./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig7-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e 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-Fig7-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 23dd20104e52996ac875d0559143ce4f366abd3f5073fa9f75cda1ab0a7a927f --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 09:29:18,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 09:29:18,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 09:29:18,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 09:29:18,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 09:29:18,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 09:29:18,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 09:29:18,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 09:29:18,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 09:29:18,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 09:29:18,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 09:29:18,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 09:29:18,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 09:29:18,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 09:29:18,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 09:29:18,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 09:29:18,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 09:29:18,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 09:29:18,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 09:29:18,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 09:29:18,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 09:29:18,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 09:29:18,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 09:29:18,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 09:29:18,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 09:29:18,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 09:29:18,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 09:29:18,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 09:29:18,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 09:29:18,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 09:29:18,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 09:29:18,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 09:29:18,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 09:29:18,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 09:29:18,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 09:29:18,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 09:29:18,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 09:29:18,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 09:29:18,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 09:29:18,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 09:29:18,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 09:29:18,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-17 09:29:18,395 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 09:29:18,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 09:29:18,395 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 09:29:18,395 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 09:29:18,396 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 09:29:18,396 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 09:29:18,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 09:29:18,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 09:29:18,397 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 09:29:18,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 09:29:18,397 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 09:29:18,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 09:29:18,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 09:29:18,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 09:29:18,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 09:29:18,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 09:29:18,398 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-17 09:29:18,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 09:29:18,398 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 09:29:18,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 09:29:18,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 09:29:18,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 09:29:18,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 09:29:18,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 09:29:18,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 09:29:18,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 09:29:18,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 09:29:18,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 09:29:18,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 09:29:18,400 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 09:29:18,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 09:29:18,400 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 09:29:18,401 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 09:29:18,401 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 09:29:18,401 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23dd20104e52996ac875d0559143ce4f366abd3f5073fa9f75cda1ab0a7a927f [2023-02-17 09:29:18,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 09:29:18,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 09:29:18,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 09:29:18,559 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 09:29:18,560 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 09:29:18,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig7-alloca-2.i [2023-02-17 09:29:19,444 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 09:29:19,633 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 09:29:19,633 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig7-alloca-2.i [2023-02-17 09:29:19,642 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00a1131fb/5619f6bbc37740449072f2fada371072/FLAG3f84b9f98 [2023-02-17 09:29:19,653 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00a1131fb/5619f6bbc37740449072f2fada371072 [2023-02-17 09:29:19,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 09:29:19,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 09:29:19,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 09:29:19,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 09:29:19,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 09:29:19,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:29:19" (1/1) ... [2023-02-17 09:29:19,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@394d96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:29:19, skipping insertion in model container [2023-02-17 09:29:19,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:29:19" (1/1) ... [2023-02-17 09:29:19,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 09:29:19,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 09:29:19,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:29:19,837 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 09:29:19,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:29:19,875 INFO L208 MainTranslator]: Completed translation [2023-02-17 09:29:19,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:29:19 WrapperNode [2023-02-17 09:29:19,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 09:29:19,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 09:29:19,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 09:29:19,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 09:29:19,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:29:19" (1/1) ... [2023-02-17 09:29:19,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:29:19" (1/1) ... [2023-02-17 09:29:19,914 INFO L138 Inliner]: procedures = 110, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 88 [2023-02-17 09:29:19,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 09:29:19,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 09:29:19,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 09:29:19,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 09:29:19,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:29:19" (1/1) ... [2023-02-17 09:29:19,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:29:19" (1/1) ... [2023-02-17 09:29:19,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:29:19" (1/1) ... [2023-02-17 09:29:19,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:29:19" (1/1) ... [2023-02-17 09:29:19,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:29:19" (1/1) ... [2023-02-17 09:29:19,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:29:19" (1/1) ... [2023-02-17 09:29:19,942 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:29:19" (1/1) ... [2023-02-17 09:29:19,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:29:19" (1/1) ... [2023-02-17 09:29:19,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 09:29:19,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 09:29:19,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 09:29:19,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 09:29:19,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:29:19" (1/1) ... [2023-02-17 09:29:19,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 09:29:19,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:29:19,985 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) [2023-02-17 09:29:19,990 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 [2023-02-17 09:29:20,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-17 09:29:20,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-17 09:29:20,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-17 09:29:20,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-17 09:29:20,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 09:29:20,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 09:29:20,078 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 09:29:20,079 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 09:29:20,236 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 09:29:20,240 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 09:29:20,240 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 09:29:20,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:29:20 BoogieIcfgContainer [2023-02-17 09:29:20,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 09:29:20,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 09:29:20,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 09:29:20,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 09:29:20,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 09:29:19" (1/3) ... [2023-02-17 09:29:20,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b8280b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 09:29:20, skipping insertion in model container [2023-02-17 09:29:20,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:29:19" (2/3) ... [2023-02-17 09:29:20,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b8280b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 09:29:20, skipping insertion in model container [2023-02-17 09:29:20,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:29:20" (3/3) ... [2023-02-17 09:29:20,248 INFO L112 eAbstractionObserver]: Analyzing ICFG NoriSharma-2013FSE-Fig7-alloca-2.i [2023-02-17 09:29:20,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 09:29:20,261 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-17 09:29:20,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 09:29:20,296 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;@372fe464, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 09:29:20,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-17 09:29:20,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 20 states have internal predecessors, (23), 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) [2023-02-17 09:29:20,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 09:29:20,304 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:29:20,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 09:29:20,305 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:29:20,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:29:20,309 INFO L85 PathProgramCache]: Analyzing trace with hash 889569447, now seen corresponding path program 1 times [2023-02-17 09:29:20,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:29:20,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749804310] [2023-02-17 09:29:20,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:29:20,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:29:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:28,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:29:28,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:29:28,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749804310] [2023-02-17 09:29:28,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749804310] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:29:28,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:29:28,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 09:29:28,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064473283] [2023-02-17 09:29:28,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:29:28,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 09:29:28,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:29:28,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 09:29:28,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-17 09:29:28,401 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 20 states have internal predecessors, (23), 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 6 states, 5 states have (on average 1.2) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:29:28,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:29:28,463 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2023-02-17 09:29:28,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 09:29:28,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-17 09:29:28,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:29:28,476 INFO L225 Difference]: With dead ends: 36 [2023-02-17 09:29:28,476 INFO L226 Difference]: Without dead ends: 23 [2023-02-17 09:29:28,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-02-17 09:29:28,483 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 36 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:29:28,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 51 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:29:28,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-17 09:29:28,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2023-02-17 09:29:28,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 20 states have internal predecessors, (23), 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) [2023-02-17 09:29:28,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2023-02-17 09:29:28,508 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 6 [2023-02-17 09:29:28,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:29:28,508 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-02-17 09:29:28,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:29:28,508 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-02-17 09:29:28,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-17 09:29:28,510 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:29:28,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:29:28,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 09:29:28,511 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:29:28,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:29:28,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849133, now seen corresponding path program 1 times [2023-02-17 09:29:28,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:29:28,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232015852] [2023-02-17 09:29:28,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:29:28,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:29:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:49,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:29:49,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:29:49,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232015852] [2023-02-17 09:29:49,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232015852] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:29:49,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:29:49,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 09:29:49,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112939701] [2023-02-17 09:29:49,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:29:49,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 09:29:49,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:29:49,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 09:29:49,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-17 09:29:49,430 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:29:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:29:49,469 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2023-02-17 09:29:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-17 09:29:49,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-17 09:29:49,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:29:49,470 INFO L225 Difference]: With dead ends: 28 [2023-02-17 09:29:49,470 INFO L226 Difference]: Without dead ends: 27 [2023-02-17 09:29:49,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-02-17 09:29:49,472 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 20 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:29:49,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 37 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:29:49,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-17 09:29:49,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2023-02-17 09:29:49,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 25 states have internal predecessors, (29), 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) [2023-02-17 09:29:49,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2023-02-17 09:29:49,475 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 7 [2023-02-17 09:29:49,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:29:49,476 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2023-02-17 09:29:49,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:29:49,476 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2023-02-17 09:29:49,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-17 09:29:49,476 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:29:49,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:29:49,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 09:29:49,477 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:29:49,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:29:49,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1806908715, now seen corresponding path program 1 times [2023-02-17 09:29:49,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:29:49,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170813599] [2023-02-17 09:29:49,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:29:49,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:29:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:29:49,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:29:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:29:49,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:29:49,924 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-17 09:29:49,924 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-02-17 09:29:49,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-02-17 09:29:49,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-02-17 09:29:49,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-02-17 09:29:49,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-02-17 09:29:49,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-02-17 09:29:49,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-17 09:29:49,929 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-02-17 09:29:49,931 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-17 09:29:49,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.02 09:29:49 BoogieIcfgContainer [2023-02-17 09:29:49,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-17 09:29:49,949 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 09:29:49,949 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 09:29:49,949 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 09:29:49,950 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:29:20" (3/4) ... [2023-02-17 09:29:49,951 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-17 09:29:49,974 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-17 09:29:49,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 09:29:49,974 INFO L158 Benchmark]: Toolchain (without parser) took 30318.53ms. Allocated memory was 172.0MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 131.6MB in the beginning and 547.6MB in the end (delta: -416.0MB). Peak memory consumption was 718.1MB. Max. memory is 16.1GB. [2023-02-17 09:29:49,975 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 172.0MB. Free memory is still 141.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 09:29:49,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.43ms. Allocated memory is still 172.0MB. Free memory was 131.6MB in the beginning and 115.7MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-17 09:29:49,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.37ms. Allocated memory is still 172.0MB. Free memory was 115.7MB in the beginning and 113.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 09:29:49,975 INFO L158 Benchmark]: Boogie Preprocessor took 32.16ms. Allocated memory is still 172.0MB. Free memory was 113.7MB in the beginning and 112.8MB in the end (delta: 988.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 09:29:49,976 INFO L158 Benchmark]: RCFGBuilder took 293.87ms. Allocated memory is still 172.0MB. Free memory was 112.8MB in the beginning and 98.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-17 09:29:49,976 INFO L158 Benchmark]: TraceAbstraction took 29705.29ms. Allocated memory was 172.0MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 97.0MB in the beginning and 549.7MB in the end (delta: -452.7MB). Peak memory consumption was 682.4MB. Max. memory is 16.1GB. [2023-02-17 09:29:49,976 INFO L158 Benchmark]: Witness Printer took 24.84ms. Allocated memory is still 1.3GB. Free memory was 549.7MB in the beginning and 547.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 09:29:49,978 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 172.0MB. Free memory is still 141.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.43ms. Allocated memory is still 172.0MB. Free memory was 131.6MB in the beginning and 115.7MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.37ms. Allocated memory is still 172.0MB. Free memory was 115.7MB in the beginning and 113.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.16ms. Allocated memory is still 172.0MB. Free memory was 113.7MB in the beginning and 112.8MB in the end (delta: 988.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 293.87ms. Allocated memory is still 172.0MB. Free memory was 112.8MB in the beginning and 98.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 29705.29ms. Allocated memory was 172.0MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 97.0MB in the beginning and 549.7MB in the end (delta: -452.7MB). Peak memory consumption was 682.4MB. Max. memory is 16.1GB. * Witness Printer took 24.84ms. Allocated memory is still 1.3GB. Free memory was 549.7MB in the beginning and 547.6MB in the end (delta: 2.1MB). 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: 563]: integer overflow possible integer overflow possible We found a FailurePath: [L548] int* a = __builtin_alloca (sizeof(int)); [L549] int* i = __builtin_alloca (sizeof(int)); [L550] int* b = __builtin_alloca (sizeof(int)); [L551] int* j = __builtin_alloca (sizeof(int)); [L552] int* c = __builtin_alloca (sizeof(int)); [L553] int* M = __builtin_alloca (sizeof(int)); [L554] int* N = __builtin_alloca (sizeof(int)); [L555] *i = __VERIFIER_nondet_int() [L556] *j = __VERIFIER_nondet_int() [L557] *M = __VERIFIER_nondet_int() [L558] *N = __VERIFIER_nondet_int() [L559] EXPR \read(*i) [L559] *a = *i [L560] EXPR \read(*j) [L560] *b = *j [L561] *c = 0 VAL [__builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, a={6:0}, b={5:0}, c={8:0}, i={7:0}, j={2:0}, M={3:0}, N={9:0}] [L562] EXPR \read(*i) [L562] EXPR \read(*M) [L562] *i < *M || *j < *N [L562] EXPR \read(*j) [L562] EXPR \read(*N) [L562] *i < *M || *j < *N VAL [*i < *M || *j < *N=1, \read(*i)=2147483647, \read(*j)=2147483646, \read(*M)=2147483646, \read(*N)=2147483647, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, a={6:0}, b={5:0}, c={8:0}, i={7:0}, j={2:0}, M={3:0}, N={9:0}] [L562] COND TRUE *i < *M || *j < *N [L563] EXPR \read(*i) VAL [\read(*i)=2147483647, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, a={6:0}, b={5:0}, c={8:0}, i={7:0}, j={2:0}, M={3:0}, N={9:0}] [L563] *i + 1 VAL [\read(*i)=2147483647, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, a={6:0}, b={5:0}, c={8:0}, i={7:0}, j={2:0}, M={3:0}, N={9:0}] - 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: 564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 564]: 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 29.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 24 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, InterpolantAutomatonStates: 13, 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, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 28.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-02-17 09:29:49,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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)