/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.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 18:12:46,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 18:12:46,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 18:12:46,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 18:12:46,426 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.epf [2022-02-09 18:12:46,453 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 18:12:46,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 18:12:46,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 18:12:46,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 18:12:46,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 18:12:46,455 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 18:12:46,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 18:12:46,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 18:12:46,455 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 18:12:46,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 18:12:46,456 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 18:12:46,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 18:12:46,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 18:12:46,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 18:12:46,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 18:12:46,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 18:12:46,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 18:12:46,457 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 18:12:46,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 18:12:46,457 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 18:12:46,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 18:12:46,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 18:12:46,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 18:12:46,457 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 18:12:46,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 18:12:46,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 18:12:46,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 18:12:46,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 18:12:46,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 18:12:46,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 18:12:46,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 18:12:46,458 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 18:12:46,458 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 18:12:46,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 18:12:46,458 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-09 18:12:46,459 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 18:12:46,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 18:12:46,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 18:12:46,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 18:12:46,704 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-09 18:12:46,705 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-09 18:12:46,706 INFO L432 ainManager$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 18:12:46,707 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/multiple_fork_same_id.bpl' [2022-02-09 18:12:46,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 18:12:46,723 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-09 18:12:46,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 18:12:46,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 18:12:46,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 18:12:46,741 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 06:12:46" (1/1) ... [2022-02-09 18:12:46,748 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 06:12:46" (1/1) ... [2022-02-09 18:12:46,756 INFO L137 Inliner]: procedures = 2, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-09 18:12:46,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 18:12:46,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 18:12:46,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 18:12:46,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 18:12:46,764 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 06:12:46" (1/1) ... [2022-02-09 18:12:46,764 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 06:12:46" (1/1) ... [2022-02-09 18:12:46,765 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 06:12:46" (1/1) ... [2022-02-09 18:12:46,765 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 06:12:46" (1/1) ... [2022-02-09 18:12:46,768 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 06:12:46" (1/1) ... [2022-02-09 18:12:46,768 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 06:12:46" (1/1) ... [2022-02-09 18:12:46,769 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 06:12:46" (1/1) ... [2022-02-09 18:12:46,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 18:12:46,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 18:12:46,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 18:12:46,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 18:12:46,773 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 06:12:46" (1/1) ... [2022-02-09 18:12:46,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 18:12:46,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 18:12:46,801 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 18:12:46,809 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 18:12:46,842 INFO L124 BoogieDeclarations]: Specification and implementation of procedure increment given in one single declaration [2022-02-09 18:12:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2022-02-09 18:12:46,843 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2022-02-09 18:12:46,843 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-09 18:12:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 18:12:46,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 18:12:46,844 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 18:12:46,876 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 18:12:46,877 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 18:12:46,936 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 18:12:46,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 18:12:46,942 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 18:12:46,944 INFO L202 PluginConnector]: Adding new model multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 06:12:46 BoogieIcfgContainer [2022-02-09 18:12:46,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 18:12:46,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 18:12:46,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 18:12:46,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 18:12:46,952 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 06:12:46" (1/2) ... [2022-02-09 18:12:46,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fff1ae and model type multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 06:12:46, skipping insertion in model container [2022-02-09 18:12:46,953 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 06:12:46" (2/2) ... [2022-02-09 18:12:46,954 INFO L111 eAbstractionObserver]: Analyzing ICFG multiple_fork_same_id.bpl [2022-02-09 18:12:46,962 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 18:12:46,962 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 18:12:46,962 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 18:12:46,962 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 18:12:46,985 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:46,985 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:46,985 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:46,986 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:46,986 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:46,986 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:46,986 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:46,987 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:46,987 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:46,987 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:46,987 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:46,987 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:46,995 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:46,997 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:46,998 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 18:12:47,000 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-09 18:12:47,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 18:12:47,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 18:12:47,041 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 18:12:47,042 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 18:12:47,065 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 18:12:47,070 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=false, 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 18:12:47,071 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-09 18:12:47,077 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 18 transitions, 60 flow [2022-02-09 18:12:47,101 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 148 states, 142 states have (on average 2.3450704225352115) internal successors, (333), 147 states have internal predecessors, (333), 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 18:12:47,141 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 29 transitions and produced 30 states. [2022-02-09 18:12:47,143 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 18:12:47,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 18:12:47,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2143640910, now seen corresponding path program 1 times [2022-02-09 18:12:47,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 18:12:47,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245433516] [2022-02-09 18:12:47,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 18:12:47,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 18:12:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 18:12:47,325 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 18:12:47,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 18:12:47,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245433516] [2022-02-09 18:12:47,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245433516] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 18:12:47,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 18:12:47,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 18:12:47,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445156704] [2022-02-09 18:12:47,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 18:12:47,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 18:12:47,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 18:12:47,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 18:12:47,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-09 18:12:47,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 18:12:47,372 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 18:12:47,373 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 18:12:47,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 18:12:47,443 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 32 transitions and produced 33 states. [2022-02-09 18:12:47,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 18:12:47,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 18:12:47,444 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 18:12:47,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 18:12:47,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2143640941, now seen corresponding path program 1 times [2022-02-09 18:12:47,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 18:12:47,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072718554] [2022-02-09 18:12:47,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 18:12:47,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 18:12:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 18:12:47,451 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 18:12:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 18:12:47,481 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 18:12:47,482 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 18:12:47,483 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-09 18:12:47,484 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-09 18:12:47,484 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-09 18:12:47,485 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-09 18:12:47,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 18:12:47,490 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-09 18:12:47,493 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 18:12:47,493 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 18:12:47,519 INFO L202 PluginConnector]: Adding new model multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 06:12:47 BasicIcfg [2022-02-09 18:12:47,520 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 18:12:47,522 INFO L158 Benchmark]: Toolchain (without parser) took 798.40ms. Allocated memory was 194.0MB in the beginning and 238.0MB in the end (delta: 44.0MB). Free memory was 153.3MB in the beginning and 209.7MB in the end (delta: -56.4MB). Peak memory consumption was 4.6MB. Max. memory is 8.0GB. [2022-02-09 18:12:47,523 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 194.0MB. Free memory is still 154.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 18:12:47,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.49ms. Allocated memory is still 194.0MB. Free memory was 153.1MB in the beginning and 151.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 18:12:47,525 INFO L158 Benchmark]: Boogie Preprocessor took 11.70ms. Allocated memory is still 194.0MB. Free memory was 151.7MB in the beginning and 150.8MB in the end (delta: 900.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 18:12:47,526 INFO L158 Benchmark]: RCFGBuilder took 174.49ms. Allocated memory is still 194.0MB. Free memory was 150.8MB in the beginning and 142.9MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-02-09 18:12:47,527 INFO L158 Benchmark]: TraceAbstraction took 572.14ms. Allocated memory was 194.0MB in the beginning and 238.0MB in the end (delta: 44.0MB). Free memory was 142.5MB in the beginning and 209.7MB in the end (delta: -67.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 18:12:47,528 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 194.0MB. Free memory is still 154.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.49ms. Allocated memory is still 194.0MB. Free memory was 153.1MB in the beginning and 151.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.70ms. Allocated memory is still 194.0MB. Free memory was 151.7MB in the beginning and 150.8MB in the end (delta: 900.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 174.49ms. Allocated memory is still 194.0MB. Free memory was 150.8MB in the beginning and 142.9MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 572.14ms. Allocated memory was 194.0MB in the beginning and 238.0MB in the end (delta: 44.0MB). Free memory was 142.5MB in the beginning and 209.7MB in the end (delta: -67.2MB). 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: 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 with 1 thread instances CFG has 5 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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=148occurred 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 18:12:47,552 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 [2022-02-09 18:12:47,760 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...