./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-properties/list-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/list-properties/list-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI --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 a135e953d64ed0fec81eb2a1e42f4031e3e387fc71d5a5cd2177772a202dc706 ....................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:27:08,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:27:08,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:27:08,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:27:08,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:27:08,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:27:08,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:27:08,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:27:08,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:27:08,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:27:08,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:27:08,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:27:08,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:27:08,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:27:08,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:27:08,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:27:08,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:27:08,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:27:08,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:27:08,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:27:08,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:27:08,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:27:08,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:27:08,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:27:08,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:27:08,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:27:08,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:27:08,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:27:08,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:27:08,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:27:08,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:27:08,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:27:08,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:27:08,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:27:08,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:27:08,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:27:08,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:27:08,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:27:08,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:27:08,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:27:08,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:27:08,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:27:08,320 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:27:08,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:27:08,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:27:08,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:27:08,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:27:08,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:27:08,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:27:08,323 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:27:08,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:27:08,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:27:08,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:27:08,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:27:08,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:27:08,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:27:08,331 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:27:08,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:27:08,331 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:27:08,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:27:08,332 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:27:08,332 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:27:08,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:27:08,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:27:08,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:27:08,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:27:08,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:27:08,334 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:27:08,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:27:08,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:27:08,335 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_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a135e953d64ed0fec81eb2a1e42f4031e3e387fc71d5a5cd2177772a202dc706 [2021-10-29 03:27:08,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:27:08,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:27:08,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:27:08,637 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:27:08,638 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:27:08,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/list-properties/list-2.i [2021-10-29 03:27:08,714 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/data/4cc5db0c7/5989b136118f480884e97ec9cca11631/FLAG453be1698 [2021-10-29 03:27:09,176 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:27:09,177 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/sv-benchmarks/c/list-properties/list-2.i [2021-10-29 03:27:09,195 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/data/4cc5db0c7/5989b136118f480884e97ec9cca11631/FLAG453be1698 [2021-10-29 03:27:09,508 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/data/4cc5db0c7/5989b136118f480884e97ec9cca11631 [2021-10-29 03:27:09,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:27:09,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:27:09,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:27:09,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:27:09,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:27:09,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:27:09" (1/1) ... [2021-10-29 03:27:09,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3277c1be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:09, skipping insertion in model container [2021-10-29 03:27:09,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:27:09" (1/1) ... [2021-10-29 03:27:09,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:27:09,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:27:09,927 WARN L228 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_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/sv-benchmarks/c/list-properties/list-2.i[23408,23421] [2021-10-29 03:27:09,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:27:09,942 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:27:09,997 WARN L228 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_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/sv-benchmarks/c/list-properties/list-2.i[23408,23421] [2021-10-29 03:27:09,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:27:10,027 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:27:10,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:10 WrapperNode [2021-10-29 03:27:10,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:27:10,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:27:10,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:27:10,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:27:10,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:10" (1/1) ... [2021-10-29 03:27:10,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:10" (1/1) ... [2021-10-29 03:27:10,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:27:10,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:27:10,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:27:10,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:27:10,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:10" (1/1) ... [2021-10-29 03:27:10,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:10" (1/1) ... [2021-10-29 03:27:10,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:10" (1/1) ... [2021-10-29 03:27:10,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:10" (1/1) ... [2021-10-29 03:27:10,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:10" (1/1) ... [2021-10-29 03:27:10,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:10" (1/1) ... [2021-10-29 03:27:10,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:10" (1/1) ... [2021-10-29 03:27:10,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:27:10,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:27:10,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:27:10,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:27:10,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:10" (1/1) ... [2021-10-29 03:27:10,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:27:10,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:27:10,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:27:10,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:27:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-10-29 03:27:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-10-29 03:27:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 03:27:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 03:27:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 03:27:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-29 03:27:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:27:10,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-29 03:27:10,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:27:10,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:27:10,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:27:10,311 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-10-29 03:27:10,453 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:27:10,453 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-29 03:27:10,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:27:10 BoogieIcfgContainer [2021-10-29 03:27:10,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:27:10,456 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:27:10,457 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:27:10,467 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:27:10,467 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:27:10" (1/1) ... [2021-10-29 03:27:10,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:27:10,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:10,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2021-10-29 03:27:10,509 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2021-10-29 03:27:10,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 03:27:10,511 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:10,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:10,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:10,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:10,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2021-10-29 03:27:10,661 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2021-10-29 03:27:10,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 03:27:10,662 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:10,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:10,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:10,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:10,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 38 states and 54 transitions. [2021-10-29 03:27:10,927 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2021-10-29 03:27:10,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 03:27:10,928 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:10,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:11,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:11,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:11,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 38 states and 52 transitions. [2021-10-29 03:27:11,122 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2021-10-29 03:27:11,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 03:27:11,123 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:11,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:11,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:11,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:11,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 38 states and 50 transitions. [2021-10-29 03:27:11,321 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2021-10-29 03:27:11,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 03:27:11,323 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:11,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:11,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:12,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:12,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 49 states and 70 transitions. [2021-10-29 03:27:12,205 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2021-10-29 03:27:12,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 03:27:12,208 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:12,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:12,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:13,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:13,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 60 states and 88 transitions. [2021-10-29 03:27:13,273 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 88 transitions. [2021-10-29 03:27:13,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 03:27:13,274 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:13,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:13,674 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:14,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:14,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 71 states and 110 transitions. [2021-10-29 03:27:14,854 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 110 transitions. [2021-10-29 03:27:14,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 03:27:14,855 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:14,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:14,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:16,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:16,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 82 states and 130 transitions. [2021-10-29 03:27:16,036 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 130 transitions. [2021-10-29 03:27:16,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 03:27:16,037 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:16,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:16,408 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:16,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:16,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 84 states and 138 transitions. [2021-10-29 03:27:16,751 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 138 transitions. [2021-10-29 03:27:16,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 03:27:16,752 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:16,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:17,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:17,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 86 states and 146 transitions. [2021-10-29 03:27:17,561 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 146 transitions. [2021-10-29 03:27:17,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 03:27:17,562 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:17,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:17,893 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:18,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:18,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 88 states and 154 transitions. [2021-10-29 03:27:18,069 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 154 transitions. [2021-10-29 03:27:18,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 03:27:18,070 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:18,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:18,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:21,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:21,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 97 states and 179 transitions. [2021-10-29 03:27:21,278 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 179 transitions. [2021-10-29 03:27:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 03:27:21,279 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:21,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:27:21,294 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:27:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:27:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:27:21,383 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:27:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:27:21,466 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2021-10-29 03:27:21,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:27:21 ImpRootNode [2021-10-29 03:27:21,524 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:27:21,524 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:27:21,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:27:21,525 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:27:21,525 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:27:10" (3/4) ... [2021-10-29 03:27:21,527 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:27:21,584 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:27:21,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:27:21,586 INFO L168 Benchmark]: Toolchain (without parser) took 12073.00 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 60.6 MB in the beginning and 53.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:21,601 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 94.4 MB. Free memory is still 52.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:27:21,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 515.12 ms. Allocated memory is still 94.4 MB. Free memory was 60.3 MB in the beginning and 63.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:21,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.90 ms. Allocated memory is still 94.4 MB. Free memory was 63.9 MB in the beginning and 62.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:21,604 INFO L168 Benchmark]: Boogie Preprocessor took 30.94 ms. Allocated memory is still 94.4 MB. Free memory was 62.2 MB in the beginning and 60.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:21,604 INFO L168 Benchmark]: RCFGBuilder took 350.84 ms. Allocated memory is still 94.4 MB. Free memory was 60.5 MB in the beginning and 47.4 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:21,605 INFO L168 Benchmark]: CodeCheck took 11067.56 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 47.4 MB in the beginning and 55.3 MB in the end (delta: -7.9 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:21,606 INFO L168 Benchmark]: Witness Printer took 59.58 ms. Allocated memory is still 142.6 MB. Free memory was 55.3 MB in the beginning and 53.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:21,611 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 2 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 67584 SDtfs, 40592 SDslu, 34980 SDs, 0 SdLazy, 116364 SolverSat, 23660 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2051 GetRequests, 1803 SyntacticMatches, 84 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12861 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 2631 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 4/46 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: 557]: a call to reach_error is reachable a call to reach_error is reachable 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] COND TRUE __VERIFIER_nondet_int() [L537] p->h = 1 [L538] t = (List) malloc(sizeof(struct node)) [L539] COND FALSE !(t == 0) [L540] p->n = t [L541] EXPR p->n [L541] p = p->n [L536] COND FALSE !(__VERIFIER_nondet_int()) [L543] COND TRUE __VERIFIER_nondet_int() [L544] p->h = 2 [L545] t = (List) malloc(sizeof(struct node)) [L546] COND FALSE !(t == 0) [L547] p->n = t [L548] EXPR p->n [L548] p = p->n [L543] COND FALSE !(__VERIFIER_nondet_int()) [L550] p->h = 3 [L551] p = a [L552] EXPR p->h [L552] COND FALSE !(p->h == 2) [L554] EXPR p->h [L554] COND TRUE p->h == 1 [L555] EXPR p->n [L555] p = p->n [L554] EXPR p->h [L554] COND FALSE !(p->h == 1) [L556] EXPR p->h [L556] COND TRUE p->h != 3 [L557] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 94.4 MB. Free memory is still 52.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 515.12 ms. Allocated memory is still 94.4 MB. Free memory was 60.3 MB in the beginning and 63.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.90 ms. Allocated memory is still 94.4 MB. Free memory was 63.9 MB in the beginning and 62.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.94 ms. Allocated memory is still 94.4 MB. Free memory was 62.2 MB in the beginning and 60.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 350.84 ms. Allocated memory is still 94.4 MB. Free memory was 60.5 MB in the beginning and 47.4 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 11067.56 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 47.4 MB in the beginning and 55.3 MB in the end (delta: -7.9 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. * Witness Printer took 59.58 ms. Allocated memory is still 142.6 MB. Free memory was 55.3 MB in the beginning and 53.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 03:27:21,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0b8c1f-e5fe-4054-9411-ee8289b5d9d7/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...