./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e --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 ab66f9f89348f915f5a709aa03ac6e16c276dad15b53c460d26f0885e78d4ce7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 22:47:09,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 22:47:09,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 22:47:09,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 22:47:09,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 22:47:09,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 22:47:09,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 22:47:09,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 22:47:09,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 22:47:09,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 22:47:09,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 22:47:09,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 22:47:09,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 22:47:09,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 22:47:09,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 22:47:09,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 22:47:09,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 22:47:09,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 22:47:09,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 22:47:10,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 22:47:10,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 22:47:10,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 22:47:10,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 22:47:10,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 22:47:10,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 22:47:10,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 22:47:10,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 22:47:10,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 22:47:10,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 22:47:10,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 22:47:10,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 22:47:10,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 22:47:10,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 22:47:10,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 22:47:10,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 22:47:10,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 22:47:10,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 22:47:10,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 22:47:10,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 22:47:10,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 22:47:10,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 22:47:10,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-13 22:47:10,104 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 22:47:10,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 22:47:10,127 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 22:47:10,127 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 22:47:10,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 22:47:10,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 22:47:10,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 22:47:10,129 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 22:47:10,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 22:47:10,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 22:47:10,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 22:47:10,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 22:47:10,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 22:47:10,140 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 22:47:10,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 22:47:10,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 22:47:10,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 22:47:10,142 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 22:47:10,142 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 22:47:10,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 22:47:10,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:47:10,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 22:47:10,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 22:47:10,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 22:47:10,144 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 22:47:10,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 22:47:10,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 22:47:10,145 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_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab66f9f89348f915f5a709aa03ac6e16c276dad15b53c460d26f0885e78d4ce7 [2021-11-13 22:47:10,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 22:47:10,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 22:47:10,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 22:47:10,523 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 22:47:10,524 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 22:47:10,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c [2021-11-13 22:47:10,626 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/data/aa2c395e4/6dbe11eef88c4c91bb20ac826a39f657/FLAG3ea528697 [2021-11-13 22:47:11,243 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 22:47:11,245 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c [2021-11-13 22:47:11,259 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/data/aa2c395e4/6dbe11eef88c4c91bb20ac826a39f657/FLAG3ea528697 [2021-11-13 22:47:11,611 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/data/aa2c395e4/6dbe11eef88c4c91bb20ac826a39f657 [2021-11-13 22:47:11,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 22:47:11,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 22:47:11,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 22:47:11,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 22:47:11,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 22:47:11,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:47:11" (1/1) ... [2021-11-13 22:47:11,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61e2bc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:11, skipping insertion in model container [2021-11-13 22:47:11,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:47:11" (1/1) ... [2021-11-13 22:47:11,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 22:47:11,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 22:47:11,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:47:11,884 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 22:47:11,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:47:11,914 INFO L208 MainTranslator]: Completed translation [2021-11-13 22:47:11,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:11 WrapperNode [2021-11-13 22:47:11,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 22:47:11,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 22:47:11,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 22:47:11,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 22:47:11,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:11" (1/1) ... [2021-11-13 22:47:11,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:11" (1/1) ... [2021-11-13 22:47:11,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 22:47:11,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 22:47:11,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 22:47:11,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 22:47:11,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:11" (1/1) ... [2021-11-13 22:47:11,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:11" (1/1) ... [2021-11-13 22:47:11,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:11" (1/1) ... [2021-11-13 22:47:11,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:11" (1/1) ... [2021-11-13 22:47:11,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:11" (1/1) ... [2021-11-13 22:47:11,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:11" (1/1) ... [2021-11-13 22:47:11,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:11" (1/1) ... [2021-11-13 22:47:11,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 22:47:11,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 22:47:11,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 22:47:11,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 22:47:11,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:11" (1/1) ... [2021-11-13 22:47:11,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:47:12,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/z3 [2021-11-13 22:47:12,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 22:47:12,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 22:47:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 22:47:12,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 22:47:12,383 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 22:47:12,383 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 22:47:12,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:47:12 BoogieIcfgContainer [2021-11-13 22:47:12,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 22:47:12,388 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 22:47:12,388 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 22:47:12,402 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 22:47:12,403 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:47:12" (1/1) ... [2021-11-13 22:47:12,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 22:47:12,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:12,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2021-11-13 22:47:12,487 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-11-13 22:47:12,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 22:47:12,490 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:12,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:12,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:12,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:12,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2021-11-13 22:47:12,716 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-11-13 22:47:12,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 22:47:12,717 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:12,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:12,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:13,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-13 22:47:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-13 22:47:13,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 22:47:13,102 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:13,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:13,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:13,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:13,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2021-11-13 22:47:13,444 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2021-11-13 22:47:13,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 22:47:13,445 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:13,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:13,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:13,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:13,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2021-11-13 22:47:13,779 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2021-11-13 22:47:13,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 22:47:13,780 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:13,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 22:47:13,809 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 22:47:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 22:47:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 22:47:13,885 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 22:47:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 22:47:13,904 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2021-11-13 22:47:13,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:47:13 ImpRootNode [2021-11-13 22:47:13,950 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 22:47:13,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 22:47:13,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 22:47:13,951 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 22:47:13,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:47:12" (3/4) ... [2021-11-13 22:47:13,955 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-13 22:47:14,004 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 22:47:14,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 22:47:14,005 INFO L158 Benchmark]: Toolchain (without parser) took 2388.57ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 64.8MB in the beginning and 70.0MB in the end (delta: -5.2MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2021-11-13 22:47:14,006 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 86.0MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:47:14,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.79ms. Allocated memory is still 86.0MB. Free memory was 64.5MB in the beginning and 62.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 22:47:14,008 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.57ms. Allocated memory is still 86.0MB. Free memory was 62.5MB in the beginning and 61.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:47:14,008 INFO L158 Benchmark]: Boogie Preprocessor took 22.26ms. Allocated memory is still 86.0MB. Free memory was 61.0MB in the beginning and 60.3MB in the end (delta: 696.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:47:14,009 INFO L158 Benchmark]: RCFGBuilder took 407.92ms. Allocated memory is still 86.0MB. Free memory was 60.3MB in the beginning and 50.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 22:47:14,010 INFO L158 Benchmark]: CodeCheck took 1561.60ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 50.2MB in the beginning and 72.1MB in the end (delta: -21.8MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2021-11-13 22:47:14,011 INFO L158 Benchmark]: Witness Printer took 53.83ms. Allocated memory is still 113.2MB. Free memory was 72.1MB in the beginning and 70.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 22:47:14,016 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, 16 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 323.22ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 269.39ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 22 mSDtfsCounter, 123 mSolverCounterSat, 14.06ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] COND TRUE x > 0 && y > 0 [L15] int old_x = x; [L16] int old_y = y; [L17] COND FALSE !(__VERIFIER_nondet_int()) [L21] EXPR old_y - 2 [L21] x = old_y - 2 VAL [old_x=2147483647, old_y=1, x=-1, y=1] [L22] old_x + 1 VAL [old_x=2147483647, old_y=1, x=-1, y=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 86.0MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.79ms. Allocated memory is still 86.0MB. Free memory was 64.5MB in the beginning and 62.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.57ms. Allocated memory is still 86.0MB. Free memory was 62.5MB in the beginning and 61.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.26ms. Allocated memory is still 86.0MB. Free memory was 61.0MB in the beginning and 60.3MB in the end (delta: 696.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 407.92ms. Allocated memory is still 86.0MB. Free memory was 60.3MB in the beginning and 50.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1561.60ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 50.2MB in the beginning and 72.1MB in the end (delta: -21.8MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Witness Printer took 53.83ms. Allocated memory is still 113.2MB. Free memory was 72.1MB in the beginning and 70.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-13 22:47:14,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05cfeacb-7ce3-42b9-bf17-c992343a3f27/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)