/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-serverassert01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 19:02:51,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 19:02:51,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 19:02:51,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-21 19:02:51,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-21 19:02:51,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-21 19:02:51,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-21 19:02:51,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-21 19:02:51,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-21 19:02:51,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-21 19:02:51,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-21 19:02:51,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-21 19:02:51,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-21 19:02:51,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-21 19:02:51,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-21 19:02:51,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-21 19:02:51,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-21 19:02:51,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-21 19:02:51,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-21 19:02:51,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-21 19:02:51,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-21 19:02:51,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-21 19:02:51,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-21 19:02:51,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-21 19:02:51,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-21 19:02:51,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 19:02:51,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 19:02:51,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 19:02:51,680 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 19:02:51,717 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 19:02:51,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 19:02:51,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 19:02:51,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 19:02:51,721 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 19:02:51,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 19:02:51,721 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 19:02:51,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 19:02:51,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 19:02:51,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 19:02:51,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 19:02:51,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 19:02:51,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 19:02:51,722 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 19:02:51,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 19:02:51,723 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 19:02:51,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 19:02:51,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 19:02:51,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 19:02:51,723 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 19:02:51,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 19:02:51,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:02:51,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 19:02:51,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 19:02:51,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 19:02:51,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 19:02:51,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 19:02:51,725 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 19:02:51,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 19:02:51,725 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 19:02:51,725 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 19:02:52,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 19:02:52,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 19:02:52,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 19:02:52,078 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-21 19:02:52,079 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-21 19:02:52,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert01.bpl [2021-08-21 19:02:52,080 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert01.bpl' [2021-08-21 19:02:52,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 19:02:52,104 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-21 19:02:52,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 19:02:52,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 19:02:52,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 19:02:52,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:52" (1/1) ... [2021-08-21 19:02:52,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:52" (1/1) ... [2021-08-21 19:02:52,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 19:02:52,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 19:02:52,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 19:02:52,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 19:02:52,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:52" (1/1) ... [2021-08-21 19:02:52,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:52" (1/1) ... [2021-08-21 19:02:52,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:52" (1/1) ... [2021-08-21 19:02:52,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:52" (1/1) ... [2021-08-21 19:02:52,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:52" (1/1) ... [2021-08-21 19:02:52,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:52" (1/1) ... [2021-08-21 19:02:52,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:52" (1/1) ... [2021-08-21 19:02:52,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 19:02:52,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 19:02:52,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 19:02:52,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 19:02:52,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:52" (1/1) ... [2021-08-21 19:02:52,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:02:52,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 19:02:52,198 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 19:02:52,201 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 19:02:52,231 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-21 19:02:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-21 19:02:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-21 19:02:52,231 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-21 19:02:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-21 19:02:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-21 19:02:52,231 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-21 19:02:52,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 19:02:52,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 19:02:52,232 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 19:02:52,447 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 19:02:52,447 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-21 19:02:52,448 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-08-21 19:02:52,450 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:02:52 BoogieIcfgContainer [2021-08-21 19:02:52,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 19:02:52,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 19:02:52,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 19:02:52,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 19:02:52,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:52" (1/2) ... [2021-08-21 19:02:52,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebe2e7b and model type bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:02:52, skipping insertion in model container [2021-08-21 19:02:52,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:02:52" (2/2) ... [2021-08-21 19:02:52,456 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert01.bpl [2021-08-21 19:02:52,472 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 19:02:52,473 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 19:02:52,473 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 19:02:52,473 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 19:02:52,526 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 19:02:52,579 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 19:02:52,587 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 19:02:52,587 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-21 19:02:52,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 36 states have (on average 2.111111111111111) internal successors, (76), 48 states have internal predecessors, (76), 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 19:02:52,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-21 19:02:52,746 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:52,747 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:52,747 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-08-21 19:02:52,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:52,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1557001093, now seen corresponding path program 1 times [2021-08-21 19:02:52,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:52,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247233807] [2021-08-21 19:02:52,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:52,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:52,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:52,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:52,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247233807] [2021-08-21 19:02:52,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247233807] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:52,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:52,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-21 19:02:52,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100813441] [2021-08-21 19:02:52,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-21 19:02:52,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:52,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-21 19:02:52,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-21 19:02:52,971 INFO L87 Difference]: Start difference. First operand has 49 states, 36 states have (on average 2.111111111111111) internal successors, (76), 48 states have internal predecessors, (76), 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 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 19:02:53,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:53,039 INFO L93 Difference]: Finished difference Result 86 states and 131 transitions. [2021-08-21 19:02:53,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 19:02:53,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 19:02:53,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:53,049 INFO L225 Difference]: With dead ends: 86 [2021-08-21 19:02:53,050 INFO L226 Difference]: Without dead ends: 60 [2021-08-21 19:02:53,051 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 39.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-21 19:02:53,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-08-21 19:02:53,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2021-08-21 19:02:53,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 54 states have (on average 1.8333333333333333) internal successors, (99), 55 states have internal predecessors, (99), 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 19:02:53,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 99 transitions. [2021-08-21 19:02:53,091 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 99 transitions. Word has length 10 [2021-08-21 19:02:53,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:53,092 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 99 transitions. [2021-08-21 19:02:53,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 19:02:53,092 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 99 transitions. [2021-08-21 19:02:53,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-21 19:02:53,094 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:53,094 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:53,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 19:02:53,095 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-08-21 19:02:53,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:53,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1629439153, now seen corresponding path program 1 times [2021-08-21 19:02:53,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:53,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408618660] [2021-08-21 19:02:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:53,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:53,130 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 19:02:53,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:53,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408618660] [2021-08-21 19:02:53,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408618660] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:53,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:53,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 19:02:53,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227630805] [2021-08-21 19:02:53,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 19:02:53,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:53,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 19:02:53,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:02:53,137 INFO L87 Difference]: Start difference. First operand 56 states and 99 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:53,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:53,143 INFO L93 Difference]: Finished difference Result 56 states and 81 transitions. [2021-08-21 19:02:53,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 19:02:53,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-21 19:02:53,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:53,145 INFO L225 Difference]: With dead ends: 56 [2021-08-21 19:02:53,145 INFO L226 Difference]: Without dead ends: 42 [2021-08-21 19:02:53,146 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:02:53,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-08-21 19:02:53,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-08-21 19:02:53,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.5) internal successors, (60), 41 states have internal predecessors, (60), 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 19:02:53,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2021-08-21 19:02:53,150 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 60 transitions. Word has length 12 [2021-08-21 19:02:53,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:53,151 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 60 transitions. [2021-08-21 19:02:53,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:53,151 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 60 transitions. [2021-08-21 19:02:53,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-21 19:02:53,152 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:53,152 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:53,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 19:02:53,152 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-08-21 19:02:53,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:53,153 INFO L82 PathProgramCache]: Analyzing trace with hash 794267447, now seen corresponding path program 1 times [2021-08-21 19:02:53,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:53,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324241824] [2021-08-21 19:02:53,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:53,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:53,231 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 19:02:53,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:53,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324241824] [2021-08-21 19:02:53,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324241824] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:53,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:53,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 19:02:53,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044475615] [2021-08-21 19:02:53,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 19:02:53,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:53,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 19:02:53,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-21 19:02:53,233 INFO L87 Difference]: Start difference. First operand 42 states and 60 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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 19:02:53,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:53,268 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2021-08-21 19:02:53,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 19:02:53,269 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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 19:02:53,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:53,269 INFO L225 Difference]: With dead ends: 28 [2021-08-21 19:02:53,269 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 19:02:53,269 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 30.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-21 19:02:53,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 19:02:53,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 19:02:53,270 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 19:02:53,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 19:02:53,270 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-08-21 19:02:53,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:53,270 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 19:02:53,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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 19:02:53,271 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 19:02:53,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 19:02:53,273 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ServerThreadErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:02:53,305 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 19:02:53,305 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 19:02:53,305 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ServerThreadErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:02:53,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 19:02:53,314 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 19:02:53,314 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 19:02:53,315 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:02:53 BasicIcfg [2021-08-21 19:02:53,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 19:02:53,317 INFO L168 Benchmark]: Toolchain (without parser) took 1211.80 ms. Allocated memory is still 184.5 MB. Free memory was 165.0 MB in the beginning and 167.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 34.0 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:53,317 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.64 ms. Allocated memory is still 184.5 MB. Free memory is still 166.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 19:02:53,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.31 ms. Allocated memory is still 184.5 MB. Free memory was 165.0 MB in the beginning and 163.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:53,318 INFO L168 Benchmark]: Boogie Preprocessor took 18.12 ms. Allocated memory is still 184.5 MB. Free memory was 163.2 MB in the beginning and 162.3 MB in the end (delta: 906.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:53,319 INFO L168 Benchmark]: RCFGBuilder took 287.85 ms. Allocated memory is still 184.5 MB. Free memory was 162.2 MB in the beginning and 149.3 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:53,319 INFO L168 Benchmark]: TraceAbstraction took 864.47 ms. Allocated memory is still 184.5 MB. Free memory was 148.8 MB in the beginning and 167.3 MB in the end (delta: -18.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:53,323 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 0.64 ms. Allocated memory is still 184.5 MB. Free memory is still 166.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 36.31 ms. Allocated memory is still 184.5 MB. Free memory was 165.0 MB in the beginning and 163.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.12 ms. Allocated memory is still 184.5 MB. Free memory was 163.2 MB in the beginning and 162.3 MB in the end (delta: 906.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 287.85 ms. Allocated memory is still 184.5 MB. Free memory was 162.2 MB in the beginning and 149.3 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 864.47 ms. Allocated memory is still 184.5 MB. Free memory was 148.8 MB in the beginning and 167.3 MB in the end (delta: -18.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 82, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 69, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 37, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 37, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 69, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 37, unknown conditional: 0, unknown unconditional: 37] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Independence queries for same thread: 13 - 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: 70]: 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 5 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 731.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 9.7ms, AutomataDifference: 140.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 151.6ms, PartialOrderReductionTime: 134.0ms, HoareTripleCheckerStatistics: 44 SDtfs, 38 SDslu, 53 SDs, 0 SdLazy, 46 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 59.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 71.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=1, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 34.5ms AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.0ms SsaConstructionTime, 27.6ms SatisfiabilityAnalysisTime, 197.3ms InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 19:02:53,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...