./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext-properties/simple-ext.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext-properties/simple-ext.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY --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 8dfe6e301265e265404ce5be2c9f54235040b69e ............................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 04:24:30,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 04:24:30,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 04:24:30,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 04:24:30,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 04:24:30,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 04:24:30,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 04:24:30,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 04:24:30,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 04:24:30,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 04:24:30,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 04:24:30,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 04:24:30,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 04:24:30,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 04:24:30,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 04:24:30,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 04:24:30,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 04:24:30,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 04:24:30,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 04:24:30,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 04:24:30,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 04:24:30,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 04:24:30,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 04:24:30,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 04:24:30,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 04:24:30,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 04:24:30,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 04:24:30,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 04:24:30,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 04:24:30,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 04:24:30,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 04:24:30,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 04:24:30,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 04:24:30,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 04:24:30,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 04:24:30,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 04:24:30,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 04:24:30,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 04:24:30,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 04:24:30,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 04:24:30,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 04:24:30,273 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-13 04:24:30,319 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 04:24:30,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 04:24:30,320 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 04:24:30,320 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 04:24:30,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 04:24:30,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 04:24:30,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 04:24:30,322 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 04:24:30,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 04:24:30,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 04:24:30,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 04:24:30,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 04:24:30,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 04:24:30,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 04:24:30,330 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 04:24:30,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 04:24:30,330 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 04:24:30,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 04:24:30,331 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 04:24:30,331 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 04:24:30,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 04:24:30,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:24:30,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 04:24:30,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 04:24:30,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 04:24:30,332 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 04:24:30,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 04:24:30,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 04:24:30,333 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_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dfe6e301265e265404ce5be2c9f54235040b69e [2021-10-13 04:24:30,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 04:24:30,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 04:24:30,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 04:24:30,656 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 04:24:30,657 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 04:24:30,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/list-ext-properties/simple-ext.i [2021-10-13 04:24:30,712 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/data/f14a2a2b6/4a254da5b9634c639674146fa91963a0/FLAGc11b82938 [2021-10-13 04:24:31,317 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 04:24:31,318 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/sv-benchmarks/c/list-ext-properties/simple-ext.i [2021-10-13 04:24:31,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/data/f14a2a2b6/4a254da5b9634c639674146fa91963a0/FLAGc11b82938 [2021-10-13 04:24:31,573 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/data/f14a2a2b6/4a254da5b9634c639674146fa91963a0 [2021-10-13 04:24:31,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 04:24:31,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 04:24:31,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 04:24:31,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 04:24:31,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 04:24:31,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:24:31" (1/1) ... [2021-10-13 04:24:31,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40b8599d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:24:31, skipping insertion in model container [2021-10-13 04:24:31,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:24:31" (1/1) ... [2021-10-13 04:24:31,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 04:24:31,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 04:24:32,014 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_71d2e203-cebb-4a0f-8125-91e75f2d3548/sv-benchmarks/c/list-ext-properties/simple-ext.i[23272,23285] [2021-10-13 04:24:32,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:24:32,034 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 04:24:32,095 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_71d2e203-cebb-4a0f-8125-91e75f2d3548/sv-benchmarks/c/list-ext-properties/simple-ext.i[23272,23285] [2021-10-13 04:24:32,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:24:32,139 INFO L208 MainTranslator]: Completed translation [2021-10-13 04:24:32,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:24:32 WrapperNode [2021-10-13 04:24:32,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 04:24:32,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 04:24:32,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 04:24:32,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 04:24:32,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:24:32" (1/1) ... [2021-10-13 04:24:32,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:24:32" (1/1) ... [2021-10-13 04:24:32,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 04:24:32,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 04:24:32,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 04:24:32,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 04:24:32,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:24:32" (1/1) ... [2021-10-13 04:24:32,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:24:32" (1/1) ... [2021-10-13 04:24:32,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:24:32" (1/1) ... [2021-10-13 04:24:32,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:24:32" (1/1) ... [2021-10-13 04:24:32,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:24:32" (1/1) ... [2021-10-13 04:24:32,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:24:32" (1/1) ... [2021-10-13 04:24:32,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:24:32" (1/1) ... [2021-10-13 04:24:32,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 04:24:32,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 04:24:32,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 04:24:32,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 04:24:32,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:24:32" (1/1) ... [2021-10-13 04:24:32,251 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:24:32,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/z3 [2021-10-13 04:24:32,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 04:24:32,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 04:24:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-10-13 04:24:32,316 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-10-13 04:24:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 04:24:32,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 04:24:32,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 04:24:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 04:24:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 04:24:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 04:24:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 04:24:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 04:24:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 04:24:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 04:24:32,462 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-10-13 04:24:32,766 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 04:24:32,766 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 04:24:32,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:24:32 BoogieIcfgContainer [2021-10-13 04:24:32,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 04:24:32,772 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 04:24:32,772 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 04:24:32,783 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 04:24:32,783 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:24:32" (1/1) ... [2021-10-13 04:24:32,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 04:24:32,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:24:32,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2021-10-13 04:24:32,843 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2021-10-13 04:24:32,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 04:24:32,845 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:24:32,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:24:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:24:33,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:24:33,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:24:33,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2021-10-13 04:24:33,035 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-10-13 04:24:33,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 04:24:33,036 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:24:33,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:24:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:24:33,110 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:24:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:24:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:24:33,244 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:24:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:24:33,290 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2021-10-13 04:24:33,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 04:24:33 ImpRootNode [2021-10-13 04:24:33,325 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 04:24:33,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 04:24:33,326 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 04:24:33,326 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 04:24:33,327 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:24:32" (3/4) ... [2021-10-13 04:24:33,330 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 04:24:33,376 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 04:24:33,376 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 04:24:33,378 INFO L168 Benchmark]: Toolchain (without parser) took 1800.19 ms. Allocated memory is still 138.4 MB. Free memory was 104.1 MB in the beginning and 107.1 MB in the end (delta: -3.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:24:33,379 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 96.5 MB. Free memory is still 51.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:24:33,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.28 ms. Allocated memory is still 138.4 MB. Free memory was 104.1 MB in the beginning and 104.0 MB in the end (delta: 99.6 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 04:24:33,380 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.70 ms. Allocated memory is still 138.4 MB. Free memory was 104.0 MB in the beginning and 102.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:24:33,381 INFO L168 Benchmark]: Boogie Preprocessor took 28.22 ms. Allocated memory is still 138.4 MB. Free memory was 102.0 MB in the beginning and 100.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:24:33,381 INFO L168 Benchmark]: RCFGBuilder took 533.01 ms. Allocated memory is still 138.4 MB. Free memory was 100.5 MB in the beginning and 87.0 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 04:24:33,382 INFO L168 Benchmark]: CodeCheck took 553.73 ms. Allocated memory is still 138.4 MB. Free memory was 86.8 MB in the beginning and 109.1 MB in the end (delta: -22.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:24:33,383 INFO L168 Benchmark]: Witness Printer took 50.52 ms. Allocated memory is still 138.4 MB. Free memory was 109.1 MB in the beginning and 107.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:24:33,386 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, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 477.8ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 23.3ms SsaConstructionTime, 54.7ms SatisfiabilityAnalysisTime, 63.5ms InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 551]: 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] int i = 0; [L537] i < 30 && __VERIFIER_nondet_int() [L537] i < 30 && __VERIFIER_nondet_int() [L537] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L545] p->h = i [L546] p->n = 0 [L547] p = a [L548] i = 0 [L549] COND TRUE p!=0 [L550] EXPR p->h [L550] COND TRUE p->h != 1 [L551] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 96.5 MB. Free memory is still 51.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 561.28 ms. Allocated memory is still 138.4 MB. Free memory was 104.1 MB in the beginning and 104.0 MB in the end (delta: 99.6 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.70 ms. Allocated memory is still 138.4 MB. Free memory was 104.0 MB in the beginning and 102.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.22 ms. Allocated memory is still 138.4 MB. Free memory was 102.0 MB in the beginning and 100.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 533.01 ms. Allocated memory is still 138.4 MB. Free memory was 100.5 MB in the beginning and 87.0 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 553.73 ms. Allocated memory is still 138.4 MB. Free memory was 86.8 MB in the beginning and 109.1 MB in the end (delta: -22.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 50.52 ms. Allocated memory is still 138.4 MB. Free memory was 109.1 MB in the beginning and 107.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 04:24:33,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d2e203-cebb-4a0f-8125-91e75f2d3548/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...