/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-NewStatesSleepPersistent-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert07.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-22 21:38:29,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-22 21:38:29,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-22 21:38:29,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-22 21:38:29,789 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-NewStatesSleepPersistent-NoLbe-Lockstep.epf [2021-08-22 21:38:29,824 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-22 21:38:29,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-22 21:38:29,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-22 21:38:29,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-22 21:38:29,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-22 21:38:29,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-22 21:38:29,828 INFO L138 SettingsManager]: * Use SBE=true [2021-08-22 21:38:29,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-22 21:38:29,828 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-22 21:38:29,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-22 21:38:29,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-22 21:38:29,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-22 21:38:29,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-22 21:38:29,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-22 21:38:29,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-22 21:38:29,830 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-22 21:38:29,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-22 21:38:29,831 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-22 21:38:29,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-22 21:38:29,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-22 21:38:29,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-22 21:38:29,831 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-22 21:38:29,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-22 21:38:29,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 21:38:29,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-22 21:38:29,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-22 21:38:29,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-22 21:38:29,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-22 21:38:29,832 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-08-22 21:38:29,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-22 21:38:29,833 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-22 21:38:29,833 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-22 21:38:29,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-22 21:38:29,833 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-08-22 21:38:29,834 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-08-22 21:38:29,834 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-22 21:38:30,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-22 21:38:30,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-22 21:38:30,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-22 21:38:30,186 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-22 21:38:30,188 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-22 21:38:30,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert07.bpl [2021-08-22 21:38:30,189 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert07.bpl' [2021-08-22 21:38:30,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-22 21:38:30,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-22 21:38:30,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-22 21:38:30,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-22 21:38:30,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-22 21:38:30,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 09:38:30" (1/1) ... [2021-08-22 21:38:30,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 09:38:30" (1/1) ... [2021-08-22 21:38:30,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-22 21:38:30,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-22 21:38:30,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-22 21:38:30,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-22 21:38:30,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 09:38:30" (1/1) ... [2021-08-22 21:38:30,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 09:38:30" (1/1) ... [2021-08-22 21:38:30,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 09:38:30" (1/1) ... [2021-08-22 21:38:30,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 09:38:30" (1/1) ... [2021-08-22 21:38:30,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 09:38:30" (1/1) ... [2021-08-22 21:38:30,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 09:38:30" (1/1) ... [2021-08-22 21:38:30,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 09:38:30" (1/1) ... [2021-08-22 21:38:30,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-22 21:38:30,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-22 21:38:30,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-22 21:38:30,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-22 21:38:30,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 09:38:30" (1/1) ... [2021-08-22 21:38:30,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 21:38:30,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 21:38:30,306 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) [2021-08-22 21:38:30,333 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 [2021-08-22 21:38:30,356 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-22 21:38:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-22 21:38:30,356 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-22 21:38:30,356 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-22 21:38:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-22 21:38:30,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-22 21:38:30,357 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-22 21:38:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-22 21:38:30,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-22 21:38:30,358 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-22 21:38:30,544 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-22 21:38:30,544 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-22 21:38:30,545 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-08-22 21:38:30,546 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:38:30 BoogieIcfgContainer [2021-08-22 21:38:30,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-22 21:38:30,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-22 21:38:30,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-22 21:38:30,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-22 21:38:30,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 09:38:30" (1/2) ... [2021-08-22 21:38:30,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f992a0 and model type bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:38:30, skipping insertion in model container [2021-08-22 21:38:30,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:38:30" (2/2) ... [2021-08-22 21:38:30,573 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert07.bpl [2021-08-22 21:38:30,577 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-22 21:38:30,577 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-22 21:38:30,577 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-22 21:38:30,577 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-22 21:38:30,645 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-22 21:38:30,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-22 21:38:30,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 21:38:30,713 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) [2021-08-22 21:38:30,729 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 [2021-08-22 21:38:30,743 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ServerThreadThread1of1ForFork0 ======== [2021-08-22 21:38:30,751 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 [2021-08-22 21:38:30,752 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-22 21:38:31,270 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-08-22 21:38:31,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 21:38:31,278 INFO L82 PathProgramCache]: Analyzing trace with hash 877887850, now seen corresponding path program 1 times [2021-08-22 21:38:31,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 21:38:31,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351334009] [2021-08-22 21:38:31,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:31,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 21:38:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:31,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 21:38:31,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 21:38:31,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351334009] [2021-08-22 21:38:31,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351334009] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 21:38:31,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 21:38:31,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-22 21:38:31,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153098360] [2021-08-22 21:38:31,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-22 21:38:31,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 21:38:31,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-22 21:38:31,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-22 21:38:31,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:31,448 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 21:38:31,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-22 21:38:31,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:31,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:31,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-22 21:38:31,517 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-08-22 21:38:31,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 21:38:31,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1759905751, now seen corresponding path program 1 times [2021-08-22 21:38:31,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 21:38:31,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911571194] [2021-08-22 21:38:31,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:31,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 21:38:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:31,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 21:38:31,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 21:38:31,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911571194] [2021-08-22 21:38:31,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911571194] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 21:38:31,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 21:38:31,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-22 21:38:31,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176040783] [2021-08-22 21:38:31,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-22 21:38:31,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 21:38:31,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-22 21:38:31,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-22 21:38:31,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:31,551 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 21:38:31,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-22 21:38:31,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:31,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:31,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:31,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:31,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-22 21:38:31,990 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-08-22 21:38:31,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 21:38:31,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1578879565, now seen corresponding path program 1 times [2021-08-22 21:38:31,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 21:38:31,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842784708] [2021-08-22 21:38:31,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:31,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 21:38:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:32,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 21:38:32,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 21:38:32,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842784708] [2021-08-22 21:38:32,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842784708] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 21:38:32,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 21:38:32,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-22 21:38:32,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966940404] [2021-08-22 21:38:32,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-22 21:38:32,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 21:38:32,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-22 21:38:32,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-22 21:38:32,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:32,062 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 21:38:32,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-08-22 21:38:32,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:32,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:32,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:32,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:32,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:32,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:32,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-22 21:38:32,127 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-08-22 21:38:32,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 21:38:32,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1596110605, now seen corresponding path program 2 times [2021-08-22 21:38:32,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 21:38:32,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897512410] [2021-08-22 21:38:32,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:32,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 21:38:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 21:38:32,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 21:38:32,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897512410] [2021-08-22 21:38:32,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897512410] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 21:38:32,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79955926] [2021-08-22 21:38:32,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-22 21:38:32,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 21:38:32,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 21:38:32,236 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) [2021-08-22 21:38:32,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-22 21:38:32,277 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-22 21:38:32,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 21:38:32,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-22 21:38:32,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 21:38:32,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 21:38:32,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79955926] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 21:38:32,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 21:38:32,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2021-08-22 21:38:32,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983622430] [2021-08-22 21:38:32,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-22 21:38:32,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 21:38:32,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-22 21:38:32,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-08-22 21:38:32,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:32,424 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 21:38:32,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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) [2021-08-22 21:38:32,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:32,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:32,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:32,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:32,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:32,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-08-22 21:38:32,824 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,SelfDestructingSolverStorable3 [2021-08-22 21:38:32,825 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-08-22 21:38:32,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 21:38:32,825 INFO L82 PathProgramCache]: Analyzing trace with hash 37150237, now seen corresponding path program 1 times [2021-08-22 21:38:32,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 21:38:32,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034833383] [2021-08-22 21:38:32,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:32,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 21:38:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:32,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-22 21:38:32,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 21:38:32,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034833383] [2021-08-22 21:38:32,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034833383] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 21:38:32,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589934087] [2021-08-22 21:38:32,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:32,938 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 21:38:32,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 21:38:32,944 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) [2021-08-22 21:38:32,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-22 21:38:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:32,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-22 21:38:32,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 21:38:33,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-22 21:38:33,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589934087] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 21:38:33,223 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 21:38:33,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-22 21:38:33,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350779435] [2021-08-22 21:38:33,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-22 21:38:33,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 21:38:33,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-22 21:38:33,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-22 21:38:33,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:33,225 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 21:38:33,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-22 21:38:33,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:33,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:33,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:33,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:33,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:33,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:33,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:33,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:33,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:33,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 21:38:33,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-22 21:38:33,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 21:38:33,513 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-08-22 21:38:33,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 21:38:33,514 INFO L82 PathProgramCache]: Analyzing trace with hash 578120122, now seen corresponding path program 2 times [2021-08-22 21:38:33,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 21:38:33,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126495828] [2021-08-22 21:38:33,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:33,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 21:38:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:33,592 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 21:38:33,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 21:38:33,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126495828] [2021-08-22 21:38:33,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126495828] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 21:38:33,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710433700] [2021-08-22 21:38:33,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-22 21:38:33,593 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 21:38:33,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 21:38:33,594 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) [2021-08-22 21:38:33,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-22 21:38:33,682 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-22 21:38:33,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 21:38:33,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-22 21:38:33,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 21:38:33,901 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 21:38:33,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710433700] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 21:38:33,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 21:38:33,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-08-22 21:38:33,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844876490] [2021-08-22 21:38:33,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-22 21:38:33,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 21:38:33,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-22 21:38:33,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-08-22 21:38:33,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:33,904 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 21:38:33,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 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) [2021-08-22 21:38:33,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:33,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:33,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:33,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:33,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-22 21:38:33,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 21:38:34,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 21:38:34,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-22 21:38:34,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 21:38:34,597 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-08-22 21:38:34,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 21:38:34,597 INFO L82 PathProgramCache]: Analyzing trace with hash 2027307935, now seen corresponding path program 1 times [2021-08-22 21:38:34,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 21:38:34,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915349815] [2021-08-22 21:38:34,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:34,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 21:38:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:34,720 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-22 21:38:34,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 21:38:34,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915349815] [2021-08-22 21:38:34,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915349815] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 21:38:34,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294251711] [2021-08-22 21:38:34,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:34,722 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 21:38:34,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 21:38:34,723 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-22 21:38:34,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-22 21:38:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:34,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 33 conjunts are in the unsatisfiable core [2021-08-22 21:38:34,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 21:38:35,069 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-22 21:38:35,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294251711] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 21:38:35,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 21:38:35,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-08-22 21:38:35,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590784433] [2021-08-22 21:38:35,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-22 21:38:35,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 21:38:35,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-22 21:38:35,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-22 21:38:35,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:35,071 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 21:38:35,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2021-08-22 21:38:35,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:35,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:35,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:35,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:35,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-22 21:38:35,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 21:38:35,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:35,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:35,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:35,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:35,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:35,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 21:38:35,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 21:38:35,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-22 21:38:35,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-22 21:38:35,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 21:38:35,815 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-08-22 21:38:35,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 21:38:35,815 INFO L82 PathProgramCache]: Analyzing trace with hash 459524655, now seen corresponding path program 1 times [2021-08-22 21:38:35,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 21:38:35,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404408759] [2021-08-22 21:38:35,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:35,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 21:38:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:35,931 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-22 21:38:35,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 21:38:35,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404408759] [2021-08-22 21:38:35,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404408759] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 21:38:35,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049741281] [2021-08-22 21:38:35,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:35,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 21:38:35,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 21:38:35,937 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-22 21:38:35,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-22 21:38:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:36,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-22 21:38:36,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 21:38:36,300 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-22 21:38:36,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049741281] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 21:38:36,301 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 21:38:36,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-08-22 21:38:36,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340142799] [2021-08-22 21:38:36,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-22 21:38:36,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 21:38:36,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-22 21:38:36,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-08-22 21:38:36,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:36,303 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 21:38:36,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-22 21:38:36,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:36,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:36,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:36,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:36,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-22 21:38:36,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 21:38:36,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-22 21:38:36,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:37,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:37,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:37,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:37,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:37,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 21:38:37,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 21:38:37,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-22 21:38:37,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:37,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-22 21:38:37,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 21:38:37,261 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-08-22 21:38:37,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 21:38:37,262 INFO L82 PathProgramCache]: Analyzing trace with hash 342632287, now seen corresponding path program 1 times [2021-08-22 21:38:37,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 21:38:37,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323034718] [2021-08-22 21:38:37,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:37,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 21:38:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:37,443 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-22 21:38:37,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 21:38:37,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323034718] [2021-08-22 21:38:37,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323034718] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 21:38:37,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954136277] [2021-08-22 21:38:37,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:37,444 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 21:38:37,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 21:38:37,445 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-22 21:38:37,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-22 21:38:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:37,616 WARN L261 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 57 conjunts are in the unsatisfiable core [2021-08-22 21:38:37,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 21:38:37,951 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-22 21:38:37,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954136277] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 21:38:37,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 21:38:37,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-08-22 21:38:37,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595654541] [2021-08-22 21:38:37,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-22 21:38:37,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 21:38:37,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-22 21:38:37,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-08-22 21:38:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:37,953 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 21:38:37,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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) [2021-08-22 21:38:37,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:37,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:37,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:37,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:37,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-22 21:38:37,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 21:38:37,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-22 21:38:37,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:37,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:40,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:40,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:40,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:40,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:40,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 21:38:40,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 21:38:40,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-22 21:38:40,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:40,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 21:38:40,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-22 21:38:40,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 21:38:40,937 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT] === [2021-08-22 21:38:40,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 21:38:40,938 INFO L82 PathProgramCache]: Analyzing trace with hash 380085737, now seen corresponding path program 1 times [2021-08-22 21:38:40,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 21:38:40,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791889617] [2021-08-22 21:38:40,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:40,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 21:38:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:41,210 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 53 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-22 21:38:41,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 21:38:41,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791889617] [2021-08-22 21:38:41,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791889617] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 21:38:41,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055214316] [2021-08-22 21:38:41,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 21:38:41,211 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 21:38:41,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 21:38:41,211 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-22 21:38:41,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-22 21:38:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 21:38:41,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 55 conjunts are in the unsatisfiable core [2021-08-22 21:38:41,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 21:38:41,789 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 53 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-22 21:38:41,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055214316] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 21:38:41,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 21:38:41,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-08-22 21:38:41,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944608655] [2021-08-22 21:38:41,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-22 21:38:41,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 21:38:41,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-22 21:38:41,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-08-22 21:38:41,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:38:41,792 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 21:38:41,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 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) [2021-08-22 21:38:41,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:41,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:38:41,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:38:41,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:41,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-22 21:38:41,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 21:38:41,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-22 21:38:41,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:38:41,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 21:38:41,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 21:39:49,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:39:49,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 21:39:49,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 21:39:49,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:39:49,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 21:39:49,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 21:39:49,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-22 21:39:49,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:39:49,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 21:39:49,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 21:39:49,764 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ServerThreadErr0ASSERT_VIOLATIONASSERT [2021-08-22 21:39:49,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-22 21:39:49,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-08-22 21:39:49,985 INFO L308 ceAbstractionStarter]: Result for error location ServerThreadThread1of1ForFork0 was SAFE (1/2) [2021-08-22 21:39:49,986 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-22 21:39:49,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 21:39:49,989 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-22 21:39:49,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2021-08-22 21:39:49,992 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-22 21:39:49,992 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 [2021-08-22 21:39:49,992 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-08-22 21:39:50,086 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-22 21:39:50,086 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-22 21:39:50,086 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-22 21:39:50,086 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-22 21:39:50,086 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-22 21:39:50,086 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-22 21:39:50,086 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION [2021-08-22 21:39:50,087 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATION [2021-08-22 21:39:50,088 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (2/2) [2021-08-22 21:39:50,088 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-22 21:39:50,089 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-22 21:39:50,091 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:39:50 BasicIcfg [2021-08-22 21:39:50,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-22 21:39:50,092 INFO L168 Benchmark]: Toolchain (without parser) took 79870.68 ms. Allocated memory was 181.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 161.9 MB in the beginning and 6.5 GB in the end (delta: -6.4 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. [2021-08-22 21:39:50,092 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 181.4 MB. Free memory is still 162.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-22 21:39:50,092 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.68 ms. Allocated memory is still 181.4 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-22 21:39:50,093 INFO L168 Benchmark]: Boogie Preprocessor took 16.46 ms. Allocated memory is still 181.4 MB. Free memory was 159.9 MB in the beginning and 159.1 MB in the end (delta: 817.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-22 21:39:50,093 INFO L168 Benchmark]: RCFGBuilder took 272.67 ms. Allocated memory is still 181.4 MB. Free memory was 158.9 MB in the beginning and 145.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-22 21:39:50,093 INFO L168 Benchmark]: TraceAbstraction took 79542.84 ms. Allocated memory was 181.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 145.3 MB in the beginning and 6.5 GB in the end (delta: -6.4 GB). Peak memory consumption was 1.4 GB. Max. memory is 8.0 GB. [2021-08-22 21:39:50,094 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 181.4 MB. Free memory is still 162.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 33.68 ms. Allocated memory is still 181.4 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 16.46 ms. Allocated memory is still 181.4 MB. Free memory was 159.9 MB in the beginning and 159.1 MB in the end (delta: 817.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 272.67 ms. Allocated memory is still 181.4 MB. Free memory was 158.9 MB in the beginning and 145.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 79542.84 ms. Allocated memory was 181.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 145.3 MB in the beginning and 6.5 GB in the end (delta: -6.4 GB). Peak memory consumption was 1.4 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 20221537, positive: 19595025, positive conditional: 19593530, positive unconditional: 1495, negative: 626512, negative conditional: 626374, negative unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19806549, positive: 19595025, positive conditional: 19593530, positive unconditional: 1495, negative: 211524, negative conditional: 211386, negative unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 19806549, positive: 19595025, positive conditional: 19593530, positive unconditional: 1495, negative: 211524, negative conditional: 211386, negative unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21254137, positive: 19595025, positive conditional: 19593505, positive unconditional: 1520, negative: 1659112, negative conditional: 1447588, negative unconditional: 211524, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21254137, positive: 19595025, positive conditional: 15414762, positive unconditional: 4180263, negative: 1659112, negative conditional: 1434544, negative unconditional: 224568, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21254137, positive: 19595025, positive conditional: 15414762, positive unconditional: 4180263, negative: 1659112, negative conditional: 1434544, negative unconditional: 224568, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4407, positive: 2848, positive conditional: 1370, positive unconditional: 1478, negative: 1559, negative conditional: 1420, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4407, positive: 1657, positive conditional: 0, positive unconditional: 1657, negative: 2750, negative conditional: 0, negative unconditional: 2750, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2750, positive: 1191, positive conditional: 1079, positive unconditional: 112, negative: 1559, negative conditional: 1420, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3517, positive: 1580, positive conditional: 1335, positive unconditional: 245, negative: 1937, negative conditional: 1589, negative unconditional: 348, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21254137, positive: 19592177, positive conditional: 15413392, positive unconditional: 4178785, negative: 1657553, negative conditional: 1433124, negative unconditional: 224429, unknown: 4407, unknown conditional: 2790, unknown unconditional: 1617] , Statistics on independence cache: Total cache size (in pairs): 4407, Positive cache size: 2848, Positive conditional cache size: 1370, Positive unconditional cache size: 1478, Negative cache size: 1559, Negative conditional cache size: 1420, Negative unconditional cache size: 139, Eliminated conditions: 4191787, Maximal queried relation: 10, Independence queries for same thread: 414988 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 3201, Number of persistent set computation: 10410, Number of trivial persistent sets: 3411, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1633, positive: 1495, positive conditional: 0, positive unconditional: 1495, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 20221537, positive: 19595025, positive conditional: 19593530, positive unconditional: 1495, negative: 626512, negative conditional: 626374, negative unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19806549, positive: 19595025, positive conditional: 19593530, positive unconditional: 1495, negative: 211524, negative conditional: 211386, negative unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 19806549, positive: 19595025, positive conditional: 19593530, positive unconditional: 1495, negative: 211524, negative conditional: 211386, negative unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21254137, positive: 19595025, positive conditional: 19593505, positive unconditional: 1520, negative: 1659112, negative conditional: 1447588, negative unconditional: 211524, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21254137, positive: 19595025, positive conditional: 15414762, positive unconditional: 4180263, negative: 1659112, negative conditional: 1434544, negative unconditional: 224568, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21254137, positive: 19595025, positive conditional: 15414762, positive unconditional: 4180263, negative: 1659112, negative conditional: 1434544, negative unconditional: 224568, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4407, positive: 2848, positive conditional: 1370, positive unconditional: 1478, negative: 1559, negative conditional: 1420, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4407, positive: 1657, positive conditional: 0, positive unconditional: 1657, negative: 2750, negative conditional: 0, negative unconditional: 2750, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2750, positive: 1191, positive conditional: 1079, positive unconditional: 112, negative: 1559, negative conditional: 1420, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3517, positive: 1580, positive conditional: 1335, positive unconditional: 245, negative: 1937, negative conditional: 1589, negative unconditional: 348, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21254137, positive: 19592177, positive conditional: 15413392, positive unconditional: 4178785, negative: 1657553, negative conditional: 1433124, negative unconditional: 224429, unknown: 4407, unknown conditional: 2790, unknown unconditional: 1617] , Statistics on independence cache: Total cache size (in pairs): 4407, Positive cache size: 2848, Positive conditional cache size: 1370, Positive unconditional cache size: 1478, Negative cache size: 1559, Negative conditional cache size: 1420, Negative unconditional cache size: 139, Eliminated conditions: 4191787, Maximal queried relation: 10, Independence queries for same thread: 414988 - 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: 1358, positive: 1281, positive conditional: 230, positive unconditional: 1051, negative: 77, negative conditional: 21, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1337, positive: 1281, positive conditional: 230, positive unconditional: 1051, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1337, positive: 1281, positive conditional: 230, positive unconditional: 1051, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1337, positive: 1281, positive conditional: 0, positive unconditional: 1281, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1337, positive: 1281, positive conditional: 0, positive unconditional: 1281, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1337, positive: 1281, positive conditional: 0, positive unconditional: 1281, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1107, positive: 1051, positive conditional: 0, positive unconditional: 1051, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1107, positive: 1002, positive conditional: 0, positive unconditional: 1002, negative: 105, negative conditional: 0, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 105, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 80, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1337, positive: 230, positive conditional: 0, positive unconditional: 230, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1107, unknown conditional: 0, unknown unconditional: 1107] , Statistics on independence cache: Total cache size (in pairs): 1107, Positive cache size: 1051, Positive conditional cache size: 0, Positive unconditional cache size: 1051, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 21 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 88, Number of persistent set computation: 12, Number of trivial persistent sets: 5, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1107, positive: 1051, positive conditional: 0, positive unconditional: 1051, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1358, positive: 1281, positive conditional: 230, positive unconditional: 1051, negative: 77, negative conditional: 21, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1337, positive: 1281, positive conditional: 230, positive unconditional: 1051, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1337, positive: 1281, positive conditional: 230, positive unconditional: 1051, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1337, positive: 1281, positive conditional: 0, positive unconditional: 1281, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1337, positive: 1281, positive conditional: 0, positive unconditional: 1281, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1337, positive: 1281, positive conditional: 0, positive unconditional: 1281, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1107, positive: 1051, positive conditional: 0, positive unconditional: 1051, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1107, positive: 1002, positive conditional: 0, positive unconditional: 1002, negative: 105, negative conditional: 0, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 105, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 80, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1337, positive: 230, positive conditional: 0, positive unconditional: 230, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1107, unknown conditional: 0, unknown unconditional: 1107] , Statistics on independence cache: Total cache size (in pairs): 1107, Positive cache size: 1051, Positive conditional cache size: 0, Positive unconditional cache size: 1051, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 21 - 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: 76]: 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 11 procedures, 62 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 79291.5ms, OverallIterations: 10, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 27.5ms, PartialOrderReductionTime: 73806.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 69, 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: 53.4ms SsaConstructionTime, 197.4ms SatisfiabilityAnalysisTime, 2791.1ms InterpolantComputationTime, 594 NumberOfCodeBlocks, 594 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 577 ConstructedInterpolants, 0 QuantifiedInterpolants, 3274 SizeOfPredicates, 5 NumberOfNonLiveVariables, 561 ConjunctsInSsa, 208 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 187/307 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 11 procedures, 62 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 101.7ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 92.2ms, 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! [2021-08-22 21:39:50,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Forceful destruction successful, exit code 0 [2021-08-22 21:39:50,332 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 [2021-08-22 21:39:50,532 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...