./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark15_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark15_conjunctive.i -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 46a51a72c3021359003e3ef71d7da3d3d8bbf22ab51378532c0a04e68e0092dc --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 00:48:21,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 00:48:21,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 00:48:21,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 00:48:21,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 00:48:21,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 00:48:21,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 00:48:21,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 00:48:21,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 00:48:21,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 00:48:21,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 00:48:21,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 00:48:21,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 00:48:21,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 00:48:21,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 00:48:21,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 00:48:21,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 00:48:21,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 00:48:21,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 00:48:21,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 00:48:21,848 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 00:48:21,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 00:48:21,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 00:48:21,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 00:48:21,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 00:48:21,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 00:48:21,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 00:48:21,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 00:48:21,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 00:48:21,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 00:48:21,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 00:48:21,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 00:48:21,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 00:48:21,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 00:48:21,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 00:48:21,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 00:48:21,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 00:48:21,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 00:48:21,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 00:48:21,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 00:48:21,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 00:48:21,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 00:48:21,875 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-22 00:48:21,908 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 00:48:21,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 00:48:21,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 00:48:21,910 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 00:48:21,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 00:48:21,911 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 00:48:21,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 00:48:21,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 00:48:21,912 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 00:48:21,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 00:48:21,913 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 00:48:21,913 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 00:48:21,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 00:48:21,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 00:48:21,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 00:48:21,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 00:48:21,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 00:48:21,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 00:48:21,916 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 00:48:21,916 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 00:48:21,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 00:48:21,917 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 00:48:21,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 00:48:21,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 00:48:21,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 00:48:21,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 00:48:21,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:48:21,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 00:48:21,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 00:48:21,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 00:48:21,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 00:48:21,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 00:48:21,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 00:48:21,920 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46a51a72c3021359003e3ef71d7da3d3d8bbf22ab51378532c0a04e68e0092dc [2022-07-22 00:48:22,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 00:48:22,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 00:48:22,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 00:48:22,248 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 00:48:22,249 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 00:48:22,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark15_conjunctive.i [2022-07-22 00:48:22,309 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec1fe1c6/43c871abaf9946f2a84383c3a5a332d7/FLAG35ef287c2 [2022-07-22 00:48:22,690 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 00:48:22,691 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark15_conjunctive.i [2022-07-22 00:48:22,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec1fe1c6/43c871abaf9946f2a84383c3a5a332d7/FLAG35ef287c2 [2022-07-22 00:48:22,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec1fe1c6/43c871abaf9946f2a84383c3a5a332d7 [2022-07-22 00:48:22,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 00:48:22,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 00:48:22,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 00:48:22,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 00:48:22,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 00:48:22,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:48:22" (1/1) ... [2022-07-22 00:48:22,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742e876f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:48:22, skipping insertion in model container [2022-07-22 00:48:22,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:48:22" (1/1) ... [2022-07-22 00:48:22,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 00:48:22,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 00:48:22,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark15_conjunctive.i[873,886] [2022-07-22 00:48:22,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:48:22,881 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 00:48:22,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark15_conjunctive.i[873,886] [2022-07-22 00:48:22,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:48:22,943 INFO L208 MainTranslator]: Completed translation [2022-07-22 00:48:22,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:48:22 WrapperNode [2022-07-22 00:48:22,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 00:48:22,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 00:48:22,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 00:48:22,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 00:48:22,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:48:22" (1/1) ... [2022-07-22 00:48:22,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:48:22" (1/1) ... [2022-07-22 00:48:22,967 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2022-07-22 00:48:22,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 00:48:22,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 00:48:22,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 00:48:22,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 00:48:22,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:48:22" (1/1) ... [2022-07-22 00:48:22,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:48:22" (1/1) ... [2022-07-22 00:48:22,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:48:22" (1/1) ... [2022-07-22 00:48:22,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:48:22" (1/1) ... [2022-07-22 00:48:22,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:48:22" (1/1) ... [2022-07-22 00:48:22,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:48:22" (1/1) ... [2022-07-22 00:48:22,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:48:22" (1/1) ... [2022-07-22 00:48:22,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 00:48:22,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 00:48:23,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 00:48:23,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 00:48:23,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:48:22" (1/1) ... [2022-07-22 00:48:23,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:48:23,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:48:23,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 00:48:23,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 00:48:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 00:48:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 00:48:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 00:48:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 00:48:23,148 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 00:48:23,149 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 00:48:23,279 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 00:48:23,286 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 00:48:23,287 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 00:48:23,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:48:23 BoogieIcfgContainer [2022-07-22 00:48:23,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 00:48:23,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 00:48:23,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 00:48:23,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 00:48:23,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:48:22" (1/3) ... [2022-07-22 00:48:23,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e4e112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:48:23, skipping insertion in model container [2022-07-22 00:48:23,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:48:22" (2/3) ... [2022-07-22 00:48:23,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e4e112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:48:23, skipping insertion in model container [2022-07-22 00:48:23,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:48:23" (3/3) ... [2022-07-22 00:48:23,300 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark15_conjunctive.i [2022-07-22 00:48:23,330 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 00:48:23,330 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-07-22 00:48:23,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 00:48:23,361 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@2dbcd900, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6a4089e4 [2022-07-22 00:48:23,362 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-22 00:48:23,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:48:23,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-22 00:48:23,367 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:48:23,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-22 00:48:23,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:48:23,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:48:23,371 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-07-22 00:48:23,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:48:23,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270995680] [2022-07-22 00:48:23,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:48:23,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:48:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 00:48:23,429 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 00:48:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 00:48:23,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 00:48:23,465 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 00:48:23,467 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-07-22 00:48:23,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-07-22 00:48:23,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-07-22 00:48:23,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-07-22 00:48:23,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-07-22 00:48:23,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-07-22 00:48:23,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-07-22 00:48:23,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-07-22 00:48:23,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 00:48:23,475 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-22 00:48:23,478 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 00:48:23,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 12:48:23 BoogieIcfgContainer [2022-07-22 00:48:23,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 00:48:23,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 00:48:23,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 00:48:23,498 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 00:48:23,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:48:23" (3/4) ... [2022-07-22 00:48:23,500 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 00:48:23,541 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 00:48:23,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 00:48:23,542 INFO L158 Benchmark]: Toolchain (without parser) took 824.07ms. Allocated memory is still 56.6MB. Free memory was 41.4MB in the beginning and 26.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-07-22 00:48:23,542 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 46.1MB. Free memory was 28.3MB in the beginning and 28.3MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:48:23,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.20ms. Allocated memory is still 56.6MB. Free memory was 41.2MB in the beginning and 40.4MB in the end (delta: 833.7kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 00:48:23,543 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.93ms. Allocated memory is still 56.6MB. Free memory was 40.4MB in the beginning and 38.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 00:48:23,543 INFO L158 Benchmark]: Boogie Preprocessor took 30.53ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.0MB in the end (delta: 890.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:48:23,544 INFO L158 Benchmark]: RCFGBuilder took 296.03ms. Allocated memory is still 56.6MB. Free memory was 37.9MB in the beginning and 28.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 00:48:23,544 INFO L158 Benchmark]: TraceAbstraction took 197.85ms. Allocated memory is still 56.6MB. Free memory was 27.9MB in the beginning and 28.0MB in the end (delta: -72.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:48:23,545 INFO L158 Benchmark]: Witness Printer took 43.51ms. Allocated memory is still 56.6MB. Free memory was 27.7MB in the beginning and 26.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 00:48:23,547 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 46.1MB. Free memory was 28.3MB in the beginning and 28.3MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.20ms. Allocated memory is still 56.6MB. Free memory was 41.2MB in the beginning and 40.4MB in the end (delta: 833.7kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.93ms. Allocated memory is still 56.6MB. Free memory was 40.4MB in the beginning and 38.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.53ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.0MB in the end (delta: 890.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 296.03ms. Allocated memory is still 56.6MB. Free memory was 37.9MB in the beginning and 28.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 197.85ms. Allocated memory is still 56.6MB. Free memory was 27.9MB in the beginning and 28.0MB in the end (delta: -72.7kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.51ms. Allocated memory is still 56.6MB. Free memory was 27.7MB in the beginning and 26.2MB in the end (delta: 1.5MB). 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: [L20] int low = __VERIFIER_nondet_int(); [L21] int mid = __VERIFIER_nondet_int(); [L22] int high = __VERIFIER_nondet_int(); [L23] low == 0 && mid >= 1 && high == 2*mid VAL [high=0, low=0, low == 0 && mid >= 1 && high == 2*mid=1, mid=1073741824] [L23] 2*mid VAL [high=0, low=0, low == 0 && mid >= 1 && high == 2*mid=1, mid=1073741824] - 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: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: 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, 27 locations, 8 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=27occurred 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! [2022-07-22 00:48:23,575 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)