./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN --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 7fe3843d41a84d22889162aaa1c2b6d18f44faeeac702eea9c45f49a2c72d4bd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 05:08:06,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 05:08:06,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 05:08:06,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 05:08:06,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 05:08:06,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 05:08:06,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 05:08:06,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 05:08:06,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 05:08:06,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 05:08:06,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 05:08:06,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 05:08:06,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 05:08:06,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 05:08:06,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 05:08:06,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 05:08:06,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 05:08:06,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 05:08:06,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 05:08:06,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 05:08:06,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 05:08:06,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 05:08:06,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 05:08:06,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 05:08:06,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 05:08:06,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 05:08:06,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 05:08:06,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 05:08:06,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 05:08:06,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 05:08:06,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 05:08:06,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 05:08:06,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 05:08:06,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 05:08:06,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 05:08:06,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 05:08:06,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 05:08:06,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 05:08:06,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 05:08:06,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 05:08:06,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 05:08:06,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-21 05:08:06,769 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 05:08:06,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 05:08:06,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 05:08:06,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-21 05:08:06,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 05:08:06,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 05:08:06,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 05:08:06,773 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 05:08:06,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 05:08:06,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 05:08:06,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 05:08:06,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 05:08:06,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 05:08:06,782 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 05:08:06,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 05:08:06,782 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 05:08:06,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 05:08:06,783 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 05:08:06,783 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 05:08:06,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 05:08:06,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 05:08:06,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 05:08:06,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 05:08:06,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 05:08:06,785 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 05:08:06,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 05:08:06,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 05:08:06,786 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_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fe3843d41a84d22889162aaa1c2b6d18f44faeeac702eea9c45f49a2c72d4bd [2021-11-21 05:08:07,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 05:08:07,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 05:08:07,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 05:08:07,074 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 05:08:07,075 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 05:08:07,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c [2021-11-21 05:08:07,143 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/data/53e9d2e39/dfef577ce36047919f2fd27f5bc454a8/FLAGc82fcbdfc [2021-11-21 05:08:07,617 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 05:08:07,618 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c [2021-11-21 05:08:07,630 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/data/53e9d2e39/dfef577ce36047919f2fd27f5bc454a8/FLAGc82fcbdfc [2021-11-21 05:08:07,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/data/53e9d2e39/dfef577ce36047919f2fd27f5bc454a8 [2021-11-21 05:08:07,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 05:08:08,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 05:08:08,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 05:08:08,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 05:08:08,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 05:08:08,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:08:07" (1/1) ... [2021-11-21 05:08:08,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a45406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:08, skipping insertion in model container [2021-11-21 05:08:08,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:08:07" (1/1) ... [2021-11-21 05:08:08,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 05:08:08,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 05:08:08,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 05:08:08,258 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 05:08:08,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 05:08:08,284 INFO L208 MainTranslator]: Completed translation [2021-11-21 05:08:08,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:08 WrapperNode [2021-11-21 05:08:08,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 05:08:08,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 05:08:08,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 05:08:08,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 05:08:08,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:08" (1/1) ... [2021-11-21 05:08:08,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:08" (1/1) ... [2021-11-21 05:08:08,317 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2021-11-21 05:08:08,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 05:08:08,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 05:08:08,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 05:08:08,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 05:08:08,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:08" (1/1) ... [2021-11-21 05:08:08,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:08" (1/1) ... [2021-11-21 05:08:08,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:08" (1/1) ... [2021-11-21 05:08:08,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:08" (1/1) ... [2021-11-21 05:08:08,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:08" (1/1) ... [2021-11-21 05:08:08,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:08" (1/1) ... [2021-11-21 05:08:08,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:08" (1/1) ... [2021-11-21 05:08:08,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 05:08:08,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 05:08:08,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 05:08:08,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 05:08:08,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:08" (1/1) ... [2021-11-21 05:08:08,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 05:08:08,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 05:08:08,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 05:08:08,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 05:08:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 05:08:08,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 05:08:08,488 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 05:08:08,490 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 05:08:08,610 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 05:08:08,641 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 05:08:08,642 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 05:08:08,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:08:08 BoogieIcfgContainer [2021-11-21 05:08:08,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 05:08:08,645 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 05:08:08,645 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 05:08:08,656 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 05:08:08,656 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:08:08" (1/1) ... [2021-11-21 05:08:08,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 05:08:08,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:08:08,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2021-11-21 05:08:08,747 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2021-11-21 05:08:08,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 05:08:08,749 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:08:08,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:08:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:08:08,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:08:08,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:08:08,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2021-11-21 05:08:08,972 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-21 05:08:08,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 05:08:08,973 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:08:08,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:08:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:08:08,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:08:09,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:08:09,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 27 transitions. [2021-11-21 05:08:09,074 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2021-11-21 05:08:09,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 05:08:09,076 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:08:09,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:08:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:08:09,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:08:09,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:08:09,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 31 transitions. [2021-11-21 05:08:09,282 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 31 transitions. [2021-11-21 05:08:09,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 05:08:09,282 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:08:09,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:08:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:08:09,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:08:09,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:08:09,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2021-11-21 05:08:09,488 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2021-11-21 05:08:09,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 05:08:09,488 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:08:09,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:08:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:08:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:08:09,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:08:09,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2021-11-21 05:08:09,570 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2021-11-21 05:08:09,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 05:08:09,571 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:08:09,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:08:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:08:09,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 05:08:09,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:08:09,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2021-11-21 05:08:09,645 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2021-11-21 05:08:09,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 05:08:09,645 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:08:09,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:08:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:08:09,684 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:08:09,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:08:09,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2021-11-21 05:08:09,714 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-21 05:08:09,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 05:08:09,715 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-11-21 05:08:09,723 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2021-11-21 05:08:09,752 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2021-11-21 05:08:09,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 05:08:09 ImpRootNode [2021-11-21 05:08:09,762 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-21 05:08:09,763 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 05:08:09,763 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 05:08:09,763 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 05:08:09,764 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:08:08" (3/4) ... [2021-11-21 05:08:09,766 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 05:08:09,775 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-21 05:08:09,775 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-21 05:08:09,775 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-21 05:08:09,818 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/witness.graphml [2021-11-21 05:08:09,818 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 05:08:09,819 INFO L158 Benchmark]: Toolchain (without parser) took 1818.77ms. Allocated memory is still 130.0MB. Free memory was 89.3MB in the beginning and 105.1MB in the end (delta: -15.8MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2021-11-21 05:08:09,820 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 130.0MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 05:08:09,820 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.99ms. Allocated memory is still 130.0MB. Free memory was 89.1MB in the beginning and 105.0MB in the end (delta: -15.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 05:08:09,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.12ms. Allocated memory is still 130.0MB. Free memory was 105.0MB in the beginning and 103.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 05:08:09,821 INFO L158 Benchmark]: Boogie Preprocessor took 21.52ms. Allocated memory is still 130.0MB. Free memory was 103.4MB in the beginning and 102.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 05:08:09,822 INFO L158 Benchmark]: RCFGBuilder took 302.89ms. Allocated memory is still 130.0MB. Free memory was 102.3MB in the beginning and 93.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 05:08:09,822 INFO L158 Benchmark]: CodeCheck took 1117.09ms. Allocated memory is still 130.0MB. Free memory was 93.1MB in the beginning and 52.5MB in the end (delta: 40.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2021-11-21 05:08:09,823 INFO L158 Benchmark]: Witness Printer took 55.64ms. Allocated memory is still 130.0MB. Free memory was 52.5MB in the beginning and 105.1MB in the end (delta: -52.6MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2021-11-21 05:08:09,825 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 8, 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, 127 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 176 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 136 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 313 IncrementalHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 40 mSDtfsCounter, 313 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 403 GetRequests, 356 SyntacticMatches, 17 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 101 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 8/8 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 - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 130.0MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.99ms. Allocated memory is still 130.0MB. Free memory was 89.1MB in the beginning and 105.0MB in the end (delta: -15.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.12ms. Allocated memory is still 130.0MB. Free memory was 105.0MB in the beginning and 103.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.52ms. Allocated memory is still 130.0MB. Free memory was 103.4MB in the beginning and 102.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 302.89ms. Allocated memory is still 130.0MB. Free memory was 102.3MB in the beginning and 93.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1117.09ms. Allocated memory is still 130.0MB. Free memory was 93.1MB in the beginning and 52.5MB in the end (delta: 40.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 55.64ms. Allocated memory is still 130.0MB. Free memory was 52.5MB in the beginning and 105.1MB in the end (delta: -52.6MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-21 05:08:09,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fbc903-8b5d-4107-9cae-d48e3e493944/bin/ukojak-vF6T2TMglN/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 Result: TRUE