./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/chunk3.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_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/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_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/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_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/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 19fa5e5331bf5f5328e727d3adbf080a08b9ec2fa548b9c0eb2f35cc19738b3d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:33:17,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:33:17,883 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 04:33:17,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:33:17,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:33:17,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:33:17,909 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:33:17,910 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:33:17,910 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:33:17,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:33:17,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:33:17,910 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:33:17,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:33:17,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:33:17,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:33:17,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:33:17,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:33:17,911 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 04:33:17,911 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:33:17,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:33:17,911 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:33:17,911 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:33:17,911 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:33:17,911 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:33:17,911 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:33:17,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:33:17,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:33:17,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:33:17,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:33:17,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:33:17,912 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:33:17,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:33:17,912 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_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/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 -> 19fa5e5331bf5f5328e727d3adbf080a08b9ec2fa548b9c0eb2f35cc19738b3d [2024-12-06 04:33:18,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:33:18,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:33:18,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:33:18,174 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:33:18,175 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:33:18,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i [2024-12-06 04:33:20,860 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/bin/ukojak-verify-CZk0znPC7b/data/98036940f/534c990d32074e1cad081bf25c76f276/FLAGf664c3bac [2024-12-06 04:33:21,053 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:33:21,054 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/sv-benchmarks/c/termination-recursive-malloc/chunk3.i [2024-12-06 04:33:21,061 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/bin/ukojak-verify-CZk0znPC7b/data/98036940f/534c990d32074e1cad081bf25c76f276/FLAGf664c3bac [2024-12-06 04:33:21,075 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/bin/ukojak-verify-CZk0znPC7b/data/98036940f/534c990d32074e1cad081bf25c76f276 [2024-12-06 04:33:21,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:33:21,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:33:21,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:33:21,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:33:21,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:33:21,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f439108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:21, skipping insertion in model container [2024-12-06 04:33:21,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,099 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:33:21,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:33:21,243 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:33:21,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:33:21,273 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:33:21,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:21 WrapperNode [2024-12-06 04:33:21,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:33:21,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:33:21,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:33:21,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:33:21,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,286 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,301 INFO L138 Inliner]: procedures = 13, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2024-12-06 04:33:21,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:33:21,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:33:21,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:33:21,302 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:33:21,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,311 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,318 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,319 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,321 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,322 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,324 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:33:21,325 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:33:21,325 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:33:21,325 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:33:21,326 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:33:21,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:33:21,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:33:21,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:33:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 04:33:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2024-12-06 04:33:21,384 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2024-12-06 04:33:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 04:33:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 04:33:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 04:33:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:33:21,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:33:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 04:33:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 04:33:21,456 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:33:21,458 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:33:21,621 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-12-06 04:33:21,622 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:33:21,641 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:33:21,641 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 04:33:21,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:33:21 BoogieIcfgContainer [2024-12-06 04:33:21,642 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:33:21,642 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:33:21,642 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:33:21,650 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:33:21,650 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:33:21" (1/1) ... [2024-12-06 04:33:21,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:33:21,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:33:21,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-12-06 04:33:21,695 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-12-06 04:33:21,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 04:33:21,698 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:33:21,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:33:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:33:22,506 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 04:33:22,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:33:22,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 24 transitions. [2024-12-06 04:33:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-12-06 04:33:22,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 04:33:22,717 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:33:22,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:33:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:33:23,231 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 04:33:23,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:33:23,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 30 transitions. [2024-12-06 04:33:23,938 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2024-12-06 04:33:23,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 04:33:23,939 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:33:23,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:33:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:33:25,080 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 04:33:27,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:33:27,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 30 states and 46 transitions. [2024-12-06 04:33:27,035 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2024-12-06 04:33:27,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 04:33:27,036 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:33:27,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:33:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:33:27,109 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:33:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:33:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:33:27,595 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:33:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:33:27,876 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-12-06 04:33:27,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:33:27 ImpRootNode [2024-12-06 04:33:27,904 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:33:27,904 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:33:27,904 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:33:27,905 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:33:27,905 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:33:21" (3/4) ... [2024-12-06 04:33:27,906 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 04:33:27,945 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 6. [2024-12-06 04:33:27,984 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 04:33:27,984 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 04:33:27,984 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:33:27,985 INFO L158 Benchmark]: Toolchain (without parser) took 6906.59ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 115.7MB in the beginning and 314.5MB in the end (delta: -198.8MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2024-12-06 04:33:27,985 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:33:27,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.86ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 105.1MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:33:27,986 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.47ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 103.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:33:27,986 INFO L158 Benchmark]: Boogie Preprocessor took 22.10ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 102.6MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:33:27,986 INFO L158 Benchmark]: RCFGBuilder took 316.99ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 87.4MB in the end (delta: 15.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:33:27,987 INFO L158 Benchmark]: CodeCheck took 6261.32ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 87.4MB in the beginning and 318.2MB in the end (delta: -230.8MB). Peak memory consumption was 183.5MB. Max. memory is 16.1GB. [2024-12-06 04:33:27,987 INFO L158 Benchmark]: Witness Printer took 79.86ms. Allocated memory is still 352.3MB. Free memory was 318.2MB in the beginning and 314.5MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:33:27,989 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 209 IncrementalHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 20 mSDtfsCounter, 209 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 242 GetRequests, 162 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1472 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 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: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L32] int **data = malloc(4*sizeof(int*)); [L35] int *p0 = malloc(sizeof(int)); [L36] int *p1 = malloc(sizeof(int)); [L37] int *p2 = malloc(sizeof(int)); [L38] int *p3 = malloc(sizeof(int)); [L41] int i = __VERIFIER_nondet_int(); [L42] int upper = __VERIFIER_nondet_int(); [L44] COND FALSE !(i >= upper) [L47] *p0 = i [L48] *p3 = upper [L52] data[0] = p0 [L53] data[1] = p1 [L54] data[2] = p2 [L55] data[3] = p3 VAL [data={2147483649:0}] [L59] CALL chunk(data) VAL [\old(data)={2147483649:0}] [L9] EXPR data[0] [L9] int *p0 = data[0]; [L10] EXPR data[1] [L10] int *p1 = data[1]; [L11] EXPR data[2] [L11] int *p2 = data[2]; [L12] EXPR data[3] [L12] int *p3 = data[3]; [L14] EXPR \read(*p0) [L14] EXPR \read(*p3) VAL [\old(data)={2147483649:0}, data={2147483649:0}, p0={2147483648:0}, p2={-3:0}, p3={2147483647:0}] [L14] COND FALSE !(*p0 >= *p3) [L17] EXPR \read(*p0) [L17] (*p0)++ [L19] EXPR \read(*p3) [L19] *p2 = *p3 [L21] data[1] = malloc(sizeof(int*)) [L22] EXPR data[1] [L22] data[2] = data[1] [L23] EXPR data[2] [L23] data[3] = data[2] [L25] CALL chunk(data) VAL [\old(data)={2147483649:0}] [L9] EXPR data[0] [L9] int *p0 = data[0]; [L10] EXPR data[1] [L10] int *p1 = data[1]; [L11] EXPR data[2] [L11] int *p2 = data[2]; [L12] EXPR data[3] [L12] int *p3 = data[3]; [L14] EXPR \read(*p0) [L14] EXPR \read(*p3) VAL [\old(data)={2147483649:0}, data={2147483649:0}, p0={2147483648:0}, p2={-2:0}, p3={-2:0}] [L14] COND FALSE !(*p0 >= *p3) [L17] EXPR \read(*p0) [L17] (*p0)++ VAL [\old(data)={2147483649:0}, data={2147483649:0}, p0={2147483648:0}, p2={-2:0}, p3={-2:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.86ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 105.1MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.47ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 103.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.10ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 102.6MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 316.99ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 87.4MB in the end (delta: 15.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 6261.32ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 87.4MB in the beginning and 318.2MB in the end (delta: -230.8MB). Peak memory consumption was 183.5MB. Max. memory is 16.1GB. * Witness Printer took 79.86ms. Allocated memory is still 352.3MB. Free memory was 318.2MB in the beginning and 314.5MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 04:33:28,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f14f9fa-bf14-46cf-8a92-8a4982ce4121/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)