./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/joey.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_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/joey.c -s /tmp/vcloud-vcloud-master/worker/run_dir_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/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 6360f720317c1229a4bb277806239106bfb4e5c0 ............................................................................................................................................................................................................................ 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 19:19:56,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:19:56,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:19:56,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:19:56,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:19:56,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:19:56,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:19:56,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:19:56,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:19:56,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:19:56,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:19:56,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:19:56,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:19:56,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:19:56,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:19:56,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:19:56,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:19:56,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:19:56,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:19:56,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:19:56,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:19:56,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:19:56,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:19:56,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:19:56,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:19:56,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:19:56,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:19:56,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:19:56,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:19:56,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:19:56,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:19:56,889 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:19:56,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:19:56,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:19:56,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:19:56,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:19:56,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:19:56,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:19:56,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:19:56,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:19:56,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:19:56,898 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-29 19:19:56,922 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:19:56,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:19:56,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 19:19:56,924 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 19:19:56,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:19:56,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:19:56,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:19:56,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:19:56,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:19:56,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:19:56,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:19:56,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:19:56,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:19:56,926 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 19:19:56,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:19:56,927 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:19:56,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:19:56,927 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 19:19:56,927 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 19:19:56,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:19:56,928 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:19:56,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 19:19:56,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:19:56,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:19:56,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:19:56,929 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 19:19:56,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:19:56,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:19:56,929 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_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6360f720317c1229a4bb277806239106bfb4e5c0 [2020-11-29 19:19:57,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:19:57,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:19:57,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:19:57,217 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:19:57,218 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:19:57,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/joey.c [2020-11-29 19:19:57,295 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/bin/ukojak/data/4c145d56e/62e418d1ff664072bc426454fb9806c2/FLAG94db30f21 [2020-11-29 19:19:57,857 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:19:57,859 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/sv-benchmarks/c/termination-crafted-lit/joey.c [2020-11-29 19:19:57,870 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/bin/ukojak/data/4c145d56e/62e418d1ff664072bc426454fb9806c2/FLAG94db30f21 [2020-11-29 19:19:58,215 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/bin/ukojak/data/4c145d56e/62e418d1ff664072bc426454fb9806c2 [2020-11-29 19:19:58,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:19:58,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:19:58,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:19:58,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:19:58,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:19:58,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:19:58" (1/1) ... [2020-11-29 19:19:58,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f48d3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:19:58, skipping insertion in model container [2020-11-29 19:19:58,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:19:58" (1/1) ... [2020-11-29 19:19:58,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:19:58,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:19:58,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:19:58,411 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:19:58,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:19:58,466 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:19:58,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:19:58 WrapperNode [2020-11-29 19:19:58,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:19:58,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:19:58,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:19:58,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:19:58,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:19:58" (1/1) ... [2020-11-29 19:19:58,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:19:58" (1/1) ... [2020-11-29 19:19:58,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:19:58,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:19:58,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:19:58,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:19:58,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:19:58" (1/1) ... [2020-11-29 19:19:58,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:19:58" (1/1) ... [2020-11-29 19:19:58,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:19:58" (1/1) ... [2020-11-29 19:19:58,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:19:58" (1/1) ... [2020-11-29 19:19:58,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:19:58" (1/1) ... [2020-11-29 19:19:58,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:19:58" (1/1) ... [2020-11-29 19:19:58,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:19:58" (1/1) ... [2020-11-29 19:19:58,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:19:58,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:19:58,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:19:58,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:19:58,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:19:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/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 [2020-11-29 19:19:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2020-11-29 19:19:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2020-11-29 19:19:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:19:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:19:58,901 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:19:58,902 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-29 19:19:58,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:19:58 BoogieIcfgContainer [2020-11-29 19:19:58,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:19:58,905 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 19:19:58,905 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 19:19:58,929 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 19:19:58,929 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:19:58" (1/1) ... [2020-11-29 19:19:58,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:19:58,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:19:58,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 31 states and 35 transitions. [2020-11-29 19:19:58,996 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-11-29 19:19:59,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:19:59,000 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:19:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:19:59,279 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 19:19:59,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:19:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 35 states and 44 transitions. [2020-11-29 19:19:59,575 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2020-11-29 19:19:59,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:19:59,576 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:19:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:19:59,597 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:19:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:19:59,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:19:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:19:59,648 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:19:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:19:59,657 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:19:59,663 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-11-29 19:19:59,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 07:19:59 ImpRootNode [2020-11-29 19:19:59,693 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 19:19:59,694 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:19:59,694 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:19:59,695 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:19:59,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:19:58" (3/4) ... [2020-11-29 19:19:59,700 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 19:19:59,753 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_aac533c0-b068-44a9-96d4-0b4dbc4dc2c9/bin/ukojak/witness.graphml [2020-11-29 19:19:59,755 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:19:59,759 INFO L168 Benchmark]: Toolchain (without parser) took 1536.66 ms. Allocated memory was 115.3 MB in the beginning and 146.8 MB in the end (delta: 31.5 MB). Free memory was 89.4 MB in the beginning and 76.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 42.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:19:59,765 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 115.3 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:19:59,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.07 ms. Allocated memory was 115.3 MB in the beginning and 146.8 MB in the end (delta: 31.5 MB). Free memory was 89.1 MB in the beginning and 124.3 MB in the end (delta: -35.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:19:59,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.70 ms. Allocated memory is still 146.8 MB. Free memory was 124.2 MB in the beginning and 122.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:19:59,771 INFO L168 Benchmark]: Boogie Preprocessor took 21.09 ms. Allocated memory is still 146.8 MB. Free memory was 122.6 MB in the beginning and 122.1 MB in the end (delta: 490.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:19:59,772 INFO L168 Benchmark]: RCFGBuilder took 383.56 ms. Allocated memory is still 146.8 MB. Free memory was 122.1 MB in the beginning and 109.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:19:59,773 INFO L168 Benchmark]: CodeCheck took 787.69 ms. Allocated memory is still 146.8 MB. Free memory was 109.5 MB in the beginning and 77.5 MB in the end (delta: 32.0 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:19:59,775 INFO L168 Benchmark]: Witness Printer took 61.08 ms. Allocated memory is still 146.8 MB. Free memory was 77.0 MB in the beginning and 76.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:19:59,779 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 2 procedures, 31 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 15]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y; [L22] CALL rec(x) VAL [\old(x)=2147483647] [L10] COND FALSE !(x <= 0) VAL [\old(x)=2147483647, x=2147483647] [L12] COND FALSE !(x%2 == 0) VAL [\old(x)=2147483647, x=2147483647] [L15] ++x VAL [\old(x)=2147483647, x=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 115.3 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 247.07 ms. Allocated memory was 115.3 MB in the beginning and 146.8 MB in the end (delta: 31.5 MB). Free memory was 89.1 MB in the beginning and 124.3 MB in the end (delta: -35.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.70 ms. Allocated memory is still 146.8 MB. Free memory was 124.2 MB in the beginning and 122.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.09 ms. Allocated memory is still 146.8 MB. Free memory was 122.6 MB in the beginning and 122.1 MB in the end (delta: 490.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 383.56 ms. Allocated memory is still 146.8 MB. Free memory was 122.1 MB in the beginning and 109.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 787.69 ms. Allocated memory is still 146.8 MB. Free memory was 109.5 MB in the beginning and 77.5 MB in the end (delta: 32.0 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Witness Printer took 61.08 ms. Allocated memory is still 146.8 MB. Free memory was 77.0 MB in the beginning and 76.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...