./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMin.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer --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-a4ecdab [2020-11-29 20:15:59,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:15:59,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:15:59,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:15:59,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:15:59,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:15:59,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:15:59,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:15:59,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:15:59,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:15:59,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:15:59,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:15:59,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:15:59,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:15:59,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:15:59,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:15:59,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:15:59,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:15:59,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:15:59,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:15:59,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:15:59,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:15:59,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:15:59,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:15:59,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:15:59,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:15:59,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:15:59,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:15:59,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:15:59,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:15:59,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:15:59,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:15:59,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:15:59,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:15:59,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:15:59,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:15:59,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:15:59,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:15:59,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:15:59,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:15:59,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:15:59,641 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-29 20:15:59,694 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:15:59,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:15:59,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:15:59,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:15:59,698 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:15:59,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:15:59,698 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:15:59,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:15:59,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:15:59,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:15:59,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:15:59,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:15:59,701 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 20:15:59,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:15:59,701 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:15:59,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:15:59,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:15:59,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:15:59,702 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:15:59,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:15:59,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:15:59,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:15:59,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:15:59,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:15:59,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:15:59,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:15:59,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:15:59,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:15:59,705 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:/tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8586441a08b46391c3ae26469a94ac820a4b60b0 [2020-11-29 20:16:00,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:16:00,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:16:00,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:16:00,130 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:16:00,131 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:16:00,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer/../../sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMin.i [2020-11-29 20:16:00,246 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer/data/b3087425a/e7a1c0c3eb464d4ab5244e41b1fd8217/FLAG360b634f8 [2020-11-29 20:16:00,976 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:16:00,977 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMin.i [2020-11-29 20:16:00,995 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer/data/b3087425a/e7a1c0c3eb464d4ab5244e41b1fd8217/FLAG360b634f8 [2020-11-29 20:16:01,255 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer/data/b3087425a/e7a1c0c3eb464d4ab5244e41b1fd8217 [2020-11-29 20:16:01,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:16:01,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:16:01,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:16:01,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:16:01,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:16:01,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:16:01" (1/1) ... [2020-11-29 20:16:01,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@592f9ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:01, skipping insertion in model container [2020-11-29 20:16:01,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:16:01" (1/1) ... [2020-11-29 20:16:01,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:16:01,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:16:01,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:16:01,740 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:16:01,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:16:01,865 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:16:01,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:01 WrapperNode [2020-11-29 20:16:01,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:16:01,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:16:01,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:16:01,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:16:01,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:01" (1/1) ... [2020-11-29 20:16:01,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:01" (1/1) ... [2020-11-29 20:16:01,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:16:01,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:16:01,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:16:01,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:16:01,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:01" (1/1) ... [2020-11-29 20:16:01,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:01" (1/1) ... [2020-11-29 20:16:01,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:01" (1/1) ... [2020-11-29 20:16:01,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:01" (1/1) ... [2020-11-29 20:16:01,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:01" (1/1) ... [2020-11-29 20:16:01,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:01" (1/1) ... [2020-11-29 20:16:01,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:01" (1/1) ... [2020-11-29 20:16:01,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:16:01,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:16:01,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:16:01,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:16:01,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer/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 [2020-11-29 20:16:02,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:16:02,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:16:02,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:16:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:16:02,394 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:16:02,395 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-29 20:16:02,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:02 BoogieIcfgContainer [2020-11-29 20:16:02,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:16:02,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:16:02,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:16:02,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:16:02,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:16:01" (1/3) ... [2020-11-29 20:16:02,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d975f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:16:02, skipping insertion in model container [2020-11-29 20:16:02,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:01" (2/3) ... [2020-11-29 20:16:02,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d975f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:16:02, skipping insertion in model container [2020-11-29 20:16:02,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:02" (3/3) ... [2020-11-29 20:16:02,405 INFO L111 eAbstractionObserver]: Analyzing ICFG AdditionIntMin.i [2020-11-29 20:16:02,417 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:16:02,421 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-29 20:16:02,433 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-29 20:16:02,461 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:16:02,461 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:16:02,462 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:16:02,462 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:16:02,462 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:16:02,462 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:16:02,462 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:16:02,462 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:16:02,475 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-11-29 20:16:02,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-29 20:16:02,480 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:16:02,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-29 20:16:02,481 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 20:16:02,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:16:02,487 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2020-11-29 20:16:02,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:16:02,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390728932] [2020-11-29 20:16:02,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:16:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:16:02,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:16:02,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390728932] [2020-11-29 20:16:02,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:16:02,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:16:02,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258281746] [2020-11-29 20:16:02,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:16:02,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:16:02,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:16:02,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:16:02,716 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2020-11-29 20:16:02,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:16:02,744 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-11-29 20:16:02,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:16:02,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-29 20:16:02,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:16:02,758 INFO L225 Difference]: With dead ends: 13 [2020-11-29 20:16:02,759 INFO L226 Difference]: Without dead ends: 5 [2020-11-29 20:16:02,762 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 [2020-11-29 20:16:02,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2020-11-29 20:16:02,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-11-29 20:16:02,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 20:16:02,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions. [2020-11-29 20:16:02,804 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 3 [2020-11-29 20:16:02,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:16:02,804 INFO L481 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions. [2020-11-29 20:16:02,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:16:02,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2020-11-29 20:16:02,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 20:16:02,806 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:16:02,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 20:16:02,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:16:02,808 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 20:16:02,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:16:02,814 INFO L82 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2020-11-29 20:16:02,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:16:02,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208270961] [2020-11-29 20:16:02,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:16:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:16:02,847 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:16:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:16:02,870 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:16:02,889 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:16:02,889 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 20:16:02,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:16:02,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:16:02 BoogieIcfgContainer [2020-11-29 20:16:02,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:16:02,910 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:16:02,910 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:16:02,910 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:16:02,911 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:02" (3/4) ... [2020-11-29 20:16:02,913 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 20:16:02,957 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fd0fd3bf-65e9-46e3-a16e-87f37333febf/bin/uautomizer/witness.graphml [2020-11-29 20:16:02,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:16:02,960 INFO L168 Benchmark]: Toolchain (without parser) took 1698.46 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 54.4 MB in the beginning and 70.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:02,961 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory was 48.0 MB in the beginning and 47.9 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:16:02,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.71 ms. Allocated memory is still 86.0 MB. Free memory was 54.0 MB in the beginning and 55.4 MB in the end (delta: -1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:02,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.92 ms. Allocated memory is still 86.0 MB. Free memory was 55.4 MB in the beginning and 54.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:02,971 INFO L168 Benchmark]: Boogie Preprocessor took 23.06 ms. Allocated memory is still 86.0 MB. Free memory was 54.0 MB in the beginning and 52.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:16:02,972 INFO L168 Benchmark]: RCFGBuilder took 439.60 ms. Allocated memory is still 86.0 MB. Free memory was 52.9 MB in the beginning and 41.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:02,973 INFO L168 Benchmark]: TraceAbstraction took 510.78 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 41.5 MB in the beginning and 72.5 MB in the end (delta: -31.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:16:02,973 INFO L168 Benchmark]: Witness Printer took 47.57 ms. Allocated memory is still 104.9 MB. Free memory was 72.5 MB in the beginning and 70.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:02,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory was 48.0 MB in the beginning and 47.9 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 607.71 ms. Allocated memory is still 86.0 MB. Free memory was 54.0 MB in the beginning and 55.4 MB in the end (delta: -1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.92 ms. Allocated memory is still 86.0 MB. Free memory was 55.4 MB in the beginning and 54.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.06 ms. Allocated memory is still 86.0 MB. Free memory was 54.0 MB in the beginning and 52.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 439.60 ms. Allocated memory is still 86.0 MB. Free memory was 52.9 MB in the beginning and 41.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 510.78 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 41.5 MB in the beginning and 72.5 MB in the end (delta: -31.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 47.57 ms. Allocated memory is still 104.9 MB. Free memory was 72.5 MB in the beginning and 70.9 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...