./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-regression/volatile_alias.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/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_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-regression/volatile_alias.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b --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 a988b6de948d75b5e0137d9fcbd7a2fd2df2ed717cdabff89a8624df62a9e556 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:47:17,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:47:17,619 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-12-06 03:47:17,624 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:47:17,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:47:17,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:47:17,645 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:47:17,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:47:17,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:47:17,645 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:47:17,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:47:17,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:47:17,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:47:17,645 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 03:47:17,646 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 03:47:17,646 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-06 03:47:17,646 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:47:17,646 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 03:47:17,646 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:47:17,646 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:47:17,646 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:47:17,646 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:47:17,646 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:47:17,646 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:47:17,647 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:47:17,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:47:17,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:47:17,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:47:17,647 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:47:17,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:47:17,647 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_9e0a0429-d573-402c-b717-cb8b2ffceadc/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 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 -> a988b6de948d75b5e0137d9fcbd7a2fd2df2ed717cdabff89a8624df62a9e556 [2024-12-06 03:47:17,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:47:17,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:47:17,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:47:17,905 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:47:17,906 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:47:17,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/ldv-regression/volatile_alias.i [2024-12-06 03:47:20,590 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b/data/16019b390/37623c9a882b4d4ea8c512e6348ea197/FLAG5f4ad670d [2024-12-06 03:47:20,788 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:47:20,789 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/sv-benchmarks/c/ldv-regression/volatile_alias.i [2024-12-06 03:47:20,794 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b/data/16019b390/37623c9a882b4d4ea8c512e6348ea197/FLAG5f4ad670d [2024-12-06 03:47:20,807 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b/data/16019b390/37623c9a882b4d4ea8c512e6348ea197 [2024-12-06 03:47:20,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:47:20,810 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:47:20,811 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:47:20,811 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:47:20,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:47:20,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:47:20" (1/1) ... [2024-12-06 03:47:20,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703e24c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:20, skipping insertion in model container [2024-12-06 03:47:20,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:47:20" (1/1) ... [2024-12-06 03:47:20,825 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:47:20,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:47:20,965 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:47:20,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:47:20,991 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:47:20,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:20 WrapperNode [2024-12-06 03:47:20,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:47:20,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:47:20,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:47:20,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:47:20,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:20" (1/1) ... [2024-12-06 03:47:21,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:20" (1/1) ... [2024-12-06 03:47:21,020 INFO L138 Inliner]: procedures = 12, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2024-12-06 03:47:21,020 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:47:21,021 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:47:21,021 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:47:21,021 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:47:21,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:20" (1/1) ... [2024-12-06 03:47:21,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:20" (1/1) ... [2024-12-06 03:47:21,028 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:20" (1/1) ... [2024-12-06 03:47:21,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:20" (1/1) ... [2024-12-06 03:47:21,031 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:20" (1/1) ... [2024-12-06 03:47:21,032 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:20" (1/1) ... [2024-12-06 03:47:21,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:20" (1/1) ... [2024-12-06 03:47:21,034 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:20" (1/1) ... [2024-12-06 03:47:21,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:20" (1/1) ... [2024-12-06 03:47:21,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:47:21,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:47:21,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:47:21,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:47:21,038 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:47:20" (1/1) ... [2024-12-06 03:47:21,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:47:21,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:47:21,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:47:21,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:47:21,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 03:47:21,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:47:21,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:47:21,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:47:21,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 03:47:21,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:47:21,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 03:47:21,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 03:47:21,147 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:47:21,148 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:47:21,250 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-12-06 03:47:21,250 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:47:21,268 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:47:21,269 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 03:47:21,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:47:21 BoogieIcfgContainer [2024-12-06 03:47:21,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:47:21,269 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:47:21,269 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:47:21,278 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:47:21,278 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:47:21" (1/1) ... [2024-12-06 03:47:21,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:47:21,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:21,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-12-06 03:47:21,325 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-12-06 03:47:21,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-12-06 03:47:21,327 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:21,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:21,481 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 03:47:21,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:21,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-12-06 03:47:21,513 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-12-06 03:47:21,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-12-06 03:47:21,513 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:21,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:21,608 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 03:47:21,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:21,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-12-06 03:47:21,699 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-12-06 03:47:21,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 03:47:21,699 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:21,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:21,721 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 03:47:21,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:21,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2024-12-06 03:47:21,736 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2024-12-06 03:47:21,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 03:47:21,736 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:21,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:21,784 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 03:47:21,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:21,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-12-06 03:47:21,810 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-12-06 03:47:21,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 03:47:21,810 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:21,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:21,909 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 03:47:22,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:22,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-12-06 03:47:22,096 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-12-06 03:47:22,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 03:47:22,096 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:22,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:22,220 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 03:47:22,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:22,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-12-06 03:47:22,488 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-12-06 03:47:22,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 03:47:22,489 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:22,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:22,659 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 03:47:23,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:23,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2024-12-06 03:47:23,184 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2024-12-06 03:47:23,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:47:23,185 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:47:23,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:47:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:47:23,298 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 03:47:23,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:47:23,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2024-12-06 03:47:23,963 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2024-12-06 03:47:23,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 03:47:23,964 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2024-12-06 03:47:23,969 INFO L726 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2024-12-06 03:47:24,003 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-12-06 03:47:24,003 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 03:47:24,003 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-12-06 03:47:24,003 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-12-06 03:47:24,004 INFO L77 FloydHoareUtils]: At program point L13(line 13) the Hoare annotation is: (and (= |ULTIMATE.start_main_~#a~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0#1.base|) |ULTIMATE.start_main_~#a~0#1.offset|) 4) (= |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_~p~0#1.base|) 4) (= |ULTIMATE.start_main_~p~0#1.offset| 0)) [2024-12-06 03:47:24,004 INFO L77 FloydHoareUtils]: At program point L13-1(line 13) the Hoare annotation is: (and (= |ULTIMATE.start_main_~#a~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |ULTIMATE.start_main_#t~mem4#1| 4) (= |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_~p~0#1.base|) 4) (= |ULTIMATE.start_main_~p~0#1.offset| 0)) [2024-12-06 03:47:24,004 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 03:47:24,004 INFO L77 FloydHoareUtils]: At program point main_returnLabel#1(lines 8 18) the Hoare annotation is: (= |ULTIMATE.start_main_old_#valid#1| |#valid|) [2024-12-06 03:47:24,004 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK(lines 8 18) no Hoare annotation was computed. [2024-12-06 03:47:24,004 INFO L75 FloydHoareUtils]: For program point L3(line 3) no Hoare annotation was computed. [2024-12-06 03:47:24,004 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-12-06 03:47:24,005 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-12-06 03:47:24,005 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE(line -1) no Hoare annotation was computed. [2024-12-06 03:47:24,005 INFO L77 FloydHoareUtils]: At program point L14(line 14) the Hoare annotation is: (and (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 0) (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#a~0#1.base| 0)) (= (select |#length| |ULTIMATE.start_main_~p~0#1.base|) 4) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~p~0#1.base|) 1)) [2024-12-06 03:47:24,005 INFO L77 FloydHoareUtils]: At program point L14-1(lines 14 16) the Hoare annotation is: (and (= |ULTIMATE.start_main_#t~mem5#1| 0) (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#a~0#1.base| 0))) [2024-12-06 03:47:24,005 INFO L77 FloydHoareUtils]: At program point L14-3(lines 14 16) the Hoare annotation is: (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#a~0#1.base| 0)) [2024-12-06 03:47:24,005 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK(line 3) no Hoare annotation was computed. [2024-12-06 03:47:24,011 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: main_old_#valid#1 [2024-12-06 03:47:24,012 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-12-06 03:47:24,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:47:24 ImpRootNode [2024-12-06 03:47:24,014 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:47:24,015 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:47:24,015 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:47:24,015 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:47:24,015 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:47:21" (3/4) ... [2024-12-06 03:47:24,017 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 03:47:24,023 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-12-06 03:47:24,024 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-06 03:47:24,024 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 03:47:24,024 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 03:47:24,090 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 03:47:24,090 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 03:47:24,090 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:47:24,091 INFO L158 Benchmark]: Toolchain (without parser) took 3280.95ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 90.2MB in the end (delta: 27.6MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2024-12-06 03:47:24,091 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:47:24,091 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.34ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 107.4MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:47:24,092 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.70ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 106.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:47:24,092 INFO L158 Benchmark]: Boogie Preprocessor took 15.80ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.6MB in the end (delta: 761.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:47:24,092 INFO L158 Benchmark]: RCFGBuilder took 231.82ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 94.4MB in the end (delta: 11.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:47:24,092 INFO L158 Benchmark]: CodeCheck took 2744.55ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 93.9MB in the end (delta: 314.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:47:24,093 INFO L158 Benchmark]: Witness Printer took 75.72ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 90.2MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:47:24,094 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: 2.7s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 300 IncrementalHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 2 mSDtfsCounter, 300 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 154 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1880 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 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, ConComCheckerStatistics: 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: 8]: 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 0.36ms. Allocated memory is still 142.6MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.34ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 107.4MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.70ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 106.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.80ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.6MB in the end (delta: 761.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 231.82ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 94.4MB in the end (delta: 11.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2744.55ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 93.9MB in the end (delta: 314.6kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 75.72ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 90.2MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: main_old_#valid#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid RESULT: Ultimate proved your program to be correct! [2024-12-06 03:47:24,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a0429-d573-402c-b717-cb8b2ffceadc/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 Result: TRUE