./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 a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk --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 0.2.5-dev-a016563 [2024-11-08 22:24:09,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:24:09,917 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-08 22:24:09,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:24:09,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:24:09,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:24:09,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:24:09,993 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:24:09,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:24:09,994 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:24:09,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:24:09,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:24:09,996 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:24:09,998 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 22:24:09,999 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 22:24:09,999 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 22:24:10,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:24:10,004 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:24:10,004 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:24:10,005 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:24:10,005 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:24:10,006 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:24:10,023 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:24:10,023 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:24:10,024 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:24:10,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:24:10,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:24:10,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:24:10,025 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:24:10,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:24:10,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b69b1cc5e7bc7b36d5ea64018b501429b633eb9552e27aac1ef773c6042e4013 [2024-11-08 22:24:10,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:24:10,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:24:10,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:24:10,375 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:24:10,377 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:24:10,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i Unable to find full path for "g++" [2024-11-08 22:24:12,429 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:24:12,776 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:24:12,777 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2024-11-08 22:24:12,793 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/data/97e7b1ab2/48578d9bdcbf48fc9cac4e26fe59c8d1/FLAG0805b4a8a [2024-11-08 22:24:12,813 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/data/97e7b1ab2/48578d9bdcbf48fc9cac4e26fe59c8d1 [2024-11-08 22:24:12,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:24:12,819 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:24:12,821 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:24:12,821 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:24:12,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:24:12,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:24:12" (1/1) ... [2024-11-08 22:24:12,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70460f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:12, skipping insertion in model container [2024-11-08 22:24:12,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:24:12" (1/1) ... [2024-11-08 22:24:12,895 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:24:13,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:24:13,518 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:24:13,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:24:13,703 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:24:13,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:13 WrapperNode [2024-11-08 22:24:13,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:24:13,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:24:13,706 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:24:13,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:24:13,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:13" (1/1) ... [2024-11-08 22:24:13,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:13" (1/1) ... [2024-11-08 22:24:13,793 INFO L138 Inliner]: procedures = 164, calls = 70, calls flagged for inlining = 29, calls inlined = 4, statements flattened = 33 [2024-11-08 22:24:13,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:24:13,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:24:13,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:24:13,799 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:24:13,811 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:13" (1/1) ... [2024-11-08 22:24:13,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:13" (1/1) ... [2024-11-08 22:24:13,818 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:13" (1/1) ... [2024-11-08 22:24:13,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:13" (1/1) ... [2024-11-08 22:24:13,824 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:13" (1/1) ... [2024-11-08 22:24:13,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:13" (1/1) ... [2024-11-08 22:24:13,831 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:13" (1/1) ... [2024-11-08 22:24:13,835 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:13" (1/1) ... [2024-11-08 22:24:13,837 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:24:13,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:24:13,843 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:24:13,843 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:24:13,844 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:24:13" (1/1) ... [2024-11-08 22:24:13,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:24:13,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:24:13,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:24:13,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:24:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 22:24:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:24:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 22:24:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-08 22:24:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:24:13,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:24:14,064 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:24:14,067 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:24:14,201 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-08 22:24:14,202 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:24:14,288 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:24:14,288 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:24:14,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:24:14 BoogieIcfgContainer [2024-11-08 22:24:14,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:24:14,294 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:24:14,294 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:24:14,309 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:24:14,310 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:24:14" (1/1) ... [2024-11-08 22:24:14,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:24:14,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:24:14,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 16 states and 15 transitions. [2024-11-08 22:24:14,404 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2024-11-08 22:24:14,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-08 22:24:14,407 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:24:14,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:24:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:24:14,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:24:14,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:24:14,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 15 states and 14 transitions. [2024-11-08 22:24:14,747 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2024-11-08 22:24:14,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-08 22:24:14,747 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:24:14,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:24:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:24:14,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:24:15,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:24:15,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 14 states and 13 transitions. [2024-11-08 22:24:15,060 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2024-11-08 22:24:15,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 22:24:15,061 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:24:15,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:24:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:24:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:24:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:24:15,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 13 states and 12 transitions. [2024-11-08 22:24:15,549 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2024-11-08 22:24:15,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 22:24:15,550 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:24:15,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:24:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:24:15,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:24:15,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:24:15,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 12 states and 11 transitions. [2024-11-08 22:24:15,794 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2024-11-08 22:24:15,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 22:24:15,795 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:24:15,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:24:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:24:15,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:24:15,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:24:15,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 11 states and 10 transitions. [2024-11-08 22:24:15,964 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2024-11-08 22:24:15,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:24:15,965 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:24:15,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:24:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:24:15,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:24:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:24:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:24:16,047 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:24:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:24:16,074 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-08 22:24:16,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:24:16 ImpRootNode [2024-11-08 22:24:16,121 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:24:16,122 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:24:16,122 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:24:16,123 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:24:16,124 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:24:14" (3/4) ... [2024-11-08 22:24:16,125 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 22:24:16,172 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 22:24:16,172 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:24:16,173 INFO L158 Benchmark]: Toolchain (without parser) took 3354.86ms. Allocated memory is still 148.9MB. Free memory was 116.0MB in the beginning and 79.0MB in the end (delta: 37.0MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2024-11-08 22:24:16,174 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 148.9MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:24:16,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 883.71ms. Allocated memory is still 148.9MB. Free memory was 116.0MB in the beginning and 91.4MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 22:24:16,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.62ms. Allocated memory is still 148.9MB. Free memory was 91.4MB in the beginning and 89.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:24:16,176 INFO L158 Benchmark]: Boogie Preprocessor took 39.10ms. Allocated memory is still 148.9MB. Free memory was 89.2MB in the beginning and 87.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:24:16,176 INFO L158 Benchmark]: RCFGBuilder took 446.78ms. Allocated memory is still 148.9MB. Free memory was 87.8MB in the beginning and 74.0MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 22:24:16,177 INFO L158 Benchmark]: CodeCheck took 1827.51ms. Allocated memory is still 148.9MB. Free memory was 74.0MB in the beginning and 81.0MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:24:16,178 INFO L158 Benchmark]: Witness Printer took 50.61ms. Allocated memory is still 148.9MB. Free memory was 81.0MB in the beginning and 79.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:24:16,181 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, 0.7s 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 - 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 0.45ms. Allocated memory is still 148.9MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 883.71ms. Allocated memory is still 148.9MB. Free memory was 116.0MB in the beginning and 91.4MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.62ms. Allocated memory is still 148.9MB. Free memory was 91.4MB in the beginning and 89.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.10ms. Allocated memory is still 148.9MB. Free memory was 89.2MB in the beginning and 87.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 446.78ms. Allocated memory is still 148.9MB. Free memory was 87.8MB in the beginning and 74.0MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1827.51ms. Allocated memory is still 148.9MB. Free memory was 74.0MB in the beginning and 81.0MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 50.61ms. Allocated memory is still 148.9MB. Free memory was 81.0MB in the beginning and 79.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-08 22:24:16,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52be1b2c-655f-437c-ab19-c6997de63fb8/bin/ukojak-verify-ImItNfHLgk/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)