./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron2.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron2.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 8e3da8e136e857b97cdbe06990b92cea6643ce21aabb77dab8b279b5edf1dc64 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:04:38,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:04:38,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:04:38,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:04:38,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:04:38,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:04:38,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:04:38,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:04:38,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:04:38,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:04:38,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:04:38,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:04:38,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:04:38,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:04:38,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:04:38,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:04:38,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:04:38,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:04:38,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:04:38,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:04:38,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:04:38,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:04:38,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:04:38,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:04:38,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:04:38,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:04:38,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:04:38,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:04:38,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:04:38,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:04:38,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:04:38,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:04:38,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:04:38,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:04:38,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:04:38,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:04:38,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:04:38,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:04:38,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:04:38,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:04:38,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:04:38,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-02-21 03:04:38,910 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:04:38,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:04:38,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:04:38,913 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:04:38,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-21 03:04:38,914 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-21 03:04:38,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:04:38,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:04:38,915 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:04:38,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:04:38,916 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:04:38,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:04:38,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:04:38,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-21 03:04:38,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-21 03:04:38,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-21 03:04:38,917 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-02-21 03:04:38,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:04:38,918 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:04:38,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-21 03:04:38,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:04:38,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:04:38,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-21 03:04:38,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-21 03:04:38,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:04:38,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-21 03:04:38,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-21 03:04:38,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:04:38,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-21 03:04:38,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-21 03:04:38,920 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e3da8e136e857b97cdbe06990b92cea6643ce21aabb77dab8b279b5edf1dc64 [2022-02-21 03:04:39,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:04:39,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:04:39,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:04:39,163 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:04:39,164 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:04:39,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron2.c [2022-02-21 03:04:39,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594779565/6b71cd90364e4205b343ec6604ce4c7a/FLAG8a68e2210 [2022-02-21 03:04:39,599 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:04:39,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron2.c [2022-02-21 03:04:39,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594779565/6b71cd90364e4205b343ec6604ce4c7a/FLAG8a68e2210 [2022-02-21 03:04:39,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594779565/6b71cd90364e4205b343ec6604ce4c7a [2022-02-21 03:04:39,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:04:39,627 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:04:39,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:04:39,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:04:39,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:04:39,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:04:39" (1/1) ... [2022-02-21 03:04:39,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69290ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:04:39, skipping insertion in model container [2022-02-21 03:04:39,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:04:39" (1/1) ... [2022-02-21 03:04:39,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:04:39,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:04:39,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:04:39,770 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:04:39,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:04:39,812 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:04:39,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:04:39 WrapperNode [2022-02-21 03:04:39,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:04:39,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:04:39,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:04:39,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:04:39,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:04:39" (1/1) ... [2022-02-21 03:04:39,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:04:39" (1/1) ... [2022-02-21 03:04:39,835 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2022-02-21 03:04:39,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:04:39,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:04:39,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:04:39,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:04:39,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:04:39" (1/1) ... [2022-02-21 03:04:39,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:04:39" (1/1) ... [2022-02-21 03:04:39,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:04:39" (1/1) ... [2022-02-21 03:04:39,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:04:39" (1/1) ... [2022-02-21 03:04:39,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:04:39" (1/1) ... [2022-02-21 03:04:39,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:04:39" (1/1) ... [2022-02-21 03:04:39,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:04:39" (1/1) ... [2022-02-21 03:04:39,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:04:39,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:04:39,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:04:39,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:04:39,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:04:39" (1/1) ... [2022-02-21 03:04:39,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-21 03:04:39,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:04:39,888 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) [2022-02-21 03:04:39,896 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 [2022-02-21 03:04:39,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:04:39,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:04:39,961 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:04:39,963 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:04:40,100 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:04:40,106 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:04:40,107 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 03:04:40,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:04:40 BoogieIcfgContainer [2022-02-21 03:04:40,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:04:40,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-21 03:04:40,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-21 03:04:40,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-21 03:04:40,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:04:39" (1/3) ... [2022-02-21 03:04:40,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fabbfe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:04:40, skipping insertion in model container [2022-02-21 03:04:40,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:04:39" (2/3) ... [2022-02-21 03:04:40,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fabbfe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:04:40, skipping insertion in model container [2022-02-21 03:04:40,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:04:40" (3/3) ... [2022-02-21 03:04:40,116 INFO L111 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-aaron2.c [2022-02-21 03:04:40,119 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-21 03:04:40,120 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-02-21 03:04:40,163 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-21 03:04:40,168 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, 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-21 03:04:40,168 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-02-21 03:04:40,180 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 states have internal predecessors, (26), 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) [2022-02-21 03:04:40,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-02-21 03:04:40,184 INFO L506 BasicCegarLoop]: Found error trace [2022-02-21 03:04:40,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-02-21 03:04:40,185 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-02-21 03:04:40,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:04:40,189 INFO L85 PathProgramCache]: Analyzing trace with hash 28700073, now seen corresponding path program 1 times [2022-02-21 03:04:40,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:04:40,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867845840] [2022-02-21 03:04:40,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:04:40,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:04:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:04:40,300 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:04:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:04:40,333 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:04:40,335 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-21 03:04:40,337 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-02-21 03:04:40,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-02-21 03:04:40,340 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-02-21 03:04:40,340 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-02-21 03:04:40,341 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-02-21 03:04:40,341 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-02-21 03:04:40,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-02-21 03:04:40,352 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-02-21 03:04:40,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-21 03:04:40,366 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-21 03:04:40,369 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-21 03:04:40,391 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-21 03:04:40,391 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-21 03:04:40,392 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2022-02-21 03:04:40,392 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2022-02-21 03:04:40,392 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2022-02-21 03:04:40,392 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2022-02-21 03:04:40,393 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-02-21 03:04:40,393 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-02-21 03:04:40,393 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2022-02-21 03:04:40,393 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2022-02-21 03:04:40,394 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2022-02-21 03:04:40,394 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2022-02-21 03:04:40,394 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2022-02-21 03:04:40,395 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-21 03:04:40,395 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2022-02-21 03:04:40,395 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2022-02-21 03:04:40,395 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2022-02-21 03:04:40,396 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2022-02-21 03:04:40,396 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2022-02-21 03:04:40,396 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2022-02-21 03:04:40,396 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2022-02-21 03:04:40,397 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2022-02-21 03:04:40,397 WARN L170 areAnnotationChecker]: L17-3 has no Hoare annotation [2022-02-21 03:04:40,397 WARN L170 areAnnotationChecker]: L17-3 has no Hoare annotation [2022-02-21 03:04:40,397 WARN L170 areAnnotationChecker]: L19-3 has no Hoare annotation [2022-02-21 03:04:40,397 WARN L170 areAnnotationChecker]: L19-3 has no Hoare annotation [2022-02-21 03:04:40,397 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-21 03:04:40,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:04:40 BoogieIcfgContainer [2022-02-21 03:04:40,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-21 03:04:40,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:04:40,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:04:40,403 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:04:40,404 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:04:40" (3/4) ... [2022-02-21 03:04:40,406 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-02-21 03:04:40,445 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 03:04:40,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:04:40,450 INFO L158 Benchmark]: Toolchain (without parser) took 820.55ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 44.2MB in the beginning and 69.6MB in the end (delta: -25.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:04:40,452 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 79.7MB. Free memory was 60.2MB in the beginning and 60.1MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:04:40,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.43ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 44.0MB in the beginning and 74.4MB in the end (delta: -30.4MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2022-02-21 03:04:40,454 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.38ms. Allocated memory is still 96.5MB. Free memory was 74.2MB in the beginning and 72.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:04:40,454 INFO L158 Benchmark]: Boogie Preprocessor took 13.22ms. Allocated memory is still 96.5MB. Free memory was 72.8MB in the beginning and 71.9MB in the end (delta: 870.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:04:40,454 INFO L158 Benchmark]: RCFGBuilder took 258.49ms. Allocated memory is still 96.5MB. Free memory was 71.9MB in the beginning and 60.7MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 03:04:40,455 INFO L158 Benchmark]: TraceAbstraction took 289.18ms. Allocated memory is still 96.5MB. Free memory was 60.3MB in the beginning and 71.0MB in the end (delta: -10.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-02-21 03:04:40,456 INFO L158 Benchmark]: Witness Printer took 43.11ms. Allocated memory is still 96.5MB. Free memory was 71.0MB in the beginning and 69.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:04:40,460 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 79.7MB. Free memory was 60.2MB in the beginning and 60.1MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.43ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 44.0MB in the beginning and 74.4MB in the end (delta: -30.4MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.38ms. Allocated memory is still 96.5MB. Free memory was 74.2MB in the beginning and 72.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.22ms. Allocated memory is still 96.5MB. Free memory was 72.8MB in the beginning and 71.9MB in the end (delta: 870.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 258.49ms. Allocated memory is still 96.5MB. Free memory was 71.9MB in the beginning and 60.7MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 289.18ms. Allocated memory is still 96.5MB. Free memory was 60.3MB in the beginning and 71.0MB in the end (delta: -10.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 43.11ms. Allocated memory is still 96.5MB. Free memory was 71.0MB in the beginning and 69.6MB in the end (delta: 1.4MB). 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: [L12] int tx = __VERIFIER_nondet_int(); [L13] int x = __VERIFIER_nondet_int(); [L14] int y = __VERIFIER_nondet_int(); [L15] COND TRUE x >= y && tx >= 0 [L16] COND FALSE !(__VERIFIER_nondet_int()) [L19] y + 1 VAL [tx=0, x=2147483647, y=2147483647] - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - 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: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: 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, 24 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 5 NumberOfCodeBlocks, 5 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! [2022-02-21 03:04:40,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)