./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:23:41,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:23:41,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:23:41,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:23:41,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:23:41,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:23:41,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:23:41,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:23:41,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:23:41,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:23:41,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:23:41,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:23:41,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:23:41,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:23:41,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:23:41,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:23:41,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:23:41,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:23:41,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:23:41,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:23:41,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:23:41,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:23:41,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:23:41,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:23:41,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:23:41,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:23:41,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:23:41,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:23:41,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:23:41,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:23:41,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:23:41,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:23:41,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:23:41,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:23:41,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:23:41,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:23:41,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:23:41,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:23:41,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:23:41,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:23:41,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:23:41,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:23:41,826 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:23:41,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:23:41,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:23:41,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:23:41,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:23:41,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:23:41,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:23:41,834 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:23:41,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:23:41,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:23:41,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:23:41,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:23:41,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:23:41,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:23:41,840 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:23:41,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:23:41,841 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:23:41,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:23:41,841 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:23:41,842 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:23:41,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:23:41,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:23:41,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:23:41,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:23:41,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:23:41,844 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:23:41,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:23:41,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:23:41,844 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_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf [2021-11-23 00:23:42,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:23:42,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:23:42,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:23:42,177 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:23:42,178 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:23:42,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2021-11-23 00:23:42,273 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/data/a0b96d7d6/2171b8f1a02f4ad4afec8a5907f26761/FLAG0e619c0b0 [2021-11-23 00:23:42,903 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:23:42,909 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2021-11-23 00:23:42,937 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/data/a0b96d7d6/2171b8f1a02f4ad4afec8a5907f26761/FLAG0e619c0b0 [2021-11-23 00:23:43,153 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/data/a0b96d7d6/2171b8f1a02f4ad4afec8a5907f26761 [2021-11-23 00:23:43,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:23:43,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:23:43,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:23:43,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:23:43,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:23:43,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:23:43" (1/1) ... [2021-11-23 00:23:43,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b2bf9e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:43, skipping insertion in model container [2021-11-23 00:23:43,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:23:43" (1/1) ... [2021-11-23 00:23:43,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:23:43,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:23:43,714 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_bd92a574-4cfc-435a-a3cc-0efcdb427884/sv-benchmarks/c/heap-manipulation/merge_sort-1.i[22632,22645] [2021-11-23 00:23:43,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:23:43,807 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:23:43,860 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_bd92a574-4cfc-435a-a3cc-0efcdb427884/sv-benchmarks/c/heap-manipulation/merge_sort-1.i[22632,22645] [2021-11-23 00:23:43,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:23:43,928 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:23:43,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:43 WrapperNode [2021-11-23 00:23:43,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:23:43,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:23:43,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:23:43,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:23:43,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:43" (1/1) ... [2021-11-23 00:23:43,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:43" (1/1) ... [2021-11-23 00:23:43,997 INFO L137 Inliner]: procedures = 125, calls = 83, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 285 [2021-11-23 00:23:43,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:23:43,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:23:43,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:23:43,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:23:44,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:43" (1/1) ... [2021-11-23 00:23:44,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:43" (1/1) ... [2021-11-23 00:23:44,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:43" (1/1) ... [2021-11-23 00:23:44,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:43" (1/1) ... [2021-11-23 00:23:44,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:43" (1/1) ... [2021-11-23 00:23:44,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:43" (1/1) ... [2021-11-23 00:23:44,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:43" (1/1) ... [2021-11-23 00:23:44,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:23:44,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:23:44,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:23:44,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:23:44,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:43" (1/1) ... [2021-11-23 00:23:44,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:23:44,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:23:44,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:23:44,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:23:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 00:23:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2021-11-23 00:23:44,206 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2021-11-23 00:23:44,208 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-11-23 00:23:44,208 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-11-23 00:23:44,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 00:23:44,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 00:23:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:23:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 00:23:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 00:23:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 00:23:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 00:23:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:23:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:23:44,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:23:44,430 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:23:44,432 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:23:44,887 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:23:44,989 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:23:44,990 INFO L301 CfgBuilder]: Removed 33 assume(true) statements. [2021-11-23 00:23:44,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:44 BoogieIcfgContainer [2021-11-23 00:23:44,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:23:44,996 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:23:44,996 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:23:45,009 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:23:45,009 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:44" (1/1) ... [2021-11-23 00:23:45,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:23:45,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:45,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 80 states and 146 transitions. [2021-11-23 00:23:45,097 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 146 transitions. [2021-11-23 00:23:45,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 00:23:45,100 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:45,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:45,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:23:45,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:45,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 79 states and 129 transitions. [2021-11-23 00:23:45,318 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 129 transitions. [2021-11-23 00:23:45,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:23:45,318 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:45,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:45,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:23:45,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:45,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 82 states and 132 transitions. [2021-11-23 00:23:45,478 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 132 transitions. [2021-11-23 00:23:45,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:23:45,479 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:45,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:45,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:23:45,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 81 states and 130 transitions. [2021-11-23 00:23:45,718 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 130 transitions. [2021-11-23 00:23:45,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 00:23:45,718 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:45,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:45,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:23:45,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:45,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 81 states and 127 transitions. [2021-11-23 00:23:45,821 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 127 transitions. [2021-11-23 00:23:45,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:23:45,822 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:45,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:45,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:23:45,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:45,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 84 states and 130 transitions. [2021-11-23 00:23:45,968 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 130 transitions. [2021-11-23 00:23:45,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:23:45,968 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:45,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:23:46,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:46,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 85 states and 131 transitions. [2021-11-23 00:23:46,069 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 131 transitions. [2021-11-23 00:23:46,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 00:23:46,070 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:46,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:46,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:23:46,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:46,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 88 states and 132 transitions. [2021-11-23 00:23:46,578 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 132 transitions. [2021-11-23 00:23:46,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 00:23:46,579 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:46,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:46,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:23:46,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:46,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 91 states and 133 transitions. [2021-11-23 00:23:46,768 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 133 transitions. [2021-11-23 00:23:46,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 00:23:46,769 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:46,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:46,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:23:47,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:47,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 100 states and 143 transitions. [2021-11-23 00:23:47,976 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2021-11-23 00:23:47,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 00:23:47,977 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:47,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:48,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:23:48,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:48,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 107 states and 149 transitions. [2021-11-23 00:23:48,597 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 149 transitions. [2021-11-23 00:23:48,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 00:23:48,598 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:48,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:48,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:23:49,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:49,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 114 states and 155 transitions. [2021-11-23 00:23:49,279 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 155 transitions. [2021-11-23 00:23:49,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 00:23:49,280 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:49,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:23:49,299 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:23:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:23:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:23:49,371 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:23:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:23:49,423 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2021-11-23 00:23:49,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:23:49 ImpRootNode [2021-11-23 00:23:49,458 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:23:49,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:23:49,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:23:49,459 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:23:49,460 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:44" (3/4) ... [2021-11-23 00:23:49,462 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:23:49,513 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:23:49,514 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:23:49,515 INFO L158 Benchmark]: Toolchain (without parser) took 6352.87ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 76.4MB in the beginning and 99.1MB in the end (delta: -22.7MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2021-11-23 00:23:49,516 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory was 87.2MB in the beginning and 87.2MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:23:49,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 762.75ms. Allocated memory is still 113.2MB. Free memory was 76.2MB in the beginning and 79.8MB in the end (delta: -3.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:23:49,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.16ms. Allocated memory is still 113.2MB. Free memory was 79.8MB in the beginning and 77.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:23:49,518 INFO L158 Benchmark]: Boogie Preprocessor took 101.71ms. Allocated memory is still 113.2MB. Free memory was 77.2MB in the beginning and 74.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 00:23:49,519 INFO L158 Benchmark]: RCFGBuilder took 893.89ms. Allocated memory is still 113.2MB. Free memory was 74.6MB in the beginning and 46.2MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-23 00:23:49,520 INFO L158 Benchmark]: CodeCheck took 4462.47ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 46.2MB in the beginning and 102.3MB in the end (delta: -56.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:23:49,521 INFO L158 Benchmark]: Witness Printer took 55.00ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 99.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:23:49,526 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 3 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 949 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 260 mSDsluCounter, 731 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 308 mSDsCounter, 210 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 644 IncrementalHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 210 mSolverCounterUnsat, 423 mSDtfsCounter, 644 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1422 GetRequests, 1337 SyntacticMatches, 5 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1888 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 715 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 16/18 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: 565]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L638] struct list *data = ((void *)0); VAL [data={0:0}] [L639] COND TRUE __VERIFIER_nondet_int() [L640] struct node *node = malloc(sizeof *node); [L641] COND FALSE !(!node) [L643] node->next = node [L644] node->value = __VERIFIER_nondet_int() [L645] struct list *item = malloc(sizeof *item); [L646] COND FALSE !(!item) [L648] item->slist = node [L649] item->next = data [L650] data = item VAL [data={-1:0}, item={-1:0}, node={-2:0}] [L639] COND FALSE !(__VERIFIER_nondet_int()) [L652] COND FALSE !(!data) [L654] CALL inspect_before(data) [L615] COND FALSE !(!(shape)) VAL [shape={-1:0}, shape={-1:0}] [L616] shape->next VAL [shape={-1:0}, shape={-1:0}, shape->next={0:0}] [L616] COND FALSE !(shape->next) [L622] COND FALSE !(!(shape)) VAL [shape={-1:0}, shape={-1:0}] [L623] EXPR shape->next VAL [shape={-1:0}, shape={-1:0}, shape->next={0:0}] [L623] COND FALSE !(!(shape->next == ((void *)0))) [L624] EXPR shape->slist VAL [shape={-1:0}, shape={-1:0}, shape->slist={-2:0}] [L624] COND FALSE !(!(shape->slist)) [L625] EXPR shape->slist [L625] EXPR shape->slist->next VAL [shape={-1:0}, shape={-1:0}, shape->slist={-2:0}, shape->slist->next={-2:0}] [L625] COND TRUE !(shape->slist->next == ((void *)0)) [L625] CALL fail() [L565] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory was 87.2MB in the beginning and 87.2MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 762.75ms. Allocated memory is still 113.2MB. Free memory was 76.2MB in the beginning and 79.8MB in the end (delta: -3.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.16ms. Allocated memory is still 113.2MB. Free memory was 79.8MB in the beginning and 77.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.71ms. Allocated memory is still 113.2MB. Free memory was 77.2MB in the beginning and 74.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 893.89ms. Allocated memory is still 113.2MB. Free memory was 74.6MB in the beginning and 46.2MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * CodeCheck took 4462.47ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 46.2MB in the beginning and 102.3MB in the end (delta: -56.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 55.00ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 99.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 00:23:49,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd92a574-4cfc-435a-a3cc-0efcdb427884/bin/ukojak-LBtLqBUTdQ/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