./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c --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_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f299f7e43971e739d4799ece224b61839f7f06e4 ............................................................................................................................................................................................................... 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 [2020-11-28 04:44:32,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:44:32,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:44:32,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:44:32,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:44:32,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:44:32,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:44:32,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:44:32,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:44:32,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:44:32,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:44:32,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:44:32,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:44:32,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:44:32,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:44:33,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:44:33,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:44:33,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:44:33,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:44:33,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:44:33,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:44:33,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:44:33,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:44:33,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:44:33,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:44:33,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:44:33,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:44:33,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:44:33,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:44:33,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:44:33,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:44:33,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:44:33,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:44:33,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:44:33,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:44:33,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:44:33,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:44:33,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:44:33,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:44:33,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:44:33,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:44:33,046 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:44:33,070 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:44:33,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:44:33,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:44:33,071 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:44:33,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:44:33,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:44:33,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:44:33,073 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:44:33,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:44:33,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:44:33,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:44:33,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:44:33,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:44:33,074 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:44:33,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:44:33,074 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:44:33,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:44:33,075 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:44:33,075 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:44:33,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:44:33,075 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:44:33,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:44:33,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:44:33,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:44:33,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:44:33,076 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:44:33,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:44:33,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:44:33,077 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_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f299f7e43971e739d4799ece224b61839f7f06e4 [2020-11-28 04:44:33,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:44:33,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:44:33,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:44:33,366 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:44:33,367 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:44:33,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c [2020-11-28 04:44:33,459 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak/data/479068bf2/b9217632ae5d40718b9b1b45c39abb91/FLAG289ec8b36 [2020-11-28 04:44:33,873 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:44:33,873 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7848fd2a-7540-4ccf-bef0-4703e35253de/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c [2020-11-28 04:44:33,879 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak/data/479068bf2/b9217632ae5d40718b9b1b45c39abb91/FLAG289ec8b36 [2020-11-28 04:44:34,234 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak/data/479068bf2/b9217632ae5d40718b9b1b45c39abb91 [2020-11-28 04:44:34,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:44:34,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:44:34,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:34,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:44:34,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:44:34,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ed4cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34, skipping insertion in model container [2020-11-28 04:44:34,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:44:34,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:44:34,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:34,469 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:44:34,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:34,513 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:44:34,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34 WrapperNode [2020-11-28 04:44:34,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:34,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:34,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:44:34,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:44:34,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:34,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:44:34,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:44:34,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:44:34,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:44:34,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:44:34,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:44:34,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:44:34,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2020-11-28 04:44:34,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:44:34,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:44:34,856 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:44:34,856 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:44:34,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:34 BoogieIcfgContainer [2020-11-28 04:44:34,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:44:34,860 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:44:34,860 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:44:34,871 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:44:34,871 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:44:34,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:34,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-11-28 04:44:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-11-28 04:44:34,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:44:34,925 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:35,039 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:35,051 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:35,089 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:35,114 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:35,121 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-11-28 04:44:35,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:44:35 ImpRootNode [2020-11-28 04:44:35,139 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:44:35,143 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:44:35,144 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:44:35,144 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:44:35,145 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:34" (3/4) ... [2020-11-28 04:44:35,146 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:44:35,189 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7848fd2a-7540-4ccf-bef0-4703e35253de/bin/ukojak/witness.graphml [2020-11-28 04:44:35,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:44:35,193 INFO L168 Benchmark]: Toolchain (without parser) took 953.09 ms. Allocated memory is still 119.5 MB. Free memory was 93.9 MB in the beginning and 71.7 MB in the end (delta: 22.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:35,194 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 48.2 MB in the beginning and 48.1 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:35,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.25 ms. Allocated memory is still 119.5 MB. Free memory was 93.5 MB in the beginning and 94.6 MB in the end (delta: -1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:35,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.75 ms. Allocated memory is still 119.5 MB. Free memory was 94.6 MB in the beginning and 93.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:35,201 INFO L168 Benchmark]: Boogie Preprocessor took 25.04 ms. Allocated memory is still 119.5 MB. Free memory was 93.4 MB in the beginning and 92.6 MB in the end (delta: 777.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:35,201 INFO L168 Benchmark]: RCFGBuilder took 277.94 ms. Allocated memory is still 119.5 MB. Free memory was 92.5 MB in the beginning and 82.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:35,202 INFO L168 Benchmark]: CodeCheck took 280.14 ms. Allocated memory is still 119.5 MB. Free memory was 82.1 MB in the beginning and 73.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:35,203 INFO L168 Benchmark]: Witness Printer took 45.78 ms. Allocated memory is still 119.5 MB. Free memory was 73.2 MB in the beginning and 71.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:35,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y, oldx; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x < 5 [L27] oldx = x [L28] oldx - y * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 48.2 MB in the beginning and 48.1 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 276.25 ms. Allocated memory is still 119.5 MB. Free memory was 93.5 MB in the beginning and 94.6 MB in the end (delta: -1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.75 ms. Allocated memory is still 119.5 MB. Free memory was 94.6 MB in the beginning and 93.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.04 ms. Allocated memory is still 119.5 MB. Free memory was 93.4 MB in the beginning and 92.6 MB in the end (delta: 777.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 277.94 ms. Allocated memory is still 119.5 MB. Free memory was 92.5 MB in the beginning and 82.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 280.14 ms. Allocated memory is still 119.5 MB. Free memory was 82.1 MB in the beginning and 73.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 45.78 ms. Allocated memory is still 119.5 MB. Free memory was 73.2 MB in the beginning and 71.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...