/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/ThreadIdTest-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-29 12:56:46,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-29 12:56:46,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-29 12:56:46,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-29 12:56:46,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-29 12:56:46,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-29 12:56:46,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-29 12:56:46,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-29 12:56:46,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-29 12:56:46,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-29 12:56:46,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-29 12:56:46,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-29 12:56:46,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-29 12:56:46,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-29 12:56:46,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-29 12:56:46,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-29 12:56:46,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-29 12:56:46,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-29 12:56:46,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-29 12:56:46,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-29 12:56:46,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-29 12:56:46,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-29 12:56:46,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-29 12:56:46,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-29 12:56:46,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-29 12:56:46,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-29 12:56:46,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-29 12:56:46,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-29 12:56:46,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-29 12:56:46,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-29 12:56:46,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-29 12:56:46,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-29 12:56:46,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-29 12:56:46,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-29 12:56:46,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-29 12:56:46,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-29 12:56:46,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-29 12:56:46,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-29 12:56:46,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-29 12:56:46,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-29 12:56:46,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-29 12:56:46,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks.epf [2022-01-29 12:56:46,313 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-29 12:56:46,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-29 12:56:46,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-29 12:56:46,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-29 12:56:46,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-29 12:56:46,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-29 12:56:46,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-29 12:56:46,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-29 12:56:46,314 INFO L138 SettingsManager]: * Use SBE=true [2022-01-29 12:56:46,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-29 12:56:46,314 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-29 12:56:46,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-29 12:56:46,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-29 12:56:46,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-29 12:56:46,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-29 12:56:46,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-29 12:56:46,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-29 12:56:46,317 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-29 12:56:46,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-29 12:56:46,317 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-29 12:56:46,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-29 12:56:46,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-29 12:56:46,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-29 12:56:46,318 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-29 12:56:46,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-29 12:56:46,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 12:56:46,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-29 12:56:46,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-29 12:56:46,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-29 12:56:46,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-29 12:56:46,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-29 12:56:46,319 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-29 12:56:46,319 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-01-29 12:56:46,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-29 12:56:46,320 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-01-29 12:56:46,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-29 12:56:46,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-29 12:56:46,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-29 12:56:46,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-29 12:56:46,560 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-29 12:56:46,562 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-29 12:56:46,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/ThreadIdTest-Safe.bpl [2022-01-29 12:56:46,564 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/ThreadIdTest-Safe.bpl' [2022-01-29 12:56:46,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-29 12:56:46,582 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-29 12:56:46,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-29 12:56:46,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-29 12:56:46,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-29 12:56:46,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:46" (1/1) ... [2022-01-29 12:56:46,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:46" (1/1) ... [2022-01-29 12:56:46,601 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-29 12:56:46,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-29 12:56:46,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-29 12:56:46,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-29 12:56:46,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-29 12:56:46,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:46" (1/1) ... [2022-01-29 12:56:46,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:46" (1/1) ... [2022-01-29 12:56:46,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:46" (1/1) ... [2022-01-29 12:56:46,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:46" (1/1) ... [2022-01-29 12:56:46,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:46" (1/1) ... [2022-01-29 12:56:46,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:46" (1/1) ... [2022-01-29 12:56:46,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:46" (1/1) ... [2022-01-29 12:56:46,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-29 12:56:46,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-29 12:56:46,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-29 12:56:46,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-29 12:56:46,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:46" (1/1) ... [2022-01-29 12:56:46,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 12:56:46,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 12:56:46,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-29 12:56:46,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-29 12:56:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure decrement [2022-01-29 12:56:46,717 INFO L138 BoogieDeclarations]: Found implementation of procedure decrement [2022-01-29 12:56:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2022-01-29 12:56:46,717 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2022-01-29 12:56:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-29 12:56:46,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-29 12:56:46,718 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-29 12:56:46,750 INFO L234 CfgBuilder]: Building ICFG [2022-01-29 12:56:46,751 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-29 12:56:46,818 INFO L275 CfgBuilder]: Performing block encoding [2022-01-29 12:56:46,825 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-29 12:56:46,825 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-29 12:56:46,827 INFO L202 PluginConnector]: Adding new model ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 12:56:46 BoogieIcfgContainer [2022-01-29 12:56:46,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-29 12:56:46,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-29 12:56:46,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-29 12:56:46,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-29 12:56:46,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 12:56:46" (1/2) ... [2022-01-29 12:56:46,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48742d02 and model type ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 12:56:46, skipping insertion in model container [2022-01-29 12:56:46,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 12:56:46" (2/2) ... [2022-01-29 12:56:46,836 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest-Safe.bpl [2022-01-29 12:56:46,842 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-29 12:56:46,842 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-29 12:56:46,842 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-29 12:56:46,843 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-29 12:56:46,867 WARN L322 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:46,868 WARN L322 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:46,868 WARN L322 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:46,868 WARN L322 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:46,870 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:46,871 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:46,871 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:46,871 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:46,874 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:46,877 WARN L322 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 12:56:46,879 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-29 12:56:46,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 12:56:46,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 12:56:46,936 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-01-29 12:56:46,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-01-29 12:56:46,965 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-29 12:56:46,971 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-29 12:56:46,971 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-29 12:56:47,048 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 12:56:47,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 12:56:47,052 INFO L85 PathProgramCache]: Analyzing trace with hash 699791812, now seen corresponding path program 1 times [2022-01-29 12:56:47,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 12:56:47,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815679979] [2022-01-29 12:56:47,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 12:56:47,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 12:56:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 12:56:47,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 12:56:47,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 12:56:47,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815679979] [2022-01-29 12:56:47,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815679979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 12:56:47,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 12:56:47,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-29 12:56:47,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096896872] [2022-01-29 12:56:47,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 12:56:47,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-29 12:56:47,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 12:56:47,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-29 12:56:47,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-29 12:56:47,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 12:56:47,303 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 12:56:47,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 12:56:47,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 12:56:47,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-29 12:56:47,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-29 12:56:47,419 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 12:56:47,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 12:56:47,420 INFO L85 PathProgramCache]: Analyzing trace with hash 699791843, now seen corresponding path program 1 times [2022-01-29 12:56:47,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 12:56:47,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130279065] [2022-01-29 12:56:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 12:56:47,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 12:56:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 12:56:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 12:56:47,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 12:56:47,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130279065] [2022-01-29 12:56:47,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130279065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 12:56:47,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 12:56:47,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 12:56:47,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463838986] [2022-01-29 12:56:47,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 12:56:47,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 12:56:47,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 12:56:47,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 12:56:47,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 12:56:47,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 12:56:47,445 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 12:56:47,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 12:56:47,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-01-29 12:56:47,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 12:56:47,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-29 12:56:47,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 12:56:47,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-01-29 12:56:47,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-29 12:56:47,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-29 12:56:47,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-29 12:56:47,579 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-29 12:56:47,581 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-29 12:56:47,581 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-29 12:56:47,583 INFO L202 PluginConnector]: Adding new model ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 12:56:47 BasicIcfg [2022-01-29 12:56:47,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-29 12:56:47,583 INFO L158 Benchmark]: Toolchain (without parser) took 1001.00ms. Allocated memory was 184.5MB in the beginning and 255.9MB in the end (delta: 71.3MB). Free memory was 143.5MB in the beginning and 172.2MB in the end (delta: -28.7MB). Peak memory consumption was 44.5MB. Max. memory is 8.0GB. [2022-01-29 12:56:47,584 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-29 12:56:47,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.01ms. Allocated memory is still 184.5MB. Free memory was 143.5MB in the beginning and 141.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-29 12:56:47,584 INFO L158 Benchmark]: Boogie Preprocessor took 12.22ms. Allocated memory is still 184.5MB. Free memory was 141.9MB in the beginning and 141.0MB in the end (delta: 882.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-29 12:56:47,585 INFO L158 Benchmark]: RCFGBuilder took 211.62ms. Allocated memory is still 184.5MB. Free memory was 141.0MB in the beginning and 133.3MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-29 12:56:47,585 INFO L158 Benchmark]: TraceAbstraction took 752.48ms. Allocated memory was 184.5MB in the beginning and 255.9MB in the end (delta: 71.3MB). Free memory was 132.8MB in the beginning and 172.2MB in the end (delta: -39.4MB). Peak memory consumption was 33.0MB. Max. memory is 8.0GB. [2022-01-29 12:56:47,600 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 0.12ms. Allocated memory is still 184.5MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.01ms. Allocated memory is still 184.5MB. Free memory was 143.5MB in the beginning and 141.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.22ms. Allocated memory is still 184.5MB. Free memory was 141.9MB in the beginning and 141.0MB in the end (delta: 882.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 211.62ms. Allocated memory is still 184.5MB. Free memory was 141.0MB in the beginning and 133.3MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 752.48ms. Allocated memory was 184.5MB in the beginning and 255.9MB in the end (delta: 71.3MB). Free memory was 132.8MB in the beginning and 172.2MB in the end (delta: -39.4MB). Peak memory consumption was 33.0MB. 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 - PositiveResult [Line: 22]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 22 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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: 9, 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, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-29 12:56:47,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-01-29 12:56:47,830 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...