./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.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_85bfffab-225a-4687-8a13-f19fc09c27da/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/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_85bfffab-225a-4687-8a13-f19fc09c27da/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/bin/ukojak-vF6T2TMglN/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/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_85bfffab-225a-4687-8a13-f19fc09c27da/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 a6e3a784a750bf7b16fa903053e15129f66e8882f86a4384a56334995c21abd1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 04:26:04,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 04:26:04,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 04:26:04,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 04:26:04,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 04:26:04,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 04:26:04,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 04:26:04,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 04:26:04,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 04:26:04,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 04:26:04,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 04:26:04,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 04:26:04,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 04:26:04,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 04:26:04,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 04:26:04,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 04:26:04,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 04:26:04,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 04:26:04,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 04:26:04,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 04:26:04,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 04:26:04,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 04:26:04,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 04:26:04,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 04:26:04,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 04:26:04,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 04:26:04,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 04:26:04,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 04:26:04,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 04:26:04,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 04:26:04,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 04:26:04,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 04:26:04,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 04:26:04,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 04:26:04,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 04:26:04,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 04:26:04,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 04:26:04,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 04:26:04,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 04:26:04,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 04:26:04,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 04:26:04,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/bin/ukojak-vF6T2TMglN/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-21 04:26:04,455 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 04:26:04,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 04:26:04,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 04:26:04,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-21 04:26:04,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 04:26:04,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 04:26:04,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 04:26:04,458 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 04:26:04,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 04:26:04,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 04:26:04,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 04:26:04,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 04:26:04,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 04:26:04,460 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 04:26:04,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 04:26:04,460 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 04:26:04,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 04:26:04,461 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 04:26:04,461 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 04:26:04,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 04:26:04,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 04:26:04,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 04:26:04,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 04:26:04,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 04:26:04,463 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 04:26:04,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 04:26:04,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 04:26:04,463 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_85bfffab-225a-4687-8a13-f19fc09c27da/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6e3a784a750bf7b16fa903053e15129f66e8882f86a4384a56334995c21abd1 [2021-11-21 04:26:04,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 04:26:04,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 04:26:04,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 04:26:04,758 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 04:26:04,759 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 04:26:04,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c [2021-11-21 04:26:04,828 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/bin/ukojak-vF6T2TMglN/data/c5fcbed17/2b796dde3bac4e68a97fc75f01114046/FLAG9d32ec9b1 [2021-11-21 04:26:05,221 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 04:26:05,222 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c [2021-11-21 04:26:05,228 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/bin/ukojak-vF6T2TMglN/data/c5fcbed17/2b796dde3bac4e68a97fc75f01114046/FLAG9d32ec9b1 [2021-11-21 04:26:05,620 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/bin/ukojak-vF6T2TMglN/data/c5fcbed17/2b796dde3bac4e68a97fc75f01114046 [2021-11-21 04:26:05,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 04:26:05,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 04:26:05,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 04:26:05,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 04:26:05,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 04:26:05,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:26:05" (1/1) ... [2021-11-21 04:26:05,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30481b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05, skipping insertion in model container [2021-11-21 04:26:05,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:26:05" (1/1) ... [2021-11-21 04:26:05,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 04:26:05,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 04:26:05,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 04:26:05,817 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 04:26:05,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 04:26:05,846 INFO L208 MainTranslator]: Completed translation [2021-11-21 04:26:05,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05 WrapperNode [2021-11-21 04:26:05,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 04:26:05,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 04:26:05,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 04:26:05,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 04:26:05,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2021-11-21 04:26:05,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2021-11-21 04:26:05,880 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2021-11-21 04:26:05,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 04:26:05,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 04:26:05,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 04:26:05,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 04:26:05,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2021-11-21 04:26:05,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2021-11-21 04:26:05,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2021-11-21 04:26:05,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2021-11-21 04:26:05,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2021-11-21 04:26:05,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2021-11-21 04:26:05,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2021-11-21 04:26:05,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 04:26:05,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 04:26:05,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 04:26:05,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 04:26:05,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05" (1/1) ... [2021-11-21 04:26:05,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 04:26:05,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 04:26:05,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 04:26:05,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 04:26:05,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 04:26:05,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 04:26:06,040 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 04:26:06,042 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 04:26:06,123 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 04:26:06,139 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 04:26:06,140 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 04:26:06,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:26:06 BoogieIcfgContainer [2021-11-21 04:26:06,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 04:26:06,143 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 04:26:06,143 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 04:26:06,152 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 04:26:06,152 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:26:06" (1/1) ... [2021-11-21 04:26:06,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 04:26:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:26:06,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-11-21 04:26:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-11-21 04:26:06,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 04:26:06,213 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:26:06,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:26:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 04:26:06,280 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 04:26:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 04:26:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 04:26:06,309 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 04:26:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 04:26:06,319 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-11-21 04:26:06,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 04:26:06 ImpRootNode [2021-11-21 04:26:06,340 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-21 04:26:06,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 04:26:06,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 04:26:06,341 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 04:26:06,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:26:06" (3/4) ... [2021-11-21 04:26:06,344 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-21 04:26:06,378 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/bin/ukojak-vF6T2TMglN/witness.graphml [2021-11-21 04:26:06,379 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 04:26:06,380 INFO L158 Benchmark]: Toolchain (without parser) took 755.32ms. Allocated memory is still 86.0MB. Free memory was 50.2MB in the beginning and 42.5MB in the end (delta: 7.7MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-11-21 04:26:06,381 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 86.0MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 04:26:06,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.57ms. Allocated memory is still 86.0MB. Free memory was 50.0MB in the beginning and 64.6MB in the end (delta: -14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 04:26:06,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.47ms. Allocated memory is still 86.0MB. Free memory was 64.6MB in the beginning and 63.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 04:26:06,383 INFO L158 Benchmark]: Boogie Preprocessor took 26.60ms. Allocated memory is still 86.0MB. Free memory was 63.2MB in the beginning and 62.3MB in the end (delta: 849.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 04:26:06,384 INFO L158 Benchmark]: RCFGBuilder took 231.81ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 53.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 04:26:06,385 INFO L158 Benchmark]: CodeCheck took 197.36ms. Allocated memory is still 86.0MB. Free memory was 53.5MB in the beginning and 44.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 04:26:06,386 INFO L158 Benchmark]: Witness Printer took 37.68ms. Allocated memory is still 86.0MB. Free memory was 44.1MB in the beginning and 42.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 04:26:06,391 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, 11 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, 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, 3 NumberOfCodeBlocks, 3 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: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y, oldx; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x < 5 [L27] oldx = x VAL [x=0, x=0, y=-2147483648] [L28] oldx - y VAL [x=0, x=0, y=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 86.0MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.57ms. Allocated memory is still 86.0MB. Free memory was 50.0MB in the beginning and 64.6MB in the end (delta: -14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.47ms. Allocated memory is still 86.0MB. Free memory was 64.6MB in the beginning and 63.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.60ms. Allocated memory is still 86.0MB. Free memory was 63.2MB in the beginning and 62.3MB in the end (delta: 849.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 231.81ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 53.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 197.36ms. Allocated memory is still 86.0MB. Free memory was 53.5MB in the beginning and 44.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 37.68ms. Allocated memory is still 86.0MB. Free memory was 44.1MB in the beginning and 42.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-21 04:26:06,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfffab-225a-4687-8a13-f19fc09c27da/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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)