./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-ext-properties/simple-ext.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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_e059a45e-55ac-4bbd-b175-2735e56ce68f/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/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_e059a45e-55ac-4bbd-b175-2735e56ce68f/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/bin/ukojak-verify-ImItNfHLgk/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/simple-ext.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/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-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:23:12,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:23:12,993 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-11-09 00:23:13,004 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:23:13,004 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:23:13,037 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:23:13,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:23:13,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:23:13,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:23:13,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:23:13,043 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:23:13,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:23:13,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:23:13,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:23:13,044 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:23:13,044 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 00:23:13,044 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 00:23:13,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:23:13,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:23:13,048 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:23:13,048 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:23:13,052 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:23:13,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:23:13,052 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:23:13,052 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:23:13,053 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:23:13,053 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:23:13,053 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:23:13,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:23:13,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:23:13,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:23:13,054 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:23:13,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:23:13,064 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_e059a45e-55ac-4bbd-b175-2735e56ce68f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 [2024-11-09 00:23:13,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:23:13,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:23:13,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:23:13,388 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:23:13,389 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:23:13,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/list-ext-properties/simple-ext.i Unable to find full path for "g++" [2024-11-09 00:23:15,367 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:23:15,581 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:23:15,581 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/sv-benchmarks/c/list-ext-properties/simple-ext.i [2024-11-09 00:23:15,593 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/bin/ukojak-verify-ImItNfHLgk/data/29757daf9/0b0f7aa26ea44221b4f30e149de8810f/FLAG5bcae61d6 [2024-11-09 00:23:15,608 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/bin/ukojak-verify-ImItNfHLgk/data/29757daf9/0b0f7aa26ea44221b4f30e149de8810f [2024-11-09 00:23:15,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:23:15,612 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:23:15,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:23:15,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:23:15,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:23:15,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:23:15" (1/1) ... [2024-11-09 00:23:15,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66097b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:15, skipping insertion in model container [2024-11-09 00:23:15,620 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:23:15" (1/1) ... [2024-11-09 00:23:15,678 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:23:16,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:23:16,055 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:23:16,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:23:16,145 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:23:16,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:16 WrapperNode [2024-11-09 00:23:16,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:23:16,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:23:16,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:23:16,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:23:16,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:16" (1/1) ... [2024-11-09 00:23:16,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:16" (1/1) ... [2024-11-09 00:23:16,194 INFO L138 Inliner]: procedures = 124, calls = 20, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 81 [2024-11-09 00:23:16,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:23:16,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:23:16,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:23:16,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:23:16,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:16" (1/1) ... [2024-11-09 00:23:16,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:16" (1/1) ... [2024-11-09 00:23:16,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:16" (1/1) ... [2024-11-09 00:23:16,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:16" (1/1) ... [2024-11-09 00:23:16,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:16" (1/1) ... [2024-11-09 00:23:16,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:16" (1/1) ... [2024-11-09 00:23:16,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:16" (1/1) ... [2024-11-09 00:23:16,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:16" (1/1) ... [2024-11-09 00:23:16,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:23:16,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:23:16,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:23:16,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:23:16,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:16" (1/1) ... [2024-11-09 00:23:16,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:23:16,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:23:16,272 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:23:16,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:23:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:23:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 00:23:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 00:23:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:23:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 00:23:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 00:23:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:23:16,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:23:16,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:23:16,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:23:16,432 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:23:16,434 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:23:16,610 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-09 00:23:16,611 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:23:16,657 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:23:16,658 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:23:16,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:23:16 BoogieIcfgContainer [2024-11-09 00:23:16,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:23:16,659 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:23:16,659 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:23:16,669 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:23:16,670 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:23:16" (1/1) ... [2024-11-09 00:23:16,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:23:16,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:16,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 32 transitions. [2024-11-09 00:23:16,757 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2024-11-09 00:23:16,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:23:16,760 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:16,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:16,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:23:17,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:17,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2024-11-09 00:23:17,023 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-11-09 00:23:17,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 00:23:17,023 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:17,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:17,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:23:17,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:17,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2024-11-09 00:23:17,330 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2024-11-09 00:23:17,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 00:23:17,330 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:17,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:23:17,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:23:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:23:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:23:17,434 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:23:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:23:17,462 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-11-09 00:23:17,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:23:17 ImpRootNode [2024-11-09 00:23:17,490 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:23:17,491 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:23:17,491 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:23:17,492 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:23:17,492 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:23:16" (3/4) ... [2024-11-09 00:23:17,493 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 00:23:17,533 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:23:17,533 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:23:17,534 INFO L158 Benchmark]: Toolchain (without parser) took 1921.92ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 92.2MB in the beginning and 128.0MB in the end (delta: -35.7MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-11-09 00:23:17,535 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:23:17,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.14ms. Allocated memory is still 134.2MB. Free memory was 91.8MB in the beginning and 72.6MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 00:23:17,536 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.97ms. Allocated memory is still 134.2MB. Free memory was 72.6MB in the beginning and 70.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:23:17,536 INFO L158 Benchmark]: Boogie Preprocessor took 40.93ms. Allocated memory is still 134.2MB. Free memory was 70.7MB in the beginning and 69.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:23:17,537 INFO L158 Benchmark]: RCFGBuilder took 421.25ms. Allocated memory is still 134.2MB. Free memory was 69.2MB in the beginning and 53.8MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 00:23:17,538 INFO L158 Benchmark]: CodeCheck took 831.75ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 53.8MB in the beginning and 130.0MB in the end (delta: -76.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:23:17,538 INFO L158 Benchmark]: Witness Printer took 41.89ms. Allocated memory is still 188.7MB. Free memory was 130.0MB in the beginning and 128.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:23:17,541 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 32 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 12]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) [L534] List t; [L535] List p = a; [L536] int i = 0; VAL [a={3024:0}, i=0, p={3024:0}] [L537] i < 30 && __VERIFIER_nondet_int() [L537] i < 30 && __VERIFIER_nondet_int() VAL [a={3024:0}, i=0, p={3024:0}] [L537] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L545] p->h = i [L546] p->n = 0 [L547] p = a [L548] i = 0 VAL [a={3024:0}, i=0, p={3024:0}] [L549] COND FALSE !(p!=0) VAL [a={3024:0}, i=0, p={3024:0}] [L549] COND TRUE p!=0 [L550] EXPR p->h VAL [a={3024:0}, i=0, p={3024:0}] [L550] COND TRUE p->h != 1 [L551] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "simple-ext.c", 3, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.14ms. Allocated memory is still 134.2MB. Free memory was 91.8MB in the beginning and 72.6MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.97ms. Allocated memory is still 134.2MB. Free memory was 72.6MB in the beginning and 70.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.93ms. Allocated memory is still 134.2MB. Free memory was 70.7MB in the beginning and 69.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 421.25ms. Allocated memory is still 134.2MB. Free memory was 69.2MB in the beginning and 53.8MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 831.75ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 53.8MB in the beginning and 130.0MB in the end (delta: -76.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.89ms. Allocated memory is still 188.7MB. Free memory was 130.0MB in the beginning and 128.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 00:23:17,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e059a45e-55ac-4bbd-b175-2735e56ce68f/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-memcleanup)