/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrlen-alloca-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 22:47:12,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 22:47:12,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 22:47:12,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 22:47:12,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 22:47:12,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 22:47:12,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 22:47:12,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 22:47:12,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 22:47:12,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 22:47:12,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 22:47:12,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 22:47:12,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 22:47:12,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 22:47:12,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 22:47:12,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 22:47:12,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 22:47:12,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 22:47:12,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 22:47:12,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 22:47:12,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 22:47:12,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 22:47:12,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 22:47:12,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 22:47:12,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 22:47:12,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 22:47:12,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 22:47:12,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 22:47:12,581 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 22:47:12,616 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 22:47:12,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 22:47:12,620 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 22:47:12,620 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 22:47:12,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 22:47:12,621 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 22:47:12,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 22:47:12,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 22:47:12,624 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 22:47:12,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 22:47:12,624 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 22:47:12,626 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 22:47:12,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 22:47:12,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 22:47:12,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 22:47:12,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 22:47:12,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 22:47:12,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 22:47:12,627 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 22:47:12,628 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 22:47:12,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 22:47:12,628 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 22:47:12,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 22:47:12,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 22:47:12,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 22:47:12,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 22:47:12,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:47:12,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 22:47:12,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 22:47:12,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 22:47:12,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 22:47:12,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 22:47:12,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 22:47:12,631 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 22:47:13,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 22:47:13,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 22:47:13,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 22:47:13,087 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 22:47:13,088 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 22:47:13,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrlen-alloca-2.i [2022-10-15 22:47:13,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3aaff6137/8cff1f12b3d64d929b827792d387e6bd/FLAGe24c56033 [2022-10-15 22:47:13,861 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 22:47:13,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrlen-alloca-2.i [2022-10-15 22:47:13,879 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3aaff6137/8cff1f12b3d64d929b827792d387e6bd/FLAGe24c56033 [2022-10-15 22:47:14,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3aaff6137/8cff1f12b3d64d929b827792d387e6bd [2022-10-15 22:47:14,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 22:47:14,156 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 22:47:14,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 22:47:14,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 22:47:14,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 22:47:14,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:47:14" (1/1) ... [2022-10-15 22:47:14,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@563e75ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:47:14, skipping insertion in model container [2022-10-15 22:47:14,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:47:14" (1/1) ... [2022-10-15 22:47:14,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 22:47:14,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 22:47:14,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:47:14,553 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 22:47:14,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:47:14,683 INFO L208 MainTranslator]: Completed translation [2022-10-15 22:47:14,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:47:14 WrapperNode [2022-10-15 22:47:14,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 22:47:14,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 22:47:14,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 22:47:14,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 22:47:14,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:47:14" (1/1) ... [2022-10-15 22:47:14,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:47:14" (1/1) ... [2022-10-15 22:47:14,768 INFO L138 Inliner]: procedures = 111, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2022-10-15 22:47:14,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 22:47:14,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 22:47:14,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 22:47:14,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 22:47:14,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:47:14" (1/1) ... [2022-10-15 22:47:14,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:47:14" (1/1) ... [2022-10-15 22:47:14,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:47:14" (1/1) ... [2022-10-15 22:47:14,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:47:14" (1/1) ... [2022-10-15 22:47:14,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:47:14" (1/1) ... [2022-10-15 22:47:14,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:47:14" (1/1) ... [2022-10-15 22:47:14,797 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:47:14" (1/1) ... [2022-10-15 22:47:14,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:47:14" (1/1) ... [2022-10-15 22:47:14,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 22:47:14,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 22:47:14,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 22:47:14,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 22:47:14,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:47:14" (1/1) ... [2022-10-15 22:47:14,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:47:14,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:47:14,842 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) [2022-10-15 22:47:14,854 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 [2022-10-15 22:47:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 22:47:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 22:47:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 22:47:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 22:47:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 22:47:14,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 22:47:15,092 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 22:47:15,096 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 22:47:15,276 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 22:47:15,293 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 22:47:15,296 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 22:47:15,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:47:15 BoogieIcfgContainer [2022-10-15 22:47:15,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 22:47:15,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 22:47:15,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 22:47:15,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 22:47:15,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:47:14" (1/3) ... [2022-10-15 22:47:15,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ccffca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:47:15, skipping insertion in model container [2022-10-15 22:47:15,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:47:14" (2/3) ... [2022-10-15 22:47:15,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ccffca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:47:15, skipping insertion in model container [2022-10-15 22:47:15,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:47:15" (3/3) ... [2022-10-15 22:47:15,329 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrlen-alloca-2.i [2022-10-15 22:47:15,413 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 22:47:15,416 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 22:47:15,518 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 22:47:15,527 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@237e71bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 22:47:15,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 22:47:15,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 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) [2022-10-15 22:47:15,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 22:47:15,541 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:47:15,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 22:47:15,543 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-15 22:47:15,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:47:15,551 INFO L85 PathProgramCache]: Analyzing trace with hash 28693827, now seen corresponding path program 1 times [2022-10-15 22:47:15,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:47:15,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912779253] [2022-10-15 22:47:15,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:47:15,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:47:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:47:15,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:47:15,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:47:15,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912779253] [2022-10-15 22:47:15,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912779253] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:47:15,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:47:15,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:47:15,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229764653] [2022-10-15 22:47:15,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:47:15,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:47:15,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:47:15,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:47:15,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:47:15,836 INFO L87 Difference]: Start difference. First operand has 16 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-15 22:47:15,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:47:15,878 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-10-15 22:47:15,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:47:15,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2022-10-15 22:47:15,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:47:15,890 INFO L225 Difference]: With dead ends: 33 [2022-10-15 22:47:15,891 INFO L226 Difference]: Without dead ends: 11 [2022-10-15 22:47:15,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:47:15,899 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 11 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:47:15,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 22 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:47:15,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-10-15 22:47:15,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2022-10-15 22:47:15,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:47:15,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-10-15 22:47:15,937 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2022-10-15 22:47:15,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:47:15,938 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-10-15 22:47:15,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-15 22:47:15,938 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-10-15 22:47:15,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 22:47:15,939 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:47:15,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 22:47:15,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 22:47:15,940 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-15 22:47:15,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:47:15,941 INFO L85 PathProgramCache]: Analyzing trace with hash 28695749, now seen corresponding path program 1 times [2022-10-15 22:47:15,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:47:15,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348215845] [2022-10-15 22:47:15,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:47:15,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:47:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:47:16,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:47:16,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:47:16,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348215845] [2022-10-15 22:47:16,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348215845] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:47:16,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:47:16,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:47:16,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698456813] [2022-10-15 22:47:16,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:47:16,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:47:16,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:47:16,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:47:16,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:47:16,014 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-15 22:47:16,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:47:16,037 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2022-10-15 22:47:16,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:47:16,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2022-10-15 22:47:16,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:47:16,039 INFO L225 Difference]: With dead ends: 10 [2022-10-15 22:47:16,039 INFO L226 Difference]: Without dead ends: 9 [2022-10-15 22:47:16,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:47:16,043 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:47:16,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:47:16,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-10-15 22:47:16,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2022-10-15 22:47:16,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-10-15 22:47:16,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-10-15 22:47:16,050 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2022-10-15 22:47:16,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:47:16,052 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-10-15 22:47:16,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-15 22:47:16,053 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-10-15 22:47:16,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-15 22:47:16,054 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:47:16,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-15 22:47:16,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 22:47:16,055 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-15 22:47:16,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:47:16,057 INFO L85 PathProgramCache]: Analyzing trace with hash 889508680, now seen corresponding path program 1 times [2022-10-15 22:47:16,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:47:16,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743096235] [2022-10-15 22:47:16,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:47:16,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:47:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:47:16,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:47:16,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:47:16,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743096235] [2022-10-15 22:47:16,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743096235] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:47:16,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:47:16,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:47:16,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383414016] [2022-10-15 22:47:16,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:47:16,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:47:16,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:47:16,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:47:16,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:47:16,185 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-10-15 22:47:16,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:47:16,210 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2022-10-15 22:47:16,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:47:16,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-10-15 22:47:16,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:47:16,212 INFO L225 Difference]: With dead ends: 7 [2022-10-15 22:47:16,212 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 22:47:16,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:47:16,216 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:47:16,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:47:16,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 22:47:16,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 22:47:16,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-10-15 22:47:16,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 22:47:16,225 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2022-10-15 22:47:16,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:47:16,226 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 22:47:16,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-10-15 22:47:16,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 22:47:16,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 22:47:16,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-10-15 22:47:16,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-10-15 22:47:16,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 22:47:16,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-15 22:47:16,250 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 561) no Hoare annotation was computed. [2022-10-15 22:47:16,250 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-15 22:47:16,251 INFO L902 garLoopResultBuilder]: At program point L562(lines 555 563) the Hoare annotation is: true [2022-10-15 22:47:16,251 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-15 22:47:16,251 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 561) no Hoare annotation was computed. [2022-10-15 22:47:16,252 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-15 22:47:16,253 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-15 22:47:16,256 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2022-10-15 22:47:16,256 INFO L899 garLoopResultBuilder]: For program point L561-1(line 561) no Hoare annotation was computed. [2022-10-15 22:47:16,256 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 559) no Hoare annotation was computed. [2022-10-15 22:47:16,257 INFO L899 garLoopResultBuilder]: For program point L557-2(lines 557 559) no Hoare annotation was computed. [2022-10-15 22:47:16,257 INFO L902 garLoopResultBuilder]: At program point L553(lines 547 554) the Hoare annotation is: true [2022-10-15 22:47:16,257 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 551 552) no Hoare annotation was computed. [2022-10-15 22:47:16,257 INFO L899 garLoopResultBuilder]: For program point L551-3(lines 551 552) no Hoare annotation was computed. [2022-10-15 22:47:16,258 INFO L902 garLoopResultBuilder]: At program point L551-4(lines 551 552) the Hoare annotation is: true [2022-10-15 22:47:16,258 INFO L899 garLoopResultBuilder]: For program point L551-5(lines 551 552) no Hoare annotation was computed. [2022-10-15 22:47:16,272 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-10-15 22:47:16,275 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 22:47:16,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:47:16 BoogieIcfgContainer [2022-10-15 22:47:16,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 22:47:16,305 INFO L158 Benchmark]: Toolchain (without parser) took 2152.16ms. Allocated memory is still 151.0MB. Free memory was 125.6MB in the beginning and 101.9MB in the end (delta: 23.8MB). Peak memory consumption was 23.5MB. Max. memory is 8.0GB. [2022-10-15 22:47:16,307 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 121.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 22:47:16,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.35ms. Allocated memory is still 151.0MB. Free memory was 125.5MB in the beginning and 110.6MB in the end (delta: 14.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-10-15 22:47:16,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.10ms. Allocated memory is still 151.0MB. Free memory was 110.4MB in the beginning and 108.7MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 22:47:16,317 INFO L158 Benchmark]: Boogie Preprocessor took 29.65ms. Allocated memory is still 151.0MB. Free memory was 108.7MB in the beginning and 107.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 22:47:16,317 INFO L158 Benchmark]: RCFGBuilder took 498.18ms. Allocated memory is still 151.0MB. Free memory was 107.3MB in the beginning and 96.7MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-15 22:47:16,318 INFO L158 Benchmark]: TraceAbstraction took 992.57ms. Allocated memory is still 151.0MB. Free memory was 95.9MB in the beginning and 101.9MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 22:47:16,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 121.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 528.35ms. Allocated memory is still 151.0MB. Free memory was 125.5MB in the beginning and 110.6MB in the end (delta: 14.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 81.10ms. Allocated memory is still 151.0MB. Free memory was 110.4MB in the beginning and 108.7MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.65ms. Allocated memory is still 151.0MB. Free memory was 108.7MB in the beginning and 107.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 498.18ms. Allocated memory is still 151.0MB. Free memory was 107.3MB in the beginning and 96.7MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 992.57ms. Allocated memory is still 151.0MB. Free memory was 95.9MB in the beginning and 101.9MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 19 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 2 specifications checked. All of them hold - InvariantResult [Line: 547]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-15 22:47:16,394 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...