 INFO L470 AbstractCegarLoop]: Abstraction has 41015 states and 257515 transitions. [2021-08-06 20:49:21,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:21,878 INFO L276 IsEmpty]: Start isEmpty. Operand 41015 states and 257515 transitions. [2021-08-06 20:49:21,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-06 20:49:21,928 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 20:49:21,928 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 20:49:21,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-06 20:49:21,928 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 20:49:21,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 20:49:21,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1890251318, now seen corresponding path program 1 times [2021-08-06 20:49:21,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 20:49:21,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911077632] [2021-08-06 20:49:21,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:49:21,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 20:49:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:49:22,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 20:49:22,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 20:49:22,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911077632] [2021-08-06 20:49:22,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911077632] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 20:49:22,039 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 20:49:22,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 20:49:22,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423719446] [2021-08-06 20:49:22,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-06 20:49:22,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 20:49:22,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-06 20:49:22,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-08-06 20:49:22,040 INFO L87 Difference]: Start difference. First operand 41015 states and 257515 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:23,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 20:49:23,765 INFO L93 Difference]: Finished difference Result 68096 states and 430899 transitions. [2021-08-06 20:49:23,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 20:49:23,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-08-06 20:49:23,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 20:49:24,144 INFO L225 Difference]: With dead ends: 68096 [2021-08-06 20:49:24,144 INFO L226 Difference]: Without dead ends: 57801 [2021-08-06 20:49:24,144 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 47.4ms TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-08-06 20:49:24,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57801 states. [2021-08-06 20:49:25,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57801 to 39121. [2021-08-06 20:49:25,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39121 states, 39115 states have (on average 6.259695768886616) internal successors, (244848), 39120 states have internal predecessors, (244848), 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) [2021-08-06 20:49:26,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39121 states to 39121 states and 244848 transitions. [2021-08-06 20:49:26,498 INFO L78 Accepts]: Start accepts. Automaton has 39121 states and 244848 transitions. Word has length 21 [2021-08-06 20:49:26,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 20:49:26,499 INFO L470 AbstractCegarLoop]: Abstraction has 39121 states and 244848 transitions. [2021-08-06 20:49:26,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:26,499 INFO L276 IsEmpty]: Start isEmpty. Operand 39121 states and 244848 transitions. [2021-08-06 20:49:26,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-06 20:49:26,567 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 20:49:26,567 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 20:49:26,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-06 20:49:26,568 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 20:49:26,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 20:49:26,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1869546943, now seen corresponding path program 1 times [2021-08-06 20:49:26,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 20:49:26,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636159119] [2021-08-06 20:49:26,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:49:26,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 20:49:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:49:26,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 20:49:26,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 20:49:26,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636159119] [2021-08-06 20:49:26,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636159119] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 20:49:26,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 20:49:26,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-06 20:49:26,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548580436] [2021-08-06 20:49:26,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-06 20:49:26,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 20:49:26,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-06 20:49:26,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-08-06 20:49:26,670 INFO L87 Difference]: Start difference. First operand 39121 states and 244848 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:27,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 20:49:27,698 INFO L93 Difference]: Finished difference Result 61148 states and 386045 transitions. [2021-08-06 20:49:27,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 20:49:27,699 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-08-06 20:49:27,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 20:49:28,212 INFO L225 Difference]: With dead ends: 61148 [2021-08-06 20:49:28,224 INFO L226 Difference]: Without dead ends: 46282 [2021-08-06 20:49:28,225 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 34.3ms TimeCoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-08-06 20:49:28,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46282 states. [2021-08-06 20:49:29,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46282 to 32533. [2021-08-06 20:49:29,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32533 states, 32527 states have (on average 6.1838780090386445) internal successors, (201143), 32532 states have internal predecessors, (201143), 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) [2021-08-06 20:49:29,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32533 states to 32533 states and 201143 transitions. [2021-08-06 20:49:29,733 INFO L78 Accepts]: Start accepts. Automaton has 32533 states and 201143 transitions. Word has length 24 [2021-08-06 20:49:29,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 20:49:29,745 INFO L470 AbstractCegarLoop]: Abstraction has 32533 states and 201143 transitions. [2021-08-06 20:49:29,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:29,746 INFO L276 IsEmpty]: Start isEmpty. Operand 32533 states and 201143 transitions. [2021-08-06 20:49:29,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-06 20:49:29,856 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 20:49:29,860 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 20:49:29,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-06 20:49:29,861 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 20:49:29,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 20:49:29,861 INFO L82 PathProgramCache]: Analyzing trace with hash 855829142, now seen corresponding path program 1 times [2021-08-06 20:49:29,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 20:49:29,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875259184] [2021-08-06 20:49:29,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:49:29,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 20:49:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:49:30,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 20:49:30,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 20:49:30,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875259184] [2021-08-06 20:49:30,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875259184] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 20:49:30,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 20:49:30,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-06 20:49:30,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506397376] [2021-08-06 20:49:30,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-06 20:49:30,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 20:49:30,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-06 20:49:30,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-08-06 20:49:30,128 INFO L87 Difference]: Start difference. First operand 32533 states and 201143 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:31,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 20:49:31,153 INFO L93 Difference]: Finished difference Result 45614 states and 285162 transitions. [2021-08-06 20:49:31,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 20:49:31,154 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-08-06 20:49:31,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 20:49:31,297 INFO L225 Difference]: With dead ends: 45614 [2021-08-06 20:49:31,297 INFO L226 Difference]: Without dead ends: 28558 [2021-08-06 20:49:31,298 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 75.5ms TimeCoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-08-06 20:49:31,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28558 states. [2021-08-06 20:49:31,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28558 to 22031. [2021-08-06 20:49:32,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22031 states, 22025 states have (on average 6.035595913734393) internal successors, (132934), 22030 states have internal predecessors, (132934), 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) [2021-08-06 20:49:32,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22031 states to 22031 states and 132934 transitions. [2021-08-06 20:49:32,123 INFO L78 Accepts]: Start accepts. Automaton has 22031 states and 132934 transitions. Word has length 27 [2021-08-06 20:49:32,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 20:49:32,125 INFO L470 AbstractCegarLoop]: Abstraction has 22031 states and 132934 transitions. [2021-08-06 20:49:32,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:32,125 INFO L276 IsEmpty]: Start isEmpty. Operand 22031 states and 132934 transitions. [2021-08-06 20:49:32,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-06 20:49:32,163 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 20:49:32,163 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 20:49:32,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-06 20:49:32,164 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] === [2021-08-06 20:49:32,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 20:49:32,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1763133723, now seen corresponding path program 1 times [2021-08-06 20:49:32,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 20:49:32,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100612790] [2021-08-06 20:49:32,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:49:32,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 20:49:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:49:32,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 20:49:32,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 20:49:32,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100612790] [2021-08-06 20:49:32,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100612790] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 20:49:32,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 20:49:32,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-06 20:49:32,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459452785] [2021-08-06 20:49:32,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-06 20:49:32,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 20:49:32,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-06 20:49:32,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=67, Unknown=0, NotChecked=0, Total=132 [2021-08-06 20:49:32,343 INFO L87 Difference]: Start difference. First operand 22031 states and 132934 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:32,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 20:49:32,863 INFO L93 Difference]: Finished difference Result 14747 states and 94104 transitions. [2021-08-06 20:49:32,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 20:49:32,864 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-08-06 20:49:32,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 20:49:32,865 INFO L225 Difference]: With dead ends: 14747 [2021-08-06 20:49:32,865 INFO L226 Difference]: Without dead ends: 0 [2021-08-06 20:49:32,865 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 49.7ms TimeCoverageRelationStatistics Valid=65, Invalid=67, Unknown=0, NotChecked=0, Total=132 [2021-08-06 20:49:32,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-06 20:49:32,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-06 20:49:32,866 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) [2021-08-06 20:49:32,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-06 20:49:32,866 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2021-08-06 20:49:32,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 20:49:32,866 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-06 20:49:32,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:49:32,866 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-06 20:49:32,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 20:49:32,866 INFO L764 garLoopResultBuilder]: Registering result SAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-06 20:49:32,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-06 20:49:32,867 INFO L308 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was SAFE (2/2) [2021-08-06 20:49:32,867 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 20:49:32,867 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 20:49:32,869 INFO L202 PluginConnector]: Adding new model bluetooth-correct07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 08:49:32 BasicIcfg [2021-08-06 20:49:32,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 20:49:32,869 INFO L168 Benchmark]: Toolchain (without parser) took 45013.63 ms. Allocated memory was 180.4 MB in the beginning and 7.9 GB in the end (delta: 7.7 GB). Free memory was 160.4 MB in the beginning and 6.3 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. [2021-08-06 20:49:32,869 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.43 ms. Allocated memory is still 180.4 MB. Free memory is still 161.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 20:49:32,869 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.30 ms. Allocated memory is still 180.4 MB. Free memory was 160.3 MB in the beginning and 158.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-06 20:49:32,870 INFO L168 Benchmark]: Boogie Preprocessor took 12.36 ms. Allocated memory is still 180.4 MB. Free memory was 158.4 MB in the beginning and 157.5 MB in the end (delta: 896.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-06 20:49:32,870 INFO L168 Benchmark]: RCFGBuilder took 237.08 ms. Allocated memory is still 180.4 MB. Free memory was 157.4 MB in the beginning and 142.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-08-06 20:49:32,870 INFO L168 Benchmark]: TraceAbstraction took 44734.23 ms. Allocated memory was 180.4 MB in the beginning and 7.9 GB in the end (delta: 7.7 GB). Free memory was 141.7 MB in the beginning and 6.3 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. [2021-08-06 20:49:32,870 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 0.43 ms. Allocated memory is still 180.4 MB. Free memory is still 161.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.30 ms. Allocated memory is still 180.4 MB. Free memory was 160.3 MB in the beginning and 158.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.36 ms. Allocated memory is still 180.4 MB. Free memory was 158.4 MB in the beginning and 157.5 MB in the end (delta: 896.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 237.08 ms. Allocated memory is still 180.4 MB. Free memory was 157.4 MB in the beginning and 142.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 44734.23 ms. Allocated memory was 180.4 MB in the beginning and 7.9 GB in the end (delta: 7.7 GB). Free memory was 141.7 MB in the beginning and 6.3 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.5 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: 107475, positive: 89730, positive conditional: 89730, positive unconditional: 0, negative: 17745, negative conditional: 17745, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 101137, positive: 89730, positive conditional: 0, positive unconditional: 89730, negative: 11407, negative conditional: 0, negative unconditional: 11407, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 433, positive: 371, positive conditional: 0, positive unconditional: 371, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 433, positive: 322, positive conditional: 0, positive unconditional: 322, negative: 111, negative conditional: 0, negative unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 111, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 303, positive: 164, positive conditional: 0, positive unconditional: 164, negative: 139, negative conditional: 0, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 101137, positive: 89359, positive conditional: 0, positive unconditional: 89359, negative: 11345, negative conditional: 0, negative unconditional: 11345, unknown: 433, unknown conditional: 0, unknown unconditional: 433] , Statistics on independence cache: Total cache size (in pairs): 433, Positive cache size: 371, Positive conditional cache size: 0, Positive unconditional cache size: 371, Negative cache size: 62, Negative conditional cache size: 0, Negative unconditional cache size: 62, Independence queries for same thread: 6338 - 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 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1376564, positive: 1090105, positive conditional: 1090105, positive unconditional: 0, negative: 286459, negative conditional: 286459, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1282660, positive: 1090105, positive conditional: 0, positive unconditional: 1090105, negative: 192555, negative conditional: 0, negative unconditional: 192555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 698, positive: 586, positive conditional: 0, positive unconditional: 586, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 698, positive: 509, positive conditional: 0, positive unconditional: 509, negative: 189, negative conditional: 0, negative unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 189, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 301, positive: 172, positive conditional: 0, positive unconditional: 172, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1282660, positive: 1089519, positive conditional: 0, positive unconditional: 1089519, negative: 192443, negative conditional: 0, negative unconditional: 192443, unknown: 698, unknown conditional: 0, unknown unconditional: 698] , Statistics on independence cache: Total cache size (in pairs): 698, Positive cache size: 586, Positive conditional cache size: 0, Positive unconditional cache size: 586, Negative cache size: 112, Negative conditional cache size: 0, Negative unconditional cache size: 112, Independence queries for same thread: 93904 - 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 12 procedures, 65 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 1576.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 64.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1501.4ms, PartialOrderReductionTime: 1491.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10931occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadWithAssertThread1of1ForFork1 with 1 thread instances CFG has 12 procedures, 65 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 43085.6ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 647.6ms, AutomataDifference: 16151.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6426.2ms, PartialOrderReductionTime: 6425.1ms, HoareTripleCheckerStatistics: 560 SDtfs, 740 SDslu, 961 SDs, 0 SdLazy, 1245 SolverSat, 496 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 966.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 298.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=66972occurred in iteration=2, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 18170.8ms AutomataMinimizationTime, 9 MinimizatonAttempts, 74658 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.6ms SsaConstructionTime, 120.3ms SatisfiabilityAnalysisTime, 1011.0ms InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 724 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2021-08-06 20:49:32,893 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...