./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-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_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/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_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/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_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/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 d6984ce947edd44f0505e125be96f5769f9348f9c3acb95fd5f2e7ef0f2e794d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 23:41:59,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 23:41:59,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 23:41:59,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 23:41:59,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 23:41:59,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 23:41:59,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 23:41:59,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 23:41:59,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 23:41:59,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 23:41:59,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 23:41:59,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 23:41:59,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 23:41:59,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 23:41:59,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 23:41:59,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 23:41:59,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 23:41:59,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 23:41:59,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 23:41:59,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 23:41:59,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 23:41:59,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 23:41:59,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 23:41:59,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 23:41:59,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 23:41:59,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 23:41:59,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 23:41:59,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 23:41:59,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 23:41:59,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 23:41:59,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 23:41:59,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 23:41:59,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 23:41:59,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 23:41:59,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 23:41:59,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 23:41:59,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 23:41:59,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 23:41:59,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 23:41:59,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 23:41:59,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 23:41:59,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-13 23:41:59,822 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 23:41:59,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 23:41:59,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 23:41:59,823 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 23:41:59,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 23:41:59,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 23:41:59,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 23:41:59,825 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 23:41:59,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 23:41:59,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 23:41:59,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 23:41:59,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 23:41:59,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 23:41:59,826 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 23:41:59,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 23:41:59,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 23:41:59,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 23:41:59,827 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 23:41:59,827 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 23:41:59,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 23:41:59,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:41:59,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 23:41:59,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 23:41:59,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 23:41:59,829 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 23:41:59,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 23:41:59,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 23:41:59,829 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_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6984ce947edd44f0505e125be96f5769f9348f9c3acb95fd5f2e7ef0f2e794d [2021-11-13 23:42:00,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 23:42:00,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 23:42:00,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 23:42:00,176 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 23:42:00,177 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 23:42:00,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c [2021-11-13 23:42:00,258 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/bin/ukojak-2xVlg8857e/data/e04095bfc/756c4f6ec26541349699c9b383e4c87f/FLAG7ba68324a [2021-11-13 23:42:00,898 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 23:42:00,898 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c [2021-11-13 23:42:00,910 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/bin/ukojak-2xVlg8857e/data/e04095bfc/756c4f6ec26541349699c9b383e4c87f/FLAG7ba68324a [2021-11-13 23:42:01,259 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/bin/ukojak-2xVlg8857e/data/e04095bfc/756c4f6ec26541349699c9b383e4c87f [2021-11-13 23:42:01,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 23:42:01,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 23:42:01,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 23:42:01,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 23:42:01,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 23:42:01,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:42:01" (1/1) ... [2021-11-13 23:42:01,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d4200b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:01, skipping insertion in model container [2021-11-13 23:42:01,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:42:01" (1/1) ... [2021-11-13 23:42:01,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 23:42:01,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 23:42:01,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:42:01,532 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 23:42:01,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:42:01,561 INFO L208 MainTranslator]: Completed translation [2021-11-13 23:42:01,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:01 WrapperNode [2021-11-13 23:42:01,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 23:42:01,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 23:42:01,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 23:42:01,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 23:42:01,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:01" (1/1) ... [2021-11-13 23:42:01,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:01" (1/1) ... [2021-11-13 23:42:01,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 23:42:01,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 23:42:01,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 23:42:01,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 23:42:01,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:01" (1/1) ... [2021-11-13 23:42:01,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:01" (1/1) ... [2021-11-13 23:42:01,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:01" (1/1) ... [2021-11-13 23:42:01,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:01" (1/1) ... [2021-11-13 23:42:01,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:01" (1/1) ... [2021-11-13 23:42:01,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:01" (1/1) ... [2021-11-13 23:42:01,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:01" (1/1) ... [2021-11-13 23:42:01,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 23:42:01,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 23:42:01,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 23:42:01,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 23:42:01,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:01" (1/1) ... [2021-11-13 23:42:01,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:42:01,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/bin/ukojak-2xVlg8857e/z3 [2021-11-13 23:42:01,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 23:42:01,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 23:42:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 23:42:01,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 23:42:02,004 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 23:42:02,006 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 23:42:02,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:42:02 BoogieIcfgContainer [2021-11-13 23:42:02,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 23:42:02,010 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 23:42:02,011 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 23:42:02,025 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 23:42:02,025 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:42:02" (1/1) ... [2021-11-13 23:42:02,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:42:02,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:42:02,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2021-11-13 23:42:02,141 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-11-13 23:42:02,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 23:42:02,144 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:42:02,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:42:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:42:02,365 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 23:42:02,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:42:02,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2021-11-13 23:42:02,443 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-11-13 23:42:02,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 23:42:02,444 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:42:02,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:42:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:42:02,489 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 23:42:02,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:42:02,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-13 23:42:02,824 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-13 23:42:02,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 23:42:02,825 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:42:02,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:42:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:42:02,889 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 23:42:03,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:42:03,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2021-11-13 23:42:03,090 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2021-11-13 23:42:03,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 23:42:03,090 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:42:03,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:42:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:42:03,130 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 23:42:03,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:42:03,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2021-11-13 23:42:03,334 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2021-11-13 23:42:03,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 23:42:03,335 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:42:03,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:42:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:42:03,365 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 23:42:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:42:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:42:03,425 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 23:42:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:42:03,441 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2021-11-13 23:42:03,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:42:03 ImpRootNode [2021-11-13 23:42:03,482 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 23:42:03,483 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 23:42:03,483 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 23:42:03,483 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 23:42:03,484 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:42:02" (3/4) ... [2021-11-13 23:42:03,486 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-13 23:42:03,522 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 23:42:03,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 23:42:03,524 INFO L158 Benchmark]: Toolchain (without parser) took 2251.37ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 67.3MB in the beginning and 106.4MB in the end (delta: -39.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:42:03,525 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 109.1MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:42:03,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.99ms. Allocated memory is still 109.1MB. Free memory was 67.1MB in the beginning and 84.3MB in the end (delta: -17.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 23:42:03,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.11ms. Allocated memory is still 109.1MB. Free memory was 84.3MB in the beginning and 83.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:42:03,527 INFO L158 Benchmark]: Boogie Preprocessor took 24.43ms. Allocated memory is still 109.1MB. Free memory was 83.0MB in the beginning and 82.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 23:42:03,528 INFO L158 Benchmark]: RCFGBuilder took 379.26ms. Allocated memory is still 109.1MB. Free memory was 82.0MB in the beginning and 72.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 23:42:03,529 INFO L158 Benchmark]: CodeCheck took 1472.26ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 72.6MB in the beginning and 108.4MB in the end (delta: -35.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:42:03,530 INFO L158 Benchmark]: Witness Printer took 40.02ms. Allocated memory is still 132.1MB. Free memory was 107.5MB in the beginning and 106.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 23:42:03,533 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: 1.4s, 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, 408.57ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 355.46ms 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, 8.00ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.7s 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: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L18] int x, y, oldx, oldy; [L19] x = __VERIFIER_nondet_int() [L20] y = __VERIFIER_nondet_int() [L21] COND TRUE x > 0 && y > 0 [L22] oldx = x [L23] oldy = y [L24] COND FALSE !(__VERIFIER_nondet_int() != 0) [L28] EXPR oldy - 2 [L28] x = oldy - 2 VAL [x=-1, x=2147483647, y=1, y=1] [L29] oldx + 1 VAL [x=2147483647, x=-1, y=1, y=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 109.1MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.99ms. Allocated memory is still 109.1MB. Free memory was 67.1MB in the beginning and 84.3MB in the end (delta: -17.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.11ms. Allocated memory is still 109.1MB. Free memory was 84.3MB in the beginning and 83.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.43ms. Allocated memory is still 109.1MB. Free memory was 83.0MB in the beginning and 82.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 379.26ms. Allocated memory is still 109.1MB. Free memory was 82.0MB in the beginning and 72.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1472.26ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 72.6MB in the beginning and 108.4MB in the end (delta: -35.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 40.02ms. Allocated memory is still 132.1MB. Free memory was 107.5MB in the beginning and 106.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-13 23:42:03,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee4c20a-6c82-4e0b-b92a-9595770e9fe4/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)