/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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/JoinTheForkingThread.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 10:19:42,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 10:19:42,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 10:19:42,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-19 10:19:42,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 10:19:42,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 10:19:42,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 10:19:43,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 10:19:43,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 10:19:43,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 10:19:43,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 10:19:43,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 10:19:43,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 10:19:43,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 10:19:43,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 10:19:43,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 10:19:43,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 10:19:43,014 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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-02-19 10:19:43,027 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 10:19:43,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 10:19:43,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 10:19:43,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 10:19:43,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 10:19:43,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 10:19:43,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 10:19:43,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 10:19:43,028 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 10:19:43,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 10:19:43,029 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 10:19:43,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 10:19:43,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 10:19:43,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 10:19:43,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 10:19:43,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 10:19:43,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 10:19:43,029 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 10:19:43,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 10:19:43,029 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 10:19:43,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 10:19:43,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 10:19:43,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 10:19:43,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 10:19:43,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 10:19:43,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 10:19:43,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 10:19:43,030 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 10:19:43,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 10:19:43,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 10:19:43,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 10:19:43,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 10:19:43,031 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 10:19:43,031 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 10:19:43,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 10:19:43,031 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 10:19:43,031 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 10:19:43,031 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-02-19 10:19:43,031 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 10:19:43,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 10:19:43,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 10:19:43,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 10:19:43,192 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 10:19:43,193 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 10:19:43,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/JoinTheForkingThread.bpl [2022-02-19 10:19:43,194 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/JoinTheForkingThread.bpl' [2022-02-19 10:19:43,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 10:19:43,208 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 10:19:43,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 10:19:43,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 10:19:43,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 10:19:43,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:43" (1/1) ... [2022-02-19 10:19:43,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:43" (1/1) ... [2022-02-19 10:19:43,225 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 10:19:43,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 10:19:43,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 10:19:43,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 10:19:43,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 10:19:43,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:43" (1/1) ... [2022-02-19 10:19:43,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:43" (1/1) ... [2022-02-19 10:19:43,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:43" (1/1) ... [2022-02-19 10:19:43,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:43" (1/1) ... [2022-02-19 10:19:43,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:43" (1/1) ... [2022-02-19 10:19:43,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:43" (1/1) ... [2022-02-19 10:19:43,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:43" (1/1) ... [2022-02-19 10:19:43,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 10:19:43,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 10:19:43,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 10:19:43,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 10:19:43,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:43" (1/1) ... [2022-02-19 10:19:43,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 10:19:43,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:19:43,266 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) [2022-02-19 10:19:43,279 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 [2022-02-19 10:19:43,302 INFO L124 BoogieDeclarations]: Specification and implementation of procedure bar given in one single declaration [2022-02-19 10:19:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2022-02-19 10:19:43,302 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2022-02-19 10:19:43,302 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2022-02-19 10:19:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-02-19 10:19:43,302 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-02-19 10:19:43,303 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 10:19:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 10:19:43,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 10:19:43,303 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 10:19:43,335 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 10:19:43,336 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 10:19:43,384 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 10:19:43,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 10:19:43,389 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 10:19:43,390 INFO L202 PluginConnector]: Adding new model JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:19:43 BoogieIcfgContainer [2022-02-19 10:19:43,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 10:19:43,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 10:19:43,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 10:19:43,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 10:19:43,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:43" (1/2) ... [2022-02-19 10:19:43,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f9ea30 and model type JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:19:43, skipping insertion in model container [2022-02-19 10:19:43,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:19:43" (2/2) ... [2022-02-19 10:19:43,396 INFO L111 eAbstractionObserver]: Analyzing ICFG JoinTheForkingThread.bpl [2022-02-19 10:19:43,399 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 10:19:43,399 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 10:19:43,399 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-19 10:19:43,399 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 10:19:43,412 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:43,413 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:43,414 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:43,415 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:43,417 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_localVar not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:43,417 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_nondet not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:43,418 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:43,432 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:43,447 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_localVar not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:43,448 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_nondet not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:43,448 WARN L322 ript$VariableManager]: TermVariabe barThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:43,453 INFO L148 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-02-19 10:19:43,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 10:19:43,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:19:43,526 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) [2022-02-19 10:19:43,563 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 [2022-02-19 10:19:43,587 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 10:19:43,592 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, mLazyFiniteAutomaton=true, 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, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-02-19 10:19:43,592 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-02-19 10:19:43,647 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 13 transitions and produced 14 states. [2022-02-19 10:19:43,648 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [barErr0ASSERT_VIOLATIONASSERT, fooErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-02-19 10:19:43,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:19:43,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1225187831, now seen corresponding path program 1 times [2022-02-19 10:19:43,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:19:43,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2930914] [2022-02-19 10:19:43,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:19:43,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:19:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:19:43,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:19:43,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:19:43,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2930914] [2022-02-19 10:19:43,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2930914] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 10:19:43,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 10:19:43,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 10:19:43,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187845191] [2022-02-19 10:19:43,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 10:19:43,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 10:19:43,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:19:43,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 10:19:43,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 10:19:43,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:19:43,823 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:19:43,824 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) [2022-02-19 10:19:43,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:19:43,840 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 13 transitions and produced 14 states. [2022-02-19 10:19:43,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 10:19:43,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-19 10:19:43,841 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting barErr0ASSERT_VIOLATIONASSERT === [barErr0ASSERT_VIOLATIONASSERT, fooErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-02-19 10:19:43,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:19:43,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1225187932, now seen corresponding path program 1 times [2022-02-19 10:19:43,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:19:43,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402405436] [2022-02-19 10:19:43,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:19:43,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:19:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-19 10:19:43,864 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-19 10:19:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-19 10:19:43,881 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-19 10:19:43,881 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-19 10:19:43,883 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location barErr0ASSERT_VIOLATIONASSERT (5 of 6 remaining) [2022-02-19 10:19:43,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location barErr0ASSERT_VIOLATIONASSERT (4 of 6 remaining) [2022-02-19 10:19:43,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fooErr1INUSE_VIOLATION (3 of 6 remaining) [2022-02-19 10:19:43,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 6 remaining) [2022-02-19 10:19:43,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 6 remaining) [2022-02-19 10:19:43,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fooThread1of1ForFork1Err0INUSE_VIOLATION (0 of 6 remaining) [2022-02-19 10:19:43,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-19 10:19:43,923 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-19 10:19:43,932 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 10:19:43,932 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 10:19:43,940 INFO L202 PluginConnector]: Adding new model JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 10:19:43 BasicIcfg [2022-02-19 10:19:43,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 10:19:43,941 INFO L158 Benchmark]: Toolchain (without parser) took 732.69ms. Allocated memory is still 185.6MB. Free memory was 148.5MB in the beginning and 161.5MB in the end (delta: -13.1MB). Peak memory consumption was 7.6MB. Max. memory is 8.0GB. [2022-02-19 10:19:43,941 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 149.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 10:19:43,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.44ms. Allocated memory is still 185.6MB. Free memory was 148.4MB in the beginning and 146.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-19 10:19:43,941 INFO L158 Benchmark]: Boogie Preprocessor took 9.24ms. Allocated memory is still 185.6MB. Free memory was 146.8MB in the beginning and 145.9MB in the end (delta: 867.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 10:19:43,943 INFO L158 Benchmark]: RCFGBuilder took 150.74ms. Allocated memory is still 185.6MB. Free memory was 145.9MB in the beginning and 137.9MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-19 10:19:43,943 INFO L158 Benchmark]: TraceAbstraction took 548.95ms. Allocated memory is still 185.6MB. Free memory was 137.4MB in the beginning and 161.5MB in the end (delta: -24.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 10:19:43,945 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 0.10ms. Allocated memory is still 185.6MB. Free memory is still 149.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.44ms. Allocated memory is still 185.6MB. Free memory was 148.4MB in the beginning and 146.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.24ms. Allocated memory is still 185.6MB. Free memory was 146.8MB in the beginning and 145.9MB in the end (delta: 867.9kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 150.74ms. Allocated memory is still 185.6MB. Free memory was 145.9MB in the beginning and 137.9MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 548.95ms. Allocated memory is still 185.6MB. Free memory was 137.4MB in the beginning and 161.5MB in the end (delta: -24.1MB). 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: 0.0s, 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! [2022-02-19 10:19:43,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-02-19 10:19:44,174 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...