/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/ThreadIdTest-Unsafe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-29 01:30:45,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-29 01:30:45,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-29 01:30:45,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-29 01:30:45,343 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2022-01-29 01:30:45,365 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-29 01:30:45,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-29 01:30:45,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-29 01:30:45,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-29 01:30:45,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-29 01:30:45,366 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-29 01:30:45,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-29 01:30:45,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-29 01:30:45,366 INFO L138 SettingsManager]: * Use SBE=true [2022-01-29 01:30:45,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-29 01:30:45,366 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-29 01:30:45,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-29 01:30:45,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-29 01:30:45,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-29 01:30:45,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-29 01:30:45,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-29 01:30:45,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-29 01:30:45,371 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-29 01:30:45,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-29 01:30:45,371 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-29 01:30:45,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-29 01:30:45,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-29 01:30:45,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-29 01:30:45,372 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-29 01:30:45,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-29 01:30:45,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 01:30:45,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-29 01:30:45,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-29 01:30:45,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-29 01:30:45,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-29 01:30:45,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-29 01:30:45,373 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-29 01:30:45,373 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-01-29 01:30:45,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-29 01:30:45,373 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-01-29 01:30:45,373 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-01-29 01:30:45,374 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-29 01:30:45,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-29 01:30:45,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-29 01:30:45,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-29 01:30:45,545 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-29 01:30:45,547 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-29 01:30:45,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/ThreadIdTest-Unsafe.bpl [2022-01-29 01:30:45,548 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/ThreadIdTest-Unsafe.bpl' [2022-01-29 01:30:45,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-29 01:30:45,569 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-29 01:30:45,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-29 01:30:45,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-29 01:30:45,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-29 01:30:45,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:30:45" (1/1) ... [2022-01-29 01:30:45,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:30:45" (1/1) ... [2022-01-29 01:30:45,592 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-29 01:30:45,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-29 01:30:45,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-29 01:30:45,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-29 01:30:45,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-29 01:30:45,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:30:45" (1/1) ... [2022-01-29 01:30:45,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:30:45" (1/1) ... [2022-01-29 01:30:45,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:30:45" (1/1) ... [2022-01-29 01:30:45,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:30:45" (1/1) ... [2022-01-29 01:30:45,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:30:45" (1/1) ... [2022-01-29 01:30:45,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:30:45" (1/1) ... [2022-01-29 01:30:45,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:30:45" (1/1) ... [2022-01-29 01:30:45,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-29 01:30:45,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-29 01:30:45,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-29 01:30:45,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-29 01:30:45,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:30:45" (1/1) ... [2022-01-29 01:30:45,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 01:30:45,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 01:30:45,630 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) [2022-01-29 01:30:45,635 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 [2022-01-29 01:30:45,653 INFO L130 BoogieDeclarations]: Found specification of procedure decrement [2022-01-29 01:30:45,654 INFO L138 BoogieDeclarations]: Found implementation of procedure decrement [2022-01-29 01:30:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2022-01-29 01:30:45,654 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2022-01-29 01:30:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-29 01:30:45,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-29 01:30:45,655 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-29 01:30:45,685 INFO L234 CfgBuilder]: Building ICFG [2022-01-29 01:30:45,686 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-29 01:30:45,735 INFO L275 CfgBuilder]: Performing block encoding [2022-01-29 01:30:45,739 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-29 01:30:45,739 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-29 01:30:45,740 INFO L202 PluginConnector]: Adding new model ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 01:30:45 BoogieIcfgContainer [2022-01-29 01:30:45,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-29 01:30:45,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-29 01:30:45,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-29 01:30:45,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-29 01:30:45,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:30:45" (1/2) ... [2022-01-29 01:30:45,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778ee3b7 and model type ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 01:30:45, skipping insertion in model container [2022-01-29 01:30:45,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 01:30:45" (2/2) ... [2022-01-29 01:30:45,746 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest-Unsafe.bpl [2022-01-29 01:30:45,749 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-29 01:30:45,750 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-29 01:30:45,750 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-29 01:30:45,750 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-29 01:30:45,764 WARN L322 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:30:45,764 WARN L322 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:30:45,764 WARN L322 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:30:45,764 WARN L322 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:30:45,765 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:30:45,765 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:30:45,765 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:30:45,765 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:30:45,767 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:30:45,769 WARN L322 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:30:45,771 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-29 01:30:45,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 01:30:45,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 01:30:45,805 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) [2022-01-29 01:30:45,807 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 [2022-01-29 01:30:45,841 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-01-29 01:30:45,862 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, mAutomataTypeConcurrency=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 [2022-01-29 01:30:45,862 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-29 01:30:45,959 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 01:30:45,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 01:30:45,963 INFO L85 PathProgramCache]: Analyzing trace with hash 699791812, now seen corresponding path program 1 times [2022-01-29 01:30:45,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 01:30:45,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142381744] [2022-01-29 01:30:45,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 01:30:45,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 01:30:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 01:30:46,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 01:30:46,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 01:30:46,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142381744] [2022-01-29 01:30:46,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142381744] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 01:30:46,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 01:30:46,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 01:30:46,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925810484] [2022-01-29 01:30:46,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 01:30:46,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 01:30:46,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 01:30:46,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 01:30:46,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 01:30:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 01:30:46,105 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 01:30:46,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-01-29 01:30:46,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 01:30:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 01:30:46,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-29 01:30:46,123 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 01:30:46,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 01:30:46,123 INFO L85 PathProgramCache]: Analyzing trace with hash 699791843, now seen corresponding path program 1 times [2022-01-29 01:30:46,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 01:30:46,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529646774] [2022-01-29 01:30:46,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 01:30:46,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 01:30:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-29 01:30:46,133 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-29 01:30:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-29 01:30:46,146 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-29 01:30:46,146 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-29 01:30:46,147 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-01-29 01:30:46,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-29 01:30:46,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-29 01:30:46,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-29 01:30:46,160 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-29 01:30:46,189 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-29 01:30:46,190 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-29 01:30:46,197 INFO L202 PluginConnector]: Adding new model ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 01:30:46 BasicIcfg [2022-01-29 01:30:46,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-29 01:30:46,198 INFO L158 Benchmark]: Toolchain (without parser) took 628.92ms. Allocated memory was 174.1MB in the beginning and 251.7MB in the end (delta: 77.6MB). Free memory was 133.5MB in the beginning and 225.2MB in the end (delta: -91.7MB). Peak memory consumption was 3.9MB. Max. memory is 8.0GB. [2022-01-29 01:30:46,198 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 174.1MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-29 01:30:46,198 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.81ms. Allocated memory is still 174.1MB. Free memory was 133.5MB in the beginning and 131.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-29 01:30:46,199 INFO L158 Benchmark]: Boogie Preprocessor took 10.85ms. Allocated memory is still 174.1MB. Free memory was 131.9MB in the beginning and 131.1MB in the end (delta: 812.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-29 01:30:46,199 INFO L158 Benchmark]: RCFGBuilder took 134.87ms. Allocated memory is still 174.1MB. Free memory was 131.0MB in the beginning and 123.3MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-29 01:30:46,200 INFO L158 Benchmark]: TraceAbstraction took 455.67ms. Allocated memory was 174.1MB in the beginning and 251.7MB in the end (delta: 77.6MB). Free memory was 122.8MB in the beginning and 225.2MB in the end (delta: -102.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-29 01:30:46,201 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 0.09ms. Allocated memory is still 174.1MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.81ms. Allocated memory is still 174.1MB. Free memory was 133.5MB in the beginning and 131.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.85ms. Allocated memory is still 174.1MB. Free memory was 131.9MB in the beginning and 131.1MB in the end (delta: 812.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 134.87ms. Allocated memory is still 174.1MB. Free memory was 131.0MB in the beginning and 123.3MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 455.67ms. Allocated memory was 174.1MB in the beginning and 251.7MB in the end (delta: 77.6MB). Free memory was 122.8MB in the beginning and 225.2MB in the end (delta: -102.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 61, positive: 55, positive conditional: 13, positive unconditional: 42, negative: 6, negative conditional: 3, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 59, positive: 55, positive conditional: 13, positive unconditional: 42, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 59, positive: 55, positive conditional: 13, positive unconditional: 42, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 59, positive: 55, positive conditional: 8, positive unconditional: 47, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 59, positive: 55, positive conditional: 3, positive unconditional: 52, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 59, positive: 55, positive conditional: 3, positive unconditional: 52, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 51, positive: 47, positive conditional: 3, positive unconditional: 44, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 51, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 59, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 51, unknown conditional: 3, unknown unconditional: 48] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 47, Positive conditional cache size: 3, Positive unconditional cache size: 44, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Eliminated conditions: 5, Maximal queried relation: 0, Independence queries for same thread: 2 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 10, Number of trivial persistent sets: 10, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 61, positive: 55, positive conditional: 13, positive unconditional: 42, negative: 6, negative conditional: 3, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 59, positive: 55, positive conditional: 13, positive unconditional: 42, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 59, positive: 55, positive conditional: 13, positive unconditional: 42, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 59, positive: 55, positive conditional: 8, positive unconditional: 47, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 59, positive: 55, positive conditional: 3, positive unconditional: 52, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 59, positive: 55, positive conditional: 3, positive unconditional: 52, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 51, positive: 47, positive conditional: 3, positive unconditional: 44, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 51, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 59, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 51, unknown conditional: 3, unknown unconditional: 48] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 47, Positive conditional cache size: 3, Positive unconditional cache size: 44, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Eliminated conditions: 5, Maximal queried relation: 0, Independence queries for same thread: 2 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 22]: assertion can be violated assertion can be violated We found a FailurePath: [L17] 0 x := 0; VAL [x=0] [L19] FORK 0 fork 1 increment(x); VAL [n=0, x=0] [L20] FORK 0 fork 2 decrement(x); VAL [n=0, n=0, x=0] [L37] 2 res := n - 1; VAL [n=0, n=0, res=-1, x=0] [L29] 1 res := n + 1; VAL [n=0, n=0, res=-1, res=1, x=0] [L21] JOIN 2 join 2 assign y; VAL [n=0, n=0, res=-1, res=1, x=0, y=-1] [L22] 0 assert y == 1; VAL [n=0, n=0, res=-1, res=1, x=0, y=-1] - UnprovableResult [Line: 19]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 22 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-29 01:30:46,234 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 [2022-01-29 01:30:46,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...