./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.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_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3 --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 b69b1cc5e7bc7b36d5ea64018b501429b633eb9552e27aac1ef773c6042e4013 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:31:50,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:31:50,459 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-25 03:31:50,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:31:50,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:31:50,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:31:50,487 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:31:50,487 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:31:50,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:31:50,487 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 03:31:50,487 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:31:50,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 03:31:50,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:31:50,488 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-25 03:31:50,488 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-25 03:31:50,488 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-25 03:31:50,488 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:31:50,488 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 03:31:50,488 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 03:31:50,488 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:31:50,488 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:31:50,489 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:31:50,489 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:31:50,489 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:31:50,489 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:31:50,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:31:50,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:31:50,489 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:31:50,489 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:31:50,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:31:50,490 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_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3 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 -> b69b1cc5e7bc7b36d5ea64018b501429b633eb9552e27aac1ef773c6042e4013 [2024-11-25 03:31:50,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:31:50,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:31:50,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:31:50,778 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:31:50,779 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:31:50,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2024-11-25 03:31:53,895 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/data/73067d9de/7f140b03e39a43fabb9e421a2b1544e5/FLAGa6b81fcb2 [2024-11-25 03:31:54,310 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:31:54,313 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2024-11-25 03:31:54,337 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/data/73067d9de/7f140b03e39a43fabb9e421a2b1544e5/FLAGa6b81fcb2 [2024-11-25 03:31:54,483 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/data/73067d9de/7f140b03e39a43fabb9e421a2b1544e5 [2024-11-25 03:31:54,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:31:54,490 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:31:54,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:31:54,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:31:54,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:31:54,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:31:54" (1/1) ... [2024-11-25 03:31:54,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7816cc99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:54, skipping insertion in model container [2024-11-25 03:31:54,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:31:54" (1/1) ... [2024-11-25 03:31:54,553 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:31:54,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:31:54,951 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:31:55,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:31:55,056 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:31:55,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:55 WrapperNode [2024-11-25 03:31:55,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:31:55,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:31:55,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:31:55,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:31:55,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:55" (1/1) ... [2024-11-25 03:31:55,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:55" (1/1) ... [2024-11-25 03:31:55,129 INFO L138 Inliner]: procedures = 164, calls = 70, calls flagged for inlining = 29, calls inlined = 4, statements flattened = 33 [2024-11-25 03:31:55,129 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:31:55,130 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:31:55,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:31:55,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:31:55,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:55" (1/1) ... [2024-11-25 03:31:55,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:55" (1/1) ... [2024-11-25 03:31:55,139 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:55" (1/1) ... [2024-11-25 03:31:55,139 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:55" (1/1) ... [2024-11-25 03:31:55,145 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:55" (1/1) ... [2024-11-25 03:31:55,146 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:55" (1/1) ... [2024-11-25 03:31:55,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:55" (1/1) ... [2024-11-25 03:31:55,148 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:55" (1/1) ... [2024-11-25 03:31:55,149 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:55" (1/1) ... [2024-11-25 03:31:55,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:31:55,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:31:55,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:31:55,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:31:55,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:55" (1/1) ... [2024-11-25 03:31:55,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:31:55,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:31:55,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:31:55,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:31:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-25 03:31:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:31:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 03:31:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-25 03:31:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:31:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:31:55,338 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:31:55,340 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:31:55,472 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-25 03:31:55,472 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:31:55,563 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:31:55,567 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 03:31:55,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:31:55 BoogieIcfgContainer [2024-11-25 03:31:55,568 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:31:55,569 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:31:55,569 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:31:55,580 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:31:55,581 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:31:55" (1/1) ... [2024-11-25 03:31:55,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:31:55,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:31:55,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 16 states and 15 transitions. [2024-11-25 03:31:55,664 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2024-11-25 03:31:55,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-25 03:31:55,667 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:31:55,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:31:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:31:55,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:31:56,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:31:56,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 15 states and 14 transitions. [2024-11-25 03:31:56,029 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2024-11-25 03:31:56,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-25 03:31:56,029 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:31:56,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:31:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:31:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:31:56,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:31:56,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 14 states and 13 transitions. [2024-11-25 03:31:56,317 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2024-11-25 03:31:56,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-25 03:31:56,317 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:31:56,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:31:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:31:56,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:31:56,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:31:56,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 13 states and 12 transitions. [2024-11-25 03:31:56,760 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2024-11-25 03:31:56,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 03:31:56,760 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:31:56,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:31:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:31:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:31:57,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:31:57,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 12 states and 11 transitions. [2024-11-25 03:31:57,014 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2024-11-25 03:31:57,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-25 03:31:57,014 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:31:57,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:31:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:31:57,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:31:57,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:31:57,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 11 states and 10 transitions. [2024-11-25 03:31:57,165 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2024-11-25 03:31:57,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 03:31:57,166 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:31:57,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:31:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:31:57,195 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:31:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:31:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:31:57,259 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:31:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:31:57,288 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-25 03:31:57,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 03:31:57 ImpRootNode [2024-11-25 03:31:57,327 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 03:31:57,327 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 03:31:57,327 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 03:31:57,328 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 03:31:57,328 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:31:55" (3/4) ... [2024-11-25 03:31:57,329 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 03:31:57,383 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 5. [2024-11-25 03:31:57,433 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 03:31:57,433 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 03:31:57,433 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 03:31:57,436 INFO L158 Benchmark]: Toolchain (without parser) took 2944.66ms. Allocated memory is still 142.6MB. Free memory was 115.5MB in the beginning and 84.8MB in the end (delta: 30.7MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2024-11-25 03:31:57,437 INFO L158 Benchmark]: CDTParser took 2.05ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 73.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:31:57,437 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.12ms. Allocated memory is still 142.6MB. Free memory was 115.3MB in the beginning and 93.7MB in the end (delta: 21.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 03:31:57,438 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.82ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 91.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:31:57,438 INFO L158 Benchmark]: Boogie Preprocessor took 21.31ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 90.8MB in the end (delta: 943.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:31:57,438 INFO L158 Benchmark]: RCFGBuilder took 416.06ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 78.1MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 03:31:57,438 INFO L158 Benchmark]: CodeCheck took 1758.00ms. Allocated memory is still 142.6MB. Free memory was 78.1MB in the beginning and 89.2MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:31:57,439 INFO L158 Benchmark]: Witness Printer took 106.15ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 84.8MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:31:57,441 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, 16 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 109 IncrementalHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 0 mSDtfsCounter, 109 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 57 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - CounterExampleResult [Line: 760]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L763] CALL entry_point() [L758] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] free(p) VAL [ldv_global_msg_list={1:0}, p={29122:0}] [L759] free(p) VAL [ldv_global_msg_list={1:0}, p={29122:0}] [L759] free(p) [L760] free(p) VAL [ldv_global_msg_list={1:0}] [L760] free(p) VAL [ldv_global_msg_list={1:0}] [L760] free(p) VAL [ldv_global_msg_list={1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.05ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 73.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.12ms. Allocated memory is still 142.6MB. Free memory was 115.3MB in the beginning and 93.7MB in the end (delta: 21.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.82ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 91.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.31ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 90.8MB in the end (delta: 943.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 416.06ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 78.1MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1758.00ms. Allocated memory is still 142.6MB. Free memory was 78.1MB in the beginning and 89.2MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 106.15ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 84.8MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-25 03:31:57,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140bebb1-8723-4f6e-9e13-d70afc6e072f/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free)