/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-MCRwithoutDepranks.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/JoinTheForkingThread.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-29 12:56:38,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-29 12:56:38,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-29 12:56:38,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-29 12:56:38,782 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-MCRwithoutDepranks.epf [2022-01-29 12:56:38,805 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-29 12:56:38,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-29 12:56:38,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-29 12:56:38,805 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-29 12:56:38,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-29 12:56:38,806 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-29 12:56:38,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-29 12:56:38,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-29 12:56:38,807 INFO L138 SettingsManager]: * Use SBE=true [2022-01-29 12:56:38,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-29 12:56:38,807 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-29 12:56:38,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-29 12:56:38,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-29 12:56:38,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-29 12:56:38,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-29 12:56:38,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-29 12:56:38,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-29 12:56:38,808 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-29 12:56:38,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-29 12:56:38,808 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-29 12:56:38,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-29 12:56:38,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-29 12:56:38,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-29 12:56:38,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-29 12:56:38,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-29 12:56:38,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 12:56:38,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-29 12:56:38,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-29 12:56:38,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-29 12:56:38,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-29 12:56:38,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-29 12:56:38,810 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-29 12:56:38,810 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-01-29 12:56:38,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-29 12:56:38,810 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-01-29 12:56:38,810 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-29 12:56:38,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-29 12:56:39,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-29 12:56:39,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-29 12:56:39,019 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-29 12:56:39,021 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-29 12:56:39,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/JoinTheForkingThread.bpl [2022-01-29 12:56:39,022 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/JoinTheForkingThread.bpl' [2022-01-29 12:56:39,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-29 12:56:39,038 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-29 12:56:39,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-29 12:56:39,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-29 12:56:39,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-29 12:56:39,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:39" (1/1) ... [2022-01-29 12:56:39,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:39" (1/1) ... [2022-01-29 12:56:39,066 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-29 12:56:39,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-29 12:56:39,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-29 12:56:39,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-29 12:56:39,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-29 12:56:39,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:39" (1/1) ... [2022-01-29 12:56:39,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:39" (1/1) ... [2022-01-29 12:56:39,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:39" (1/1) ... [2022-01-29 12:56:39,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:39" (1/1) ... [2022-01-29 12:56:39,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:39" (1/1) ... [2022-01-29 12:56:39,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:39" (1/1) ... [2022-01-29 12:56:39,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:39" (1/1) ... [2022-01-29 12:56:39,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-29 12:56:39,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-29 12:56:39,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-29 12:56:39,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-29 12:56:39,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:39" (1/1) ... [2022-01-29 12:56:39,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 12:56:39,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 12:56:39,103 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 12:56:39,107 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 12:56:39,129 INFO L124 BoogieDeclarations]: Specification and implementation of procedure bar given in one single declaration [2022-01-29 12:56:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2022-01-29 12:56:39,129 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2022-01-29 12:56:39,130 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2022-01-29 12:56:39,130 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-01-29 12:56:39,130 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-01-29 12:56:39,130 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-29 12:56:39,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-29 12:56:39,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-29 12:56:39,130 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 12:56:39,162 INFO L234 CfgBuilder]: Building ICFG [2022-01-29 12:56:39,163 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-29 12:56:39,203 INFO L275 CfgBuilder]: Performing block encoding [2022-01-29 12:56:39,209 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-29 12:56:39,209 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-29 12:56:39,210 INFO L202 PluginConnector]: Adding new model JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 12:56:39 BoogieIcfgContainer [2022-01-29 12:56:39,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-29 12:56:39,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-29 12:56:39,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-29 12:56:39,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-29 12:56:39,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:39" (1/2) ... [2022-01-29 12:56:39,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44776623 and model type JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 12:56:39, skipping insertion in model container [2022-01-29 12:56:39,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 12:56:39" (2/2) ... [2022-01-29 12:56:39,218 INFO L111 eAbstractionObserver]: Analyzing ICFG JoinTheForkingThread.bpl [2022-01-29 12:56:39,221 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-29 12:56:39,221 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-29 12:56:39,221 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-29 12:56:39,221 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-29 12:56:39,235 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:39,235 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:39,236 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:39,236 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:39,238 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_localVar not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:39,238 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_nondet not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:39,238 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:39,240 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:39,241 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_localVar not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:39,241 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_nondet not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:39,241 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:39,246 INFO L148 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-01-29 12:56:39,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 12:56:39,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 12:56:39,284 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 12:56:39,285 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 12:56:39,306 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-29 12:56:39,318 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 12:56:39,319 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-29 12:56:39,407 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [barErr0ASSERT_VIOLATIONASSERT, fooErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-29 12:56:39,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 12:56:39,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1225187831, now seen corresponding path program 1 times [2022-01-29 12:56:39,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 12:56:39,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712749173] [2022-01-29 12:56:39,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 12:56:39,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 12:56:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 12:56:39,539 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 12:56:39,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 12:56:39,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712749173] [2022-01-29 12:56:39,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712749173] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 12:56:39,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 12:56:39,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 12:56:39,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324476971] [2022-01-29 12:56:39,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 12:56:39,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 12:56:39,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 12:56:39,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 12:56:39,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 12:56:39,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 12:56:39,564 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 12:56:39,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 12:56:39,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 12:56:39,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 12:56:39,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-29 12:56:39,588 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting barErr0ASSERT_VIOLATIONASSERT === [barErr0ASSERT_VIOLATIONASSERT, fooErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-29 12:56:39,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 12:56:39,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1225187932, now seen corresponding path program 1 times [2022-01-29 12:56:39,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 12:56:39,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874573941] [2022-01-29 12:56:39,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 12:56:39,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 12:56:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-29 12:56:39,597 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-29 12:56:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-29 12:56:39,612 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-29 12:56:39,612 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-29 12:56:39,613 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location barErr0ASSERT_VIOLATIONASSERT (5 of 6 remaining) [2022-01-29 12:56:39,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location barErr0ASSERT_VIOLATIONASSERT (4 of 6 remaining) [2022-01-29 12:56:39,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fooErr1INUSE_VIOLATION (3 of 6 remaining) [2022-01-29 12:56:39,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 6 remaining) [2022-01-29 12:56:39,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 6 remaining) [2022-01-29 12:56:39,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fooThread1of1ForFork1Err0INUSE_VIOLATION (0 of 6 remaining) [2022-01-29 12:56:39,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-29 12:56:39,623 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-29 12:56:39,627 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-29 12:56:39,627 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-29 12:56:39,635 INFO L202 PluginConnector]: Adding new model JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 12:56:39 BasicIcfg [2022-01-29 12:56:39,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-29 12:56:39,635 INFO L158 Benchmark]: Toolchain (without parser) took 596.86ms. Allocated memory is still 208.7MB. Free memory was 172.8MB in the beginning and 178.5MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-29 12:56:39,636 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 208.7MB. Free memory was 173.9MB in the beginning and 173.8MB in the end (delta: 143.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-29 12:56:39,636 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.58ms. Allocated memory is still 208.7MB. Free memory was 172.8MB in the beginning and 171.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-29 12:56:39,637 INFO L158 Benchmark]: Boogie Preprocessor took 9.75ms. Allocated memory is still 208.7MB. Free memory was 171.2MB in the beginning and 170.4MB in the end (delta: 767.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-29 12:56:39,637 INFO L158 Benchmark]: RCFGBuilder took 131.92ms. Allocated memory is still 208.7MB. Free memory was 170.3MB in the beginning and 162.3MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-29 12:56:39,637 INFO L158 Benchmark]: TraceAbstraction took 423.41ms. Allocated memory is still 208.7MB. Free memory was 161.8MB in the beginning and 178.5MB in the end (delta: -16.7MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-29 12:56:39,639 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 0.13ms. Allocated memory is still 208.7MB. Free memory was 173.9MB in the beginning and 173.8MB in the end (delta: 143.5kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.58ms. Allocated memory is still 208.7MB. Free memory was 172.8MB in the beginning and 171.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.75ms. Allocated memory is still 208.7MB. Free memory was 171.2MB in the beginning and 170.4MB in the end (delta: 767.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 131.92ms. Allocated memory is still 208.7MB. Free memory was 170.3MB in the beginning and 162.3MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 423.41ms. Allocated memory is still 208.7MB. Free memory was 161.8MB in the beginning and 178.5MB in the end (delta: -16.7MB). 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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: 45]: assertion can be violated assertion can be violated We found a FailurePath: [L17] 0 x := 0; VAL [x=0] [L18] 0 g := 0; VAL [g=0, x=0] [L20] FORK 0 fork 1 foo(x); VAL [g=0, n=0, x=0] [L29] FORK 1 fork 2 bar(n); VAL [g=0, n=0, n=0, x=0] [L40] 2 res := 23; VAL [g=0, n=0, n=0, res=23, x=0] [L30] 1 g := g + 1; VAL [g=1, n=0, n=0, res=23, x=0] [L31] 1 res := 23; VAL [g=1, n=0, n=0, res=23, res=23, x=0] [L44] JOIN 1 join nondet assign localVar; VAL [g=1, localVar=23, n=0, n=0, nondet=1, res=23, res=23, x=0] [L45] 2 assert false; VAL [g=1, localVar=23, n=0, n=0, nondet=1, res=23, res=23, x=0] - UnprovableResult [Line: 26]: 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: 23]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 20]: 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: 26]: 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 with 1 thread instances CFG has 5 procedures, 33 locations, 6 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, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 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 12:56:39,668 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 12:56:39,882 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...