/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert03.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 05:13:00,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 05:13:00,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 05:13:00,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-25 05:13:00,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf [2021-10-25 05:13:00,535 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 05:13:00,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 05:13:00,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 05:13:00,536 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 05:13:00,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 05:13:00,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 05:13:00,537 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 05:13:00,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 05:13:00,537 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 05:13:00,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 05:13:00,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 05:13:00,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 05:13:00,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 05:13:00,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 05:13:00,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 05:13:00,538 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 05:13:00,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 05:13:00,538 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 05:13:00,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 05:13:00,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 05:13:00,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 05:13:00,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 05:13:00,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 05:13:00,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 05:13:00,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 05:13:00,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 05:13:00,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 05:13:00,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 05:13:00,540 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-25 05:13:00,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 05:13:00,540 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 05:13:00,540 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 05:13:00,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 05:13:00,540 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 05:13:00,540 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 05:13:00,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 05:13:00,540 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 [2021-10-25 05:13:00,541 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 05:13:00,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 05:13:00,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 05:13:00,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 05:13:00,771 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-25 05:13:00,772 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-25 05:13:00,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert03.bpl [2021-10-25 05:13:00,773 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert03.bpl' [2021-10-25 05:13:00,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 05:13:00,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-25 05:13:00,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 05:13:00,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 05:13:00,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 05:13:00,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 05:13:00" (1/1) ... [2021-10-25 05:13:00,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 05:13:00" (1/1) ... [2021-10-25 05:13:00,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 05:13:00,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 05:13:00,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 05:13:00,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 05:13:00,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 05:13:00" (1/1) ... [2021-10-25 05:13:00,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 05:13:00" (1/1) ... [2021-10-25 05:13:00,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 05:13:00" (1/1) ... [2021-10-25 05:13:00,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 05:13:00" (1/1) ... [2021-10-25 05:13:00,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 05:13:00" (1/1) ... [2021-10-25 05:13:00,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 05:13:00" (1/1) ... [2021-10-25 05:13:00,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 05:13:00" (1/1) ... [2021-10-25 05:13:00,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 05:13:00,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 05:13:00,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 05:13:00,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 05:13:00,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 05:13:00" (1/1) ... [2021-10-25 05:13:00,844 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 05:13:00,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 05:13:00,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-25 05:13:00,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-25 05:13:00,906 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-10-25 05:13:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-10-25 05:13:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-10-25 05:13:00,906 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-10-25 05:13:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-10-25 05:13:00,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-10-25 05:13:00,907 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-25 05:13:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 05:13:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 05:13:00,909 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-25 05:13:01,060 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 05:13:01,060 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-25 05:13:01,061 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-10-25 05:13:01,063 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 05:13:01 BoogieIcfgContainer [2021-10-25 05:13:01,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 05:13:01,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 05:13:01,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 05:13:01,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 05:13:01,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 05:13:00" (1/2) ... [2021-10-25 05:13:01,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4172d7 and model type bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 05:13:01, skipping insertion in model container [2021-10-25 05:13:01,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 05:13:01" (2/2) ... [2021-10-25 05:13:01,071 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert03.bpl [2021-10-25 05:13:01,074 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 05:13:01,074 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 05:13:01,074 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 05:13:01,075 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 05:13:01,101 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-25 05:13:01,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 05:13:01,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 05:13:01,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-25 05:13:01,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-25 05:13:01,241 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ServerThreadThread1of1ForFork0 ======== [2021-10-25 05:13:01,249 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-25 05:13:01,250 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-25 05:13:01,543 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 05:13:01,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 05:13:01,550 INFO L82 PathProgramCache]: Analyzing trace with hash 618014916, now seen corresponding path program 1 times [2021-10-25 05:13:01,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 05:13:01,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336798130] [2021-10-25 05:13:01,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:13:01,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 05:13:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:13:01,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 05:13:01,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 05:13:01,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336798130] [2021-10-25 05:13:01,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336798130] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 05:13:01,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 05:13:01,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-25 05:13:01,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088008247] [2021-10-25 05:13:01,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-25 05:13:01,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 05:13:01,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-25 05:13:01,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-25 05:13:01,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:01,754 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 05:13:01,755 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) [2021-10-25 05:13:01,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:01,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:01,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-25 05:13:01,861 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 05:13:01,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 05:13:01,861 INFO L82 PathProgramCache]: Analyzing trace with hash 147429016, now seen corresponding path program 1 times [2021-10-25 05:13:01,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 05:13:01,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003487254] [2021-10-25 05:13:01,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:13:01,862 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 05:13:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:13:01,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 05:13:01,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 05:13:01,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003487254] [2021-10-25 05:13:01,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003487254] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 05:13:01,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 05:13:01,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-25 05:13:01,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071297412] [2021-10-25 05:13:01,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-25 05:13:01,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 05:13:01,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-25 05:13:01,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-25 05:13:01,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:01,890 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 05:13:01,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 05:13:01,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:01,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:02,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:02,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 05:13:02,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-25 05:13:02,043 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 05:13:02,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 05:13:02,043 INFO L82 PathProgramCache]: Analyzing trace with hash -105141306, now seen corresponding path program 1 times [2021-10-25 05:13:02,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 05:13:02,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940925212] [2021-10-25 05:13:02,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:13:02,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 05:13:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:13:02,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 05:13:02,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 05:13:02,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940925212] [2021-10-25 05:13:02,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940925212] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 05:13:02,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 05:13:02,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-25 05:13:02,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005965870] [2021-10-25 05:13:02,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-25 05:13:02,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 05:13:02,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-25 05:13:02,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-25 05:13:02,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:02,103 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 05:13:02,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 05:13:02,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:02,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 05:13:02,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:02,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:02,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 05:13:02,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:02,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-25 05:13:02,145 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 05:13:02,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 05:13:02,147 INFO L82 PathProgramCache]: Analyzing trace with hash -456905436, now seen corresponding path program 2 times [2021-10-25 05:13:02,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 05:13:02,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275847415] [2021-10-25 05:13:02,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:13:02,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 05:13:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:13:02,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 05:13:02,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 05:13:02,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275847415] [2021-10-25 05:13:02,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275847415] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 05:13:02,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 05:13:02,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-25 05:13:02,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228120638] [2021-10-25 05:13:02,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-25 05:13:02,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 05:13:02,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-25 05:13:02,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-25 05:13:02,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:02,241 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 05:13:02,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 05:13:02,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:02,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 05:13:02,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:02,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:02,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:02,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 05:13:02,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:02,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 05:13:02,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-25 05:13:02,392 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 05:13:02,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 05:13:02,393 INFO L82 PathProgramCache]: Analyzing trace with hash -529978216, now seen corresponding path program 1 times [2021-10-25 05:13:02,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 05:13:02,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145770962] [2021-10-25 05:13:02,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:13:02,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 05:13:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:13:02,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 05:13:02,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 05:13:02,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145770962] [2021-10-25 05:13:02,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145770962] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 05:13:02,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 05:13:02,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-25 05:13:02,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709241269] [2021-10-25 05:13:02,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-25 05:13:02,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 05:13:02,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-25 05:13:02,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-25 05:13:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:02,497 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 05:13:02,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 05:13:02,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:02,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 05:13:02,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:02,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 05:13:02,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:02,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 05:13:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 05:13:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 05:13:02,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-25 05:13:02,668 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 05:13:02,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 05:13:02,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1267962243, now seen corresponding path program 2 times [2021-10-25 05:13:02,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 05:13:02,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573997708] [2021-10-25 05:13:02,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:13:02,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 05:13:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:13:02,771 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-25 05:13:02,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 05:13:02,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573997708] [2021-10-25 05:13:02,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573997708] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 05:13:02,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311265562] [2021-10-25 05:13:02,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 05:13:02,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 05:13:02,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 05:13:02,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 05:13:02,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-25 05:13:02,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 05:13:02,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 05:13:02,829 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-25 05:13:02,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 05:13:03,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-25 05:13:03,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311265562] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 05:13:03,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 05:13:03,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 12 [2021-10-25 05:13:03,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392479451] [2021-10-25 05:13:03,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-25 05:13:03,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 05:13:03,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-25 05:13:03,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-10-25 05:13:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:03,102 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 05:13:03,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 05:13:03,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:03,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 05:13:03,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:03,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 05:13:03,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 05:13:03,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:03,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:03,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 05:13:03,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:03,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 05:13:03,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 05:13:03,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 05:13:03,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-25 05:13:03,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-25 05:13:03,556 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 05:13:03,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 05:13:03,556 INFO L82 PathProgramCache]: Analyzing trace with hash -2079387413, now seen corresponding path program 1 times [2021-10-25 05:13:03,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 05:13:03,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017714918] [2021-10-25 05:13:03,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:13:03,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 05:13:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:13:03,790 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-25 05:13:03,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 05:13:03,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017714918] [2021-10-25 05:13:03,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017714918] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 05:13:03,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877609937] [2021-10-25 05:13:03,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:13:03,791 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 05:13:03,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 05:13:03,792 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 05:13:03,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-25 05:13:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:13:03,880 WARN L261 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 57 conjunts are in the unsatisfiable core [2021-10-25 05:13:03,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 05:13:04,245 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-25 05:13:04,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877609937] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 05:13:04,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 05:13:04,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-25 05:13:04,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583623633] [2021-10-25 05:13:04,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-25 05:13:04,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 05:13:04,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-25 05:13:04,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-25 05:13:04,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:04,247 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 05:13:04,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 05:13:04,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:04,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 05:13:04,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:04,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 05:13:04,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 05:13:04,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-25 05:13:04,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:04,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:04,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 05:13:04,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:04,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 05:13:04,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 05:13:04,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 05:13:04,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 05:13:04,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-25 05:13:04,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 05:13:04,592 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-10-25 05:13:04,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 05:13:04,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1254657585, now seen corresponding path program 2 times [2021-10-25 05:13:04,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 05:13:04,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865456385] [2021-10-25 05:13:04,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:13:04,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 05:13:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:13:04,864 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 24 proven. 13 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-25 05:13:04,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 05:13:04,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865456385] [2021-10-25 05:13:04,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865456385] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 05:13:04,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724989192] [2021-10-25 05:13:04,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 05:13:04,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 05:13:04,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 05:13:04,867 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 05:13:04,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-25 05:13:04,990 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 05:13:04,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 05:13:04,992 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 85 conjunts are in the unsatisfiable core [2021-10-25 05:13:04,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 05:13:05,416 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-25 05:13:05,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724989192] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 05:13:05,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 05:13:05,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 14 [2021-10-25 05:13:05,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139472150] [2021-10-25 05:13:05,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-25 05:13:05,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 05:13:05,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-25 05:13:05,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-10-25 05:13:05,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:05,420 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 05:13:05,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.933333333333333) internal successors, (59), 14 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 05:13:05,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:05,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 05:13:05,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:05,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 05:13:05,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 05:13:05,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-25 05:13:05,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 05:13:05,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:13:05,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:05,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 05:13:05,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 05:13:05,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 05:13:05,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 05:13:05,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 05:13:05,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 05:13:05,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 05:13:05,723 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ServerThreadErr0ASSERT_VIOLATIONASSERT [2021-10-25 05:13:05,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-25 05:13:05,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 05:13:05,945 INFO L308 ceAbstractionStarter]: Result for error location ServerThreadThread1of1ForFork0 was SAFE (1/2) [2021-10-25 05:13:05,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 05:13:05,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 05:13:05,949 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-25 05:13:05,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2021-10-25 05:13:05,953 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 05:13:05,953 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-25 05:13:05,953 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-25 05:13:06,015 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-25 05:13:06,015 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-25 05:13:06,015 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-25 05:13:06,015 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-25 05:13:06,016 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE (2/2) [2021-10-25 05:13:06,017 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-25 05:13:06,017 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-25 05:13:06,019 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 05:13:06 BasicIcfg [2021-10-25 05:13:06,019 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-25 05:13:06,020 INFO L168 Benchmark]: Toolchain (without parser) took 5228.26 ms. Allocated memory was 179.3 MB in the beginning and 264.2 MB in the end (delta: 84.9 MB). Free memory was 136.6 MB in the beginning and 88.3 MB in the end (delta: 48.3 MB). Peak memory consumption was 135.7 MB. Max. memory is 8.0 GB. [2021-10-25 05:13:06,021 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 179.3 MB. Free memory is still 137.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 05:13:06,021 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.57 ms. Allocated memory is still 179.3 MB. Free memory was 136.6 MB in the beginning and 134.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-25 05:13:06,021 INFO L168 Benchmark]: Boogie Preprocessor took 11.72 ms. Allocated memory is still 179.3 MB. Free memory was 134.7 MB in the beginning and 133.8 MB in the end (delta: 905.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-25 05:13:06,021 INFO L168 Benchmark]: RCFGBuilder took 227.90 ms. Allocated memory is still 179.3 MB. Free memory was 133.7 MB in the beginning and 121.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-25 05:13:06,022 INFO L168 Benchmark]: TraceAbstraction took 4954.84 ms. Allocated memory was 179.3 MB in the beginning and 264.2 MB in the end (delta: 84.9 MB). Free memory was 120.6 MB in the beginning and 88.3 MB in the end (delta: 32.3 MB). Peak memory consumption was 117.9 MB. Max. memory is 8.0 GB. [2021-10-25 05:13:06,023 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 0.13 ms. Allocated memory is still 179.3 MB. Free memory is still 137.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 29.57 ms. Allocated memory is still 179.3 MB. Free memory was 136.6 MB in the beginning and 134.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.72 ms. Allocated memory is still 179.3 MB. Free memory was 134.7 MB in the beginning and 133.8 MB in the end (delta: 905.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 227.90 ms. Allocated memory is still 179.3 MB. Free memory was 133.7 MB in the beginning and 121.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4954.84 ms. Allocated memory was 179.3 MB in the beginning and 264.2 MB in the end (delta: 84.9 MB). Free memory was 120.6 MB in the beginning and 88.3 MB in the end (delta: 32.3 MB). Peak memory consumption was 117.9 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: 31747, positive: 22061, positive conditional: 21682, positive unconditional: 379, negative: 9686, negative conditional: 9650, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 28810, positive: 22061, positive conditional: 0, positive unconditional: 22061, negative: 6749, negative conditional: 0, negative unconditional: 6749, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 419, positive: 378, positive conditional: 0, positive unconditional: 378, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 419, positive: 354, positive conditional: 0, positive unconditional: 354, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 297, positive: 98, positive conditional: 0, positive unconditional: 98, negative: 199, negative conditional: 0, negative unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28810, positive: 21683, positive conditional: 0, positive unconditional: 21683, negative: 6708, negative conditional: 0, negative unconditional: 6708, unknown: 419, unknown conditional: 0, unknown unconditional: 419] , Statistics on independence cache: Total cache size (in pairs): 419, Positive cache size: 378, Positive conditional cache size: 0, Positive unconditional cache size: 378, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41, Independence queries for same thread: 2937 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 389, Number of persistent set computation: 271, Number of trivial persistent sets: 232, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 31747, positive: 22061, positive conditional: 21682, positive unconditional: 379, negative: 9686, negative conditional: 9650, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 28810, positive: 22061, positive conditional: 0, positive unconditional: 22061, negative: 6749, negative conditional: 0, negative unconditional: 6749, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 419, positive: 378, positive conditional: 0, positive unconditional: 378, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 419, positive: 354, positive conditional: 0, positive unconditional: 354, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 297, positive: 98, positive conditional: 0, positive unconditional: 98, negative: 199, negative conditional: 0, negative unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28810, positive: 21683, positive conditional: 0, positive unconditional: 21683, negative: 6708, negative conditional: 0, negative unconditional: 6708, unknown: 419, unknown conditional: 0, unknown unconditional: 419] , Statistics on independence cache: Total cache size (in pairs): 419, Positive cache size: 378, Positive conditional cache size: 0, Positive unconditional cache size: 378, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41, Independence queries for same thread: 2937 - 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: 556, positive: 483, positive conditional: 152, positive unconditional: 331, negative: 73, negative conditional: 49, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 531, positive: 483, positive conditional: 0, positive unconditional: 483, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 371, positive: 345, positive conditional: 0, positive unconditional: 345, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 371, positive: 336, positive conditional: 0, positive unconditional: 336, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 51, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 531, positive: 138, positive conditional: 0, positive unconditional: 138, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 371, unknown conditional: 0, unknown unconditional: 371] , Statistics on independence cache: Total cache size (in pairs): 371, Positive cache size: 345, Positive conditional cache size: 0, Positive unconditional cache size: 345, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Independence queries for same thread: 25 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 54, Number of persistent set computation: 29, Number of trivial persistent sets: 13, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 556, positive: 483, positive conditional: 152, positive unconditional: 331, negative: 73, negative conditional: 49, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 531, positive: 483, positive conditional: 0, positive unconditional: 483, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 371, positive: 345, positive conditional: 0, positive unconditional: 345, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 371, positive: 336, positive conditional: 0, positive unconditional: 336, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 51, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 531, positive: 138, positive conditional: 0, positive unconditional: 138, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 371, unknown conditional: 0, unknown unconditional: 371] , Statistics on independence cache: Total cache size (in pairs): 371, Positive cache size: 345, Positive conditional cache size: 0, Positive unconditional cache size: 345, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Independence queries for same thread: 25 - 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: 72]: 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: ServerThreadThread1of1ForFork0 with 1 thread instances CFG has 7 procedures, 42 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 4802.1ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.8ms, PartialOrderReductionTime: 1537.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.8ms SsaConstructionTime, 152.6ms SatisfiabilityAnalysisTime, 1898.5ms InterpolantComputationTime, 302 NumberOfCodeBlocks, 302 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 1617 SizeOfPredicates, 0 NumberOfNonLiveVariables, 267 ConjunctsInSsa, 167 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 175/289 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 42 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 68.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.6ms, PartialOrderReductionTime: 60.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-25 05:13:06,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Forceful destruction successful, exit code 0 [2021-10-25 05:13:06,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-25 05:13:06,468 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...