./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 687269bb6882b72a3d48999f1e5c55a1d5283a94 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 10:41:46,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 10:41:46,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 10:41:46,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 10:41:46,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 10:41:46,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 10:41:46,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 10:41:46,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 10:41:46,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 10:41:46,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 10:41:46,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 10:41:46,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 10:41:46,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 10:41:46,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 10:41:46,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 10:41:46,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 10:41:46,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 10:41:46,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 10:41:46,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 10:41:46,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 10:41:46,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 10:41:46,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 10:41:46,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 10:41:46,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 10:41:46,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 10:41:46,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 10:41:46,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 10:41:46,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 10:41:46,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 10:41:46,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 10:41:46,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 10:41:46,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 10:41:46,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 10:41:46,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 10:41:46,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 10:41:46,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 10:41:46,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 10:41:46,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 10:41:46,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 10:41:46,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 10:41:46,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 10:41:46,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-08-27 10:41:46,364 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 10:41:46,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 10:41:46,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 10:41:46,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 10:41:46,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 10:41:46,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 10:41:46,365 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 10:41:46,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 10:41:46,366 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 10:41:46,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 10:41:46,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 10:41:46,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-27 10:41:46,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 10:41:46,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-27 10:41:46,366 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-27 10:41:46,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 10:41:46,366 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 10:41:46,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-27 10:41:46,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 10:41:46,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 10:41:46,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 10:41:46,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 10:41:46,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 10:41:46,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 10:41:46,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-27 10:41:46,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 10:41:46,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 10:41:46,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-27 10:41:46,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 10:41:46,378 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 687269bb6882b72a3d48999f1e5c55a1d5283a94 [2021-08-27 10:41:46,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 10:41:46,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 10:41:46,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 10:41:46,659 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 10:41:46,660 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 10:41:46,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-08-27 10:41:46,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb4b97e2e/93779a55a2684224ba3e2557e4ff6a53/FLAG5ab023363 [2021-08-27 10:41:47,011 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 10:41:47,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-08-27 10:41:47,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb4b97e2e/93779a55a2684224ba3e2557e4ff6a53/FLAG5ab023363 [2021-08-27 10:41:47,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb4b97e2e/93779a55a2684224ba3e2557e4ff6a53 [2021-08-27 10:41:47,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 10:41:47,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 10:41:47,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 10:41:47,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 10:41:47,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 10:41:47,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:41:47" (1/1) ... [2021-08-27 10:41:47,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@459a24f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:41:47, skipping insertion in model container [2021-08-27 10:41:47,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:41:47" (1/1) ... [2021-08-27 10:41:47,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 10:41:47,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 10:41:47,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 10:41:47,546 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 10:41:47,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 10:41:47,563 INFO L208 MainTranslator]: Completed translation [2021-08-27 10:41:47,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:41:47 WrapperNode [2021-08-27 10:41:47,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 10:41:47,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 10:41:47,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 10:41:47,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 10:41:47,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:41:47" (1/1) ... [2021-08-27 10:41:47,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:41:47" (1/1) ... [2021-08-27 10:41:47,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 10:41:47,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 10:41:47,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 10:41:47,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 10:41:47,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:41:47" (1/1) ... [2021-08-27 10:41:47,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:41:47" (1/1) ... [2021-08-27 10:41:47,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:41:47" (1/1) ... [2021-08-27 10:41:47,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:41:47" (1/1) ... [2021-08-27 10:41:47,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:41:47" (1/1) ... [2021-08-27 10:41:47,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:41:47" (1/1) ... [2021-08-27 10:41:47,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:41:47" (1/1) ... [2021-08-27 10:41:47,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 10:41:47,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 10:41:47,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 10:41:47,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 10:41:47,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:41:47" (1/1) ... [2021-08-27 10:41:47,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 10:41:47,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:41:47,650 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) [2021-08-27 10:41:47,667 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 [2021-08-27 10:41:47,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 10:41:47,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 10:41:47,870 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 10:41:47,870 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-27 10:41:47,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:41:47 BoogieIcfgContainer [2021-08-27 10:41:47,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 10:41:47,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 10:41:47,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 10:41:47,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 10:41:47,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:41:47" (1/3) ... [2021-08-27 10:41:47,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cce2209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:41:47, skipping insertion in model container [2021-08-27 10:41:47,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:41:47" (2/3) ... [2021-08-27 10:41:47,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cce2209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:41:47, skipping insertion in model container [2021-08-27 10:41:47,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:41:47" (3/3) ... [2021-08-27 10:41:47,887 INFO L111 eAbstractionObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2021-08-27 10:41:47,890 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 10:41:47,891 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-08-27 10:41:47,936 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 10:41:47,941 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 10:41:47,941 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-08-27 10:41:47,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 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) [2021-08-27 10:41:47,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-27 10:41:47,953 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:41:47,954 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-27 10:41:47,954 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-27 10:41:47,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:41:47,958 INFO L82 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2021-08-27 10:41:47,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:41:47,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715788860] [2021-08-27 10:41:47,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:41:47,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:41:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:41:48,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:41:48,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:41:48,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715788860] [2021-08-27 10:41:48,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715788860] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:41:48,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:41:48,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-27 10:41:48,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572823624] [2021-08-27 10:41:48,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:41:48,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:41:48,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:41:48,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:41:48,103 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 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), 2 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) [2021-08-27 10:41:48,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:41:48,204 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2021-08-27 10:41:48,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:41:48,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2021-08-27 10:41:48,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:41:48,213 INFO L225 Difference]: With dead ends: 55 [2021-08-27 10:41:48,213 INFO L226 Difference]: Without dead ends: 41 [2021-08-27 10:41:48,215 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:41:48,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-08-27 10:41:48,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 31. [2021-08-27 10:41:48,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 30 states have internal predecessors, (38), 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) [2021-08-27 10:41:48,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-08-27 10:41:48,241 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 5 [2021-08-27 10:41:48,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:41:48,242 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-08-27 10:41:48,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2021-08-27 10:41:48,242 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2021-08-27 10:41:48,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-27 10:41:48,243 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:41:48,243 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-27 10:41:48,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 10:41:48,244 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-27 10:41:48,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:41:48,247 INFO L82 PathProgramCache]: Analyzing trace with hash 29863780, now seen corresponding path program 1 times [2021-08-27 10:41:48,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:41:48,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112470828] [2021-08-27 10:41:48,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:41:48,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:41:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:41:48,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:41:48,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:41:48,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112470828] [2021-08-27 10:41:48,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112470828] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:41:48,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:41:48,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-27 10:41:48,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070935992] [2021-08-27 10:41:48,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:41:48,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:41:48,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:41:48,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:41:48,295 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2021-08-27 10:41:48,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:41:48,331 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2021-08-27 10:41:48,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:41:48,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2021-08-27 10:41:48,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:41:48,333 INFO L225 Difference]: With dead ends: 50 [2021-08-27 10:41:48,336 INFO L226 Difference]: Without dead ends: 48 [2021-08-27 10:41:48,337 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:41:48,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-08-27 10:41:48,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 39. [2021-08-27 10:41:48,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 38 states have internal predecessors, (50), 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) [2021-08-27 10:41:48,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2021-08-27 10:41:48,345 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 5 [2021-08-27 10:41:48,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:41:48,346 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2021-08-27 10:41:48,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2021-08-27 10:41:48,346 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2021-08-27 10:41:48,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-27 10:41:48,347 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:41:48,347 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-27 10:41:48,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-27 10:41:48,348 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-27 10:41:48,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:41:48,349 INFO L82 PathProgramCache]: Analyzing trace with hash 925771278, now seen corresponding path program 1 times [2021-08-27 10:41:48,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:41:48,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353380954] [2021-08-27 10:41:48,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:41:48,355 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:41:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:41:48,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:41:48,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:41:48,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353380954] [2021-08-27 10:41:48,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353380954] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:41:48,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:41:48,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 10:41:48,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479344876] [2021-08-27 10:41:48,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:41:48,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:41:48,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:41:48,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:41:48,378 INFO L87 Difference]: Start difference. First operand 39 states and 50 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) [2021-08-27 10:41:48,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:41:48,394 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2021-08-27 10:41:48,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:41:48,394 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 [2021-08-27 10:41:48,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:41:48,394 INFO L225 Difference]: With dead ends: 39 [2021-08-27 10:41:48,395 INFO L226 Difference]: Without dead ends: 37 [2021-08-27 10:41:48,395 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:41:48,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-08-27 10:41:48,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-08-27 10:41:48,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 36 states have internal predecessors, (47), 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) [2021-08-27 10:41:48,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2021-08-27 10:41:48,398 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 6 [2021-08-27 10:41:48,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:41:48,398 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2021-08-27 10:41:48,398 INFO L471 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) [2021-08-27 10:41:48,398 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2021-08-27 10:41:48,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-27 10:41:48,399 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:41:48,399 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-27 10:41:48,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-27 10:41:48,399 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-27 10:41:48,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:41:48,399 INFO L82 PathProgramCache]: Analyzing trace with hash 925777236, now seen corresponding path program 1 times [2021-08-27 10:41:48,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:41:48,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031508884] [2021-08-27 10:41:48,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:41:48,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:41:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:41:48,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:41:48,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:41:48,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031508884] [2021-08-27 10:41:48,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031508884] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:41:48,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:41:48,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 10:41:48,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617271153] [2021-08-27 10:41:48,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:41:48,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:41:48,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:41:48,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:41:48,416 INFO L87 Difference]: Start difference. First operand 37 states and 47 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) [2021-08-27 10:41:48,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:41:48,431 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2021-08-27 10:41:48,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:41:48,432 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 [2021-08-27 10:41:48,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:41:48,432 INFO L225 Difference]: With dead ends: 37 [2021-08-27 10:41:48,432 INFO L226 Difference]: Without dead ends: 35 [2021-08-27 10:41:48,432 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:41:48,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-08-27 10:41:48,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-08-27 10:41:48,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 34 states have internal predecessors, (44), 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) [2021-08-27 10:41:48,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2021-08-27 10:41:48,435 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 6 [2021-08-27 10:41:48,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:41:48,435 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2021-08-27 10:41:48,435 INFO L471 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) [2021-08-27 10:41:48,436 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2021-08-27 10:41:48,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-27 10:41:48,436 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:41:48,436 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 10:41:48,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-27 10:41:48,436 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-27 10:41:48,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:41:48,437 INFO L82 PathProgramCache]: Analyzing trace with hash 149003441, now seen corresponding path program 1 times [2021-08-27 10:41:48,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:41:48,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605855285] [2021-08-27 10:41:48,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:41:48,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:41:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:41:48,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:41:48,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:41:48,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605855285] [2021-08-27 10:41:48,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605855285] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:41:48,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:41:48,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 10:41:48,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66558511] [2021-08-27 10:41:48,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 10:41:48,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:41:48,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 10:41:48,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 10:41:48,464 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:41:48,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:41:48,492 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2021-08-27 10:41:48,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:41:48,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-27 10:41:48,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:41:48,492 INFO L225 Difference]: With dead ends: 35 [2021-08-27 10:41:48,492 INFO L226 Difference]: Without dead ends: 0 [2021-08-27 10:41:48,493 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 10:41:48,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-27 10:41:48,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-27 10:41:48,493 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) [2021-08-27 10:41:48,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 10:41:48,493 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-08-27 10:41:48,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:41:48,493 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 10:41:48,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:41:48,493 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-27 10:41:48,493 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-27 10:41:48,495 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:41:48,495 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:41:48,496 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:41:48,496 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:41:48,496 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:41:48,496 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:41:48,496 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:41:48,496 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:41:48,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-27 10:41:48,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-27 10:41:48,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 10:41:48,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 10:41:48,514 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-08-27 10:41:48,514 INFO L857 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-08-27 10:41:48,514 INFO L857 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-08-27 10:41:48,514 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-08-27 10:41:48,514 INFO L857 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-08-27 10:41:48,514 INFO L857 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2021-08-27 10:41:48,515 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-08-27 10:41:48,515 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-27 10:41:48,515 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-08-27 10:41:48,515 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-27 10:41:48,515 INFO L857 garLoopResultBuilder]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2021-08-27 10:41:48,515 INFO L860 garLoopResultBuilder]: At program point L41(lines 19 42) the Hoare annotation is: true [2021-08-27 10:41:48,515 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-08-27 10:41:48,516 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-08-27 10:41:48,516 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-27 10:41:48,516 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2021-08-27 10:41:48,516 INFO L857 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-08-27 10:41:48,516 INFO L857 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-08-27 10:41:48,516 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-08-27 10:41:48,518 INFO L857 garLoopResultBuilder]: For program point L25(lines 25 39) no Hoare annotation was computed. [2021-08-27 10:41:48,518 INFO L853 garLoopResultBuilder]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~y~0 2147483647) (<= ULTIMATE.start_main_~x~0 2147483648)) [2021-08-27 10:41:48,518 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-08-27 10:41:48,519 INFO L857 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2021-08-27 10:41:48,521 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-08-27 10:41:48,522 INFO L857 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-08-27 10:41:48,522 INFO L857 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-08-27 10:41:48,522 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-08-27 10:41:48,525 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 10:41:48,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 10:41:48 BoogieIcfgContainer [2021-08-27 10:41:48,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 10:41:48,539 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 10:41:48,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 10:41:48,539 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 10:41:48,540 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:41:47" (3/4) ... [2021-08-27 10:41:48,542 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-27 10:41:48,549 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-08-27 10:41:48,549 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-27 10:41:48,585 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 10:41:48,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 10:41:48,587 INFO L168 Benchmark]: Toolchain (without parser) took 1148.19 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 50.7 MB in the beginning and 38.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. [2021-08-27 10:41:48,587 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 67.1 MB. Free memory is still 49.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 10:41:48,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 124.43 ms. Allocated memory is still 67.1 MB. Free memory was 50.5 MB in the beginning and 41.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 10:41:48,588 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.05 ms. Allocated memory is still 67.1 MB. Free memory was 41.9 MB in the beginning and 40.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 10:41:48,588 INFO L168 Benchmark]: Boogie Preprocessor took 29.12 ms. Allocated memory is still 67.1 MB. Free memory was 40.5 MB in the beginning and 51.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 10:41:48,588 INFO L168 Benchmark]: RCFGBuilder took 262.35 ms. Allocated memory is still 67.1 MB. Free memory was 51.4 MB in the beginning and 40.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 10:41:48,589 INFO L168 Benchmark]: TraceAbstraction took 654.69 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 39.6 MB in the beginning and 41.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2021-08-27 10:41:48,589 INFO L168 Benchmark]: Witness Printer took 46.50 ms. Allocated memory is still 86.0 MB. Free memory was 41.4 MB in the beginning and 38.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 10:41:48,590 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 67.1 MB. Free memory is still 49.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 124.43 ms. Allocated memory is still 67.1 MB. Free memory was 50.5 MB in the beginning and 41.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 23.05 ms. Allocated memory is still 67.1 MB. Free memory was 41.9 MB in the beginning and 40.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.12 ms. Allocated memory is still 67.1 MB. Free memory was 40.5 MB in the beginning and 51.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 262.35 ms. Allocated memory is still 67.1 MB. Free memory was 51.4 MB in the beginning and 40.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 654.69 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 39.6 MB in the beginning and 41.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * Witness Printer took 46.50 ms. Allocated memory is still 86.0 MB. Free memory was 41.4 MB in the beginning and 38.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: 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, 27 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 591.0ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 7.7ms, AutomataDifference: 232.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 16.8ms, InitialAbstractionConstructionTime: 6.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 65 SDtfs, 85 SDslu, 23 SDs, 0 SdLazy, 89 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 118.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 31.2ms AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 9.2ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 5.7ms SsaConstructionTime, 31.1ms SatisfiabilityAnalysisTime, 119.8ms InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3/3 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 8 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: y <= 2147483647 && x <= 2147483648 RESULT: Ultimate proved your program to be correct! [2021-08-27 10:41:48,619 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...