./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 19fa5e5331bf5f5328e727d3adbf080a08b9ec2fa548b9c0eb2f35cc19738b3d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:55:00,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:55:00,644 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 21:55:00,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:55:00,649 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:55:00,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:55:00,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:55:00,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:55:00,673 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:55:00,673 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:55:00,673 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:55:00,673 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:55:00,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:55:00,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:55:00,673 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:55:00,673 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:55:00,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:55:00,674 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:55:00,674 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:55:00,674 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:55:00,674 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:55:00,674 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:55:00,674 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:55:00,674 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:55:00,674 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:55:00,675 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:55:00,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:55:00,675 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:55:00,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:55:00,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:55:00,675 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:55:00,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:55:00,675 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_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19fa5e5331bf5f5328e727d3adbf080a08b9ec2fa548b9c0eb2f35cc19738b3d [2024-11-13 21:55:01,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:55:01,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:55:01,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:55:01,031 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:55:01,031 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:55:01,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i Unable to find full path for "g++" [2024-11-13 21:55:02,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:55:03,108 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:55:03,109 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/sv-benchmarks/c/termination-recursive-malloc/chunk3.i [2024-11-13 21:55:03,116 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm/data/8a10cab13/3d427a509c6e4394be51c9c979c949e4/FLAG7631421dd [2024-11-13 21:55:03,131 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm/data/8a10cab13/3d427a509c6e4394be51c9c979c949e4 [2024-11-13 21:55:03,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:55:03,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:55:03,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:55:03,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:55:03,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:55:03,142 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:55:03" (1/1) ... [2024-11-13 21:55:03,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17269dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:55:03, skipping insertion in model container [2024-11-13 21:55:03,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:55:03" (1/1) ... [2024-11-13 21:55:03,159 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:55:03,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:55:03,307 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:55:03,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:55:03,340 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:55:03,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:55:03 WrapperNode [2024-11-13 21:55:03,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:55:03,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:55:03,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:55:03,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:55:03,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:55:03" (1/1) ... [2024-11-13 21:55:03,360 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:55:03" (1/1) ... [2024-11-13 21:55:03,379 INFO L138 Inliner]: procedures = 13, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2024-11-13 21:55:03,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:55:03,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:55:03,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:55:03,380 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:55:03,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:55:03" (1/1) ... [2024-11-13 21:55:03,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:55:03" (1/1) ... [2024-11-13 21:55:03,392 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:55:03" (1/1) ... [2024-11-13 21:55:03,394 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:55:03" (1/1) ... [2024-11-13 21:55:03,404 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:55:03" (1/1) ... [2024-11-13 21:55:03,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:55:03" (1/1) ... [2024-11-13 21:55:03,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:55:03" (1/1) ... [2024-11-13 21:55:03,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:55:03" (1/1) ... [2024-11-13 21:55:03,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:55:03,421 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:55:03,422 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:55:03,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:55:03,423 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:55:03" (1/1) ... [2024-11-13 21:55:03,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:55:03,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:55:03,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:55:03,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:55:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 21:55:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2024-11-13 21:55:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2024-11-13 21:55:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 21:55:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 21:55:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 21:55:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:55:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:55:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 21:55:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:55:03,584 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:55:03,586 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:55:03,826 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-13 21:55:03,827 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:55:03,867 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:55:03,868 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:55:03,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:55:03 BoogieIcfgContainer [2024-11-13 21:55:03,868 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:55:03,872 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:55:03,872 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:55:03,883 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:55:03,884 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:55:03" (1/1) ... [2024-11-13 21:55:03,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:55:03,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:55:03,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:55:03,965 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:55:03,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 21:55:03,969 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:55:03,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:55:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:55:05,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:55:05,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:55:05,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 24 transitions. [2024-11-13 21:55:05,758 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-11-13 21:55:05,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 21:55:05,759 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:55:05,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:55:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:55:06,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:55:07,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:55:07,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 30 transitions. [2024-11-13 21:55:07,386 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2024-11-13 21:55:07,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 21:55:07,388 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:55:07,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:55:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:55:09,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:55:12,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:55:12,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 30 states and 46 transitions. [2024-11-13 21:55:12,122 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2024-11-13 21:55:12,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 21:55:12,122 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:55:12,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:55:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:55:12,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:55:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:55:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:55:13,168 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:55:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:55:13,672 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-13 21:55:13,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:55:13 ImpRootNode [2024-11-13 21:55:13,707 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:55:13,708 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:55:13,708 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:55:13,708 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:55:13,709 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:55:03" (3/4) ... [2024-11-13 21:55:13,710 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 21:55:13,767 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:55:13,769 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:55:13,771 INFO L158 Benchmark]: Toolchain (without parser) took 10635.09ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 93.1MB in the beginning and 70.2MB in the end (delta: 22.9MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2024-11-13 21:55:13,771 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:55:13,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.58ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 82.3MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:55:13,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.94ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 80.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:55:13,772 INFO L158 Benchmark]: Boogie Preprocessor took 40.69ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 80.1MB in the end (delta: 825.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:55:13,772 INFO L158 Benchmark]: RCFGBuilder took 446.73ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 65.4MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:55:13,772 INFO L158 Benchmark]: CodeCheck took 9835.80ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 65.1MB in the beginning and 73.2MB in the end (delta: -8.1MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2024-11-13 21:55:13,773 INFO L158 Benchmark]: Witness Printer took 61.64ms. Allocated memory is still 151.0MB. Free memory was 73.2MB in the beginning and 70.2MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:55:13,778 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: 9.8s, 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, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.8s 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, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.5s 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 - 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={15505:0}] [L59] CALL chunk(data) VAL [\old(data)={15505:0}] [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)={15505:0}, data={15505:0}, p0={-2:0}, p2={-4:0}, p3={-5:0}] [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)={15505:0}] [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)={15505:0}, data={15505:0}, p0={-2:0}, p2={-1:0}, p3={-1:0}] [L14] COND FALSE !(*p0 >= *p3) [L17] EXPR \read(*p0) [L17] (*p0)++ VAL [\old(data)={15505:0}, data={15505:0}, p0={-2:0}, p2={-1:0}, p3={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.58ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 82.3MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.94ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 80.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.69ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 80.1MB in the end (delta: 825.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 446.73ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 65.4MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 9835.80ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 65.1MB in the beginning and 73.2MB in the end (delta: -8.1MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * Witness Printer took 61.64ms. Allocated memory is still 151.0MB. Free memory was 73.2MB in the beginning and 70.2MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 21:55:13,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea12de50-8aef-4837-a366-d2372f8a3cb2/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, 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)