./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB --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 4b55b51cb0b3b4f908f36b1c6f95a18eadc174b8702aa08ef4d6f9775df6bb52 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 17:00:33,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:00:33,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:00:33,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:00:33,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:00:33,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:00:33,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:00:33,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:00:33,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:00:33,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:00:33,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:00:33,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:00:33,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:00:33,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:00:33,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:00:33,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:00:33,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:00:33,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:00:33,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:00:33,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:00:33,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:00:33,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:00:33,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:00:33,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:00:33,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:00:33,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:00:33,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:00:33,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:00:33,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:00:33,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:00:33,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:00:33,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:00:33,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:00:33,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:00:33,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:00:33,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:00:33,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:00:33,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:00:33,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:00:33,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:00:33,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:00:33,251 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 17:00:33,304 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:00:33,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:00:33,307 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:00:33,307 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 17:00:33,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:00:33,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:00:33,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:00:33,309 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:00:33,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:00:33,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:00:33,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:00:33,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:00:33,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:00:33,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:00:33,312 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:00:33,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:00:33,312 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:00:33,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:00:33,313 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:00:33,313 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:00:33,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:00:33,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:00:33,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:00:33,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:00:33,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:00:33,315 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:00:33,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:00:33,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:00:33,329 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_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b55b51cb0b3b4f908f36b1c6f95a18eadc174b8702aa08ef4d6f9775df6bb52 [2022-10-17 17:00:33,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:00:33,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:00:33,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:00:33,705 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:00:33,707 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:00:33,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/forester-heap/dll-sorted-1.i [2022-10-17 17:00:33,787 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/data/59fedfe81/f864da76d4484a0fb1b4402d7953ffe4/FLAG0581cfafd [2022-10-17 17:00:34,354 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:00:34,355 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/sv-benchmarks/c/forester-heap/dll-sorted-1.i [2022-10-17 17:00:34,370 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/data/59fedfe81/f864da76d4484a0fb1b4402d7953ffe4/FLAG0581cfafd [2022-10-17 17:00:34,663 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/data/59fedfe81/f864da76d4484a0fb1b4402d7953ffe4 [2022-10-17 17:00:34,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:00:34,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:00:34,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:00:34,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:00:34,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:00:34,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:00:34" (1/1) ... [2022-10-17 17:00:34,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200afcae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:34, skipping insertion in model container [2022-10-17 17:00:34,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:00:34" (1/1) ... [2022-10-17 17:00:34,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:00:34,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:00:35,231 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_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22384,22397] [2022-10-17 17:00:35,246 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_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22614,22627] [2022-10-17 17:00:35,260 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_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22989,23002] [2022-10-17 17:00:35,261 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_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23053,23066] [2022-10-17 17:00:35,265 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_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23184,23197] [2022-10-17 17:00:35,266 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_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23248,23261] [2022-10-17 17:00:35,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:00:35,291 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:00:35,346 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_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22384,22397] [2022-10-17 17:00:35,349 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_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22614,22627] [2022-10-17 17:00:35,353 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_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22989,23002] [2022-10-17 17:00:35,354 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_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23053,23066] [2022-10-17 17:00:35,356 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_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23184,23197] [2022-10-17 17:00:35,357 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_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23248,23261] [2022-10-17 17:00:35,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:00:35,408 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:00:35,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35 WrapperNode [2022-10-17 17:00:35,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:00:35,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:00:35,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:00:35,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:00:35,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,493 INFO L138 Inliner]: procedures = 119, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 194 [2022-10-17 17:00:35,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:00:35,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:00:35,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:00:35,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:00:35,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,534 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:00:35,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:00:35,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:00:35,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:00:35,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:00:35,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:00:35,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:00:35,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:00:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:00:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:00:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:00:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:00:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:00:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:00:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:00:35,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:00:35,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:00:35,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:00:35,803 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:00:35,812 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:00:36,284 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:00:36,494 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:00:36,494 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-10-17 17:00:36,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:00:36 BoogieIcfgContainer [2022-10-17 17:00:36,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:00:36,499 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:00:36,499 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:00:36,517 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:00:36,517 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:00:36" (1/1) ... [2022-10-17 17:00:36,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:00:36,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:36,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 44 states and 71 transitions. [2022-10-17 17:00:36,650 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2022-10-17 17:00:36,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 17:00:36,653 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:36,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:36,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:36,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:36,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 44 states and 67 transitions. [2022-10-17 17:00:36,983 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 67 transitions. [2022-10-17 17:00:36,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 17:00:36,983 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:36,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:37,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:37,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:37,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 46 states and 70 transitions. [2022-10-17 17:00:37,178 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 70 transitions. [2022-10-17 17:00:37,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 17:00:37,179 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:37,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:37,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 17:00:37,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:37,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 44 states and 68 transitions. [2022-10-17 17:00:37,869 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 68 transitions. [2022-10-17 17:00:37,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 17:00:37,870 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:37,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 17:00:37,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 44 states and 63 transitions. [2022-10-17 17:00:37,995 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2022-10-17 17:00:37,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 17:00:37,997 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:37,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:00:38,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:00:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:00:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:00:38,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:00:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:00:38,351 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2022-10-17 17:00:38,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 05:00:38 ImpRootNode [2022-10-17 17:00:38,408 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 17:00:38,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:00:38,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:00:38,409 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:00:38,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:00:36" (3/4) ... [2022-10-17 17:00:38,412 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 17:00:38,525 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 17:00:38,525 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:00:38,526 INFO L158 Benchmark]: Toolchain (without parser) took 3859.10ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 48.3MB in the beginning and 83.7MB in the end (delta: -35.5MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2022-10-17 17:00:38,527 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 90.2MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:00:38,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 740.45ms. Allocated memory is still 90.2MB. Free memory was 48.0MB in the beginning and 56.9MB in the end (delta: -8.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 17:00:38,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.44ms. Allocated memory is still 90.2MB. Free memory was 56.9MB in the beginning and 54.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:00:38,528 INFO L158 Benchmark]: Boogie Preprocessor took 47.68ms. Allocated memory is still 90.2MB. Free memory was 54.7MB in the beginning and 52.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:00:38,529 INFO L158 Benchmark]: RCFGBuilder took 955.77ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 52.4MB in the beginning and 75.8MB in the end (delta: -23.4MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-10-17 17:00:38,530 INFO L158 Benchmark]: CodeCheck took 1909.32ms. Allocated memory is still 109.1MB. Free memory was 75.3MB in the beginning and 41.5MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-10-17 17:00:38,542 INFO L158 Benchmark]: Witness Printer took 116.31ms. Allocated memory is still 109.1MB. Free memory was 41.5MB in the beginning and 83.7MB in the end (delta: -42.3MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-10-17 17:00:38,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 44 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 41 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 241 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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: 1038]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L997] SLL* head = malloc(sizeof(SLL)); [L998] head->next = ((void*)0) [L999] head->prev = ((void*)0) [L1000] head->data = 0 [L1002] SLL* x = head; [L1003] int marked = 0; VAL [head={-2:0}, marked=0, x={-2:0}] [L1006] COND TRUE __VERIFIER_nondet_int() || !marked [L1009] x->next = malloc(sizeof(SLL)) [L1010] EXPR x->next [L1010] x->next->prev = x [L1011] EXPR x->next [L1011] x = x->next [L1012] x->next = ((void*)0) [L1014] COND TRUE __VERIFIER_nondet_int() [L1016] marked = 1 [L1019] COND TRUE \read(marked) [L1020] x->data = 1 VAL [head={-2:0}, marked=1, x={-1:0}] [L1006] COND FALSE !(__VERIFIER_nondet_int() || !marked) [L1025] x = head VAL [head={-2:0}, marked=1, x={-2:0}] [L1027] COND FALSE !(!(((void*)0) != x)) VAL [head={-2:0}, marked=1, x={-2:0}] [L1028] marked = 0 VAL [head={-2:0}, marked=0, x={-2:0}] [L1030] EXPR x->next [L1030] x->next != ((void*)0) && x->next->data == 0 [L1030] EXPR x->next [L1030] EXPR x->next->data [L1030] x->next != ((void*)0) && x->next->data == 0 VAL [head={-2:0}, marked=0, x={-2:0}, x->next={-1:0}, x->next={-1:0}, x->next != ((void*)0) && x->next->data == 0=0, x->next->data=1] [L1030] COND FALSE !(x->next != ((void*)0) && x->next->data == 0) [L1035] EXPR x->next [L1035] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1035] x->next != ((void*)0) && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=-1, head={-2:0}, marked=0, x={-2:0}, x->next={-1:0}, x->next != ((void*)0) && __VERIFIER_nondet_int()=1] [L1035] COND TRUE x->next != ((void*)0) && __VERIFIER_nondet_int() [L1037] EXPR x->next [L1037] x = x->next [L1038] EXPR x->data VAL [head={-2:0}, marked=0, x={-1:0}, x->data=1] [L1038] COND TRUE !(x->data != 1) [L1038] reach_error() VAL [head={-2:0}, marked=0, x={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 90.2MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 740.45ms. Allocated memory is still 90.2MB. Free memory was 48.0MB in the beginning and 56.9MB in the end (delta: -8.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.44ms. Allocated memory is still 90.2MB. Free memory was 56.9MB in the beginning and 54.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.68ms. Allocated memory is still 90.2MB. Free memory was 54.7MB in the beginning and 52.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 955.77ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 52.4MB in the beginning and 75.8MB in the end (delta: -23.4MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * CodeCheck took 1909.32ms. Allocated memory is still 109.1MB. Free memory was 75.3MB in the beginning and 41.5MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 116.31ms. Allocated memory is still 109.1MB. Free memory was 41.5MB in the beginning and 83.7MB in the end (delta: -42.3MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 17:00:38,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e84317e-d633-4bb0-96a9-b4bdd2c1b518/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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