./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig8-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a31fd051 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-memory-alloca/NoriSharma-2013FSE-Fig8-alloca-2.i -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 426ef1f4309d9dc2735a49adbb003bde9d9b1a56bbe25c12fae7f655f97fb3a3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 14:03:46,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 14:03:46,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 14:03:46,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 14:03:46,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 14:03:46,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 14:03:46,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 14:03:46,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 14:03:46,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 14:03:46,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 14:03:46,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 14:03:46,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 14:03:46,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 14:03:46,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 14:03:46,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 14:03:46,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 14:03:46,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 14:03:46,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 14:03:46,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 14:03:46,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 14:03:46,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 14:03:46,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 14:03:46,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 14:03:46,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 14:03:46,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 14:03:46,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 14:03:46,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 14:03:46,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 14:03:46,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 14:03:46,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 14:03:46,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 14:03:46,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 14:03:46,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 14:03:46,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 14:03:46,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 14:03:46,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 14:03:46,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 14:03:46,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 14:03:46,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 14:03:46,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 14:03:46,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 14:03:46,229 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 14:03:46,257 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 14:03:46,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 14:03:46,257 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 14:03:46,257 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 14:03:46,258 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 14:03:46,258 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 14:03:46,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 14:03:46,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 14:03:46,259 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 14:03:46,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 14:03:46,260 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 14:03:46,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 14:03:46,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 14:03:46,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 14:03:46,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 14:03:46,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 14:03:46,260 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 14:03:46,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 14:03:46,261 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 14:03:46,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 14:03:46,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 14:03:46,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 14:03:46,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 14:03:46,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 14:03:46,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 14:03:46,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 14:03:46,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 14:03:46,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 14:03:46,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 14:03:46,262 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 14:03:46,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 14:03:46,263 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 14:03:46,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 14:03:46,263 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 14:03:46,263 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 426ef1f4309d9dc2735a49adbb003bde9d9b1a56bbe25c12fae7f655f97fb3a3 [2023-02-15 14:03:46,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 14:03:46,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 14:03:46,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 14:03:46,458 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 14:03:46,459 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 14:03:46,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig8-alloca-2.i [2023-02-15 14:03:47,405 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 14:03:47,568 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 14:03:47,570 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig8-alloca-2.i [2023-02-15 14:03:47,577 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84c40d91/1ca1ebdb88304a3fb6a155064bcc36bb/FLAGa117d6924 [2023-02-15 14:03:47,969 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84c40d91/1ca1ebdb88304a3fb6a155064bcc36bb [2023-02-15 14:03:47,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 14:03:47,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 14:03:47,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 14:03:47,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 14:03:47,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 14:03:47,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:03:47" (1/1) ... [2023-02-15 14:03:47,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1198bb00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:03:47, skipping insertion in model container [2023-02-15 14:03:47,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:03:47" (1/1) ... [2023-02-15 14:03:47,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 14:03:48,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 14:03:48,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:03:48,165 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 14:03:48,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:03:48,224 INFO L208 MainTranslator]: Completed translation [2023-02-15 14:03:48,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:03:48 WrapperNode [2023-02-15 14:03:48,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 14:03:48,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 14:03:48,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 14:03:48,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 14:03:48,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:03:48" (1/1) ... [2023-02-15 14:03:48,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:03:48" (1/1) ... [2023-02-15 14:03:48,259 INFO L138 Inliner]: procedures = 110, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 88 [2023-02-15 14:03:48,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 14:03:48,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 14:03:48,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 14:03:48,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 14:03:48,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:03:48" (1/1) ... [2023-02-15 14:03:48,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:03:48" (1/1) ... [2023-02-15 14:03:48,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:03:48" (1/1) ... [2023-02-15 14:03:48,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:03:48" (1/1) ... [2023-02-15 14:03:48,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:03:48" (1/1) ... [2023-02-15 14:03:48,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:03:48" (1/1) ... [2023-02-15 14:03:48,274 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:03:48" (1/1) ... [2023-02-15 14:03:48,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:03:48" (1/1) ... [2023-02-15 14:03:48,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 14:03:48,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 14:03:48,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 14:03:48,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 14:03:48,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:03:48" (1/1) ... [2023-02-15 14:03:48,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 14:03:48,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:48,308 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) [2023-02-15 14:03:48,313 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 [2023-02-15 14:03:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 14:03:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 14:03:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-15 14:03:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-15 14:03:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 14:03:48,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 14:03:48,423 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 14:03:48,424 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 14:03:48,579 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 14:03:48,583 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 14:03:48,583 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 14:03:48,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:03:48 BoogieIcfgContainer [2023-02-15 14:03:48,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 14:03:48,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 14:03:48,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 14:03:48,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 14:03:48,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:03:47" (1/3) ... [2023-02-15 14:03:48,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bea8496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:03:48, skipping insertion in model container [2023-02-15 14:03:48,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:03:48" (2/3) ... [2023-02-15 14:03:48,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bea8496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:03:48, skipping insertion in model container [2023-02-15 14:03:48,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:03:48" (3/3) ... [2023-02-15 14:03:48,597 INFO L112 eAbstractionObserver]: Analyzing ICFG NoriSharma-2013FSE-Fig8-alloca-2.i [2023-02-15 14:03:48,616 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 14:03:48,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-15 14:03:48,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 14:03:48,654 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2c9141aa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 14:03:48,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-15 14:03:48,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.6875) internal successors, (27), 24 states have internal predecessors, (27), 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) [2023-02-15 14:03:48,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 14:03:48,660 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:48,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 14:03:48,661 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:03:48,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:48,664 INFO L85 PathProgramCache]: Analyzing trace with hash 28695845, now seen corresponding path program 1 times [2023-02-15 14:03:48,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:48,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655259837] [2023-02-15 14:03:48,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:48,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:49,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:49,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:49,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655259837] [2023-02-15 14:03:49,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655259837] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:03:49,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:03:49,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:03:49,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738433261] [2023-02-15 14:03:49,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:03:49,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:03:49,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:49,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:03:49,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:03:49,859 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.6875) internal successors, (27), 24 states have internal predecessors, (27), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2023-02-15 14:03:49,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:49,905 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2023-02-15 14:03:49,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 14:03:49,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 [2023-02-15 14:03:49,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:49,913 INFO L225 Difference]: With dead ends: 39 [2023-02-15 14:03:49,913 INFO L226 Difference]: Without dead ends: 25 [2023-02-15 14:03:49,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 14:03:49,919 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 7 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:49,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 58 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:03:49,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-15 14:03:49,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-02-15 14:03:49,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 24 states have internal predecessors, (26), 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) [2023-02-15 14:03:49,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2023-02-15 14:03:49,944 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 5 [2023-02-15 14:03:49,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:49,945 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2023-02-15 14:03:49,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2023-02-15 14:03:49,945 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2023-02-15 14:03:49,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 14:03:49,946 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:49,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:49,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 14:03:49,947 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:03:49,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:49,949 INFO L85 PathProgramCache]: Analyzing trace with hash 179472267, now seen corresponding path program 1 times [2023-02-15 14:03:49,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:49,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582585358] [2023-02-15 14:03:49,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:49,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:50,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:50,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:50,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582585358] [2023-02-15 14:03:50,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582585358] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:03:50,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:03:50,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:03:50,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705127703] [2023-02-15 14:03:50,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:03:50,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:03:50,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:50,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:03:50,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:03:50,388 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:03:50,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:50,414 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2023-02-15 14:03:50,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 14:03:50,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 14:03:50,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:50,416 INFO L225 Difference]: With dead ends: 25 [2023-02-15 14:03:50,416 INFO L226 Difference]: Without dead ends: 24 [2023-02-15 14:03:50,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:03:50,420 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:50,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 41 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:03:50,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-15 14:03:50,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-02-15 14:03:50,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 23 states have internal predecessors, (25), 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) [2023-02-15 14:03:50,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2023-02-15 14:03:50,427 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 8 [2023-02-15 14:03:50,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:50,427 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2023-02-15 14:03:50,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:03:50,427 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2023-02-15 14:03:50,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 14:03:50,429 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:50,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:50,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 14:03:50,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:03:50,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:50,434 INFO L85 PathProgramCache]: Analyzing trace with hash 179472587, now seen corresponding path program 1 times [2023-02-15 14:03:50,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:50,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070881804] [2023-02-15 14:03:50,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:50,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:04:10,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:10,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:04:10,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070881804] [2023-02-15 14:04:10,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070881804] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:04:10,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:04:10,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 14:04:10,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732091724] [2023-02-15 14:04:10,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:04:10,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 14:04:10,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:04:10,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 14:04:10,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-15 14:04:10,390 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:04:10,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:04:10,542 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2023-02-15 14:04:10,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 14:04:10,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 14:04:10,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:04:10,543 INFO L225 Difference]: With dead ends: 38 [2023-02-15 14:04:10,543 INFO L226 Difference]: Without dead ends: 37 [2023-02-15 14:04:10,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-02-15 14:04:10,544 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:04:10,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 57 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:04:10,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-15 14:04:10,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2023-02-15 14:04:10,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 25 states have internal predecessors, (28), 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) [2023-02-15 14:04:10,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2023-02-15 14:04:10,547 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 8 [2023-02-15 14:04:10,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:04:10,548 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2023-02-15 14:04:10,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:04:10,548 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2023-02-15 14:04:10,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 14:04:10,548 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:04:10,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:04:10,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 14:04:10,548 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:04:10,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:04:10,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1268673034, now seen corresponding path program 1 times [2023-02-15 14:04:10,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:04:10,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139159066] [2023-02-15 14:04:10,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:04:10,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:04:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:04:58,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:58,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:04:58,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139159066] [2023-02-15 14:04:58,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139159066] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:04:58,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:04:58,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 14:04:58,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874656121] [2023-02-15 14:04:58,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:04:58,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 14:04:58,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:04:58,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 14:04:58,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 14:04:58,290 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:04:58,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:04:58,335 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2023-02-15 14:04:58,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 14:04:58,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-15 14:04:58,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:04:58,336 INFO L225 Difference]: With dead ends: 26 [2023-02-15 14:04:58,337 INFO L226 Difference]: Without dead ends: 25 [2023-02-15 14:04:58,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-15 14:04:58,344 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:04:58,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 32 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:04:58,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-15 14:04:58,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-02-15 14:04:58,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 24 states have internal predecessors, (27), 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) [2023-02-15 14:04:58,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-02-15 14:04:58,350 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 9 [2023-02-15 14:04:58,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:04:58,351 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-02-15 14:04:58,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:04:58,351 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2023-02-15 14:04:58,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 14:04:58,351 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:04:58,351 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:04:58,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 14:04:58,352 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:04:58,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:04:58,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1268682964, now seen corresponding path program 1 times [2023-02-15 14:04:58,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:04:58,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684304886] [2023-02-15 14:04:58,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:04:58,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:04:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:04:58,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:04:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:04:58,694 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:04:58,694 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 14:04:58,695 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-02-15 14:04:58,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-02-15 14:04:58,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-02-15 14:04:58,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-02-15 14:04:58,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-02-15 14:04:58,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-02-15 14:04:58,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-02-15 14:04:58,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-02-15 14:04:58,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 14:04:58,700 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-02-15 14:04:58,702 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 14:04:58,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 02:04:58 BoogieIcfgContainer [2023-02-15 14:04:58,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 14:04:58,733 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 14:04:58,733 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 14:04:58,734 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 14:04:58,734 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:03:48" (3/4) ... [2023-02-15 14:04:58,735 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-15 14:04:58,758 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 14:04:58,758 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 14:04:58,759 INFO L158 Benchmark]: Toolchain (without parser) took 70787.22ms. Allocated memory was 151.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 112.9MB in the beginning and 573.9MB in the end (delta: -460.9MB). Peak memory consumption was 835.6MB. Max. memory is 16.1GB. [2023-02-15 14:04:58,759 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 113.2MB. Free memory is still 63.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:04:58,759 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.03ms. Allocated memory is still 151.0MB. Free memory was 112.4MB in the beginning and 96.7MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-15 14:04:58,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.11ms. Allocated memory is still 151.0MB. Free memory was 96.7MB in the beginning and 95.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:04:58,760 INFO L158 Benchmark]: Boogie Preprocessor took 24.26ms. Allocated memory is still 151.0MB. Free memory was 95.1MB in the beginning and 93.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:04:58,760 INFO L158 Benchmark]: RCFGBuilder took 299.42ms. Allocated memory is still 151.0MB. Free memory was 93.5MB in the beginning and 78.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-15 14:04:58,760 INFO L158 Benchmark]: TraceAbstraction took 70139.80ms. Allocated memory was 151.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 77.8MB in the beginning and 577.0MB in the end (delta: -499.2MB). Peak memory consumption was 800.0MB. Max. memory is 16.1GB. [2023-02-15 14:04:58,760 INFO L158 Benchmark]: Witness Printer took 25.00ms. Allocated memory is still 1.4GB. Free memory was 577.0MB in the beginning and 573.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:04:58,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 113.2MB. Free memory is still 63.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.03ms. Allocated memory is still 151.0MB. Free memory was 112.4MB in the beginning and 96.7MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.11ms. Allocated memory is still 151.0MB. Free memory was 96.7MB in the beginning and 95.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.26ms. Allocated memory is still 151.0MB. Free memory was 95.1MB in the beginning and 93.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 299.42ms. Allocated memory is still 151.0MB. Free memory was 93.5MB in the beginning and 78.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 70139.80ms. Allocated memory was 151.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 77.8MB in the beginning and 577.0MB in the end (delta: -499.2MB). Peak memory consumption was 800.0MB. Max. memory is 16.1GB. * Witness Printer took 25.00ms. Allocated memory is still 1.4GB. Free memory was 577.0MB in the beginning and 573.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 568]: integer overflow possible integer overflow possible We found a FailurePath: [L548] int* u = __builtin_alloca (sizeof(int)); [L549] int* x = __builtin_alloca (sizeof(int)); [L550] int* v = __builtin_alloca (sizeof(int)); [L551] int* y = __builtin_alloca (sizeof(int)); [L552] int* w = __builtin_alloca (sizeof(int)); [L553] int* z = __builtin_alloca (sizeof(int)); [L554] int* c = __builtin_alloca (sizeof(int)); [L555] *x = __VERIFIER_nondet_int() [L556] *y = __VERIFIER_nondet_int() [L557] *z = __VERIFIER_nondet_int() [L558] EXPR \read(*x) [L558] *u = *x [L559] EXPR \read(*y) [L559] *v = *y [L560] EXPR \read(*z) [L560] *w = *z [L561] *c = 0 VAL [__builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, c={3:0}, u={8:0}, v={2:0}, w={6:0}, x={9:0}, y={7:0}, z={5:0}] [L562] EXPR \read(*x) [L562] EXPR \read(*y) VAL [\read(*x)=2147483647, \read(*y)=2147483647, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, c={3:0}, u={8:0}, v={2:0}, w={6:0}, x={9:0}, y={7:0}, z={5:0}] [L562] COND TRUE *x >= *y [L563] EXPR \read(*c) VAL [\read(*c)=0, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, c={3:0}, u={8:0}, v={2:0}, w={6:0}, x={9:0}, y={7:0}, z={5:0}] [L563] EXPR *c + 1 [L563] *c = *c + 1 [L564] EXPR \read(*z) VAL [\read(*z)=0, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, c={3:0}, u={8:0}, v={2:0}, w={6:0}, x={9:0}, y={7:0}, z={5:0}] [L564] COND FALSE !(*z > 1) [L568] EXPR \read(*y) VAL [\read(*y)=2147483647, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, c={3:0}, u={8:0}, v={2:0}, w={6:0}, x={9:0}, y={7:0}, z={5:0}] [L568] *y + 1 VAL [\read(*y)=2147483647, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, c={3:0}, u={8:0}, v={2:0}, w={6:0}, x={9:0}, y={7:0}, z={5:0}] - UnprovableResult [Line: 563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 565]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 565]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 566]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 566]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 568]: 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, 25 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 70.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 188 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 60 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=3, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 67.8s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 249 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2023-02-15 14:04:58,777 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)