./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrncmp.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrncmp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --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 87534de3d459ca9409f2dccef0ebbf0eeafdc010d6ce5fc12d39e28438c1bbdf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 22:31:01,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 22:31:01,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-05 22:31:01,863 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 22:31:01,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 22:31:01,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 22:31:01,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 22:31:01,883 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 22:31:01,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 22:31:01,884 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 22:31:01,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 22:31:01,884 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 22:31:01,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 22:31:01,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 22:31:01,884 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 22:31:01,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 22:31:01,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 22:31:01,885 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 22:31:01,885 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 22:31:01,885 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 22:31:01,885 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 22:31:01,885 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 22:31:01,885 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 22:31:01,885 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 22:31:01,885 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 22:31:01,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 22:31:01,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:31:01,886 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 22:31:01,886 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 22:31:01,886 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 22:31:01,886 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 22:31:01,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 22:31:01,886 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 87534de3d459ca9409f2dccef0ebbf0eeafdc010d6ce5fc12d39e28438c1bbdf [2024-12-05 22:31:02,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 22:31:02,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 22:31:02,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 22:31:02,146 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 22:31:02,146 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 22:31:02,147 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/termination-crafted-lit/cstrncmp.c [2024-12-05 22:31:04,809 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/data/ea458bc00/8466c8f6587d406188ccfb3d2d6289bc/FLAG98421cb17 [2024-12-05 22:31:05,020 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 22:31:05,021 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/sv-benchmarks/c/termination-crafted-lit/cstrncmp.c [2024-12-05 22:31:05,027 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/data/ea458bc00/8466c8f6587d406188ccfb3d2d6289bc/FLAG98421cb17 [2024-12-05 22:31:05,042 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/data/ea458bc00/8466c8f6587d406188ccfb3d2d6289bc [2024-12-05 22:31:05,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 22:31:05,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 22:31:05,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 22:31:05,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 22:31:05,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 22:31:05,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7025d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:31:05, skipping insertion in model container [2024-12-05 22:31:05,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,065 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 22:31:05,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:31:05,204 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 22:31:05,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:31:05,224 INFO L204 MainTranslator]: Completed translation [2024-12-05 22:31:05,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:31:05 WrapperNode [2024-12-05 22:31:05,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 22:31:05,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 22:31:05,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 22:31:05,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 22:31:05,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,234 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,249 INFO L138 Inliner]: procedures = 11, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2024-12-05 22:31:05,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 22:31:05,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 22:31:05,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 22:31:05,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 22:31:05,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,258 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,258 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,262 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,263 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,267 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,268 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,269 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 22:31:05,271 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 22:31:05,271 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 22:31:05,271 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 22:31:05,272 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:31:05,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 22:31:05,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 22:31:05,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 22:31:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 22:31:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2024-12-05 22:31:05,318 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2024-12-05 22:31:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-05 22:31:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 22:31:05,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 22:31:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 22:31:05,372 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 22:31:05,373 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 22:31:05,505 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-12-05 22:31:05,505 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 22:31:05,547 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 22:31:05,547 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 22:31:05,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:31:05 BoogieIcfgContainer [2024-12-05 22:31:05,548 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 22:31:05,549 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 22:31:05,549 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 22:31:05,558 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 22:31:05,558 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:31:05" (1/1) ... [2024-12-05 22:31:05,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 22:31:05,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:31:05,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2024-12-05 22:31:05,614 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-12-05 22:31:05,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 22:31:05,615 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:31:05,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:31:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:31:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:31:05,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:31:05,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2024-12-05 22:31:05,841 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-12-05 22:31:05,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-05 22:31:05,844 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:31:05,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:31:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:31:05,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:31:05,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:31:05,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-12-05 22:31:05,965 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-12-05 22:31:05,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-05 22:31:05,966 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:31:05,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:31:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:31:06,000 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:31:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:31:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:31:06,084 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:31:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:31:06,122 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-12-05 22:31:06,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 10:31:06 ImpRootNode [2024-12-05 22:31:06,150 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 22:31:06,151 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 22:31:06,151 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 22:31:06,151 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 22:31:06,151 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:31:05" (3/4) ... [2024-12-05 22:31:06,152 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 22:31:06,191 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 9. [2024-12-05 22:31:06,226 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 22:31:06,226 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 22:31:06,226 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 22:31:06,227 INFO L158 Benchmark]: Toolchain (without parser) took 1181.43ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 53.7MB in the end (delta: 63.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-05 22:31:06,227 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:31:06,228 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.68ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 106.2MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 22:31:06,228 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.71ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 105.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:31:06,228 INFO L158 Benchmark]: Boogie Preprocessor took 20.63ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 104.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:31:06,229 INFO L158 Benchmark]: RCFGBuilder took 277.27ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 88.9MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:31:06,229 INFO L158 Benchmark]: CodeCheck took 601.25ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 58.3MB in the end (delta: 30.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-05 22:31:06,229 INFO L158 Benchmark]: Witness Printer took 75.90ms. Allocated memory is still 142.6MB. Free memory was 58.0MB in the beginning and 53.7MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:31:06,231 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 6 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s 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, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 33]: integer overflow possible integer overflow possible We found a FailurePath: [L47] CALL, EXPR build_nondet_String() [L13] int length = __VERIFIER_nondet_int(); [L14] COND TRUE length < 1 [L15] length = 1 [L17] char* nondetString = (char*) malloc(length * sizeof(char)); [L18] EXPR length-1 [L18] nondetString[length-1] = '\0' [L19] return nondetString; [L47] RET, EXPR build_nondet_String() [L47] CALL, EXPR build_nondet_String() [L13] int length = __VERIFIER_nondet_int(); [L14] COND FALSE !(length < 1) [L17] char* nondetString = (char*) malloc(length * sizeof(char)); [L18] EXPR length-1 [L18] nondetString[length-1] = '\0' [L19] return nondetString; [L47] RET, EXPR build_nondet_String() [L47] CALL cstrncmp(build_nondet_String(),build_nondet_String(),__VERIFIER_nondet_int()) [L28] unsigned char uc1, uc2; VAL [n=-2147483648, s1={-1:0}, s2={-2:0}] [L30] COND FALSE !(n == 0) VAL [n=-2147483648, s1={-1:0}, s2={-2:0}] [L33] n-- VAL [s1={-1:0}, s2={-2:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 177.68ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 106.2MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.71ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 105.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.63ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 104.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 277.27ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 88.9MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 601.25ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 58.3MB in the end (delta: 30.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 75.90ms. Allocated memory is still 142.6MB. Free memory was 58.0MB in the beginning and 53.7MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-05 22:31:06,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3028885d-efd7-4adc-89e3-8e6cc6f6fe22/bin/ukojak-verify-CZk0znPC7b/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)