./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/aaron3-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5fbdf5bf 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/aaron3-2.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 3d90e09f5aa9d4fc1e26aca666a490bdfa0e1d07 ............................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 22:07:30,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 22:07:30,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 22:07:30,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 22:07:30,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 22:07:30,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 22:07:30,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 22:07:30,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 22:07:30,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 22:07:30,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 22:07:30,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 22:07:30,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 22:07:30,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 22:07:30,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 22:07:30,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 22:07:30,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 22:07:30,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 22:07:30,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 22:07:30,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 22:07:30,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 22:07:30,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 22:07:30,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 22:07:30,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 22:07:30,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 22:07:30,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 22:07:30,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 22:07:30,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 22:07:30,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 22:07:30,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 22:07:30,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 22:07:30,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 22:07:30,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 22:07:30,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 22:07:30,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 22:07:30,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 22:07:30,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 22:07:30,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 22:07:30,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 22:07:30,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 22:07:30,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 22:07:30,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 22:07:30,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-08-30 22:07:30,580 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 22:07:30,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 22:07:30,581 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 22:07:30,581 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 22:07:30,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 22:07:30,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 22:07:30,582 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 22:07:30,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 22:07:30,582 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 22:07:30,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 22:07:30,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 22:07:30,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-30 22:07:30,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 22:07:30,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-30 22:07:30,583 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-30 22:07:30,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-30 22:07:30,583 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 22:07:30,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-30 22:07:30,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 22:07:30,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 22:07:30,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 22:07:30,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:07:30,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 22:07:30,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 22:07:30,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-30 22:07:30,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 22:07:30,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 22:07:30,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-30 22:07:30,592 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 22:07:30,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d90e09f5aa9d4fc1e26aca666a490bdfa0e1d07 [2021-08-30 22:07:30,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 22:07:30,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 22:07:30,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 22:07:30,948 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 22:07:30,949 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 22:07:30,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/aaron3-2.c [2021-08-30 22:07:30,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/463879438/10b19a51e3ba44369480c9dab8157a72/FLAG62e83f15e [2021-08-30 22:07:31,308 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 22:07:31,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/aaron3-2.c [2021-08-30 22:07:31,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/463879438/10b19a51e3ba44369480c9dab8157a72/FLAG62e83f15e [2021-08-30 22:07:31,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/463879438/10b19a51e3ba44369480c9dab8157a72 [2021-08-30 22:07:31,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 22:07:31,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-30 22:07:31,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 22:07:31,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 22:07:31,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 22:07:31,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:07:31" (1/1) ... [2021-08-30 22:07:31,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33613bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:31, skipping insertion in model container [2021-08-30 22:07:31,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:07:31" (1/1) ... [2021-08-30 22:07:31,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 22:07:31,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 22:07:31,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:07:31,834 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 22:07:31,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:07:31,849 INFO L208 MainTranslator]: Completed translation [2021-08-30 22:07:31,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:31 WrapperNode [2021-08-30 22:07:31,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 22:07:31,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-30 22:07:31,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-30 22:07:31,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-30 22:07:31,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:31" (1/1) ... [2021-08-30 22:07:31,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:31" (1/1) ... [2021-08-30 22:07:31,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-30 22:07:31,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 22:07:31,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 22:07:31,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 22:07:31,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:31" (1/1) ... [2021-08-30 22:07:31,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:31" (1/1) ... [2021-08-30 22:07:31,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:31" (1/1) ... [2021-08-30 22:07:31,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:31" (1/1) ... [2021-08-30 22:07:31,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:31" (1/1) ... [2021-08-30 22:07:31,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:31" (1/1) ... [2021-08-30 22:07:31,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:31" (1/1) ... [2021-08-30 22:07:31,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 22:07:31,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 22:07:31,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 22:07:31,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 22:07:31,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:31" (1/1) ... [2021-08-30 22:07:31,933 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:07:31,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:07:31,946 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) [2021-08-30 22:07:31,964 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 [2021-08-30 22:07:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 22:07:31,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 22:07:32,083 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 22:07:32,084 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-30 22:07:32,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:07:32 BoogieIcfgContainer [2021-08-30 22:07:32,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 22:07:32,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 22:07:32,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 22:07:32,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 22:07:32,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:07:31" (1/3) ... [2021-08-30 22:07:32,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508f560f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:07:32, skipping insertion in model container [2021-08-30 22:07:32,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:31" (2/3) ... [2021-08-30 22:07:32,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508f560f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:07:32, skipping insertion in model container [2021-08-30 22:07:32,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:07:32" (3/3) ... [2021-08-30 22:07:32,092 INFO L111 eAbstractionObserver]: Analyzing ICFG aaron3-2.c [2021-08-30 22:07:32,095 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 22:07:32,096 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-08-30 22:07:32,130 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 22:07:32,136 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 [2021-08-30 22:07:32,137 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-30 22:07:32,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 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) [2021-08-30 22:07:32,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-30 22:07:32,151 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:07:32,152 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-30 22:07:32,153 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-08-30 22:07:32,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:07:32,157 INFO L82 PathProgramCache]: Analyzing trace with hash 959367, now seen corresponding path program 1 times [2021-08-30 22:07:32,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:07:32,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538233546] [2021-08-30 22:07:32,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:07:32,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:07:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 22:07:32,223 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-30 22:07:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 22:07:32,248 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-30 22:07:32,256 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-30 22:07:32,257 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2021-08-30 22:07:32,258 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2021-08-30 22:07:32,258 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2021-08-30 22:07:32,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2021-08-30 22:07:32,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2021-08-30 22:07:32,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2021-08-30 22:07:32,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 22:07:32,265 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 22:07:32,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:07:32 BoogieIcfgContainer [2021-08-30 22:07:32,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 22:07:32,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 22:07:32,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 22:07:32,283 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 22:07:32,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:07:32" (3/4) ... [2021-08-30 22:07:32,285 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-30 22:07:32,307 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-30 22:07:32,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 22:07:32,309 INFO L158 Benchmark]: Toolchain (without parser) took 562.08ms. Allocated memory was 58.7MB in the beginning and 79.7MB in the end (delta: 21.0MB). Free memory was 37.9MB in the beginning and 60.6MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:07:32,309 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:07:32,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 102.27ms. Allocated memory is still 58.7MB. Free memory was 37.7MB in the beginning and 29.2MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-30 22:07:32,313 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.87ms. Allocated memory is still 58.7MB. Free memory was 29.2MB in the beginning and 27.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:07:32,313 INFO L158 Benchmark]: Boogie Preprocessor took 58.67ms. Allocated memory was 58.7MB in the beginning and 79.7MB in the end (delta: 21.0MB). Free memory was 27.8MB in the beginning and 63.3MB in the end (delta: -35.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-30 22:07:32,313 INFO L158 Benchmark]: RCFGBuilder took 160.26ms. Allocated memory is still 79.7MB. Free memory was 63.3MB in the beginning and 55.3MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-30 22:07:32,313 INFO L158 Benchmark]: TraceAbstraction took 192.96ms. Allocated memory is still 79.7MB. Free memory was 54.8MB in the beginning and 62.3MB in the end (delta: -7.6MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2021-08-30 22:07:32,314 INFO L158 Benchmark]: Witness Printer took 25.26ms. Allocated memory is still 79.7MB. Free memory was 62.3MB in the beginning and 60.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:07:32,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 102.27ms. Allocated memory is still 58.7MB. Free memory was 37.7MB in the beginning and 29.2MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 15.87ms. Allocated memory is still 58.7MB. Free memory was 29.2MB in the beginning and 27.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.67ms. Allocated memory was 58.7MB in the beginning and 79.7MB in the end (delta: 21.0MB). Free memory was 27.8MB in the beginning and 63.3MB in the end (delta: -35.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 160.26ms. Allocated memory is still 79.7MB. Free memory was 63.3MB in the beginning and 55.3MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 192.96ms. Allocated memory is still 79.7MB. Free memory was 54.8MB in the beginning and 62.3MB in the end (delta: -7.6MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 25.26ms. Allocated memory is still 79.7MB. Free memory was 62.3MB in the beginning and 60.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 21]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int x, y, z, tx; [L17] x = __VERIFIER_nondet_int() [L18] y = __VERIFIER_nondet_int() [L19] z = __VERIFIER_nondet_int() [L20] tx = __VERIFIER_nondet_int() [L21] x >= y && x <= tx + z [L21] tx + z - UnprovableResult [Line: 21]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 134.66ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 7.23ms, AutomataDifference: 0.00ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 7.21ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.21ms SsaConstructionTime, 17.33ms SatisfiabilityAnalysisTime, 0.00ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-30 22:07:32,346 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...