./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Mysore-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/Mysore-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 638781bd69a51ef751cb454a3c2ea01d5ddfa7e74d0b5b05ad4d93f1e02b3c42 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 13:39:28,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 13:39:28,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 13:39:28,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 13:39:28,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 13:39:28,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 13:39:28,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 13:39:28,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 13:39:28,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 13:39:28,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 13:39:28,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 13:39:28,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 13:39:28,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 13:39:28,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 13:39:28,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 13:39:28,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 13:39:28,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 13:39:28,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 13:39:28,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 13:39:28,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 13:39:28,383 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 13:39:28,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 13:39:28,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 13:39:28,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 13:39:28,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 13:39:28,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 13:39:28,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 13:39:28,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 13:39:28,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 13:39:28,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 13:39:28,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 13:39:28,394 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 13:39:28,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 13:39:28,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 13:39:28,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 13:39:28,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 13:39:28,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 13:39:28,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 13:39:28,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 13:39:28,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 13:39:28,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 13:39:28,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 13:39:28,400 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-14 13:39:28,422 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 13:39:28,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 13:39:28,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 13:39:28,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 13:39:28,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 13:39:28,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 13:39:28,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 13:39:28,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 13:39:28,425 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 13:39:28,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 13:39:28,425 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 13:39:28,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 13:39:28,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 13:39:28,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 13:39:28,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 13:39:28,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 13:39:28,426 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 13:39:28,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 13:39:28,427 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 13:39:28,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 13:39:28,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 13:39:28,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 13:39:28,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 13:39:28,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:39:28,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 13:39:28,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 13:39:28,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 13:39:28,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 13:39:28,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 13:39:28,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 13:39:28,429 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 638781bd69a51ef751cb454a3c2ea01d5ddfa7e74d0b5b05ad4d93f1e02b3c42 [2022-07-14 13:39:28,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 13:39:28,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 13:39:28,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 13:39:28,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 13:39:28,651 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 13:39:28,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Mysore-1.c [2022-07-14 13:39:28,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a3c7f1d/c183c00a55ab449dbeb9861a00d6d4fa/FLAGbc3736a9a [2022-07-14 13:39:29,041 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 13:39:29,041 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Mysore-1.c [2022-07-14 13:39:29,045 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a3c7f1d/c183c00a55ab449dbeb9861a00d6d4fa/FLAGbc3736a9a [2022-07-14 13:39:29,493 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a3c7f1d/c183c00a55ab449dbeb9861a00d6d4fa [2022-07-14 13:39:29,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 13:39:29,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 13:39:29,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 13:39:29,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 13:39:29,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 13:39:29,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:39:29" (1/1) ... [2022-07-14 13:39:29,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d1407df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:39:29, skipping insertion in model container [2022-07-14 13:39:29,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:39:29" (1/1) ... [2022-07-14 13:39:29,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 13:39:29,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 13:39:29,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:39:29,608 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 13:39:29,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:39:29,635 INFO L208 MainTranslator]: Completed translation [2022-07-14 13:39:29,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:39:29 WrapperNode [2022-07-14 13:39:29,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 13:39:29,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 13:39:29,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 13:39:29,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 13:39:29,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:39:29" (1/1) ... [2022-07-14 13:39:29,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:39:29" (1/1) ... [2022-07-14 13:39:29,667 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2022-07-14 13:39:29,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 13:39:29,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 13:39:29,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 13:39:29,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 13:39:29,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:39:29" (1/1) ... [2022-07-14 13:39:29,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:39:29" (1/1) ... [2022-07-14 13:39:29,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:39:29" (1/1) ... [2022-07-14 13:39:29,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:39:29" (1/1) ... [2022-07-14 13:39:29,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:39:29" (1/1) ... [2022-07-14 13:39:29,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:39:29" (1/1) ... [2022-07-14 13:39:29,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:39:29" (1/1) ... [2022-07-14 13:39:29,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 13:39:29,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 13:39:29,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 13:39:29,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 13:39:29,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:39:29" (1/1) ... [2022-07-14 13:39:29,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:39:29,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:39:29,708 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) [2022-07-14 13:39:29,726 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 [2022-07-14 13:39:29,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 13:39:29,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 13:39:29,779 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 13:39:29,780 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 13:39:29,851 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 13:39:29,856 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 13:39:29,859 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 13:39:29,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:39:29 BoogieIcfgContainer [2022-07-14 13:39:29,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 13:39:29,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 13:39:29,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 13:39:29,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 13:39:29,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:39:29" (1/3) ... [2022-07-14 13:39:29,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287f620d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:39:29, skipping insertion in model container [2022-07-14 13:39:29,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:39:29" (2/3) ... [2022-07-14 13:39:29,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287f620d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:39:29, skipping insertion in model container [2022-07-14 13:39:29,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:39:29" (3/3) ... [2022-07-14 13:39:29,874 INFO L111 eAbstractionObserver]: Analyzing ICFG Mysore-1.c [2022-07-14 13:39:29,884 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 13:39:29,884 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-14 13:39:29,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 13:39:29,922 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@2aecfb30, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2f3c52a1 [2022-07-14 13:39:29,922 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-14 13:39:29,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 19 states have internal predecessors, (22), 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) [2022-07-14 13:39:29,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-14 13:39:29,929 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:39:29,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-14 13:39:29,930 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)] === [2022-07-14 13:39:29,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:39:29,933 INFO L85 PathProgramCache]: Analyzing trace with hash 925608, now seen corresponding path program 1 times [2022-07-14 13:39:29,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:39:29,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279414373] [2022-07-14 13:39:29,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:39:29,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:39:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 13:39:29,993 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 13:39:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 13:39:30,006 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 13:39:30,007 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 13:39:30,008 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-07-14 13:39:30,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-07-14 13:39:30,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-07-14 13:39:30,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-07-14 13:39:30,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-07-14 13:39:30,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-07-14 13:39:30,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 13:39:30,014 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-14 13:39:30,018 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 13:39:30,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 01:39:30 BoogieIcfgContainer [2022-07-14 13:39:30,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 13:39:30,031 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 13:39:30,031 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 13:39:30,031 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 13:39:30,031 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:39:29" (3/4) ... [2022-07-14 13:39:30,033 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-14 13:39:30,063 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 13:39:30,063 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 13:39:30,064 INFO L158 Benchmark]: Toolchain (without parser) took 567.89ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 68.3MB in the end (delta: 20.3MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-07-14 13:39:30,065 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 83.9MB. Free memory was 42.1MB in the beginning and 42.0MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 13:39:30,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 138.00ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 94.4MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 13:39:30,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.99ms. Allocated memory is still 117.4MB. Free memory was 94.4MB in the beginning and 93.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 13:39:30,070 INFO L158 Benchmark]: Boogie Preprocessor took 9.87ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 91.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 13:39:30,070 INFO L158 Benchmark]: RCFGBuilder took 182.10ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 83.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 13:39:30,070 INFO L158 Benchmark]: TraceAbstraction took 168.97ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 70.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-14 13:39:30,071 INFO L158 Benchmark]: Witness Printer took 32.58ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 68.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 13:39:30,075 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 83.9MB. Free memory was 42.1MB in the beginning and 42.0MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 138.00ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 94.4MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.99ms. Allocated memory is still 117.4MB. Free memory was 94.4MB in the beginning and 93.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 9.87ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 91.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 182.10ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 83.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 168.97ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 70.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 32.58ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 68.3MB in the end (delta: 2.0MB). 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: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int c, x; [L16] x = __VERIFIER_nondet_int() [L17] c = __VERIFIER_nondet_int() [L18] COND TRUE c >= 2 VAL [c=2, x=2147483646] [L19] x + c VAL [c=2, x=2147483646] - UnprovableResult [Line: 19]: 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: 21]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 21]: 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, 20 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, 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=20occurred 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-14 13:39:30,114 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)