./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/signedintegeroverflow-regression/Multiplication-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 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/signedintegeroverflow-regression/Multiplication-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 021e4f8940d15c94127389d77cde2abb11b72d35c826acc8caed8d604de7e2d1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 00:29:18,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 00:29:18,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 00:29:18,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 00:29:18,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 00:29:18,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 00:29:18,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 00:29:18,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 00:29:18,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 00:29:18,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 00:29:18,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 00:29:18,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 00:29:18,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 00:29:18,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 00:29:19,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 00:29:19,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 00:29:19,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 00:29:19,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 00:29:19,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 00:29:19,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 00:29:19,015 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 00:29:19,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 00:29:19,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 00:29:19,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 00:29:19,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 00:29:19,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 00:29:19,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 00:29:19,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 00:29:19,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 00:29:19,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 00:29:19,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 00:29:19,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 00:29:19,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 00:29:19,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 00:29:19,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 00:29:19,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 00:29:19,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 00:29:19,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 00:29:19,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 00:29:19,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 00:29:19,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 00:29:19,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 00:29:19,047 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-22 00:29:19,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 00:29:19,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 00:29:19,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 00:29:19,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 00:29:19,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 00:29:19,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 00:29:19,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 00:29:19,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 00:29:19,089 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 00:29:19,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 00:29:19,090 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 00:29:19,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 00:29:19,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 00:29:19,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 00:29:19,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 00:29:19,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 00:29:19,092 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 00:29:19,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 00:29:19,092 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 00:29:19,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 00:29:19,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 00:29:19,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 00:29:19,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 00:29:19,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:29:19,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 00:29:19,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 00:29:19,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 00:29:19,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 00:29:19,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 00:29:19,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 00:29:19,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 021e4f8940d15c94127389d77cde2abb11b72d35c826acc8caed8d604de7e2d1 [2022-07-22 00:29:19,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 00:29:19,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 00:29:19,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 00:29:19,435 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 00:29:19,436 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 00:29:19,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/signedintegeroverflow-regression/Multiplication-2.i [2022-07-22 00:29:19,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6751c23b/be1b2880513f4c108f2b40f8a7e25e8e/FLAGede953cd2 [2022-07-22 00:29:20,053 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 00:29:20,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/signedintegeroverflow-regression/Multiplication-2.i [2022-07-22 00:29:20,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6751c23b/be1b2880513f4c108f2b40f8a7e25e8e/FLAGede953cd2 [2022-07-22 00:29:20,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6751c23b/be1b2880513f4c108f2b40f8a7e25e8e [2022-07-22 00:29:20,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 00:29:20,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 00:29:20,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 00:29:20,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 00:29:20,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 00:29:20,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:29:20" (1/1) ... [2022-07-22 00:29:20,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b2928c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:20, skipping insertion in model container [2022-07-22 00:29:20,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:29:20" (1/1) ... [2022-07-22 00:29:20,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 00:29:20,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 00:29:20,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:29:20,803 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 00:29:20,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:29:20,863 INFO L208 MainTranslator]: Completed translation [2022-07-22 00:29:20,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:20 WrapperNode [2022-07-22 00:29:20,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 00:29:20,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 00:29:20,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 00:29:20,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 00:29:20,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:20" (1/1) ... [2022-07-22 00:29:20,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:20" (1/1) ... [2022-07-22 00:29:20,903 INFO L137 Inliner]: procedures = 109, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2022-07-22 00:29:20,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 00:29:20,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 00:29:20,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 00:29:20,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 00:29:20,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:20" (1/1) ... [2022-07-22 00:29:20,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:20" (1/1) ... [2022-07-22 00:29:20,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:20" (1/1) ... [2022-07-22 00:29:20,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:20" (1/1) ... [2022-07-22 00:29:20,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:20" (1/1) ... [2022-07-22 00:29:20,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:20" (1/1) ... [2022-07-22 00:29:20,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:20" (1/1) ... [2022-07-22 00:29:20,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 00:29:20,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 00:29:20,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 00:29:20,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 00:29:20,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:20" (1/1) ... [2022-07-22 00:29:20,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:29:20,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:29:20,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 00:29:20,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 00:29:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 00:29:21,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 00:29:21,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 00:29:21,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 00:29:21,144 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 00:29:21,146 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 00:29:21,223 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 00:29:21,229 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 00:29:21,229 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 00:29:21,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:29:21 BoogieIcfgContainer [2022-07-22 00:29:21,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 00:29:21,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 00:29:21,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 00:29:21,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 00:29:21,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:29:20" (1/3) ... [2022-07-22 00:29:21,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232c2af9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:29:21, skipping insertion in model container [2022-07-22 00:29:21,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:20" (2/3) ... [2022-07-22 00:29:21,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232c2af9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:29:21, skipping insertion in model container [2022-07-22 00:29:21,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:29:21" (3/3) ... [2022-07-22 00:29:21,238 INFO L111 eAbstractionObserver]: Analyzing ICFG Multiplication-2.i [2022-07-22 00:29:21,253 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 00:29:21,253 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 00:29:21,307 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 00:29:21,316 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@22ecbbcd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@23defe57 [2022-07-22 00:29:21,316 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 00:29:21,320 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 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) [2022-07-22 00:29:21,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-22 00:29:21,327 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:29:21,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-22 00:29:21,328 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-07-22 00:29:21,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:29:21,334 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2022-07-22 00:29:21,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:29:21,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708935893] [2022-07-22 00:29:21,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:21,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:29:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 00:29:21,431 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 00:29:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 00:29:21,462 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 00:29:21,465 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 00:29:21,466 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 1 remaining) [2022-07-22 00:29:21,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 00:29:21,473 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-22 00:29:21,477 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 00:29:21,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 12:29:21 BoogieIcfgContainer [2022-07-22 00:29:21,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 00:29:21,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 00:29:21,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 00:29:21,494 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 00:29:21,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:29:21" (3/4) ... [2022-07-22 00:29:21,496 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 00:29:21,523 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 00:29:21,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 00:29:21,525 INFO L158 Benchmark]: Toolchain (without parser) took 1027.76ms. Allocated memory is still 56.6MB. Free memory was 40.1MB in the beginning and 24.1MB in the end (delta: 16.0MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2022-07-22 00:29:21,526 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 46.1MB. Free memory was 27.9MB in the beginning and 27.9MB in the end (delta: 32.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:29:21,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.79ms. Allocated memory is still 56.6MB. Free memory was 39.8MB in the beginning and 35.0MB in the end (delta: 4.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 00:29:21,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.47ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 33.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 00:29:21,530 INFO L158 Benchmark]: Boogie Preprocessor took 25.30ms. Allocated memory is still 56.6MB. Free memory was 33.4MB in the beginning and 32.5MB in the end (delta: 913.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:29:21,532 INFO L158 Benchmark]: RCFGBuilder took 299.39ms. Allocated memory is still 56.6MB. Free memory was 32.5MB in the beginning and 38.4MB in the end (delta: -6.0MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-07-22 00:29:21,533 INFO L158 Benchmark]: TraceAbstraction took 259.04ms. Allocated memory is still 56.6MB. Free memory was 37.9MB in the beginning and 25.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 00:29:21,536 INFO L158 Benchmark]: Witness Printer took 29.64ms. Allocated memory is still 56.6MB. Free memory was 25.6MB in the beginning and 24.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 00:29:21,540 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 46.1MB. Free memory was 27.9MB in the beginning and 27.9MB in the end (delta: 32.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.79ms. Allocated memory is still 56.6MB. Free memory was 39.8MB in the beginning and 35.0MB in the end (delta: 4.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.47ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 33.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.30ms. Allocated memory is still 56.6MB. Free memory was 33.4MB in the beginning and 32.5MB in the end (delta: 913.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 299.39ms. Allocated memory is still 56.6MB. Free memory was 32.5MB in the beginning and 38.4MB in the end (delta: -6.0MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * TraceAbstraction took 259.04ms. Allocated memory is still 56.6MB. Free memory was 37.9MB in the beginning and 25.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 29.64ms. Allocated memory is still 56.6MB. Free memory was 25.6MB in the beginning and 24.1MB in the end (delta: 1.6MB). 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: 332]: integer overflow possible integer overflow possible We found a FailurePath: [L332] 65536 * 32768 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-22 00:29:21,595 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)