./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Addition03-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 26d01a9c 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/recursive/Addition03-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 05e1586341923e86773678b8473c98179ef8b90b2477706a4d2e580d9d3d8e12 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 07:27:11,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 07:27:11,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 07:27:11,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 07:27:11,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 07:27:11,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 07:27:11,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 07:27:11,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 07:27:11,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 07:27:11,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 07:27:11,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 07:27:11,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 07:27:11,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 07:27:11,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 07:27:11,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 07:27:11,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 07:27:11,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 07:27:11,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 07:27:11,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 07:27:11,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 07:27:11,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 07:27:11,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 07:27:11,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 07:27:11,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 07:27:11,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 07:27:11,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 07:27:11,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 07:27:11,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 07:27:11,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 07:27:11,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 07:27:11,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 07:27:11,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 07:27:11,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 07:27:11,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 07:27:11,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 07:27:11,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 07:27:11,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 07:27:11,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 07:27:11,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 07:27:11,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 07:27:11,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 07:27:11,170 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-18 07:27:11,204 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 07:27:11,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 07:27:11,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 07:27:11,206 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 07:27:11,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 07:27:11,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 07:27:11,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 07:27:11,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 07:27:11,208 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 07:27:11,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 07:27:11,209 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 07:27:11,209 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 07:27:11,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 07:27:11,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 07:27:11,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 07:27:11,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 07:27:11,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 07:27:11,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 07:27:11,211 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 07:27:11,211 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 07:27:11,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 07:27:11,211 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 07:27:11,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 07:27:11,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 07:27:11,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 07:27:11,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 07:27:11,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 07:27:11,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 07:27:11,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 07:27:11,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 07:27:11,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 07:27:11,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 07:27:11,214 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 07:27:11,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 07:27:11,214 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 07:27:11,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 07:27:11,215 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 07:27:11,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05e1586341923e86773678b8473c98179ef8b90b2477706a4d2e580d9d3d8e12 [2023-02-18 07:27:11,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 07:27:11,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 07:27:11,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 07:27:11,535 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 07:27:11,535 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 07:27:11,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition03-2.c [2023-02-18 07:27:12,670 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 07:27:12,842 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 07:27:12,843 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-2.c [2023-02-18 07:27:12,849 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658be3b06/466d357ec2fd43989abc8dbc8ce145d4/FLAG1ded6c878 [2023-02-18 07:27:12,867 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658be3b06/466d357ec2fd43989abc8dbc8ce145d4 [2023-02-18 07:27:12,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 07:27:12,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 07:27:12,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 07:27:12,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 07:27:12,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 07:27:12,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:27:12" (1/1) ... [2023-02-18 07:27:12,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3383da4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:27:12, skipping insertion in model container [2023-02-18 07:27:12,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:27:12" (1/1) ... [2023-02-18 07:27:12,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 07:27:12,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 07:27:13,053 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-2.c[816,829] [2023-02-18 07:27:13,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 07:27:13,063 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 07:27:13,073 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-2.c[816,829] [2023-02-18 07:27:13,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 07:27:13,083 INFO L208 MainTranslator]: Completed translation [2023-02-18 07:27:13,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:27:13 WrapperNode [2023-02-18 07:27:13,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 07:27:13,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 07:27:13,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 07:27:13,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 07:27:13,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:27:13" (1/1) ... [2023-02-18 07:27:13,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:27:13" (1/1) ... [2023-02-18 07:27:13,111 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2023-02-18 07:27:13,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 07:27:13,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 07:27:13,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 07:27:13,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 07:27:13,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:27:13" (1/1) ... [2023-02-18 07:27:13,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:27:13" (1/1) ... [2023-02-18 07:27:13,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:27:13" (1/1) ... [2023-02-18 07:27:13,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:27:13" (1/1) ... [2023-02-18 07:27:13,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:27:13" (1/1) ... [2023-02-18 07:27:13,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:27:13" (1/1) ... [2023-02-18 07:27:13,125 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:27:13" (1/1) ... [2023-02-18 07:27:13,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:27:13" (1/1) ... [2023-02-18 07:27:13,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 07:27:13,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 07:27:13,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 07:27:13,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 07:27:13,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:27:13" (1/1) ... [2023-02-18 07:27:13,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 07:27:13,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:27:13,158 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) [2023-02-18 07:27:13,160 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 [2023-02-18 07:27:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 07:27:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 07:27:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 07:27:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 07:27:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2023-02-18 07:27:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2023-02-18 07:27:13,238 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 07:27:13,240 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 07:27:13,354 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 07:27:13,372 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 07:27:13,372 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-18 07:27:13,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:27:13 BoogieIcfgContainer [2023-02-18 07:27:13,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 07:27:13,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 07:27:13,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 07:27:13,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 07:27:13,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 07:27:12" (1/3) ... [2023-02-18 07:27:13,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d6e0636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:27:13, skipping insertion in model container [2023-02-18 07:27:13,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:27:13" (2/3) ... [2023-02-18 07:27:13,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d6e0636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:27:13, skipping insertion in model container [2023-02-18 07:27:13,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:27:13" (3/3) ... [2023-02-18 07:27:13,382 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition03-2.c [2023-02-18 07:27:13,397 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 07:27:13,397 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-18 07:27:13,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 07:27:13,458 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;@7055b571, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 07:27:13,459 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-18 07:27:13,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-18 07:27:13,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 07:27:13,468 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:27:13,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:27:13,469 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 07:27:13,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:27:13,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1845786995, now seen corresponding path program 1 times [2023-02-18 07:27:13,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:27:13,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234979147] [2023-02-18 07:27:13,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:27:13,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:27:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:27:13,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:27:13,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:27:13,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234979147] [2023-02-18 07:27:13,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234979147] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:27:13,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:27:13,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 07:27:13,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394413705] [2023-02-18 07:27:13,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:27:13,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 07:27:13,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:27:13,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 07:27:13,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 07:27:13,707 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:27:13,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:27:13,867 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2023-02-18 07:27:13,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 07:27:13,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 07:27:13,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:27:13,876 INFO L225 Difference]: With dead ends: 66 [2023-02-18 07:27:13,876 INFO L226 Difference]: Without dead ends: 46 [2023-02-18 07:27:13,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-18 07:27:13,882 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 60 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 07:27:13,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 97 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 07:27:13,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-02-18 07:27:13,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 33. [2023-02-18 07:27:13,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.619047619047619) internal successors, (34), 30 states have internal predecessors, (34), 4 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:27:13,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2023-02-18 07:27:13,914 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 7 [2023-02-18 07:27:13,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:27:13,914 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2023-02-18 07:27:13,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:27:13,915 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2023-02-18 07:27:13,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 07:27:13,915 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:27:13,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:27:13,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 07:27:13,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 07:27:13,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:27:13,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1384833008, now seen corresponding path program 1 times [2023-02-18 07:27:13,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:27:13,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717761023] [2023-02-18 07:27:13,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:27:13,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:27:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 07:27:13,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 07:27:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 07:27:13,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 07:27:13,964 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-18 07:27:13,966 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-02-18 07:27:13,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-02-18 07:27:13,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-02-18 07:27:13,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-02-18 07:27:13,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-02-18 07:27:13,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-02-18 07:27:13,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-02-18 07:27:13,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-02-18 07:27:13,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 07:27:13,973 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-02-18 07:27:13,981 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 07:27:14,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 07:27:14 BoogieIcfgContainer [2023-02-18 07:27:14,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 07:27:14,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 07:27:14,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 07:27:14,009 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 07:27:14,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:27:13" (3/4) ... [2023-02-18 07:27:14,011 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-18 07:27:14,049 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 07:27:14,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 07:27:14,050 INFO L158 Benchmark]: Toolchain (without parser) took 1180.01ms. Allocated memory is still 167.8MB. Free memory was 122.3MB in the beginning and 137.0MB in the end (delta: -14.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 07:27:14,051 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 07:27:14,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.12ms. Allocated memory is still 167.8MB. Free memory was 122.3MB in the beginning and 112.6MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 07:27:14,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.39ms. Allocated memory is still 167.8MB. Free memory was 112.6MB in the beginning and 111.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 07:27:14,057 INFO L158 Benchmark]: Boogie Preprocessor took 14.87ms. Allocated memory is still 167.8MB. Free memory was 111.1MB in the beginning and 109.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 07:27:14,058 INFO L158 Benchmark]: RCFGBuilder took 247.08ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 99.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 07:27:14,058 INFO L158 Benchmark]: TraceAbstraction took 632.24ms. Allocated memory is still 167.8MB. Free memory was 98.6MB in the beginning and 139.1MB in the end (delta: -40.5MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2023-02-18 07:27:14,059 INFO L158 Benchmark]: Witness Printer took 40.95ms. Allocated memory is still 167.8MB. Free memory was 139.1MB in the beginning and 137.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 07:27:14,061 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 210.12ms. Allocated memory is still 167.8MB. Free memory was 122.3MB in the beginning and 112.6MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.39ms. Allocated memory is still 167.8MB. Free memory was 112.6MB in the beginning and 111.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.87ms. Allocated memory is still 167.8MB. Free memory was 111.1MB in the beginning and 109.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 247.08ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 99.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 632.24ms. Allocated memory is still 167.8MB. Free memory was 98.6MB in the beginning and 139.1MB in the end (delta: -40.5MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * Witness Printer took 40.95ms. Allocated memory is still 167.8MB. Free memory was 139.1MB in the beginning and 137.0MB 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: 23]: integer overflow possible integer overflow possible We found a FailurePath: [L29] int m = __VERIFIER_nondet_int(); [L30] int n = __VERIFIER_nondet_int(); [L31] CALL addition(m,n) VAL [\old(m)=-2147483648, \old(n)=-1] [L16] COND FALSE !(n == 0) VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] [L19] COND FALSE !(n > 0) VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] [L22] COND TRUE n < 0 VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] [L23] m-1 VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: 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 2 procedures, 35 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 28 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 1 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2023-02-18 07:27:14,084 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)