./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ --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 1cbace5580915338bbd4f6efe69f1fa46dac7d6ce729fb2189890b13c893a5f0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:42:21,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:42:21,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:42:21,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:42:21,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:42:21,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:42:21,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:42:21,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:42:21,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:42:21,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:42:21,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:42:21,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:42:21,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:42:21,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:42:21,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:42:21,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:42:21,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:42:21,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:42:21,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:42:21,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:42:21,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:42:21,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:42:21,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:42:21,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:42:21,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:42:21,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:42:21,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:42:21,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:42:21,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:42:21,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:42:21,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:42:21,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:42:21,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:42:21,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:42:21,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:42:21,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:42:21,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:42:21,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:42:21,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:42:21,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:42:21,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:42:21,597 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-23 01:42:21,622 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:42:21,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:42:21,623 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:42:21,624 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:42:21,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:42:21,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:42:21,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:42:21,625 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 01:42:21,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:42:21,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:42:21,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:42:21,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:42:21,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:42:21,627 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 01:42:21,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:42:21,627 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:42:21,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:42:21,628 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:42:21,628 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:42:21,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:42:21,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:42:21,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:42:21,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:42:21,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:42:21,635 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:42:21,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:42:21,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:42:21,635 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_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cbace5580915338bbd4f6efe69f1fa46dac7d6ce729fb2189890b13c893a5f0 [2021-11-23 01:42:21,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:42:21,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:42:21,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:42:21,949 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:42:21,950 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:42:21,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c [2021-11-23 01:42:22,016 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/data/94f0ab39a/8e6af8e46cab4a619b280a97f61ced2b/FLAG8448140f4 [2021-11-23 01:42:22,628 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:42:22,628 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c [2021-11-23 01:42:22,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/data/94f0ab39a/8e6af8e46cab4a619b280a97f61ced2b/FLAG8448140f4 [2021-11-23 01:42:22,664 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/data/94f0ab39a/8e6af8e46cab4a619b280a97f61ced2b [2021-11-23 01:42:22,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:42:22,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:42:22,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:42:22,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:42:22,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:42:22,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:22" (1/1) ... [2021-11-23 01:42:22,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@631f8922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:22, skipping insertion in model container [2021-11-23 01:42:22,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:22" (1/1) ... [2021-11-23 01:42:22,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:42:22,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:42:22,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:42:22,918 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:42:22,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:42:22,952 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:42:22,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:22 WrapperNode [2021-11-23 01:42:22,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:42:22,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:42:22,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:42:22,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:42:22,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:22" (1/1) ... [2021-11-23 01:42:22,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:22" (1/1) ... [2021-11-23 01:42:22,988 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2021-11-23 01:42:22,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:42:22,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:42:22,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:42:22,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:42:23,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:22" (1/1) ... [2021-11-23 01:42:23,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:22" (1/1) ... [2021-11-23 01:42:23,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:22" (1/1) ... [2021-11-23 01:42:23,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:22" (1/1) ... [2021-11-23 01:42:23,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:22" (1/1) ... [2021-11-23 01:42:23,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:22" (1/1) ... [2021-11-23 01:42:23,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:22" (1/1) ... [2021-11-23 01:42:23,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:42:23,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:42:23,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:42:23,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:42:23,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:22" (1/1) ... [2021-11-23 01:42:23,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:42:23,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:42:23,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:42:23,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:42:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:42:23,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:42:23,183 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:42:23,185 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:42:23,316 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:42:23,337 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:42:23,338 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:42:23,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:23 BoogieIcfgContainer [2021-11-23 01:42:23,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:42:23,343 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:42:23,343 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:42:23,353 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:42:23,354 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:23" (1/1) ... [2021-11-23 01:42:23,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:42:23,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:23,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2021-11-23 01:42:23,449 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-11-23 01:42:23,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 01:42:23,451 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:23,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:23,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:23,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:23,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2021-11-23 01:42:23,738 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-11-23 01:42:23,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:42:23,739 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:23,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:42:23,746 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:42:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:42:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:42:23,774 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:42:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:42:23,783 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2021-11-23 01:42:23,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:42:23 ImpRootNode [2021-11-23 01:42:23,839 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:42:23,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:42:23,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:42:23,842 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:42:23,843 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:23" (3/4) ... [2021-11-23 01:42:23,845 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:42:23,893 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:42:23,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:42:23,901 INFO L158 Benchmark]: Toolchain (without parser) took 1223.82ms. Allocated memory is still 113.2MB. Free memory was 81.0MB in the beginning and 60.9MB in the end (delta: 20.1MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2021-11-23 01:42:23,902 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:42:23,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.91ms. Allocated memory is still 113.2MB. Free memory was 80.7MB in the beginning and 88.1MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:42:23,906 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.35ms. Allocated memory is still 113.2MB. Free memory was 88.1MB in the beginning and 86.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:42:23,906 INFO L158 Benchmark]: Boogie Preprocessor took 26.84ms. Allocated memory is still 113.2MB. Free memory was 86.8MB in the beginning and 86.0MB in the end (delta: 763.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:42:23,907 INFO L158 Benchmark]: RCFGBuilder took 322.80ms. Allocated memory is still 113.2MB. Free memory was 85.7MB in the beginning and 77.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:42:23,909 INFO L158 Benchmark]: CodeCheck took 496.45ms. Allocated memory is still 113.2MB. Free memory was 77.3MB in the beginning and 63.0MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 01:42:23,912 INFO L158 Benchmark]: Witness Printer took 52.33ms. Allocated memory is still 113.2MB. Free memory was 63.0MB in the beginning and 60.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:42:23,919 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: 0.4s, OverallIterations: 2, 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, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 2 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 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=1073741825, x=0, x > 1 && -2*x == oldx=1] [L26] -2*x VAL [x=0, x=1073741825, x > 1 && -2*x == oldx=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.91ms. Allocated memory is still 113.2MB. Free memory was 80.7MB in the beginning and 88.1MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.35ms. Allocated memory is still 113.2MB. Free memory was 88.1MB in the beginning and 86.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.84ms. Allocated memory is still 113.2MB. Free memory was 86.8MB in the beginning and 86.0MB in the end (delta: 763.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 322.80ms. Allocated memory is still 113.2MB. Free memory was 85.7MB in the beginning and 77.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 496.45ms. Allocated memory is still 113.2MB. Free memory was 77.3MB in the beginning and 63.0MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 52.33ms. Allocated memory is still 113.2MB. Free memory was 63.0MB in the beginning and 60.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 01:42:23,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c90f7446-9d36-4bba-a1cf-12ef520d7c24/bin/ukojak-LBtLqBUTdQ/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)