./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMin.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 54858612 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/AdditionIntMin.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 8586441a08b46391c3ae26469a94ac820a4b60b0 ..................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:02:02,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:02:02,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:02:02,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:02:02,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:02:02,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:02:02,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:02:02,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:02:02,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:02:02,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:02:02,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:02:02,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:02:02,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:02:02,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:02:02,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:02:02,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:02:02,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:02:02,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:02:02,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:02:02,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:02:02,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:02:02,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:02:02,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:02:02,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:02:02,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:02:02,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:02:02,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:02:02,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:02:02,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:02:02,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:02:02,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:02:02,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:02:02,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:02:02,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:02:02,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:02:02,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:02:02,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:02:02,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:02:02,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:02:02,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:02:02,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:02:02,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:02:02,445 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:02:02,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:02:02,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:02:02,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:02:02,450 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:02:02,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:02:02,451 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:02:02,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:02:02,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:02:02,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:02:02,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:02:02,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:02:02,454 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:02:02,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:02:02,454 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:02:02,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:02:02,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:02:02,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:02:02,456 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:02:02,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:02:02,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:02:02,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:02:02,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:02:02,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:02:02,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:02:02,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:02:02,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:02:02,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:02:02,458 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8586441a08b46391c3ae26469a94ac820a4b60b0 [2020-10-26 04:02:02,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:02:02,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:02:02,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:02:02,963 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:02:02,964 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:02:02,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMin.i [2020-10-26 04:02:03,058 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba72454ce/35fdf6e7a61d4f688e4f5eada8919ad2/FLAG5f81417e0 [2020-10-26 04:02:03,899 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:02:03,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMin.i [2020-10-26 04:02:03,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba72454ce/35fdf6e7a61d4f688e4f5eada8919ad2/FLAG5f81417e0 [2020-10-26 04:02:04,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba72454ce/35fdf6e7a61d4f688e4f5eada8919ad2 [2020-10-26 04:02:04,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:02:04,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:02:04,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:02:04,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:02:04,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:02:04,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:02:04" (1/1) ... [2020-10-26 04:02:04,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18d5694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:04, skipping insertion in model container [2020-10-26 04:02:04,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:02:04" (1/1) ... [2020-10-26 04:02:04,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:02:04,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:02:04,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:02:04,646 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:02:04,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:02:04,787 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:02:04,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:04 WrapperNode [2020-10-26 04:02:04,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:02:04,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:02:04,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:02:04,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:02:04,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:04" (1/1) ... [2020-10-26 04:02:04,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:04" (1/1) ... [2020-10-26 04:02:04,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:02:04,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:02:04,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:02:04,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:02:04,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:04" (1/1) ... [2020-10-26 04:02:04,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:04" (1/1) ... [2020-10-26 04:02:04,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:04" (1/1) ... [2020-10-26 04:02:04,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:04" (1/1) ... [2020-10-26 04:02:04,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:04" (1/1) ... [2020-10-26 04:02:04,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:04" (1/1) ... [2020-10-26 04:02:04,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:04" (1/1) ... [2020-10-26 04:02:04,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:02:04,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:02:04,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:02:04,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:02:04,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:02:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:02:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 04:02:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:02:05,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:02:05,453 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:02:05,454 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-26 04:02:05,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:05 BoogieIcfgContainer [2020-10-26 04:02:05,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:02:05,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:02:05,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:02:05,471 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:02:05,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:02:04" (1/3) ... [2020-10-26 04:02:05,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dfcca10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:02:05, skipping insertion in model container [2020-10-26 04:02:05,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:04" (2/3) ... [2020-10-26 04:02:05,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dfcca10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:02:05, skipping insertion in model container [2020-10-26 04:02:05,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:05" (3/3) ... [2020-10-26 04:02:05,483 INFO L111 eAbstractionObserver]: Analyzing ICFG AdditionIntMin.i [2020-10-26 04:02:05,516 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:02:05,529 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-26 04:02:05,563 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-26 04:02:05,595 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:02:05,596 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:02:05,596 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:02:05,596 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:02:05,596 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:02:05,597 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:02:05,597 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:02:05,597 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:02:05,624 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-10-26 04:02:05,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-26 04:02:05,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:05,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-26 04:02:05,634 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:02:05,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:05,643 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2020-10-26 04:02:05,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:05,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704788905] [2020-10-26 04:02:05,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:05,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:05,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704788905] [2020-10-26 04:02:05,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:02:05,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:02:05,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293872000] [2020-10-26 04:02:05,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:02:05,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:05,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:02:05,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:02:05,930 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2020-10-26 04:02:05,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:05,958 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-10-26 04:02:05,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:02:05,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-26 04:02:05,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:05,970 INFO L225 Difference]: With dead ends: 13 [2020-10-26 04:02:05,970 INFO L226 Difference]: Without dead ends: 5 [2020-10-26 04:02:05,973 INFO L677 BasicCegarLoop]: 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 [2020-10-26 04:02:05,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2020-10-26 04:02:06,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-10-26 04:02:06,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-26 04:02:06,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions. [2020-10-26 04:02:06,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 3 [2020-10-26 04:02:06,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:06,009 INFO L481 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions. [2020-10-26 04:02:06,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:02:06,009 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2020-10-26 04:02:06,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-26 04:02:06,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:06,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-26 04:02:06,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:02:06,011 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:02:06,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:06,012 INFO L82 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2020-10-26 04:02:06,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:06,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751326364] [2020-10-26 04:02:06,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:02:06,030 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:02:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:02:06,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:02:06,061 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:02:06,062 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 04:02:06,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 04:02:06,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:02:06 BoogieIcfgContainer [2020-10-26 04:02:06,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:02:06,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:02:06,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:02:06,085 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:02:06,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:05" (3/4) ... [2020-10-26 04:02:06,088 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-26 04:02:06,123 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:02:06,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:02:06,126 INFO L168 Benchmark]: Toolchain (without parser) took 1948.03 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.8 MB in the beginning and 25.8 MB in the end (delta: -5.0 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:06,127 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 35.7 MB. Free memory was 22.3 MB in the beginning and 22.2 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:06,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 591.61 ms. Allocated memory is still 44.0 MB. Free memory was 29.0 MB in the beginning and 20.2 MB in the end (delta: 8.8 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:06,129 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.99 ms. Allocated memory is still 44.0 MB. Free memory was 20.2 MB in the beginning and 18.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:06,130 INFO L168 Benchmark]: Boogie Preprocessor took 49.83 ms. Allocated memory is still 44.0 MB. Free memory was 18.6 MB in the beginning and 28.5 MB in the end (delta: -9.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:06,131 INFO L168 Benchmark]: RCFGBuilder took 566.41 ms. Allocated memory is still 44.0 MB. Free memory was 28.5 MB in the beginning and 27.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:06,132 INFO L168 Benchmark]: TraceAbstraction took 620.43 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 26.9 MB in the beginning and 27.6 MB in the end (delta: -701.3 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:06,133 INFO L168 Benchmark]: Witness Printer took 38.93 ms. Allocated memory is still 54.5 MB. Free memory was 27.4 MB in the beginning and 25.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:06,138 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 35.7 MB. Free memory was 22.3 MB in the beginning and 22.2 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 591.61 ms. Allocated memory is still 44.0 MB. Free memory was 29.0 MB in the beginning and 20.2 MB in the end (delta: 8.8 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.99 ms. Allocated memory is still 44.0 MB. Free memory was 20.2 MB in the beginning and 18.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.83 ms. Allocated memory is still 44.0 MB. Free memory was 18.6 MB in the beginning and 28.5 MB in the end (delta: -9.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 566.41 ms. Allocated memory is still 44.0 MB. Free memory was 28.5 MB in the beginning and 27.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 620.43 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 26.9 MB in the beginning and 27.6 MB in the end (delta: -701.3 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Witness Printer took 38.93 ms. Allocated memory is still 54.5 MB. Free memory was 27.4 MB in the beginning and 25.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 333]: integer overflow possible integer overflow possible We found a FailurePath: [L332] int minInt = -2147483647 - 1; [L333] minInt + -1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 SDtfs, 2 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! Received shutdown request...