./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-regression/alias_of_return.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/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_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-regression/alias_of_return.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ba0bcfe856788bd0caa6dc699e0af14f5977926f33f52c273bc3aa3b61532a90 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:21:48,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:21:48,225 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-13 21:21:48,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:21:48,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:21:48,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:21:48,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:21:48,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:21:48,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:21:48,266 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 21:21:48,266 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:21:48,266 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 21:21:48,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:21:48,266 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 21:21:48,266 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 21:21:48,266 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 21:21:48,267 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:21:48,267 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:21:48,267 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:21:48,267 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 21:21:48,267 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:21:48,267 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:21:48,267 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:21:48,267 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:21:48,268 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:21:48,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:21:48,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:21:48,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:21:48,268 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:21:48,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:21:48,268 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_f70caab8-0d4d-46b1-848e-c333c051fc4e/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba0bcfe856788bd0caa6dc699e0af14f5977926f33f52c273bc3aa3b61532a90 [2024-11-13 21:21:48,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:21:48,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:21:48,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:21:48,625 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:21:48,626 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:21:48,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/ldv-regression/alias_of_return.i Unable to find full path for "g++" [2024-11-13 21:21:50,524 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:21:50,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:21:50,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/sv-benchmarks/c/ldv-regression/alias_of_return.i [2024-11-13 21:21:50,800 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm/data/c4c0ecdfc/834483337b404b1eb05d3b601abe75d8/FLAGeba779e04 [2024-11-13 21:21:50,821 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm/data/c4c0ecdfc/834483337b404b1eb05d3b601abe75d8 [2024-11-13 21:21:50,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:21:50,826 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:21:50,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:21:50,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:21:50,833 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:21:50,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:21:50" (1/1) ... [2024-11-13 21:21:50,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eef7fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:21:50, skipping insertion in model container [2024-11-13 21:21:50,836 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:21:50" (1/1) ... [2024-11-13 21:21:50,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:21:51,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:21:51,082 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:21:51,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:21:51,110 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:21:51,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:21:51 WrapperNode [2024-11-13 21:21:51,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:21:51,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:21:51,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:21:51,112 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:21:51,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:21:51" (1/1) ... [2024-11-13 21:21:51,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:21:51" (1/1) ... [2024-11-13 21:21:51,144 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2024-11-13 21:21:51,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:21:51,145 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:21:51,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:21:51,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:21:51,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:21:51" (1/1) ... [2024-11-13 21:21:51,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:21:51" (1/1) ... [2024-11-13 21:21:51,155 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:21:51" (1/1) ... [2024-11-13 21:21:51,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:21:51" (1/1) ... [2024-11-13 21:21:51,160 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:21:51" (1/1) ... [2024-11-13 21:21:51,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:21:51" (1/1) ... [2024-11-13 21:21:51,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:21:51" (1/1) ... [2024-11-13 21:21:51,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:21:51" (1/1) ... [2024-11-13 21:21:51,165 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:21:51,166 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:21:51,166 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:21:51,167 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:21:51,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:21:51" (1/1) ... [2024-11-13 21:21:51,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:21:51,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:21:51,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:21:51,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:21:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:21:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:21:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 21:21:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 21:21:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:21:51,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:21:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 21:21:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:21:51,354 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:21:51,357 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:21:51,573 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-13 21:21:51,577 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:21:51,645 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:21:51,649 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:21:51,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:21:51 BoogieIcfgContainer [2024-11-13 21:21:51,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:21:51,651 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:21:51,651 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:21:51,665 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:21:51,665 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:21:51" (1/1) ... [2024-11-13 21:21:51,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:21:51,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:21:51,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-11-13 21:21:51,752 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-11-13 21:21:51,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-13 21:21:51,755 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:21:51,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:21:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:21:52,029 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 21:21:52,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:21:52,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-11-13 21:21:52,101 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-11-13 21:21:52,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-13 21:21:52,101 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:21:52,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:21:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:21:52,271 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 21:21:52,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:21:52,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-13 21:21:52,459 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-13 21:21:52,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 21:21:52,459 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:21:52,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:21:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:21:52,566 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 21:21:52,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:21:52,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2024-11-13 21:21:52,626 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2024-11-13 21:21:52,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 21:21:52,627 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:21:52,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:21:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:21:52,850 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 21:21:53,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:21:53,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-13 21:21:53,301 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-13 21:21:53,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 21:21:53,301 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:21:53,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:21:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:21:53,362 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 21:21:53,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:21:53,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-13 21:21:53,522 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-13 21:21:53,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 21:21:53,522 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:21:53,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:21:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:21:53,605 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 21:21:53,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:21:53,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-11-13 21:21:53,868 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-11-13 21:21:53,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 21:21:53,868 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:21:53,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:21:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:21:54,130 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 21:21:54,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:21:54,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2024-11-13 21:21:54,798 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2024-11-13 21:21:54,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 21:21:54,798 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:21:54,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:21:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:21:55,034 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 21:21:56,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:21:56,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2024-11-13 21:21:56,068 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2024-11-13 21:21:56,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 21:21:56,069 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2024-11-13 21:21:56,085 INFO L729 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2024-11-13 21:21:56,140 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-11-13 21:21:56,140 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 21:21:56,141 INFO L77 FloydHoareUtils]: At program point L31(line 31) the Hoare annotation is: (and (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#a~0#1.base| 0)) (= |ULTIMATE.start_main_#t~mem5#1| 2)) [2024-11-13 21:21:56,141 INFO L77 FloydHoareUtils]: At program point L29(line 29) the Hoare annotation is: (and (= |ULTIMATE.start_main_~#a~0#1.base| |ULTIMATE.start_main_~q~0#1.base|) (<= 4 (select |#length| |ULTIMATE.start_main_~q~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#a~0#1.base|) 1) (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#a~0#1.base| 0)) (= |ULTIMATE.start_main_~#a~0#1.offset| |ULTIMATE.start_main_~q~0#1.offset|) (= |ULTIMATE.start_main_~q~0#1.offset| 0)) [2024-11-13 21:21:56,141 INFO L77 FloydHoareUtils]: At program point L31-2(line 31) the Hoare annotation is: (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#a~0#1.base| 0)) [2024-11-13 21:21:56,141 INFO L77 FloydHoareUtils]: At program point L29-1(line 29) the Hoare annotation is: (and (<= 4 (select |#length| |ULTIMATE.start_main_~#a~0#1.base|)) (= 2 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0#1.base|) |ULTIMATE.start_main_~#a~0#1.offset|)) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#a~0#1.base|) 1) (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#a~0#1.base| 0))) [2024-11-13 21:21:56,142 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-11-13 21:21:56,142 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-11-13 21:21:56,142 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 21:21:56,142 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK(lines 18 32) no Hoare annotation was computed. [2024-11-13 21:21:56,142 INFO L75 FloydHoareUtils]: For program point L3(line 3) no Hoare annotation was computed. [2024-11-13 21:21:56,142 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-11-13 21:21:56,142 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-11-13 21:21:56,143 INFO L77 FloydHoareUtils]: At program point L22(line 22) the Hoare annotation is: (and (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#a~0#1.base|) 1) (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#a~0#1.base| 0)) (= (select |#length| |ULTIMATE.start_main_~#a~0#1.base|) 4)) [2024-11-13 21:21:56,143 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-11-13 21:21:56,143 INFO L77 FloydHoareUtils]: At program point L18(lines 18 32) the Hoare annotation is: (= |ULTIMATE.start_main_old_#valid#1| |#valid|) [2024-11-13 21:21:56,143 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK(line 3) no Hoare annotation was computed. [2024-11-13 21:21:56,161 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-13 21:21:56,165 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 21:21:56,165 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 21:21:56,166 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: main_old_#valid#1 [2024-11-13 21:21:56,166 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression [2024-11-13 21:21:56,166 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 21:21:56,166 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 21:21:56,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:21:56 ImpRootNode [2024-11-13 21:21:56,168 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:21:56,169 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:21:56,170 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:21:56,170 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:21:56,171 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:21:51" (3/4) ... [2024-11-13 21:21:56,174 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 21:21:56,182 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-13 21:21:56,182 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-13 21:21:56,183 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 21:21:56,183 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 21:21:56,274 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:21:56,275 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm/witness.yml [2024-11-13 21:21:56,275 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:21:56,276 INFO L158 Benchmark]: Toolchain (without parser) took 5450.15ms. Allocated memory was 427.8MB in the beginning and 142.6MB in the end (delta: -285.2MB). Free memory was 404.7MB in the beginning and 44.5MB in the end (delta: 360.2MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2024-11-13 21:21:56,277 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:21:56,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.43ms. Allocated memory was 427.8MB in the beginning and 142.6MB in the end (delta: -285.2MB). Free memory was 404.7MB in the beginning and 109.1MB in the end (delta: 295.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:21:56,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.39ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 107.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:21:56,278 INFO L158 Benchmark]: Boogie Preprocessor took 20.15ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 107.3MB in the end (delta: 525.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:21:56,279 INFO L158 Benchmark]: RCFGBuilder took 483.53ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 95.3MB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:21:56,279 INFO L158 Benchmark]: CodeCheck took 4517.39ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 49.1MB in the end (delta: 46.2MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2024-11-13 21:21:56,279 INFO L158 Benchmark]: Witness Printer took 105.87ms. Allocated memory is still 142.6MB. Free memory was 49.1MB in the beginning and 44.5MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:21:56,282 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, 17 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 121 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 295 IncrementalHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 121 mSolverCounterUnsat, 2 mSDtfsCounter, 295 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1242 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 122 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.43ms. Allocated memory was 427.8MB in the beginning and 142.6MB in the end (delta: -285.2MB). Free memory was 404.7MB in the beginning and 109.1MB in the end (delta: 295.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.39ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 107.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.15ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 107.3MB in the end (delta: 525.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 483.53ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 95.3MB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 4517.39ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 49.1MB in the end (delta: 46.2MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * Witness Printer took 105.87ms. Allocated memory is still 142.6MB. Free memory was 49.1MB in the beginning and 44.5MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: main_old_#valid#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] RESULT: Ultimate proved your program to be correct! [2024-11-13 21:21:56,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f70caab8-0d4d-46b1-848e-c333c051fc4e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE