./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array19_alloca.i --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_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/array19_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3 --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 aa6cff6feccdb2381551a0fc75acd9b1bca020b197764a63cc88475a7ca62ebf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:10:32,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:10:32,815 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-24 18:10:32,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 18:10:32,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-24 18:10:32,843 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:10:32,844 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:10:32,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:10:32,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:10:32,845 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:10:32,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:10:32,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:10:32,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 18:10:32,845 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:10:32,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:10:32,846 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:10:32,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:10:32,846 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 18:10:32,846 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 18:10:32,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:10:32,847 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:10:32,847 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:10:32,847 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:10:32,847 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:10:32,847 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:10:32,847 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:10:32,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:10:32,848 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:10:32,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:10:32,848 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:10:32,848 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-24 18:10:32,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 18:10:32,848 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_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3 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 -> aa6cff6feccdb2381551a0fc75acd9b1bca020b197764a63cc88475a7ca62ebf [2024-11-24 18:10:33,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:10:33,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:10:33,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:10:33,224 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:10:33,225 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:10:33,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/termination-15/array19_alloca.i [2024-11-24 18:10:36,486 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/data/10c64c365/c5c836a358284e95922ad7c5acc87795/FLAG2057002cb [2024-11-24 18:10:36,910 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:10:36,911 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/sv-benchmarks/c/termination-15/array19_alloca.i [2024-11-24 18:10:36,929 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/data/10c64c365/c5c836a358284e95922ad7c5acc87795/FLAG2057002cb [2024-11-24 18:10:36,953 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/data/10c64c365/c5c836a358284e95922ad7c5acc87795 [2024-11-24 18:10:36,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:10:36,959 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:10:36,961 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:10:36,963 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:10:36,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:10:36,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:10:36" (1/1) ... [2024-11-24 18:10:36,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4507c7e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:10:36, skipping insertion in model container [2024-11-24 18:10:36,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:10:36" (1/1) ... [2024-11-24 18:10:37,018 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:10:37,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:10:37,388 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:10:37,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:10:37,492 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:10:37,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:10:37 WrapperNode [2024-11-24 18:10:37,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:10:37,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:10:37,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:10:37,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:10:37,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:10:37" (1/1) ... [2024-11-24 18:10:37,514 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:10:37" (1/1) ... [2024-11-24 18:10:37,538 INFO L138 Inliner]: procedures = 151, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49 [2024-11-24 18:10:37,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:10:37,541 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:10:37,541 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:10:37,541 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:10:37,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:10:37" (1/1) ... [2024-11-24 18:10:37,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:10:37" (1/1) ... [2024-11-24 18:10:37,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:10:37" (1/1) ... [2024-11-24 18:10:37,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:10:37" (1/1) ... [2024-11-24 18:10:37,561 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:10:37" (1/1) ... [2024-11-24 18:10:37,562 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:10:37" (1/1) ... [2024-11-24 18:10:37,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:10:37" (1/1) ... [2024-11-24 18:10:37,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:10:37" (1/1) ... [2024-11-24 18:10:37,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:10:37" (1/1) ... [2024-11-24 18:10:37,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:10:37,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:10:37,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:10:37,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:10:37,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:10:37" (1/1) ... [2024-11-24 18:10:37,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:10:37,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:10:37,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:10:37,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:10:37,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 18:10:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 18:10:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 18:10:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 18:10:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:10:37,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:10:37,746 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:10:37,748 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 18:10:37,920 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-24 18:10:37,920 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 18:10:37,983 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 18:10:37,983 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 18:10:37,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:10:37 BoogieIcfgContainer [2024-11-24 18:10:37,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 18:10:37,985 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-24 18:10:37,985 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-24 18:10:37,999 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-24 18:10:38,000 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:10:37" (1/1) ... [2024-11-24 18:10:38,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 18:10:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:10:38,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2024-11-24 18:10:38,066 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-24 18:10:38,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-24 18:10:38,069 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:10:38,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:10:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:10:38,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:10:38,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:10:38,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2024-11-24 18:10:38,404 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-11-24 18:10:38,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-24 18:10:38,404 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:10:38,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:10:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:10:38,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:10:38,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:10:38,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2024-11-24 18:10:38,523 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-11-24 18:10:38,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-24 18:10:38,525 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:10:38,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:10:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:10:38,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:10:38,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:10:38,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2024-11-24 18:10:38,679 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2024-11-24 18:10:38,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-24 18:10:38,679 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:10:38,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:10:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:10:38,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:10:39,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:10:39,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-11-24 18:10:39,070 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-11-24 18:10:39,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-24 18:10:39,076 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:10:39,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:10:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:10:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:10:39,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:10:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2024-11-24 18:10:39,468 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2024-11-24 18:10:39,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-24 18:10:39,468 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:10:39,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:10:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:10:39,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:10:40,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:10:40,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 33 states and 49 transitions. [2024-11-24 18:10:40,791 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2024-11-24 18:10:40,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-24 18:10:40,791 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:10:40,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:10:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:10:40,814 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 18:10:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:10:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:10:40,874 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 18:10:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:10:40,897 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2024-11-24 18:10:40,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 06:10:40 ImpRootNode [2024-11-24 18:10:40,937 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-24 18:10:40,938 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 18:10:40,938 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 18:10:40,939 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 18:10:40,939 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:10:37" (3/4) ... [2024-11-24 18:10:40,940 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-24 18:10:40,989 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 6. [2024-11-24 18:10:41,039 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-24 18:10:41,040 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be36fb03-1822-4dec-8d78-637f90f86243/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-24 18:10:41,040 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 18:10:41,041 INFO L158 Benchmark]: Toolchain (without parser) took 4082.07ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 72.1MB in the end (delta: 46.1MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2024-11-24 18:10:41,041 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 142.6MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:10:41,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.98ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 99.7MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 18:10:41,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.88ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 98.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:10:41,042 INFO L158 Benchmark]: Boogie Preprocessor took 33.71ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 97.5MB in the end (delta: 753.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:10:41,042 INFO L158 Benchmark]: RCFGBuilder took 408.43ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 84.8MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 18:10:41,042 INFO L158 Benchmark]: CodeCheck took 2952.76ms. Allocated memory is still 142.6MB. Free memory was 84.5MB in the beginning and 76.6MB in the end (delta: 7.9MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-11-24 18:10:41,043 INFO L158 Benchmark]: Witness Printer took 101.44ms. Allocated memory is still 142.6MB. Free memory was 76.6MB in the beginning and 72.1MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:10:41,049 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, 18 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 261 IncrementalHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 20 mSDtfsCounter, 261 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 309 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 0/6 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: 375]: integer overflow possible integer overflow possible We found a FailurePath: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [arr={2:0}, length=1] [L369] COND FALSE !(!arr) [L370] i=0 VAL [arr={2:0}, i=0, length=1] [L370] COND TRUE i