./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig8-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig8-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm --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 426ef1f4309d9dc2735a49adbb003bde9d9b1a56bbe25c12fae7f655f97fb3a3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:24:38,024 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:24:38,139 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 22:24:38,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:24:38,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:24:38,196 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:24:38,197 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:24:38,198 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:24:38,198 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:24:38,198 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:24:38,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:24:38,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:24:38,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:24:38,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:24:38,200 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:24:38,200 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:24:38,201 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:24:38,201 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:24:38,201 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:24:38,201 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:24:38,201 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:24:38,201 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:24:38,201 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:24:38,201 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:24:38,202 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:24:38,202 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:24:38,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:24:38,202 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:24:38,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:24:38,202 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:24:38,202 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:24:38,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:24:38,203 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_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm 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 -> 426ef1f4309d9dc2735a49adbb003bde9d9b1a56bbe25c12fae7f655f97fb3a3 [2024-11-13 22:24:38,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:24:38,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:24:38,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:24:38,600 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:24:38,601 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:24:38,602 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig8-alloca-2.i Unable to find full path for "g++" [2024-11-13 22:24:40,751 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:24:41,211 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:24:41,212 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig8-alloca-2.i [2024-11-13 22:24:41,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm/data/1946e1307/42cb784fad17488dbc57d9d5dc8765fb/FLAG2f388a721 [2024-11-13 22:24:41,333 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm/data/1946e1307/42cb784fad17488dbc57d9d5dc8765fb [2024-11-13 22:24:41,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:24:41,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:24:41,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:24:41,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:24:41,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:24:41,351 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:24:41" (1/1) ... [2024-11-13 22:24:41,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18610ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:41, skipping insertion in model container [2024-11-13 22:24:41,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:24:41" (1/1) ... [2024-11-13 22:24:41,406 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:24:41,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:24:41,882 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:24:41,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:24:41,978 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:24:41,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:41 WrapperNode [2024-11-13 22:24:41,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:24:41,981 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:24:41,981 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:24:41,982 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:24:41,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:41" (1/1) ... [2024-11-13 22:24:42,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:41" (1/1) ... [2024-11-13 22:24:42,041 INFO L138 Inliner]: procedures = 110, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 89 [2024-11-13 22:24:42,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:24:42,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:24:42,042 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:24:42,042 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:24:42,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:41" (1/1) ... [2024-11-13 22:24:42,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:41" (1/1) ... [2024-11-13 22:24:42,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:41" (1/1) ... [2024-11-13 22:24:42,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:41" (1/1) ... [2024-11-13 22:24:42,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:41" (1/1) ... [2024-11-13 22:24:42,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:41" (1/1) ... [2024-11-13 22:24:42,073 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:41" (1/1) ... [2024-11-13 22:24:42,078 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:41" (1/1) ... [2024-11-13 22:24:42,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:24:42,086 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:24:42,086 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:24:42,086 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:24:42,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:24:41" (1/1) ... [2024-11-13 22:24:42,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:24:42,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:24:42,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:24:42,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:24:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 22:24:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 22:24:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 22:24:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 22:24:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:24:42,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:24:42,346 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:24:42,349 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:24:42,560 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-13 22:24:42,560 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:24:42,614 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:24:42,614 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 22:24:42,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:24:42 BoogieIcfgContainer [2024-11-13 22:24:42,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:24:42,615 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:24:42,616 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:24:42,632 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:24:42,633 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:24:42" (1/1) ... [2024-11-13 22:24:42,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:24:42,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:24:42,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2024-11-13 22:24:42,706 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2024-11-13 22:24:42,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 22:24:42,709 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:24:42,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:24:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:24:43,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:24:43,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:24:43,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2024-11-13 22:24:43,445 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-11-13 22:24:43,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 22:24:43,446 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:24:43,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:24:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:24:43,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:24:43,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:24:43,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2024-11-13 22:24:43,810 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-11-13 22:24:43,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 22:24:43,810 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:24:43,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:24:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:24:44,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:24:44,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:24:44,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2024-11-13 22:24:44,121 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-11-13 22:24:44,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 22:24:44,121 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:24:44,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:24:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:24:45,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:24:47,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:24:47,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 31 states and 42 transitions. [2024-11-13 22:24:47,318 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2024-11-13 22:24:47,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 22:24:47,320 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:24:47,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:24:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:24:48,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:24:50,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:24:50,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 38 states and 57 transitions. [2024-11-13 22:24:50,275 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 57 transitions. [2024-11-13 22:24:50,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 22:24:50,276 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:24:50,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:24:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:24:50,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:24:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:24:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:24:50,482 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:24:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:24:50,529 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-13 22:24:50,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:24:50 ImpRootNode [2024-11-13 22:24:50,564 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:24:50,565 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:24:50,565 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:24:50,565 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:24:50,566 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:24:42" (3/4) ... [2024-11-13 22:24:50,567 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 22:24:50,634 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 22:24:50,634 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:24:50,635 INFO L158 Benchmark]: Toolchain (without parser) took 9296.23ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 117.3MB in the beginning and 66.4MB in the end (delta: 50.9MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. [2024-11-13 22:24:50,637 INFO L158 Benchmark]: CDTParser took 1.99ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:24:50,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 638.23ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 101.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:24:50,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.65ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 99.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:24:50,639 INFO L158 Benchmark]: Boogie Preprocessor took 42.32ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 98.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:24:50,640 INFO L158 Benchmark]: RCFGBuilder took 529.19ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 80.9MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:24:50,640 INFO L158 Benchmark]: CodeCheck took 7948.96ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 80.9MB in the beginning and 70.0MB in the end (delta: 10.9MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2024-11-13 22:24:50,641 INFO L158 Benchmark]: Witness Printer took 69.20ms. Allocated memory is still 176.2MB. Free memory was 70.0MB in the beginning and 66.4MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:24:50,647 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 1 procedures, 22 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 260 IncrementalHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 10 mSDtfsCounter, 260 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 267 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 568]: integer overflow possible integer overflow possible We found a FailurePath: [L548] int* u = __builtin_alloca (sizeof(int)); [L549] int* x = __builtin_alloca (sizeof(int)); [L550] int* v = __builtin_alloca (sizeof(int)); [L551] int* y = __builtin_alloca (sizeof(int)); [L552] int* w = __builtin_alloca (sizeof(int)); [L553] int* z = __builtin_alloca (sizeof(int)); [L554] int* c = __builtin_alloca (sizeof(int)); [L555] *x = __VERIFIER_nondet_int() [L556] *y = __VERIFIER_nondet_int() [L557] *z = __VERIFIER_nondet_int() [L558] EXPR \read(*x) [L558] *u = *x [L559] EXPR \read(*y) [L559] *v = *y [L560] EXPR \read(*z) [L560] *w = *z [L561] *c = 0 VAL [c={8625:0}, x={8627:0}, y={8624:0}, z={8626:0}] [L562] EXPR \read(*x) [L562] EXPR \read(*y) VAL [c={8625:0}, x={8627:0}, y={8624:0}, z={8626:0}] [L562] COND TRUE *x >= *y [L563] EXPR \read(*c) VAL [c={8625:0}, x={8627:0}, y={8624:0}, z={8626:0}] [L563] EXPR *c + 1 [L563] *c = *c + 1 [L564] EXPR \read(*z) VAL [c={8625:0}, x={8627:0}, y={8624:0}, z={8626:0}] [L564] COND FALSE !(*z > 1) [L568] EXPR \read(*y) VAL [c={8625:0}, x={8627:0}, y={8624:0}, z={8626:0}] [L568] *y + 1 VAL [c={8625:0}, x={8627:0}, y={8624:0}, z={8626:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.99ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 638.23ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 101.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.65ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 99.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.32ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 98.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 529.19ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 80.9MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 7948.96ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 80.9MB in the beginning and 70.0MB in the end (delta: 10.9MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * Witness Printer took 69.20ms. Allocated memory is still 176.2MB. Free memory was 70.0MB in the beginning and 66.4MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 22:24:50,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15aae85c-9404-46cb-b2ce-c349eebc07de/bin/ukojak-verify-EEHR8qb7sm/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)