./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark29_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5317dae 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/benchmark29_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 8ea6dc0bafa5a28653d9fabe4d322befcb916956980332e0149835c6371af6a1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 04:08:09,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 04:08:09,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 04:08:09,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 04:08:09,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 04:08:09,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 04:08:09,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 04:08:09,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 04:08:09,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 04:08:09,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 04:08:09,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 04:08:09,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 04:08:09,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 04:08:09,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 04:08:09,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 04:08:09,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 04:08:09,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 04:08:09,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 04:08:09,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 04:08:09,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 04:08:09,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 04:08:09,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 04:08:09,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 04:08:09,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 04:08:09,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 04:08:09,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 04:08:09,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 04:08:09,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 04:08:09,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 04:08:09,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 04:08:09,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 04:08:09,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 04:08:09,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 04:08:09,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 04:08:09,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 04:08:09,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 04:08:09,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 04:08:09,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 04:08:09,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 04:08:09,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 04:08:09,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 04:08:09,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-16 04:08:09,427 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 04:08:09,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 04:08:09,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 04:08:09,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 04:08:09,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 04:08:09,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 04:08:09,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 04:08:09,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 04:08:09,429 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 04:08:09,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 04:08:09,430 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 04:08:09,430 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 04:08:09,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 04:08:09,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 04:08:09,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 04:08:09,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 04:08:09,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 04:08:09,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 04:08:09,431 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-16 04:08:09,431 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 04:08:09,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 04:08:09,431 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 04:08:09,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 04:08:09,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 04:08:09,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 04:08:09,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 04:08:09,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 04:08:09,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 04:08:09,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 04:08:09,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 04:08:09,433 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 04:08:09,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 04:08:09,433 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 04:08:09,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 04:08:09,433 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 04:08:09,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 04:08:09,433 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 04:08:09,434 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ea6dc0bafa5a28653d9fabe4d322befcb916956980332e0149835c6371af6a1 [2023-02-16 04:08:09,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 04:08:09,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 04:08:09,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 04:08:09,648 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 04:08:09,648 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 04:08:09,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark29_linear.i [2023-02-16 04:08:10,657 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 04:08:10,837 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 04:08:10,837 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark29_linear.i [2023-02-16 04:08:10,841 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dad5ff8f6/3731affc3aa14e7cb4cdd19e3fbb2587/FLAGb48293515 [2023-02-16 04:08:10,850 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dad5ff8f6/3731affc3aa14e7cb4cdd19e3fbb2587 [2023-02-16 04:08:10,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 04:08:10,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 04:08:10,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 04:08:10,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 04:08:10,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 04:08:10,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:08:10" (1/1) ... [2023-02-16 04:08:10,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ddc6f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:10, skipping insertion in model container [2023-02-16 04:08:10,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:08:10" (1/1) ... [2023-02-16 04:08:10,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 04:08:10,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 04:08:10,991 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/benchmark29_linear.i[868,881] [2023-02-16 04:08:11,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:08:11,009 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 04:08:11,018 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/benchmark29_linear.i[868,881] [2023-02-16 04:08:11,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:08:11,032 INFO L208 MainTranslator]: Completed translation [2023-02-16 04:08:11,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:11 WrapperNode [2023-02-16 04:08:11,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 04:08:11,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 04:08:11,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 04:08:11,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 04:08:11,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:11" (1/1) ... [2023-02-16 04:08:11,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:11" (1/1) ... [2023-02-16 04:08:11,057 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2023-02-16 04:08:11,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 04:08:11,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 04:08:11,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 04:08:11,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 04:08:11,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:11" (1/1) ... [2023-02-16 04:08:11,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:11" (1/1) ... [2023-02-16 04:08:11,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:11" (1/1) ... [2023-02-16 04:08:11,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:11" (1/1) ... [2023-02-16 04:08:11,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:11" (1/1) ... [2023-02-16 04:08:11,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:11" (1/1) ... [2023-02-16 04:08:11,075 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:11" (1/1) ... [2023-02-16 04:08:11,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:11" (1/1) ... [2023-02-16 04:08:11,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 04:08:11,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 04:08:11,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 04:08:11,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 04:08:11,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:11" (1/1) ... [2023-02-16 04:08:11,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 04:08:11,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:08:11,107 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) [2023-02-16 04:08:11,108 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 [2023-02-16 04:08:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 04:08:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 04:08:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 04:08:11,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 04:08:11,176 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 04:08:11,178 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 04:08:11,297 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 04:08:11,301 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 04:08:11,302 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-16 04:08:11,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:08:11 BoogieIcfgContainer [2023-02-16 04:08:11,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 04:08:11,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 04:08:11,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 04:08:11,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 04:08:11,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 04:08:10" (1/3) ... [2023-02-16 04:08:11,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e3ba55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:08:11, skipping insertion in model container [2023-02-16 04:08:11,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:11" (2/3) ... [2023-02-16 04:08:11,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e3ba55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:08:11, skipping insertion in model container [2023-02-16 04:08:11,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:08:11" (3/3) ... [2023-02-16 04:08:11,325 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark29_linear.i [2023-02-16 04:08:11,335 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 04:08:11,335 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-16 04:08:11,393 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 04:08:11,399 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;@3873529a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 04:08:11,400 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-16 04:08:11,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.6) internal successors, (24), 19 states have internal predecessors, (24), 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) [2023-02-16 04:08:11,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-16 04:08:11,407 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:08:11,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-16 04:08:11,408 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-16 04:08:11,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:08:11,416 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-16 04:08:11,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:08:11,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708169251] [2023-02-16 04:08:11,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:08:11,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:08:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:08:11,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:08:11,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:08:11,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708169251] [2023-02-16 04:08:11,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708169251] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:08:11,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:08:11,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:08:11,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335981658] [2023-02-16 04:08:11,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:08:11,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:08:11,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:08:11,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:08:11,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:08:11,610 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.6) internal successors, (24), 19 states have internal predecessors, (24), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-02-16 04:08:11,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:08:11,649 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2023-02-16 04:08:11,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:08:11,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2023-02-16 04:08:11,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:08:11,657 INFO L225 Difference]: With dead ends: 32 [2023-02-16 04:08:11,657 INFO L226 Difference]: Without dead ends: 13 [2023-02-16 04:08:11,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:08:11,663 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 16 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:08:11,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 13 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:08:11,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-16 04:08:11,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-16 04:08:11,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.3) internal successors, (13), 12 states have internal predecessors, (13), 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) [2023-02-16 04:08:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-02-16 04:08:11,689 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 5 [2023-02-16 04:08:11,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:08:11,689 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-02-16 04:08:11,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-02-16 04:08:11,690 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-02-16 04:08:11,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-16 04:08:11,690 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:08:11,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-16 04:08:11,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-16 04:08:11,691 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-16 04:08:11,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:08:11,691 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2023-02-16 04:08:11,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:08:11,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738062111] [2023-02-16 04:08:11,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:08:11,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:08:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:08:11,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:08:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:08:11,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:08:11,728 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-16 04:08:11,729 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-02-16 04:08:11,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-02-16 04:08:11,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-02-16 04:08:11,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-02-16 04:08:11,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 04:08:11,734 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-02-16 04:08:11,736 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-16 04:08:11,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 04:08:11 BoogieIcfgContainer [2023-02-16 04:08:11,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-16 04:08:11,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 04:08:11,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 04:08:11,757 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 04:08:11,758 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:08:11" (3/4) ... [2023-02-16 04:08:11,759 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-16 04:08:11,785 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-16 04:08:11,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 04:08:11,786 INFO L158 Benchmark]: Toolchain (without parser) took 933.31ms. Allocated memory is still 130.0MB. Free memory was 101.1MB in the beginning and 51.9MB in the end (delta: 49.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-02-16 04:08:11,786 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory was 47.1MB in the beginning and 47.0MB in the end (delta: 110.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:08:11,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.60ms. Allocated memory is still 130.0MB. Free memory was 100.6MB in the beginning and 90.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-16 04:08:11,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.54ms. Allocated memory is still 130.0MB. Free memory was 90.8MB in the beginning and 89.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:08:11,787 INFO L158 Benchmark]: Boogie Preprocessor took 22.13ms. Allocated memory is still 130.0MB. Free memory was 89.6MB in the beginning and 88.7MB in the end (delta: 944.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 04:08:11,787 INFO L158 Benchmark]: RCFGBuilder took 222.64ms. Allocated memory is still 130.0MB. Free memory was 88.1MB in the beginning and 78.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-16 04:08:11,787 INFO L158 Benchmark]: TraceAbstraction took 449.69ms. Allocated memory is still 130.0MB. Free memory was 78.2MB in the beginning and 53.6MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-02-16 04:08:11,787 INFO L158 Benchmark]: Witness Printer took 28.79ms. Allocated memory is still 130.0MB. Free memory was 53.6MB in the beginning and 51.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 04:08:11,789 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory was 47.1MB in the beginning and 47.0MB in the end (delta: 110.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.60ms. Allocated memory is still 130.0MB. Free memory was 100.6MB in the beginning and 90.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.54ms. Allocated memory is still 130.0MB. Free memory was 90.8MB in the beginning and 89.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.13ms. Allocated memory is still 130.0MB. Free memory was 89.6MB in the beginning and 88.7MB in the end (delta: 944.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 222.64ms. Allocated memory is still 130.0MB. Free memory was 88.1MB in the beginning and 78.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 449.69ms. Allocated memory is still 130.0MB. Free memory was 78.2MB in the beginning and 53.6MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 28.79ms. Allocated memory is still 130.0MB. Free memory was 53.6MB in the beginning and 51.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(x