./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/sum_non.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5fbdf5bf 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-simple/sum_non.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 2355a4d05f76bd59f1e3cc71c2462258521b54a0 ................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 22:45:17,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 22:45:17,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 22:45:17,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 22:45:17,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 22:45:17,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 22:45:17,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 22:45:17,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 22:45:17,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 22:45:17,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 22:45:17,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 22:45:17,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 22:45:17,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 22:45:17,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 22:45:17,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 22:45:17,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 22:45:17,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 22:45:17,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 22:45:17,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 22:45:17,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 22:45:17,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 22:45:17,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 22:45:17,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 22:45:17,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 22:45:17,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 22:45:17,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 22:45:17,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 22:45:17,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 22:45:17,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 22:45:17,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 22:45:17,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 22:45:17,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 22:45:17,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 22:45:17,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 22:45:17,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 22:45:17,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 22:45:17,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 22:45:17,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 22:45:17,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 22:45:17,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 22:45:17,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 22:45:17,765 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-08-30 22:45:17,801 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 22:45:17,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 22:45:17,802 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 22:45:17,802 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 22:45:17,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 22:45:17,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 22:45:17,804 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 22:45:17,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 22:45:17,805 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 22:45:17,805 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 22:45:17,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 22:45:17,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 22:45:17,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 22:45:17,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-30 22:45:17,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 22:45:17,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-30 22:45:17,807 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-30 22:45:17,807 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 22:45:17,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-30 22:45:17,807 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 22:45:17,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-30 22:45:17,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 22:45:17,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 22:45:17,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 22:45:17,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:45:17,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 22:45:17,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 22:45:17,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-30 22:45:17,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 22:45:17,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 22:45:17,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-30 22:45:17,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 22:45:17,818 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2355a4d05f76bd59f1e3cc71c2462258521b54a0 [2021-08-30 22:45:18,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 22:45:18,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 22:45:18,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 22:45:18,147 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 22:45:18,147 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 22:45:18,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/sum_non.c [2021-08-30 22:45:18,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a2ef5f89/9d44822d7b404ab5be39efe01db86d05/FLAG3784e551b [2021-08-30 22:45:18,630 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 22:45:18,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_non.c [2021-08-30 22:45:18,639 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a2ef5f89/9d44822d7b404ab5be39efe01db86d05/FLAG3784e551b [2021-08-30 22:45:19,049 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a2ef5f89/9d44822d7b404ab5be39efe01db86d05 [2021-08-30 22:45:19,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 22:45:19,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-30 22:45:19,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 22:45:19,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 22:45:19,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 22:45:19,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:45:19" (1/1) ... [2021-08-30 22:45:19,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bfc0b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:19, skipping insertion in model container [2021-08-30 22:45:19,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:45:19" (1/1) ... [2021-08-30 22:45:19,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 22:45:19,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 22:45:19,180 WARN L228 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-simple/sum_non.c[561,574] [2021-08-30 22:45:19,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:45:19,188 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 22:45:19,199 WARN L228 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-simple/sum_non.c[561,574] [2021-08-30 22:45:19,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:45:19,211 INFO L208 MainTranslator]: Completed translation [2021-08-30 22:45:19,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:19 WrapperNode [2021-08-30 22:45:19,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 22:45:19,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-30 22:45:19,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-30 22:45:19,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-30 22:45:19,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:19" (1/1) ... [2021-08-30 22:45:19,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:19" (1/1) ... [2021-08-30 22:45:19,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-30 22:45:19,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 22:45:19,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 22:45:19,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 22:45:19,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:19" (1/1) ... [2021-08-30 22:45:19,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:19" (1/1) ... [2021-08-30 22:45:19,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:19" (1/1) ... [2021-08-30 22:45:19,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:19" (1/1) ... [2021-08-30 22:45:19,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:19" (1/1) ... [2021-08-30 22:45:19,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:19" (1/1) ... [2021-08-30 22:45:19,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:19" (1/1) ... [2021-08-30 22:45:19,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 22:45:19,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 22:45:19,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 22:45:19,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 22:45:19,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:19" (1/1) ... [2021-08-30 22:45:19,293 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:45:19,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:19,314 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) [2021-08-30 22:45:19,327 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 [2021-08-30 22:45:19,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 22:45:19,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 22:45:19,349 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-08-30 22:45:19,349 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-08-30 22:45:19,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-30 22:45:19,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 22:45:19,508 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 22:45:19,509 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-30 22:45:19,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:45:19 BoogieIcfgContainer [2021-08-30 22:45:19,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 22:45:19,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 22:45:19,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 22:45:19,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 22:45:19,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:45:19" (1/3) ... [2021-08-30 22:45:19,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767d915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:45:19, skipping insertion in model container [2021-08-30 22:45:19,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:19" (2/3) ... [2021-08-30 22:45:19,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767d915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:45:19, skipping insertion in model container [2021-08-30 22:45:19,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:45:19" (3/3) ... [2021-08-30 22:45:19,519 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non.c [2021-08-30 22:45:19,524 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 22:45:19,524 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-08-30 22:45:19,574 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 22:45:19,582 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 22:45:19,583 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-08-30 22:45:19,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-30 22:45:19,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-30 22:45:19,602 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:19,602 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-30 22:45:19,603 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:19,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:19,608 INFO L82 PathProgramCache]: Analyzing trace with hash 890531536, now seen corresponding path program 1 times [2021-08-30 22:45:19,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:19,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831040650] [2021-08-30 22:45:19,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:19,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:19,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:19,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:19,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831040650] [2021-08-30 22:45:19,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831040650] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:19,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:19,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-30 22:45:19,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647751508] [2021-08-30 22:45:19,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 22:45:19,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:19,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 22:45:19,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-30 22:45:19,915 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 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) [2021-08-30 22:45:20,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:20,129 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2021-08-30 22:45:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-30 22:45:20,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 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 6 [2021-08-30 22:45:20,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:20,138 INFO L225 Difference]: With dead ends: 56 [2021-08-30 22:45:20,138 INFO L226 Difference]: Without dead ends: 47 [2021-08-30 22:45:20,141 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.74ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-30 22:45:20,144 INFO L928 BasicCegarLoop]: 6 mSDtfsCounter, 53 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 118.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.87ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 156.06ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:20,144 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 15 Invalid, 143 Unknown, 0 Unchecked, 3.87ms Time], IncrementalHoareTripleChecker [7 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 156.06ms Time] [2021-08-30 22:45:20,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-30 22:45:20,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 38. [2021-08-30 22:45:20,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.56) internal successors, (39), 32 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-30 22:45:20,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2021-08-30 22:45:20,193 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 6 [2021-08-30 22:45:20,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:20,194 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2021-08-30 22:45:20,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 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) [2021-08-30 22:45:20,194 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2021-08-30 22:45:20,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-30 22:45:20,195 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:20,195 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-30 22:45:20,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 22:45:20,196 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:20,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:20,196 INFO L82 PathProgramCache]: Analyzing trace with hash 890531696, now seen corresponding path program 1 times [2021-08-30 22:45:20,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:20,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979453590] [2021-08-30 22:45:20,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:20,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:20,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:20,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:20,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979453590] [2021-08-30 22:45:20,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979453590] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:20,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:20,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-30 22:45:20,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393203746] [2021-08-30 22:45:20,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 22:45:20,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:20,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 22:45:20,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:45:20,277 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-08-30 22:45:20,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:20,372 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2021-08-30 22:45:20,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 22:45:20,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 6 [2021-08-30 22:45:20,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:20,374 INFO L225 Difference]: With dead ends: 38 [2021-08-30 22:45:20,374 INFO L226 Difference]: Without dead ends: 37 [2021-08-30 22:45:20,374 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.83ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-30 22:45:20,376 INFO L928 BasicCegarLoop]: 2 mSDtfsCounter, 34 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.18ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.04ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:20,376 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 4 Invalid, 61 Unknown, 0 Unchecked, 1.18ms Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 71.04ms Time] [2021-08-30 22:45:20,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-08-30 22:45:20,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-08-30 22:45:20,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.48) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-30 22:45:20,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2021-08-30 22:45:20,385 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 6 [2021-08-30 22:45:20,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:20,386 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-08-30 22:45:20,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-08-30 22:45:20,386 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2021-08-30 22:45:20,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-30 22:45:20,387 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:20,387 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:20,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 22:45:20,387 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:20,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:20,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1836673896, now seen corresponding path program 1 times [2021-08-30 22:45:20,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:20,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848337305] [2021-08-30 22:45:20,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:20,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 22:45:20,403 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-30 22:45:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 22:45:20,430 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-30 22:45:20,430 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-30 22:45:20,431 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2021-08-30 22:45:20,433 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2021-08-30 22:45:20,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2021-08-30 22:45:20,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2021-08-30 22:45:20,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2021-08-30 22:45:20,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2021-08-30 22:45:20,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2021-08-30 22:45:20,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2021-08-30 22:45:20,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-30 22:45:20,441 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 22:45:20,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:45:20 BoogieIcfgContainer [2021-08-30 22:45:20,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 22:45:20,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 22:45:20,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 22:45:20,460 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 22:45:20,460 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:45:19" (3/4) ... [2021-08-30 22:45:20,462 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-30 22:45:20,500 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-30 22:45:20,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 22:45:20,502 INFO L158 Benchmark]: Toolchain (without parser) took 1447.48ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 29.5MB in the beginning and 31.5MB in the end (delta: -2.0MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-08-30 22:45:20,503 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 52.4MB. Free memory is still 34.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:45:20,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 155.85ms. Allocated memory is still 52.4MB. Free memory was 29.3MB in the beginning and 33.5MB in the end (delta: -4.3MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-08-30 22:45:20,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.68ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 33.5MB in the beginning and 46.7MB in the end (delta: -13.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2021-08-30 22:45:20,505 INFO L158 Benchmark]: Boogie Preprocessor took 41.38ms. Allocated memory is still 62.9MB. Free memory was 46.7MB in the beginning and 45.8MB in the end (delta: 887.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:45:20,506 INFO L158 Benchmark]: RCFGBuilder took 223.91ms. Allocated memory is still 62.9MB. Free memory was 45.6MB in the beginning and 37.1MB in the end (delta: 8.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-30 22:45:20,506 INFO L158 Benchmark]: TraceAbstraction took 945.50ms. Allocated memory is still 62.9MB. Free memory was 36.6MB in the beginning and 33.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2021-08-30 22:45:20,507 INFO L158 Benchmark]: Witness Printer took 40.80ms. Allocated memory is still 62.9MB. Free memory was 33.0MB in the beginning and 31.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:45:20,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 52.4MB. Free memory is still 34.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 155.85ms. Allocated memory is still 52.4MB. Free memory was 29.3MB in the beginning and 33.5MB in the end (delta: -4.3MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.68ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 33.5MB in the beginning and 46.7MB in the end (delta: -13.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.38ms. Allocated memory is still 62.9MB. Free memory was 46.7MB in the beginning and 45.8MB in the end (delta: 887.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 223.91ms. Allocated memory is still 62.9MB. Free memory was 45.6MB in the beginning and 37.1MB in the end (delta: 8.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 945.50ms. Allocated memory is still 62.9MB. Free memory was 36.6MB in the beginning and 33.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 40.80ms. Allocated memory is still 62.9MB. Free memory was 33.0MB in the beginning and 31.5MB 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, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 8]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int a = __VERIFIER_nondet_int(); [L16] int b = __VERIFIER_nondet_int(); [L17] CALL sum(a, b) VAL [\old(m)=-2147483648, \old(n)=-1] [L7] COND TRUE n <= 0 VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] [L8] m + n VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 8]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 10]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 10]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 10]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 10]: 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, 31 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 867.06ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 7.68ms, AutomataDifference: 354.95ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 12.05ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 227.10ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 172.06ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 194 IncrementalHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 8 mSDtfsCounter, 194 mSolverCounterSat, 5.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.58ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=1, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 44.72ms AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.48ms SsaConstructionTime, 54.37ms SatisfiabilityAnalysisTime, 216.21ms InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-30 22:45:20,551 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...