./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/splice-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/splice-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --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 3368805c1b8fd734b0faf0a6dc34f33a5f2dfc4632d20a018a29950383fb6a5c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:32:24,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:32:24,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:32:24,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:32:24,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:32:24,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:32:24,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:32:24,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:32:24,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:32:24,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:32:24,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:32:24,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:32:24,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:32:24,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:32:24,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:32:24,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:32:24,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:32:24,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:32:24,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:32:24,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:32:24,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:32:24,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:32:24,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:32:24,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:32:24,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:32:24,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:32:24,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:32:24,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:32:24,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:32:24,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:32:24,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:32:24,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:32:24,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:32:24,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:32:24,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:32:24,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:32:24,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:32:24,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:32:24,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:32:24,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:32:24,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:32:24,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2022-10-17 16:32:24,705 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:32:24,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:32:24,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:32:24,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:32:24,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:32:24,709 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:32:24,709 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:32:24,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:32:24,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:32:24,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:32:24,711 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 16:32:24,711 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 16:32:24,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:32:24,712 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:32:24,712 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:32:24,712 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:32:24,712 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:32:24,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:32:24,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:32:24,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:32:24,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:32:24,714 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:32:24,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:32:24,714 INFO L138 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_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3368805c1b8fd734b0faf0a6dc34f33a5f2dfc4632d20a018a29950383fb6a5c [2022-10-17 16:32:25,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:32:25,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:32:25,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:32:25,070 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:32:25,071 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:32:25,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/list-properties/splice-1.i [2022-10-17 16:32:25,148 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/data/0850d921a/55ded74c99734f08be92e6f71dab9676/FLAGb38b63d77 [2022-10-17 16:32:25,712 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:32:25,712 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/sv-benchmarks/c/list-properties/splice-1.i [2022-10-17 16:32:25,726 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/data/0850d921a/55ded74c99734f08be92e6f71dab9676/FLAGb38b63d77 [2022-10-17 16:32:25,992 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/data/0850d921a/55ded74c99734f08be92e6f71dab9676 [2022-10-17 16:32:25,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:32:25,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:32:26,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:32:26,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:32:26,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:32:26,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:32:25" (1/1) ... [2022-10-17 16:32:26,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a2d4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:26, skipping insertion in model container [2022-10-17 16:32:26,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:32:25" (1/1) ... [2022-10-17 16:32:26,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:32:26,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:32:26,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/sv-benchmarks/c/list-properties/splice-1.i[23721,23734] [2022-10-17 16:32:26,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:32:26,410 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:32:26,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/sv-benchmarks/c/list-properties/splice-1.i[23721,23734] [2022-10-17 16:32:26,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:32:26,531 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:32:26,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:26 WrapperNode [2022-10-17 16:32:26,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:32:26,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:32:26,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:32:26,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:32:26,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:26" (1/1) ... [2022-10-17 16:32:26,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:26" (1/1) ... [2022-10-17 16:32:26,625 INFO L138 Inliner]: procedures = 124, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 110 [2022-10-17 16:32:26,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:32:26,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:32:26,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:32:26,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:32:26,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:26" (1/1) ... [2022-10-17 16:32:26,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:26" (1/1) ... [2022-10-17 16:32:26,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:26" (1/1) ... [2022-10-17 16:32:26,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:26" (1/1) ... [2022-10-17 16:32:26,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:26" (1/1) ... [2022-10-17 16:32:26,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:26" (1/1) ... [2022-10-17 16:32:26,681 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:26" (1/1) ... [2022-10-17 16:32:26,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:26" (1/1) ... [2022-10-17 16:32:26,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:32:26,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:32:26,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:32:26,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:32:26,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:26" (1/1) ... [2022-10-17 16:32:26,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:32:26,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:32:26,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:32:26,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:32:26,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:32:26,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:32:26,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:32:26,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:32:26,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 16:32:26,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 16:32:26,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:32:26,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:32:26,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:32:26,953 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:32:26,955 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:32:27,400 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:32:27,520 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:32:27,527 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-17 16:32:27,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:32:27 BoogieIcfgContainer [2022-10-17 16:32:27,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:32:27,534 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:32:27,534 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:32:27,549 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:32:27,550 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:32:27" (1/1) ... [2022-10-17 16:32:27,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:32:27,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:27,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 64 states and 76 transitions. [2022-10-17 16:32:27,633 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2022-10-17 16:32:27,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:32:27,635 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:27,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:27,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:27,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:27,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 64 states and 75 transitions. [2022-10-17 16:32:27,798 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2022-10-17 16:32:27,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:32:27,798 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:27,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:27,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:28,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:28,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 67 states and 80 transitions. [2022-10-17 16:32:28,024 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 80 transitions. [2022-10-17 16:32:28,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:32:28,025 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:28,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:28,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:28,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:28,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 70 states and 85 transitions. [2022-10-17 16:32:28,455 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 85 transitions. [2022-10-17 16:32:28,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:32:28,455 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:28,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:28,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:28,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 74 states and 92 transitions. [2022-10-17 16:32:28,715 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 92 transitions. [2022-10-17 16:32:28,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:32:28,716 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:28,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:28,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:29,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:29,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 78 states and 100 transitions. [2022-10-17 16:32:29,343 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2022-10-17 16:32:29,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:32:29,344 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:29,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:29,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:29,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:29,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 80 states and 103 transitions. [2022-10-17 16:32:29,436 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 103 transitions. [2022-10-17 16:32:29,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:32:29,437 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:29,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:29,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:29,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:29,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 82 states and 106 transitions. [2022-10-17 16:32:29,509 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 106 transitions. [2022-10-17 16:32:29,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:32:29,510 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:29,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:29,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:29,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 85 states and 113 transitions. [2022-10-17 16:32:29,996 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 113 transitions. [2022-10-17 16:32:29,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:32:29,998 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:29,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:32:30,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:32:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:32:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:32:30,060 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:32:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:32:30,083 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2022-10-17 16:32:30,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:32:30 ImpRootNode [2022-10-17 16:32:30,110 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:32:30,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:32:30,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:32:30,111 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:32:30,111 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:32:27" (3/4) ... [2022-10-17 16:32:30,113 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:32:30,174 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:32:30,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:32:30,176 INFO L158 Benchmark]: Toolchain (without parser) took 4178.61ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 74.3MB in the beginning and 41.8MB in the end (delta: 32.5MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2022-10-17 16:32:30,184 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 104.9MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:32:30,185 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.56ms. Allocated memory is still 104.9MB. Free memory was 74.3MB in the beginning and 71.1MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:32:30,185 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.09ms. Allocated memory is still 104.9MB. Free memory was 71.1MB in the beginning and 69.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:32:30,186 INFO L158 Benchmark]: Boogie Preprocessor took 64.52ms. Allocated memory is still 104.9MB. Free memory was 69.0MB in the beginning and 67.4MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 16:32:30,187 INFO L158 Benchmark]: RCFGBuilder took 841.21ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 67.4MB in the beginning and 99.3MB in the end (delta: -31.9MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-10-17 16:32:30,188 INFO L158 Benchmark]: CodeCheck took 2575.73ms. Allocated memory is still 125.8MB. Free memory was 99.3MB in the beginning and 44.8MB in the end (delta: 54.4MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2022-10-17 16:32:30,202 INFO L158 Benchmark]: Witness Printer took 64.67ms. Allocated memory is still 125.8MB. Free memory was 43.9MB in the beginning and 41.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:32:30,206 INFO L339 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, 64 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 247 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 150 mSDsluCounter, 337 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 199 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 335 IncrementalHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 138 mSDtfsCounter, 335 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 379 GetRequests, 326 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 694 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 223 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 531]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] int flag = 1; [L533] List a = (List) malloc(sizeof(struct node)); [L534] COND FALSE !(a == 0) [L535] List t; [L536] List l1; [L537] List l2; [L538] List b; [L539] List u; [L540] List p = a; VAL [a={-1:0}, flag=1, p={-1:0}] [L541] COND FALSE !(__VERIFIER_nondet_int()) [L554] p->h = 3 VAL [a={-1:0}, flag=1, p={-1:0}] [L555] EXPR a->h VAL [a={-1:0}, a->h=3, flag=1, p={-1:0}] [L555] COND TRUE a->h == 3 [L555] return 0; VAL [\result=0, a={-1:0}, flag=1, p={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 104.9MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 531.56ms. Allocated memory is still 104.9MB. Free memory was 74.3MB in the beginning and 71.1MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.09ms. Allocated memory is still 104.9MB. Free memory was 71.1MB in the beginning and 69.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.52ms. Allocated memory is still 104.9MB. Free memory was 69.0MB in the beginning and 67.4MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 841.21ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 67.4MB in the beginning and 99.3MB in the end (delta: -31.9MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * CodeCheck took 2575.73ms. Allocated memory is still 125.8MB. Free memory was 99.3MB in the beginning and 44.8MB in the end (delta: 54.4MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. * Witness Printer took 64.67ms. Allocated memory is still 125.8MB. Free memory was 43.9MB in the beginning and 41.8MB 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! [2022-10-17 16:32:30,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b62935-6378-480d-96ce-f7196c28a390/bin/ukojak-92XMlrwhuB/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)