./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/signedintegeroverflow-regression/PostfixIncrement.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 791161d1 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/signedintegeroverflow-regression/PostfixIncrement.i -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 eca696f473a749bd7bb8ef4ffbc9c57484da89b7c22756c4a78744a89ac76b38 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 13:16:41,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 13:16:41,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 13:16:41,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 13:16:41,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 13:16:41,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 13:16:41,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 13:16:41,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 13:16:41,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 13:16:41,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 13:16:41,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 13:16:41,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 13:16:41,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 13:16:41,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 13:16:41,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 13:16:41,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 13:16:41,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 13:16:41,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 13:16:41,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 13:16:41,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 13:16:41,903 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 13:16:41,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 13:16:41,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 13:16:41,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 13:16:41,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 13:16:41,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 13:16:41,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 13:16:41,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 13:16:41,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 13:16:41,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 13:16:41,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 13:16:41,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 13:16:41,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 13:16:41,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 13:16:41,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 13:16:41,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 13:16:41,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 13:16:41,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 13:16:41,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 13:16:41,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 13:16:41,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 13:16:41,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 13:16:41,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-23 13:16:41,947 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 13:16:41,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 13:16:41,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 13:16:41,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 13:16:41,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 13:16:41,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 13:16:41,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 13:16:41,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 13:16:41,950 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 13:16:41,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 13:16:41,951 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 13:16:41,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 13:16:41,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 13:16:41,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 13:16:41,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 13:16:41,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 13:16:41,952 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-23 13:16:41,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 13:16:41,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 13:16:41,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 13:16:41,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 13:16:41,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 13:16:41,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 13:16:41,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:16:41,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 13:16:41,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 13:16:41,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 13:16:41,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 13:16:41,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 13:16:41,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 13:16:41,956 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eca696f473a749bd7bb8ef4ffbc9c57484da89b7c22756c4a78744a89ac76b38 [2022-07-23 13:16:42,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 13:16:42,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 13:16:42,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 13:16:42,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 13:16:42,228 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 13:16:42,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/signedintegeroverflow-regression/PostfixIncrement.i [2022-07-23 13:16:42,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37e134e8f/e5edb63ccc9148eea0fb56aa6fa112e7/FLAGd59a7fdd0 [2022-07-23 13:16:42,718 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 13:16:42,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/signedintegeroverflow-regression/PostfixIncrement.i [2022-07-23 13:16:42,729 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37e134e8f/e5edb63ccc9148eea0fb56aa6fa112e7/FLAGd59a7fdd0 [2022-07-23 13:16:42,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37e134e8f/e5edb63ccc9148eea0fb56aa6fa112e7 [2022-07-23 13:16:42,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 13:16:42,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 13:16:42,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 13:16:42,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 13:16:42,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 13:16:42,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:16:42" (1/1) ... [2022-07-23 13:16:42,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57bc4a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:42, skipping insertion in model container [2022-07-23 13:16:42,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:16:42" (1/1) ... [2022-07-23 13:16:42,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 13:16:42,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 13:16:43,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:16:43,029 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 13:16:43,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:16:43,080 INFO L208 MainTranslator]: Completed translation [2022-07-23 13:16:43,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:43 WrapperNode [2022-07-23 13:16:43,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 13:16:43,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 13:16:43,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 13:16:43,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 13:16:43,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:43" (1/1) ... [2022-07-23 13:16:43,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:43" (1/1) ... [2022-07-23 13:16:43,114 INFO L137 Inliner]: procedures = 109, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-07-23 13:16:43,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 13:16:43,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 13:16:43,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 13:16:43,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 13:16:43,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:43" (1/1) ... [2022-07-23 13:16:43,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:43" (1/1) ... [2022-07-23 13:16:43,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:43" (1/1) ... [2022-07-23 13:16:43,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:43" (1/1) ... [2022-07-23 13:16:43,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:43" (1/1) ... [2022-07-23 13:16:43,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:43" (1/1) ... [2022-07-23 13:16:43,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:43" (1/1) ... [2022-07-23 13:16:43,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 13:16:43,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 13:16:43,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 13:16:43,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 13:16:43,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:43" (1/1) ... [2022-07-23 13:16:43,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:16:43,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:16:43,189 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) [2022-07-23 13:16:43,230 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 [2022-07-23 13:16:43,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 13:16:43,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 13:16:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 13:16:43,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 13:16:43,313 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 13:16:43,314 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 13:16:43,376 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 13:16:43,379 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 13:16:43,380 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 13:16:43,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:16:43 BoogieIcfgContainer [2022-07-23 13:16:43,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 13:16:43,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 13:16:43,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 13:16:43,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 13:16:43,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:16:42" (1/3) ... [2022-07-23 13:16:43,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ace000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:16:43, skipping insertion in model container [2022-07-23 13:16:43,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:43" (2/3) ... [2022-07-23 13:16:43,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ace000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:16:43, skipping insertion in model container [2022-07-23 13:16:43,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:16:43" (3/3) ... [2022-07-23 13:16:43,389 INFO L111 eAbstractionObserver]: Analyzing ICFG PostfixIncrement.i [2022-07-23 13:16:43,402 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 13:16:43,402 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-23 13:16:43,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 13:16:43,449 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@5127dd15, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@10b70c69 [2022-07-23 13:16:43,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-23 13:16:43,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 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) [2022-07-23 13:16:43,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-23 13:16:43,458 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:16:43,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-23 13:16:43,459 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-07-23 13:16:43,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:16:43,464 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2022-07-23 13:16:43,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:16:43,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016882061] [2022-07-23 13:16:43,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:16:43,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:16:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 13:16:43,548 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 13:16:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 13:16:43,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 13:16:43,575 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-23 13:16:43,576 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-07-23 13:16:43,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-07-23 13:16:43,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 13:16:43,581 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-23 13:16:43,585 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-23 13:16:43,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:16:43 BoogieIcfgContainer [2022-07-23 13:16:43,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-23 13:16:43,603 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 13:16:43,603 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 13:16:43,603 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 13:16:43,604 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:16:43" (3/4) ... [2022-07-23 13:16:43,605 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-23 13:16:43,630 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 13:16:43,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 13:16:43,634 INFO L158 Benchmark]: Toolchain (without parser) took 884.72ms. Allocated memory is still 125.8MB. Free memory was 96.4MB in the beginning and 69.1MB in the end (delta: 27.2MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-07-23 13:16:43,635 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 13:16:43,635 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.04ms. Allocated memory is still 125.8MB. Free memory was 96.4MB in the beginning and 94.7MB in the end (delta: 1.6MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-07-23 13:16:43,636 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.49ms. Allocated memory is still 125.8MB. Free memory was 94.7MB in the beginning and 93.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 13:16:43,637 INFO L158 Benchmark]: Boogie Preprocessor took 21.64ms. Allocated memory is still 125.8MB. Free memory was 93.1MB in the beginning and 92.3MB in the end (delta: 754.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 13:16:43,638 INFO L158 Benchmark]: RCFGBuilder took 243.06ms. Allocated memory is still 125.8MB. Free memory was 91.9MB in the beginning and 83.9MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 13:16:43,639 INFO L158 Benchmark]: TraceAbstraction took 218.74ms. Allocated memory is still 125.8MB. Free memory was 83.3MB in the beginning and 70.4MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-23 13:16:43,640 INFO L158 Benchmark]: Witness Printer took 27.72ms. Allocated memory is still 125.8MB. Free memory was 70.4MB in the beginning and 69.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 13:16:43,643 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 125.8MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.04ms. Allocated memory is still 125.8MB. Free memory was 96.4MB in the beginning and 94.7MB in the end (delta: 1.6MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.49ms. Allocated memory is still 125.8MB. Free memory was 94.7MB in the beginning and 93.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.64ms. Allocated memory is still 125.8MB. Free memory was 93.1MB in the beginning and 92.3MB in the end (delta: 754.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 243.06ms. Allocated memory is still 125.8MB. Free memory was 91.9MB in the beginning and 83.9MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 218.74ms. Allocated memory is still 125.8MB. Free memory was 83.3MB in the beginning and 70.4MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 27.72ms. Allocated memory is still 125.8MB. Free memory was 70.4MB in the beginning and 69.1MB in the end (delta: 1.2MB). There was no memory consumed. 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: 333]: integer overflow possible integer overflow possible We found a FailurePath: [L332] int x = 2147483647; [L333] x++ VAL [x=2147483647, x++=2147483647] - UnprovableResult [Line: 333]: 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, 9 locations, 2 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, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 3 NumberOfCodeBlocks, 3 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! [2022-07-23 13:16:43,689 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)