/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/multiple_fork_same_id.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 13:52:50,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 13:52:50,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 13:52:50,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 13:52:50,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 13:52:50,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 13:52:50,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 13:52:50,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 13:52:51,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 13:52:51,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 13:52:51,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 13:52:51,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 13:52:51,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 13:52:51,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 13:52:51,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 13:52:51,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 13:52:51,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-09 13:52:51,028 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 [2022-02-09 13:52:51,057 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 13:52:51,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 13:52:51,058 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 13:52:51,058 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 13:52:51,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 13:52:51,059 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 13:52:51,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 13:52:51,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 13:52:51,060 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 13:52:51,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 13:52:51,061 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 13:52:51,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 13:52:51,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 13:52:51,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 13:52:51,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 13:52:51,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 13:52:51,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 13:52:51,062 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 13:52:51,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 13:52:51,062 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 13:52:51,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 13:52:51,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 13:52:51,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 13:52:51,062 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 13:52:51,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 13:52:51,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 13:52:51,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 13:52:51,064 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 13:52:51,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 13:52:51,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 13:52:51,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 13:52:51,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 13:52:51,064 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 13:52:51,065 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 13:52:51,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 13:52:51,065 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-09 13:52:51,065 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-09 13:52:51,065 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 13:52:51,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 13:52:51,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 13:52:51,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 13:52:51,316 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-09 13:52:51,319 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-09 13:52:51,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/multiple_fork_same_id.bpl [2022-02-09 13:52:51,320 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/multiple_fork_same_id.bpl' [2022-02-09 13:52:51,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 13:52:51,340 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-09 13:52:51,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 13:52:51,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 13:52:51,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 13:52:51,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:52:51" (1/1) ... [2022-02-09 13:52:51,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:52:51" (1/1) ... [2022-02-09 13:52:51,371 INFO L137 Inliner]: procedures = 2, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-09 13:52:51,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 13:52:51,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 13:52:51,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 13:52:51,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 13:52:51,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:52:51" (1/1) ... [2022-02-09 13:52:51,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:52:51" (1/1) ... [2022-02-09 13:52:51,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:52:51" (1/1) ... [2022-02-09 13:52:51,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:52:51" (1/1) ... [2022-02-09 13:52:51,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:52:51" (1/1) ... [2022-02-09 13:52:51,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:52:51" (1/1) ... [2022-02-09 13:52:51,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:52:51" (1/1) ... [2022-02-09 13:52:51,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 13:52:51,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 13:52:51,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 13:52:51,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 13:52:51,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:52:51" (1/1) ... [2022-02-09 13:52:51,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 13:52:51,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:52:51,417 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) [2022-02-09 13:52:51,422 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 [2022-02-09 13:52:51,449 INFO L124 BoogieDeclarations]: Specification and implementation of procedure increment given in one single declaration [2022-02-09 13:52:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2022-02-09 13:52:51,449 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2022-02-09 13:52:51,449 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-09 13:52:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 13:52:51,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 13:52:51,450 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 13:52:51,484 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 13:52:51,485 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 13:52:51,524 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 13:52:51,529 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 13:52:51,529 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 13:52:51,531 INFO L202 PluginConnector]: Adding new model multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 01:52:51 BoogieIcfgContainer [2022-02-09 13:52:51,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 13:52:51,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 13:52:51,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 13:52:51,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 13:52:51,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 01:52:51" (1/2) ... [2022-02-09 13:52:51,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7b0517 and model type multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 01:52:51, skipping insertion in model container [2022-02-09 13:52:51,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 01:52:51" (2/2) ... [2022-02-09 13:52:51,542 INFO L111 eAbstractionObserver]: Analyzing ICFG multiple_fork_same_id.bpl [2022-02-09 13:52:51,546 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 13:52:51,546 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 13:52:51,546 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 13:52:51,546 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 13:52:51,564 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,564 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,565 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,565 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,565 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,566 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,566 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,566 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,567 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,567 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,567 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,567 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,571 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,573 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,573 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 13:52:51,576 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-09 13:52:51,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 13:52:51,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 13:52:51,618 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) [2022-02-09 13:52:51,619 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 [2022-02-09 13:52:51,647 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-09 13:52:51,653 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 [2022-02-09 13:52:51,653 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-09 13:52:51,797 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 13:52:51,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:52:51,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2143640910, now seen corresponding path program 1 times [2022-02-09 13:52:51,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:52:51,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861461986] [2022-02-09 13:52:51,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:52:51,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:52:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 13:52:52,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 13:52:52,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 13:52:52,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861461986] [2022-02-09 13:52:52,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861461986] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 13:52:52,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 13:52:52,003 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 13:52:52,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554825400] [2022-02-09 13:52:52,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 13:52:52,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 13:52:52,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 13:52:52,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 13:52:52,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-09 13:52:52,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:52:52,059 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 13:52:52,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-02-09 13:52:52,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 13:52:52,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 13:52:52,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 13:52:52,180 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 13:52:52,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 13:52:52,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2143640941, now seen corresponding path program 1 times [2022-02-09 13:52:52,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 13:52:52,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208338624] [2022-02-09 13:52:52,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 13:52:52,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 13:52:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 13:52:52,200 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 13:52:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 13:52:52,219 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 13:52:52,219 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 13:52:52,220 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-09 13:52:52,221 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-09 13:52:52,222 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-09 13:52:52,222 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-09 13:52:52,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 13:52:52,242 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-09 13:52:52,246 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 13:52:52,246 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 13:52:52,256 INFO L202 PluginConnector]: Adding new model multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 01:52:52 BasicIcfg [2022-02-09 13:52:52,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 13:52:52,257 INFO L158 Benchmark]: Toolchain (without parser) took 917.28ms. Allocated memory was 177.2MB in the beginning and 259.0MB in the end (delta: 81.8MB). Free memory was 135.6MB in the beginning and 226.6MB in the end (delta: -91.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 13:52:52,258 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 177.2MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 13:52:52,262 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.50ms. Allocated memory is still 177.2MB. Free memory was 135.5MB in the beginning and 134.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 13:52:52,262 INFO L158 Benchmark]: Boogie Preprocessor took 12.00ms. Allocated memory is still 177.2MB. Free memory was 133.9MB in the beginning and 133.1MB in the end (delta: 789.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 13:52:52,265 INFO L158 Benchmark]: RCFGBuilder took 143.50ms. Allocated memory is still 177.2MB. Free memory was 133.1MB in the beginning and 125.4MB in the end (delta: 7.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-02-09 13:52:52,265 INFO L158 Benchmark]: TraceAbstraction took 723.90ms. Allocated memory was 177.2MB in the beginning and 259.0MB in the end (delta: 81.8MB). Free memory was 124.9MB in the beginning and 226.6MB in the end (delta: -101.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 13:52:52,268 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 0.14ms. Allocated memory is still 177.2MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.50ms. Allocated memory is still 177.2MB. Free memory was 135.5MB in the beginning and 134.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.00ms. Allocated memory is still 177.2MB. Free memory was 133.9MB in the beginning and 133.1MB in the end (delta: 789.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 143.50ms. Allocated memory is still 177.2MB. Free memory was 133.1MB in the beginning and 125.4MB in the end (delta: 7.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 723.90ms. Allocated memory was 177.2MB in the beginning and 259.0MB in the end (delta: 81.8MB). Free memory was 124.9MB in the beginning and 226.6MB in the end (delta: -101.8MB). 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: 194, positive: 170, positive conditional: 40, positive unconditional: 130, negative: 24, negative conditional: 13, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 191, positive: 170, positive conditional: 40, positive unconditional: 130, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 191, positive: 170, positive conditional: 40, positive unconditional: 130, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 196, positive: 170, positive conditional: 20, positive unconditional: 150, negative: 26, negative conditional: 5, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 196, positive: 170, positive conditional: 13, positive unconditional: 157, negative: 26, negative conditional: 2, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 196, positive: 170, positive conditional: 13, positive unconditional: 157, negative: 26, negative conditional: 2, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 143, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 13, negative conditional: 2, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 143, positive: 128, positive conditional: 0, positive unconditional: 128, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 13, negative conditional: 2, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 50, negative conditional: 7, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 196, positive: 40, positive conditional: 13, positive unconditional: 27, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 143, unknown conditional: 2, unknown unconditional: 141] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 13, Negative conditional cache size: 2, Negative unconditional cache size: 11, Eliminated conditions: 10, Maximal queried relation: 1, Independence queries for same thread: 3 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 14, Number of trivial persistent sets: 14, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 141, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 194, positive: 170, positive conditional: 40, positive unconditional: 130, negative: 24, negative conditional: 13, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 191, positive: 170, positive conditional: 40, positive unconditional: 130, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 191, positive: 170, positive conditional: 40, positive unconditional: 130, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 196, positive: 170, positive conditional: 20, positive unconditional: 150, negative: 26, negative conditional: 5, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 196, positive: 170, positive conditional: 13, positive unconditional: 157, negative: 26, negative conditional: 2, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 196, positive: 170, positive conditional: 13, positive unconditional: 157, negative: 26, negative conditional: 2, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 143, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 13, negative conditional: 2, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 143, positive: 128, positive conditional: 0, positive unconditional: 128, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 13, negative conditional: 2, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 50, negative conditional: 7, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 196, positive: 40, positive conditional: 13, positive unconditional: 27, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 143, unknown conditional: 2, unknown unconditional: 141] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 13, Negative conditional cache size: 2, Negative unconditional cache size: 11, Eliminated conditions: 10, Maximal queried relation: 1, Independence queries for same thread: 3 - 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: 28]: assertion can be violated assertion can be violated We found a FailurePath: [L19] FORK 0 fork 42 increment(7); VAL [n=7] [L20] FORK 0 fork 42 increment(23); VAL [n=7] [L21] FORK 0 fork 42 increment(39); VAL [n=39] [L34] 3 res := n + 1; VAL [n=39, res=40] [L34] 2 res := n + 1; VAL [n=39, res=40] [L34] 1 res := n + 1; VAL [n=39, res=40] [L24] JOIN 2 join 42 assign x; VAL [n=39, res=40, x=24] [L28] 0 assert x == 8 || x == 40; VAL [n=39, res=40, x=24] - UnprovableResult [Line: 13]: 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. - 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. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 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! [2022-02-09 13:52:52,302 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 [2022-02-09 13:52:52,515 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...