./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/simple-1.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_f326c0e6-c928-4dfe-9bec-d69f430c0113/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f326c0e6-c928-4dfe-9bec-d69f430c0113/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_f326c0e6-c928-4dfe-9bec-d69f430c0113/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f326c0e6-c928-4dfe-9bec-d69f430c0113/bin/ukojak-verify-ImItNfHLgk/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/simple-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f326c0e6-c928-4dfe-9bec-d69f430c0113/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_f326c0e6-c928-4dfe-9bec-d69f430c0113/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 7a8519f8a7c8757a31f412eb366ebcbc8dd5e899d9ff0dd6bfc4f50c36dfb89b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:04:30,334 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:04:30,421 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f326c0e6-c928-4dfe-9bec-d69f430c0113/bin/ukojak-verify-ImItNfHLgk/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-11-09 00:04:30,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:04:30,429 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:04:30,463 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:04:30,464 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:04:30,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:04:30,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:04:30,466 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:04:30,466 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:04:30,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:04:30,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:04:30,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:04:30,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:04:30,468 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 00:04:30,469 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 00:04:30,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:04:30,470 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:04:30,470 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:04:30,471 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:04:30,471 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:04:30,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:04:30,476 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:04:30,476 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:04:30,477 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:04:30,477 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:04:30,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:04:30,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:04:30,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:04:30,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:04:30,479 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:04:30,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:04:30,481 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_f326c0e6-c928-4dfe-9bec-d69f430c0113/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f326c0e6-c928-4dfe-9bec-d69f430c0113/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a8519f8a7c8757a31f412eb366ebcbc8dd5e899d9ff0dd6bfc4f50c36dfb89b [2024-11-09 00:04:30,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:04:30,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:04:30,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:04:30,791 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:04:30,791 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:04:30,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f326c0e6-c928-4dfe-9bec-d69f430c0113/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/list-properties/simple-1.i Unable to find full path for "g++" [2024-11-09 00:04:32,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:04:33,226 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:04:33,227 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f326c0e6-c928-4dfe-9bec-d69f430c0113/sv-benchmarks/c/list-properties/simple-1.i [2024-11-09 00:04:33,245 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f326c0e6-c928-4dfe-9bec-d69f430c0113/bin/ukojak-verify-ImItNfHLgk/data/fad3b0df8/35b609159d154ef4b2d3903db2bde537/FLAG8e15e2db8 [2024-11-09 00:04:33,258 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f326c0e6-c928-4dfe-9bec-d69f430c0113/bin/ukojak-verify-ImItNfHLgk/data/fad3b0df8/35b609159d154ef4b2d3903db2bde537 [2024-11-09 00:04:33,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:04:33,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:04:33,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:04:33,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:04:33,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:04:33,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:04:33" (1/1) ... [2024-11-09 00:04:33,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a959129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:04:33, skipping insertion in model container [2024-11-09 00:04:33,275 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:04:33" (1/1) ... [2024-11-09 00:04:33,328 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:04:33,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:04:33,744 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:04:33,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:04:33,825 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:04:33,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:04:33 WrapperNode [2024-11-09 00:04:33,826 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:04:33,827 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:04:33,827 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:04:33,827 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:04:33,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:04:33" (1/1) ... [2024-11-09 00:04:33,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:04:33" (1/1) ... [2024-11-09 00:04:33,865 INFO L138 Inliner]: procedures = 124, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-11-09 00:04:33,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:04:33,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:04:33,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:04:33,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:04:33,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:04:33" (1/1) ... [2024-11-09 00:04:33,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:04:33" (1/1) ... [2024-11-09 00:04:33,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:04:33" (1/1) ... [2024-11-09 00:04:33,878 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:04:33" (1/1) ... [2024-11-09 00:04:33,884 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:04:33" (1/1) ... [2024-11-09 00:04:33,887 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:04:33" (1/1) ... [2024-11-09 00:04:33,889 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:04:33" (1/1) ... [2024-11-09 00:04:33,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:04:33" (1/1) ... [2024-11-09 00:04:33,892 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:04:33,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:04:33,894 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:04:33,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:04:33,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:04:33" (1/1) ... [2024-11-09 00:04:33,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:04:33,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f326c0e6-c928-4dfe-9bec-d69f430c0113/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:04:33,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f326c0e6-c928-4dfe-9bec-d69f430c0113/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:04:33,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f326c0e6-c928-4dfe-9bec-d69f430c0113/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:04:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:04:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 00:04:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 00:04:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:04:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 00:04:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 00:04:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:04:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:04:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:04:34,073 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:04:34,076 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:04:34,239 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-09 00:04:34,239 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:04:34,270 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:04:34,270 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:04:34,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:04:34 BoogieIcfgContainer [2024-11-09 00:04:34,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:04:34,272 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:04:34,272 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:04:34,284 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:04:34,285 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:04:34" (1/1) ... [2024-11-09 00:04:34,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:04:34,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:04:34,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2024-11-09 00:04:34,355 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2024-11-09 00:04:34,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 00:04:34,358 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:04:34,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:04:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:04:34,668 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 00:04:34,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:04:34,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2024-11-09 00:04:34,715 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2024-11-09 00:04:34,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:04:34,716 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:04:34,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:04:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:04:34,919 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 00:04:34,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:04:34,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2024-11-09 00:04:34,989 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-11-09 00:04:34,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:04:34,990 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:04:34,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:04:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:04:35,123 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 00:04:35,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:04:35,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-11-09 00:04:35,156 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-11-09 00:04:35,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 00:04:35,157 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:04:35,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:04:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:04:35,461 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 00:04:35,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:04:35,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2024-11-09 00:04:35,803 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2024-11-09 00:04:35,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 00:04:35,807 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:04:35,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:04:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:04:35,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:04:35,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:04:35,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2024-11-09 00:04:35,928 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2024-11-09 00:04:35,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 00:04:35,929 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:04:35,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:04:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:04:35,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:04:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:04:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:04:36,035 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:04:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:04:36,077 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-09 00:04:36,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:04:36 ImpRootNode [2024-11-09 00:04:36,109 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:04:36,109 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:04:36,109 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:04:36,109 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:04:36,110 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:04:34" (3/4) ... [2024-11-09 00:04:36,111 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 00:04:36,161 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f326c0e6-c928-4dfe-9bec-d69f430c0113/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:04:36,161 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:04:36,162 INFO L158 Benchmark]: Toolchain (without parser) took 2899.46ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 96.9MB in the beginning and 76.9MB in the end (delta: 20.0MB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. [2024-11-09 00:04:36,165 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:04:36,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 562.85ms. Allocated memory is still 134.2MB. Free memory was 96.5MB in the beginning and 77.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 00:04:36,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.84ms. Allocated memory is still 134.2MB. Free memory was 77.2MB in the beginning and 75.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:04:36,166 INFO L158 Benchmark]: Boogie Preprocessor took 26.22ms. Allocated memory is still 134.2MB. Free memory was 75.6MB in the beginning and 74.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:04:36,167 INFO L158 Benchmark]: RCFGBuilder took 377.69ms. Allocated memory is still 134.2MB. Free memory was 73.9MB in the beginning and 60.5MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 00:04:36,167 INFO L158 Benchmark]: CodeCheck took 1836.98ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 60.5MB in the beginning and 78.9MB in the end (delta: -18.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2024-11-09 00:04:36,172 INFO L158 Benchmark]: Witness Printer took 51.87ms. Allocated memory is still 182.5MB. Free memory was 78.9MB in the beginning and 76.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:04:36,174 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, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 156 IncrementalHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 80 mSDtfsCounter, 156 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 338 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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: 531]: 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] a->h = 2 VAL [a={12831:0}, p={12831:0}] [L537] COND FALSE !(__VERIFIER_nondet_int()) [L544] p->h = 2 [L545] p->n = 0 [L546] p = a VAL [p={12831:0}] [L547] COND FALSE !(p!=0) VAL [p={12831:0}] [L547] COND TRUE p!=0 [L548] EXPR p->h VAL [p={12831:0}] [L548] COND FALSE !(p->h != 2) [L551] EXPR p->n [L551] p = p->n [L547] COND TRUE p!=0 [L553] return 0; VAL [\result=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 562.85ms. Allocated memory is still 134.2MB. Free memory was 96.5MB in the beginning and 77.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.84ms. Allocated memory is still 134.2MB. Free memory was 77.2MB in the beginning and 75.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.22ms. Allocated memory is still 134.2MB. Free memory was 75.6MB in the beginning and 74.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 377.69ms. Allocated memory is still 134.2MB. Free memory was 73.9MB in the beginning and 60.5MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 1836.98ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 60.5MB in the beginning and 78.9MB in the end (delta: -18.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Witness Printer took 51.87ms. Allocated memory is still 182.5MB. Free memory was 78.9MB in the beginning and 76.9MB 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! [2024-11-09 00:04:36,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f326c0e6-c928-4dfe-9bec-d69f430c0113/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, 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)