./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.04.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_b672b58d-eadd-4368-8310-56887b1113f9/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/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_b672b58d-eadd-4368-8310-56887b1113f9/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/bin/ukojak-vF6T2TMglN/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/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_b672b58d-eadd-4368-8310-56887b1113f9/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 f214ec9c3463df033475d113d73a81f8b3f4c0aa0f373ac8a65b03e1f1c77c7f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 04:47:18,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 04:47:18,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 04:47:18,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 04:47:18,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 04:47:18,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 04:47:18,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 04:47:18,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 04:47:18,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 04:47:18,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 04:47:18,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 04:47:18,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 04:47:18,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 04:47:18,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 04:47:18,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 04:47:18,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 04:47:18,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 04:47:18,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 04:47:18,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 04:47:18,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 04:47:18,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 04:47:18,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 04:47:18,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 04:47:18,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 04:47:18,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 04:47:18,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 04:47:18,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 04:47:18,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 04:47:18,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 04:47:18,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 04:47:18,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 04:47:18,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 04:47:18,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 04:47:18,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 04:47:18,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 04:47:18,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 04:47:18,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 04:47:18,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 04:47:18,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 04:47:18,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 04:47:18,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 04:47:18,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/bin/ukojak-vF6T2TMglN/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-21 04:47:18,768 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 04:47:18,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 04:47:18,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 04:47:18,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-21 04:47:18,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 04:47:18,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 04:47:18,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 04:47:18,772 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 04:47:18,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 04:47:18,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 04:47:18,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 04:47:18,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 04:47:18,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 04:47:18,781 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 04:47:18,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 04:47:18,782 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 04:47:18,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 04:47:18,782 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 04:47:18,782 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 04:47:18,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 04:47:18,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 04:47:18,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 04:47:18,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 04:47:18,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 04:47:18,784 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 04:47:18,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 04:47:18,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 04:47:18,785 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_b672b58d-eadd-4368-8310-56887b1113f9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f214ec9c3463df033475d113d73a81f8b3f4c0aa0f373ac8a65b03e1f1c77c7f [2021-11-21 04:47:19,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 04:47:19,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 04:47:19,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 04:47:19,115 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 04:47:19,116 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 04:47:19,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.04.c [2021-11-21 04:47:19,197 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/bin/ukojak-vF6T2TMglN/data/38137ed9b/6784b272ee4f454084144196c706db49/FLAG70a91f193 [2021-11-21 04:47:19,676 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 04:47:19,677 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.04.c [2021-11-21 04:47:19,683 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/bin/ukojak-vF6T2TMglN/data/38137ed9b/6784b272ee4f454084144196c706db49/FLAG70a91f193 [2021-11-21 04:47:20,073 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/bin/ukojak-vF6T2TMglN/data/38137ed9b/6784b272ee4f454084144196c706db49 [2021-11-21 04:47:20,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 04:47:20,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 04:47:20,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 04:47:20,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 04:47:20,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 04:47:20,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:47:20" (1/1) ... [2021-11-21 04:47:20,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb50025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:20, skipping insertion in model container [2021-11-21 04:47:20,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:47:20" (1/1) ... [2021-11-21 04:47:20,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 04:47:20,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 04:47:20,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 04:47:20,310 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 04:47:20,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 04:47:20,334 INFO L208 MainTranslator]: Completed translation [2021-11-21 04:47:20,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:20 WrapperNode [2021-11-21 04:47:20,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 04:47:20,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 04:47:20,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 04:47:20,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 04:47:20,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:20" (1/1) ... [2021-11-21 04:47:20,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:20" (1/1) ... [2021-11-21 04:47:20,365 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2021-11-21 04:47:20,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 04:47:20,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 04:47:20,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 04:47:20,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 04:47:20,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:20" (1/1) ... [2021-11-21 04:47:20,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:20" (1/1) ... [2021-11-21 04:47:20,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:20" (1/1) ... [2021-11-21 04:47:20,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:20" (1/1) ... [2021-11-21 04:47:20,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:20" (1/1) ... [2021-11-21 04:47:20,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:20" (1/1) ... [2021-11-21 04:47:20,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:20" (1/1) ... [2021-11-21 04:47:20,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 04:47:20,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 04:47:20,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 04:47:20,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 04:47:20,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:20" (1/1) ... [2021-11-21 04:47:20,401 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 04:47:20,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 04:47:20,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 04:47:20,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 04:47:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 04:47:20,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 04:47:20,549 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 04:47:20,550 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 04:47:20,663 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 04:47:20,682 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 04:47:20,683 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 04:47:20,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:47:20 BoogieIcfgContainer [2021-11-21 04:47:20,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 04:47:20,688 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 04:47:20,688 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 04:47:20,698 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 04:47:20,698 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:47:20" (1/1) ... [2021-11-21 04:47:20,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 04:47:20,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:47:20,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2021-11-21 04:47:20,787 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-11-21 04:47:20,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 04:47:20,789 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:47:20,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:47:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 04:47:20,869 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 04:47:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 04:47:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 04:47:20,906 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 04:47:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 04:47:20,935 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-11-21 04:47:20,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 04:47:20 ImpRootNode [2021-11-21 04:47:20,960 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-21 04:47:20,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 04:47:20,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 04:47:20,962 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 04:47:20,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:47:20" (3/4) ... [2021-11-21 04:47:20,965 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-21 04:47:21,003 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/bin/ukojak-vF6T2TMglN/witness.graphml [2021-11-21 04:47:21,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 04:47:21,005 INFO L158 Benchmark]: Toolchain (without parser) took 927.01ms. Allocated memory is still 104.9MB. Free memory was 68.1MB in the beginning and 53.0MB in the end (delta: 15.1MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2021-11-21 04:47:21,006 INFO L158 Benchmark]: CDTParser took 1.23ms. Allocated memory is still 104.9MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 04:47:21,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.87ms. Allocated memory is still 104.9MB. Free memory was 67.9MB in the beginning and 74.8MB in the end (delta: -7.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-21 04:47:21,013 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.16ms. Allocated memory is still 104.9MB. Free memory was 74.8MB in the beginning and 73.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 04:47:21,014 INFO L158 Benchmark]: Boogie Preprocessor took 23.30ms. Allocated memory is still 104.9MB. Free memory was 73.6MB in the beginning and 72.7MB in the end (delta: 848.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 04:47:21,015 INFO L158 Benchmark]: RCFGBuilder took 294.22ms. Allocated memory is still 104.9MB. Free memory was 72.3MB in the beginning and 63.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 04:47:21,016 INFO L158 Benchmark]: CodeCheck took 272.02ms. Allocated memory is still 104.9MB. Free memory was 63.9MB in the beginning and 54.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 04:47:21,017 INFO L158 Benchmark]: Witness Printer took 41.78ms. Allocated memory is still 104.9MB. Free memory was 54.3MB in the beginning and 53.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 04:47:21,026 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, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, oldx; [L24] x = __VERIFIER_nondet_int() [L25] oldx = __VERIFIER_nondet_int() [L26] x > 1 && 2*x <= oldx VAL [x=0, x=1073741824, x > 1 && 2*x <= oldx=1] [L26] 2*x VAL [x=1073741824, x=0, x > 1 && 2*x <= oldx=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23ms. Allocated memory is still 104.9MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.87ms. Allocated memory is still 104.9MB. Free memory was 67.9MB in the beginning and 74.8MB in the end (delta: -7.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.16ms. Allocated memory is still 104.9MB. Free memory was 74.8MB in the beginning and 73.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.30ms. Allocated memory is still 104.9MB. Free memory was 73.6MB in the beginning and 72.7MB in the end (delta: 848.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 294.22ms. Allocated memory is still 104.9MB. Free memory was 72.3MB in the beginning and 63.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 272.02ms. Allocated memory is still 104.9MB. Free memory was 63.9MB in the beginning and 54.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 41.78ms. Allocated memory is still 104.9MB. Free memory was 54.3MB in the beginning and 53.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-21 04:47:21,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b672b58d-eadd-4368-8310-56887b1113f9/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)