./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark27_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a31fd051 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/benchmark27_linear.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 917374027b639c45b575eeb17a4ba7670f94886b4db7d6a64e3f533dbd0231cc --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 13:49:32,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 13:49:32,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 13:49:32,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 13:49:32,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 13:49:32,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 13:49:32,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 13:49:32,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 13:49:32,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 13:49:32,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 13:49:32,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 13:49:32,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 13:49:32,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 13:49:32,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 13:49:32,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 13:49:32,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 13:49:32,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 13:49:32,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 13:49:32,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 13:49:32,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 13:49:32,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 13:49:32,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 13:49:32,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 13:49:32,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 13:49:32,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 13:49:32,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 13:49:32,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 13:49:32,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 13:49:32,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 13:49:32,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 13:49:32,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 13:49:32,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 13:49:32,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 13:49:32,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 13:49:32,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 13:49:32,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 13:49:32,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 13:49:32,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 13:49:32,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 13:49:32,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 13:49:32,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 13:49:32,605 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 13:49:32,637 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 13:49:32,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 13:49:32,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 13:49:32,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 13:49:32,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 13:49:32,639 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 13:49:32,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 13:49:32,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 13:49:32,640 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 13:49:32,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 13:49:32,641 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 13:49:32,641 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 13:49:32,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 13:49:32,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 13:49:32,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 13:49:32,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 13:49:32,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 13:49:32,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 13:49:32,642 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 13:49:32,643 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 13:49:32,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 13:49:32,643 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 13:49:32,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 13:49:32,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 13:49:32,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 13:49:32,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 13:49:32,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:49:32,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 13:49:32,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 13:49:32,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 13:49:32,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 13:49:32,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 13:49:32,645 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 13:49:32,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 13:49:32,646 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 13:49:32,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 13:49:32,646 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 13:49:32,646 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 917374027b639c45b575eeb17a4ba7670f94886b4db7d6a64e3f533dbd0231cc [2023-02-15 13:49:32,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 13:49:32,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 13:49:32,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 13:49:32,898 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 13:49:32,899 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 13:49:32,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark27_linear.i [2023-02-15 13:49:34,076 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 13:49:34,287 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 13:49:34,287 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark27_linear.i [2023-02-15 13:49:34,299 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffa5ca549/552b8bc9c58740dcbddcb490f4efbdd5/FLAGa12e7455f [2023-02-15 13:49:34,312 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffa5ca549/552b8bc9c58740dcbddcb490f4efbdd5 [2023-02-15 13:49:34,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 13:49:34,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 13:49:34,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 13:49:34,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 13:49:34,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 13:49:34,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:49:34" (1/1) ... [2023-02-15 13:49:34,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f1df09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:34, skipping insertion in model container [2023-02-15 13:49:34,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:49:34" (1/1) ... [2023-02-15 13:49:34,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 13:49:34,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 13:49:34,460 WARN L237 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/benchmark27_linear.i[868,881] [2023-02-15 13:49:34,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:49:34,477 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 13:49:34,486 WARN L237 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/benchmark27_linear.i[868,881] [2023-02-15 13:49:34,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:49:34,499 INFO L208 MainTranslator]: Completed translation [2023-02-15 13:49:34,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:34 WrapperNode [2023-02-15 13:49:34,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 13:49:34,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 13:49:34,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 13:49:34,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 13:49:34,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:34" (1/1) ... [2023-02-15 13:49:34,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:34" (1/1) ... [2023-02-15 13:49:34,525 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2023-02-15 13:49:34,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 13:49:34,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 13:49:34,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 13:49:34,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 13:49:34,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:34" (1/1) ... [2023-02-15 13:49:34,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:34" (1/1) ... [2023-02-15 13:49:34,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:34" (1/1) ... [2023-02-15 13:49:34,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:34" (1/1) ... [2023-02-15 13:49:34,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:34" (1/1) ... [2023-02-15 13:49:34,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:34" (1/1) ... [2023-02-15 13:49:34,539 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:34" (1/1) ... [2023-02-15 13:49:34,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:34" (1/1) ... [2023-02-15 13:49:34,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 13:49:34,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 13:49:34,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 13:49:34,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 13:49:34,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:34" (1/1) ... [2023-02-15 13:49:34,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:49:34,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:49:34,573 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) [2023-02-15 13:49:34,574 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 [2023-02-15 13:49:34,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 13:49:34,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 13:49:34,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 13:49:34,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 13:49:34,654 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 13:49:34,655 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 13:49:34,805 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 13:49:34,810 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 13:49:34,811 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 13:49:34,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:49:34 BoogieIcfgContainer [2023-02-15 13:49:34,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 13:49:34,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 13:49:34,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 13:49:34,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 13:49:34,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:49:34" (1/3) ... [2023-02-15 13:49:34,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3000c1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:49:34, skipping insertion in model container [2023-02-15 13:49:34,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:34" (2/3) ... [2023-02-15 13:49:34,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3000c1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:49:34, skipping insertion in model container [2023-02-15 13:49:34,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:49:34" (3/3) ... [2023-02-15 13:49:34,836 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark27_linear.i [2023-02-15 13:49:34,852 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 13:49:34,869 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-15 13:49:34,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 13:49:34,942 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=PETRI_NET, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4656e637, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 13:49:34,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-15 13:49:34,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.6875) internal successors, (27), 22 states have internal predecessors, (27), 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) [2023-02-15 13:49:34,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-15 13:49:34,952 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:34,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-15 13:49:34,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:49:34,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:34,965 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2023-02-15 13:49:34,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:34,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144928571] [2023-02-15 13:49:34,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:34,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 13:49:35,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 13:49:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 13:49:35,104 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 13:49:35,106 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 13:49:35,107 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-02-15 13:49:35,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-02-15 13:49:35,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-02-15 13:49:35,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-02-15 13:49:35,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-02-15 13:49:35,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-02-15 13:49:35,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 13:49:35,115 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-02-15 13:49:35,120 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 13:49:35,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 01:49:35 BoogieIcfgContainer [2023-02-15 13:49:35,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 13:49:35,142 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 13:49:35,143 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 13:49:35,143 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 13:49:35,144 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:49:34" (3/4) ... [2023-02-15 13:49:35,146 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-15 13:49:35,188 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 13:49:35,195 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 13:49:35,197 INFO L158 Benchmark]: Toolchain (without parser) took 877.79ms. Allocated memory is still 125.8MB. Free memory was 94.6MB in the beginning and 56.3MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-02-15 13:49:35,198 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:49:35,198 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.99ms. Allocated memory is still 125.8MB. Free memory was 94.6MB in the beginning and 84.6MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 13:49:35,200 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.35ms. Allocated memory is still 125.8MB. Free memory was 84.6MB in the beginning and 83.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:49:35,201 INFO L158 Benchmark]: Boogie Preprocessor took 15.39ms. Allocated memory is still 125.8MB. Free memory was 83.2MB in the beginning and 82.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 13:49:35,202 INFO L158 Benchmark]: RCFGBuilder took 287.00ms. Allocated memory is still 125.8MB. Free memory was 82.0MB in the beginning and 72.0MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 13:49:35,203 INFO L158 Benchmark]: TraceAbstraction took 309.61ms. Allocated memory is still 125.8MB. Free memory was 71.5MB in the beginning and 58.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-15 13:49:35,203 INFO L158 Benchmark]: Witness Printer took 53.26ms. Allocated memory is still 125.8MB. Free memory was 58.1MB in the beginning and 56.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 13:49:35,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.99ms. Allocated memory is still 125.8MB. Free memory was 94.6MB in the beginning and 84.6MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.35ms. Allocated memory is still 125.8MB. Free memory was 84.6MB in the beginning and 83.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.39ms. Allocated memory is still 125.8MB. Free memory was 83.2MB in the beginning and 82.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 287.00ms. Allocated memory is still 125.8MB. Free memory was 82.0MB in the beginning and 72.0MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 309.61ms. Allocated memory is still 125.8MB. Free memory was 71.5MB in the beginning and 58.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 53.26ms. Allocated memory is still 125.8MB. Free memory was 58.1MB in the beginning and 56.3MB in the end (delta: 1.7MB). 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 i = __VERIFIER_nondet_int(); [L21] int j = __VERIFIER_nondet_int(); [L22] int k = __VERIFIER_nondet_int(); [L23] ii-j VAL [i=-2147483648, ii-j=1, j=1, k=0] [L23] i-j VAL [i=-2147483648, ii-j=1, j=1, k=0] - 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 6 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=23occurred 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! [2023-02-15 13:49:35,224 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)