./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array05_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_37707e20-8801-4886-937e-7dce58e15a25/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37707e20-8801-4886-937e-7dce58e15a25/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_37707e20-8801-4886-937e-7dce58e15a25/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37707e20-8801-4886-937e-7dce58e15a25/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/array05_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37707e20-8801-4886-937e-7dce58e15a25/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_37707e20-8801-4886-937e-7dce58e15a25/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 56a165d97308b6a8d546544238ca4475941b4df8b50fd85223f9c1004e26db93 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:54:57,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:54:57,396 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37707e20-8801-4886-937e-7dce58e15a25/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 00:54:57,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 00:54:57,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 00:54:57,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:54:57,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:54:57,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:54:57,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:54:57,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:54:57,422 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:54:57,422 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:54:57,422 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 00:54:57,422 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:54:57,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:54:57,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:54:57,422 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:54:57,422 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 00:54:57,422 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 00:54:57,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:54:57,423 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:54:57,423 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:54:57,423 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:54:57,423 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:54:57,423 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:54:57,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:54:57,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:54:57,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:54:57,423 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:54:57,423 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:54:57,423 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 00:54:57,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 00:54:57,424 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_37707e20-8801-4886-937e-7dce58e15a25/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 -> 56a165d97308b6a8d546544238ca4475941b4df8b50fd85223f9c1004e26db93 [2024-12-06 00:54:57,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:54:57,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:54:57,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:54:57,663 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:54:57,663 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:54:57,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37707e20-8801-4886-937e-7dce58e15a25/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/termination-15/array05_alloca.i [2024-12-06 00:55:00,378 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37707e20-8801-4886-937e-7dce58e15a25/bin/ukojak-verify-CZk0znPC7b/data/b44c6af70/96701676830c46f28b62c8f4a4e1724a/FLAGb9ffe0588 [2024-12-06 00:55:00,586 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:55:00,587 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37707e20-8801-4886-937e-7dce58e15a25/sv-benchmarks/c/termination-15/array05_alloca.i [2024-12-06 00:55:00,595 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37707e20-8801-4886-937e-7dce58e15a25/bin/ukojak-verify-CZk0znPC7b/data/b44c6af70/96701676830c46f28b62c8f4a4e1724a/FLAGb9ffe0588 [2024-12-06 00:55:00,610 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37707e20-8801-4886-937e-7dce58e15a25/bin/ukojak-verify-CZk0znPC7b/data/b44c6af70/96701676830c46f28b62c8f4a4e1724a [2024-12-06 00:55:00,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:55:00,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:55:00,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:55:00,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:55:00,619 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:55:00,620 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:55:00" (1/1) ... [2024-12-06 00:55:00,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d15b73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:55:00, skipping insertion in model container [2024-12-06 00:55:00,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:55:00" (1/1) ... [2024-12-06 00:55:00,642 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:55:00,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:55:00,895 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:55:00,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:55:00,955 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:55:00,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:55:00 WrapperNode [2024-12-06 00:55:00,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:55:00,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:55:00,956 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:55:00,956 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:55:00,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:55:00" (1/1) ... [2024-12-06 00:55:00,971 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:55:00" (1/1) ... [2024-12-06 00:55:00,986 INFO L138 Inliner]: procedures = 151, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2024-12-06 00:55:00,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:55:00,987 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:55:00,987 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:55:00,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:55:00,994 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:55:00" (1/1) ... [2024-12-06 00:55:00,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:55:00" (1/1) ... [2024-12-06 00:55:00,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:55:00" (1/1) ... [2024-12-06 00:55:00,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:55:00" (1/1) ... [2024-12-06 00:55:01,000 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:55:00" (1/1) ... [2024-12-06 00:55:01,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:55:00" (1/1) ... [2024-12-06 00:55:01,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:55:00" (1/1) ... [2024-12-06 00:55:01,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:55:00" (1/1) ... [2024-12-06 00:55:01,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:55:00" (1/1) ... [2024-12-06 00:55:01,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:55:01,007 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:55:01,007 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:55:01,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:55:01,008 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:55:00" (1/1) ... [2024-12-06 00:55:01,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:55:01,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37707e20-8801-4886-937e-7dce58e15a25/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:55:01,039 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37707e20-8801-4886-937e-7dce58e15a25/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:55:01,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37707e20-8801-4886-937e-7dce58e15a25/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:55:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 00:55:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 00:55:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 00:55:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 00:55:01,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:55:01,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:55:01,133 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:55:01,135 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:55:01,274 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-12-06 00:55:01,274 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:55:01,321 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:55:01,322 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-06 00:55:01,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:55:01 BoogieIcfgContainer [2024-12-06 00:55:01,322 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:55:01,323 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:55:01,323 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:55:01,333 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:55:01,334 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:55:01" (1/1) ... [2024-12-06 00:55:01,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:55:01,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:55:01,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2024-12-06 00:55:01,401 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-12-06 00:55:01,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 00:55:01,404 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:55:01,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:55:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:55:01,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:55:01,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:55:01,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2024-12-06 00:55:01,683 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-12-06 00:55:01,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 00:55:01,684 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:55:01,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:55:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:55:01,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:55:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:55:01,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2024-12-06 00:55:01,775 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-12-06 00:55:01,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 00:55:01,776 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:55:01,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:55:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:55:01,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:55:01,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:55:01,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2024-12-06 00:55:01,897 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2024-12-06 00:55:01,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 00:55:01,898 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:55:01,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:55:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:55:02,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:55:02,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:55:02,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-12-06 00:55:02,119 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-12-06 00:55:02,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 00:55:02,121 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:55:02,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:55:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:55:02,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:55:02,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:55:02,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2024-12-06 00:55:02,387 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2024-12-06 00:55:02,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 00:55:02,387 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:55:02,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:55:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:55:02,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:55:03,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:55:03,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 33 states and 49 transitions. [2024-12-06 00:55:03,366 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2024-12-06 00:55:03,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 00:55:03,367 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:55:03,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:55:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:55:03,379 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:55:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:55:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:55:03,419 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:55:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:55:03,438 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2024-12-06 00:55:03,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 12:55:03 ImpRootNode [2024-12-06 00:55:03,462 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 00:55:03,463 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 00:55:03,463 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 00:55:03,463 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 00:55:03,464 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:55:01" (3/4) ... [2024-12-06 00:55:03,465 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 00:55:03,500 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 6. [2024-12-06 00:55:03,542 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37707e20-8801-4886-937e-7dce58e15a25/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 00:55:03,542 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37707e20-8801-4886-937e-7dce58e15a25/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 00:55:03,542 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 00:55:03,543 INFO L158 Benchmark]: Toolchain (without parser) took 2929.86ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 38.1MB in the end (delta: 53.9MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. [2024-12-06 00:55:03,544 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:55:03,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.18ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 73.7MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 00:55:03,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.60ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 72.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:55:03,544 INFO L158 Benchmark]: Boogie Preprocessor took 19.16ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 71.5MB in the end (delta: 883.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:55:03,545 INFO L158 Benchmark]: RCFGBuilder took 314.91ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 59.0MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:55:03,545 INFO L158 Benchmark]: CodeCheck took 2139.86ms. Allocated memory is still 117.4MB. Free memory was 58.7MB in the beginning and 42.4MB in the end (delta: 16.3MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-12-06 00:55:03,545 INFO L158 Benchmark]: Witness Printer took 79.33ms. Allocated memory is still 117.4MB. Free memory was 42.4MB in the beginning and 38.1MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:55:03,547 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: 2.1s, 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, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.4s 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, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s 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 TRUE length < 1 [L367] 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