/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-varabs.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/cutoff_test.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-11 11:29:53,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-11 11:29:53,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-11 11:29:53,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-11 11:29:53,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-11 11:29:53,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-11 11:29:53,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-11 11:29:53,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-11 11:29:53,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-11 11:29:53,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-11 11:29:53,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-11 11:29:53,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-11 11:29:53,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-11 11:29:53,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-11 11:29:53,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-11 11:29:53,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-11 11:29:53,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-11 11:29:53,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-11 11:29:53,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-11 11:29:53,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-11 11:29:53,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-11 11:29:53,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-11 11:29:53,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-11 11:29:53,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-11 11:29:53,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-11 11:29:53,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-11 11:29:53,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-11 11:29:53,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-11 11:29:53,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-11 11:29:53,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-11 11:29:53,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-11 11:29:53,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-11 11:29:53,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-11 11:29:53,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-11 11:29:53,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-11 11:29:53,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-11 11:29:53,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-11 11:29:53,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-11 11:29:53,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-11 11:29:53,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-11 11:29:53,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-11 11:29:53,847 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-varabs.epf [2022-02-11 11:29:53,872 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-11 11:29:53,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-11 11:29:53,872 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-11 11:29:53,872 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-11 11:29:53,873 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-11 11:29:53,873 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-11 11:29:53,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-11 11:29:53,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-11 11:29:53,874 INFO L138 SettingsManager]: * Use SBE=true [2022-02-11 11:29:53,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-11 11:29:53,874 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-11 11:29:53,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-11 11:29:53,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-11 11:29:53,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-11 11:29:53,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-11 11:29:53,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-11 11:29:53,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-11 11:29:53,875 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-11 11:29:53,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-11 11:29:53,875 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-11 11:29:53,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-11 11:29:53,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-11 11:29:53,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-11 11:29:53,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-11 11:29:53,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-11 11:29:53,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 11:29:53,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-11 11:29:53,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-11 11:29:53,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-11 11:29:53,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-11 11:29:53,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-11 11:29:53,877 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-11 11:29:53,877 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-02-11 11:29:53,877 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-11 11:29:53,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-11 11:29:53,877 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-11 11:29:53,877 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-11 11:29:53,877 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-11 11:29:54,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-11 11:29:54,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-11 11:29:54,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-11 11:29:54,095 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-11 11:29:54,095 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-11 11:29:54,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/cutoff_test.bpl [2022-02-11 11:29:54,096 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/cutoff_test.bpl' [2022-02-11 11:29:54,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-11 11:29:54,114 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-11 11:29:54,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-11 11:29:54,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-11 11:29:54,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-11 11:29:54,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "cutoff_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 11:29:54" (1/1) ... [2022-02-11 11:29:54,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "cutoff_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 11:29:54" (1/1) ... [2022-02-11 11:29:54,132 INFO L137 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-11 11:29:54,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-11 11:29:54,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-11 11:29:54,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-11 11:29:54,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-11 11:29:54,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cutoff_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 11:29:54" (1/1) ... [2022-02-11 11:29:54,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cutoff_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 11:29:54" (1/1) ... [2022-02-11 11:29:54,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cutoff_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 11:29:54" (1/1) ... [2022-02-11 11:29:54,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cutoff_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 11:29:54" (1/1) ... [2022-02-11 11:29:54,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cutoff_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 11:29:54" (1/1) ... [2022-02-11 11:29:54,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cutoff_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 11:29:54" (1/1) ... [2022-02-11 11:29:54,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cutoff_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 11:29:54" (1/1) ... [2022-02-11 11:29:54,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-11 11:29:54,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-11 11:29:54,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-11 11:29:54,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-11 11:29:54,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cutoff_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 11:29:54" (1/1) ... [2022-02-11 11:29:54,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 11:29:54,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 11:29:54,169 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) [2022-02-11 11:29:54,176 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 [2022-02-11 11:29:54,207 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-11 11:29:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-11 11:29:54,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-11 11:29:54,208 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread1 given in one single declaration [2022-02-11 11:29:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure Thread1 [2022-02-11 11:29:54,208 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread1 [2022-02-11 11:29:54,209 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-11 11:29:54,238 INFO L234 CfgBuilder]: Building ICFG [2022-02-11 11:29:54,239 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-11 11:29:54,297 INFO L275 CfgBuilder]: Performing block encoding [2022-02-11 11:29:54,301 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-11 11:29:54,302 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-11 11:29:54,303 INFO L202 PluginConnector]: Adding new model cutoff_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 11:29:54 BoogieIcfgContainer [2022-02-11 11:29:54,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-11 11:29:54,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-11 11:29:54,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-11 11:29:54,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-11 11:29:54,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cutoff_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 11:29:54" (1/2) ... [2022-02-11 11:29:54,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb8d87d and model type cutoff_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.02 11:29:54, skipping insertion in model container [2022-02-11 11:29:54,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cutoff_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 11:29:54" (2/2) ... [2022-02-11 11:29:54,311 INFO L112 eAbstractionObserver]: Analyzing ICFG cutoff_test.bpl [2022-02-11 11:29:54,322 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-11 11:29:54,323 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-11 11:29:54,323 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-11 11:29:54,323 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-11 11:29:54,353 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-11 11:29:54,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 11:29:54,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 11:29:54,395 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) [2022-02-11 11:29:54,396 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 [2022-02-11 11:29:54,427 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-11 11:29:54,433 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 [2022-02-11 11:29:54,433 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-11 11:29:54,524 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-11 11:29:54,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 11:29:54,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1119027243, now seen corresponding path program 1 times [2022-02-11 11:29:54,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 11:29:54,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889068466] [2022-02-11 11:29:54,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 11:29:54,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 11:29:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 11:29:54,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 11:29:54,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 11:29:54,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889068466] [2022-02-11 11:29:54,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889068466] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 11:29:54,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 11:29:54,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 11:29:54,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959706745] [2022-02-11 11:29:54,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 11:29:54,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-11 11:29:54,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 11:29:54,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-11 11:29:54,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-11 11:29:54,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 11:29:54,694 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 11:29:54,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-02-11 11:29:54,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 11:29:54,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 11:29:54,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: ResultService,SelfDestructingSolverStorable0 [2022-02-11 11:29:54,742 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-11 11:29:54,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 11:29:54,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1120010346, now seen corresponding path program 1 times [2022-02-11 11:29:54,742 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 11:29:54,742 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275107205] [2022-02-11 11:29:54,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 11:29:54,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 11:29:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 11:29:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 11:29:54,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 11:29:54,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275107205] [2022-02-11 11:29:54,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275107205] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 11:29:54,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 11:29:54,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-11 11:29:54,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258756907] [2022-02-11 11:29:54,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 11:29:54,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-11 11:29:54,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 11:29:54,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-11 11:29:54,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-11 11:29:54,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 11:29:54,784 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 11:29:54,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-02-11 11:29:54,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 11:29:54,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 11:29:54,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 11:29:54,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-11 11:29:54,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,ResultService [2022-02-11 11:29:54,850 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-11 11:29:54,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 11:29:54,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1294287696, now seen corresponding path program 2 times [2022-02-11 11:29:54,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 11:29:54,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87499184] [2022-02-11 11:29:54,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 11:29:54,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 11:29:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 11:29:54,856 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-11 11:29:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 11:29:54,866 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-11 11:29:54,866 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-11 11:29:54,867 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-11 11:29:54,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-11 11:29:54,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-11 11:29:54,871 INFO L733 BasicCegarLoop]: Path program histogram: [2, 1] [2022-02-11 11:29:54,874 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-11 11:29:54,874 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-11 11:29:54,880 INFO L202 PluginConnector]: Adding new model cutoff_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.02 11:29:54 BasicIcfg [2022-02-11 11:29:54,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-11 11:29:54,881 INFO L158 Benchmark]: Toolchain (without parser) took 766.83ms. Allocated memory was 187.7MB in the beginning and 235.9MB in the end (delta: 48.2MB). Free memory was 152.8MB in the beginning and 211.6MB in the end (delta: -58.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-11 11:29:54,881 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 153.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-11 11:29:54,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.91ms. Allocated memory is still 187.7MB. Free memory was 152.8MB in the beginning and 151.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-11 11:29:54,882 INFO L158 Benchmark]: Boogie Preprocessor took 10.30ms. Allocated memory is still 187.7MB. Free memory was 151.3MB in the beginning and 150.4MB in the end (delta: 898.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-11 11:29:54,882 INFO L158 Benchmark]: RCFGBuilder took 159.88ms. Allocated memory is still 187.7MB. Free memory was 150.2MB in the beginning and 142.4MB in the end (delta: 7.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-02-11 11:29:54,883 INFO L158 Benchmark]: TraceAbstraction took 573.54ms. Allocated memory was 187.7MB in the beginning and 235.9MB in the end (delta: 48.2MB). Free memory was 142.0MB in the beginning and 211.6MB in the end (delta: -69.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-11 11:29:54,884 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 0.11ms. Allocated memory is still 187.7MB. Free memory is still 153.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.91ms. Allocated memory is still 187.7MB. Free memory was 152.8MB in the beginning and 151.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.30ms. Allocated memory is still 187.7MB. Free memory was 151.3MB in the beginning and 150.4MB in the end (delta: 898.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 159.88ms. Allocated memory is still 187.7MB. Free memory was 150.2MB in the beginning and 142.4MB in the end (delta: 7.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 573.54ms. Allocated memory was 187.7MB in the beginning and 235.9MB in the end (delta: 48.2MB). Free memory was 142.0MB in the beginning and 211.6MB in the end (delta: -69.6MB). 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: 48, positive: 33, positive conditional: 13, positive unconditional: 20, negative: 15, negative conditional: 12, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 63, positive: 59, positive conditional: 17, positive unconditional: 42, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 63, positive: 59, positive conditional: 17, positive unconditional: 42, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 65, positive: 59, positive conditional: 9, positive unconditional: 50, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 65, positive: 59, positive conditional: 9, positive unconditional: 50, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 65, positive: 59, positive conditional: 9, positive unconditional: 50, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 46, positive: 41, positive conditional: 1, positive unconditional: 40, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 46, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 61, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 29, negative conditional: 14, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 65, positive: 18, positive conditional: 8, positive unconditional: 10, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 46, unknown conditional: 3, unknown unconditional: 43] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 41, Positive conditional cache size: 1, Positive unconditional cache size: 40, Negative cache size: 5, Negative conditional cache size: 2, Negative unconditional cache size: 3, Eliminated conditions: 0, Maximal queried relation: 2, Independence queries for same thread: 11 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.0s, Number of persistent set computation: 13, Number of trivial persistent sets: 13, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 48, positive: 33, positive conditional: 13, positive unconditional: 20, negative: 15, negative conditional: 12, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 63, positive: 59, positive conditional: 17, positive unconditional: 42, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 63, positive: 59, positive conditional: 17, positive unconditional: 42, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 65, positive: 59, positive conditional: 9, positive unconditional: 50, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 65, positive: 59, positive conditional: 9, positive unconditional: 50, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 65, positive: 59, positive conditional: 9, positive unconditional: 50, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 46, positive: 41, positive conditional: 1, positive unconditional: 40, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 46, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 61, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 29, negative conditional: 14, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 65, positive: 18, positive conditional: 8, positive unconditional: 10, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 46, unknown conditional: 3, unknown unconditional: 43] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 41, Positive conditional cache size: 1, Positive unconditional cache size: 40, Negative cache size: 5, Negative conditional cache size: 2, Negative unconditional cache size: 3, Eliminated conditions: 0, Maximal queried relation: 2, Independence queries for same thread: 11 - 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: 26]: assertion can be violated assertion can be violated We found a FailurePath: [L20] FORK 0 fork 1 Thread1(); [L22] 0 x := 0; VAL [x=0] [L37] 1 x := x + 1; VAL [x=1] [L23] 0 x := 2 * x; VAL [x=2] [L25] JOIN 1 join 1; VAL [x=2] [L26] 0 assert x != 2; VAL [x=2] - UnprovableResult [Line: 17]: 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 3 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 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 RESULT: Ultimate proved your program to be incorrect! [2022-02-11 11:29:54,911 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 [2022-02-11 11:29:55,114 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...