./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-circular-2.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_3e057c47-aff2-4356-8586-2b1bab28d71c/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/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_3e057c47-aff2-4356-8586-2b1bab28d71c/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-circular-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/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_3e057c47-aff2-4356-8586-2b1bab28d71c/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 f91abcd8d9f4c4a9bb166bca3090e9f421fd2afed3c0226bce3d2e7c0b6ce95e --- 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 17:06:32,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:06:32,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:06:32,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:06:32,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:06:32,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:06:32,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:06:32,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:06:32,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:06:32,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:06:32,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:06:32,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:06:32,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:06:32,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:06:32,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:06:32,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:06:32,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:06:32,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:06:32,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:06:32,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:06:32,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:06:32,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:06:32,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:06:32,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:06:32,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:06:32,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:06:32,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:06:32,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:06:32,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:06:32,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:06:32,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:06:32,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:06:32,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:06:32,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:06:32,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:06:32,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:06:32,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:06:32,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:06:32,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:06:32,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:06:32,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:06:32,994 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 17:06:33,036 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:06:33,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:06:33,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:06:33,038 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 17:06:33,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:06:33,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:06:33,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:06:33,039 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:06:33,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:06:33,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:06:33,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:06:33,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:06:33,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:06:33,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:06:33,041 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:06:33,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:06:33,042 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:06:33,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:06:33,043 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:06:33,043 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:06:33,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:06:33,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:06:33,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:06:33,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:06:33,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:06:33,045 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:06:33,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:06:33,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:06:33,046 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_3e057c47-aff2-4356-8586-2b1bab28d71c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f91abcd8d9f4c4a9bb166bca3090e9f421fd2afed3c0226bce3d2e7c0b6ce95e [2022-10-17 17:06:33,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:06:33,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:06:33,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:06:33,319 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:06:33,320 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:06:33,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/forester-heap/sll-circular-2.i [2022-10-17 17:06:33,389 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/bin/ukojak-92XMlrwhuB/data/cf76cd006/630ad3d3e0aa41b0904f1525f4f2d4eb/FLAG12155db5b [2022-10-17 17:06:33,937 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:06:33,938 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/sv-benchmarks/c/forester-heap/sll-circular-2.i [2022-10-17 17:06:33,950 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/bin/ukojak-92XMlrwhuB/data/cf76cd006/630ad3d3e0aa41b0904f1525f4f2d4eb/FLAG12155db5b [2022-10-17 17:06:34,224 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/bin/ukojak-92XMlrwhuB/data/cf76cd006/630ad3d3e0aa41b0904f1525f4f2d4eb [2022-10-17 17:06:34,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:06:34,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:06:34,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:06:34,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:06:34,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:06:34,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:06:34" (1/1) ... [2022-10-17 17:06:34,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d16128f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:34, skipping insertion in model container [2022-10-17 17:06:34,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:06:34" (1/1) ... [2022-10-17 17:06:34,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:06:34,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:06:34,586 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_3e057c47-aff2-4356-8586-2b1bab28d71c/sv-benchmarks/c/forester-heap/sll-circular-2.i[22324,22337] [2022-10-17 17:06:34,591 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_3e057c47-aff2-4356-8586-2b1bab28d71c/sv-benchmarks/c/forester-heap/sll-circular-2.i[22430,22443] [2022-10-17 17:06:34,593 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_3e057c47-aff2-4356-8586-2b1bab28d71c/sv-benchmarks/c/forester-heap/sll-circular-2.i[22554,22567] [2022-10-17 17:06:34,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:06:34,614 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:06:34,673 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_3e057c47-aff2-4356-8586-2b1bab28d71c/sv-benchmarks/c/forester-heap/sll-circular-2.i[22324,22337] [2022-10-17 17:06:34,685 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_3e057c47-aff2-4356-8586-2b1bab28d71c/sv-benchmarks/c/forester-heap/sll-circular-2.i[22430,22443] [2022-10-17 17:06:34,687 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_3e057c47-aff2-4356-8586-2b1bab28d71c/sv-benchmarks/c/forester-heap/sll-circular-2.i[22554,22567] [2022-10-17 17:06:34,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:06:34,725 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:06:34,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:34 WrapperNode [2022-10-17 17:06:34,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:06:34,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:06:34,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:06:34,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:06:34,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:34" (1/1) ... [2022-10-17 17:06:34,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:34" (1/1) ... [2022-10-17 17:06:34,797 INFO L138 Inliner]: procedures = 119, calls = 28, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 113 [2022-10-17 17:06:34,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:06:34,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:06:34,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:06:34,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:06:34,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:34" (1/1) ... [2022-10-17 17:06:34,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:34" (1/1) ... [2022-10-17 17:06:34,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:34" (1/1) ... [2022-10-17 17:06:34,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:34" (1/1) ... [2022-10-17 17:06:34,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:34" (1/1) ... [2022-10-17 17:06:34,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:34" (1/1) ... [2022-10-17 17:06:34,826 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:34" (1/1) ... [2022-10-17 17:06:34,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:34" (1/1) ... [2022-10-17 17:06:34,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:06:34,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:06:34,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:06:34,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:06:34,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:34" (1/1) ... [2022-10-17 17:06:34,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:06:34,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:06:34,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:06:34,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:06:34,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:06:34,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:06:34,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:06:34,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:06:34,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:06:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:06:34,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:06:34,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:06:34,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:06:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:06:35,049 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:06:35,052 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:06:35,290 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:06:35,359 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:06:35,359 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-10-17 17:06:35,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:06:35 BoogieIcfgContainer [2022-10-17 17:06:35,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:06:35,366 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:06:35,366 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:06:35,390 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:06:35,390 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:06:35" (1/1) ... [2022-10-17 17:06:35,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:06:35,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:35,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 29 states and 46 transitions. [2022-10-17 17:06:35,482 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2022-10-17 17:06:35,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 17:06:35,484 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:35,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:35,713 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 17:06:35,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:35,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 29 states and 41 transitions. [2022-10-17 17:06:35,740 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2022-10-17 17:06:35,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 17:06:35,741 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:35,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:36,184 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 17:06:36,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:36,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 33 states and 49 transitions. [2022-10-17 17:06:36,277 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2022-10-17 17:06:36,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 17:06:36,278 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:36,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:36,368 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 17:06:36,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:36,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 35 states and 51 transitions. [2022-10-17 17:06:36,405 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2022-10-17 17:06:36,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 17:06:36,408 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:36,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:36,466 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 17:06:36,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:36,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 35 states and 50 transitions. [2022-10-17 17:06:36,475 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2022-10-17 17:06:36,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 17:06:36,475 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:36,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:36,558 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 17:06:36,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:36,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 39 states and 57 transitions. [2022-10-17 17:06:36,777 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. [2022-10-17 17:06:36,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 17:06:36,778 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:36,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:06:36,828 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:06:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:06:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:06:36,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:06:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:06:36,976 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2022-10-17 17:06:37,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 05:06:37 ImpRootNode [2022-10-17 17:06:37,016 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 17:06:37,017 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:06:37,017 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:06:37,017 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:06:37,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:06:35" (3/4) ... [2022-10-17 17:06:37,019 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 17:06:37,091 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 17:06:37,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:06:37,092 INFO L158 Benchmark]: Toolchain (without parser) took 2864.09ms. Allocated memory was 83.9MB in the beginning and 119.5MB in the end (delta: 35.7MB). Free memory was 54.3MB in the beginning and 65.3MB in the end (delta: -11.0MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2022-10-17 17:06:37,092 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 54.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:06:37,092 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.62ms. Allocated memory is still 83.9MB. Free memory was 54.1MB in the beginning and 50.9MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 17:06:37,093 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.20ms. Allocated memory is still 83.9MB. Free memory was 50.9MB in the beginning and 48.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:06:37,093 INFO L158 Benchmark]: Boogie Preprocessor took 32.55ms. Allocated memory is still 83.9MB. Free memory was 48.9MB in the beginning and 47.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:06:37,094 INFO L158 Benchmark]: RCFGBuilder took 531.37ms. Allocated memory was 83.9MB in the beginning and 119.5MB in the end (delta: 35.7MB). Free memory was 47.1MB in the beginning and 96.0MB in the end (delta: -48.9MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-10-17 17:06:37,094 INFO L158 Benchmark]: CodeCheck took 1650.66ms. Allocated memory is still 119.5MB. Free memory was 95.9MB in the beginning and 66.5MB in the end (delta: 29.4MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-10-17 17:06:37,095 INFO L158 Benchmark]: Witness Printer took 74.37ms. Allocated memory is still 119.5MB. Free memory was 66.5MB in the beginning and 65.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:06:37,097 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, 29 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 168 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 147 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 75 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 113 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1032]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L996] SLL* head = malloc(sizeof(SLL)); [L997] head->next = head [L998] head->data = 0 [L1000] SLL* x = head; [L1001] int state = 1; VAL [head={-1:0}, state=1, x={-1:0}] [L1004] COND FALSE !(__VERIFIER_nondet_int()) [L1025] x->data = state [L1027] EXPR head->next [L1027] x = head->next [L1028] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, state=1, x={-1:0}] [L1030] EXPR x->data VAL [head={-1:0}, state=1, x={-1:0}, x->data=1] [L1030] COND TRUE x->data != 0 [L1032] EXPR x->next [L1032] EXPR x->next->data [L1032] EXPR x->next->data != 0 && x->data > x->next->data [L1032] EXPR x->data [L1032] EXPR x->next [L1032] EXPR x->next->data [L1032] EXPR x->next->data != 0 && x->data > x->next->data VAL [head={-1:0}, state=1, x={-1:0}, x->data=1, x->next={-1:0}, x->next={-1:0}, x->next->data=1, x->next->data=1, x->next->data != 0 && x->data > x->next->data=0] [L1032] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1032] reach_error() VAL [head={-1:0}, state=1, x={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 54.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.62ms. Allocated memory is still 83.9MB. Free memory was 54.1MB in the beginning and 50.9MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.20ms. Allocated memory is still 83.9MB. Free memory was 50.9MB in the beginning and 48.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.55ms. Allocated memory is still 83.9MB. Free memory was 48.9MB in the beginning and 47.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 531.37ms. Allocated memory was 83.9MB in the beginning and 119.5MB in the end (delta: 35.7MB). Free memory was 47.1MB in the beginning and 96.0MB in the end (delta: -48.9MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * CodeCheck took 1650.66ms. Allocated memory is still 119.5MB. Free memory was 95.9MB in the beginning and 66.5MB in the end (delta: 29.4MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Witness Printer took 74.37ms. Allocated memory is still 119.5MB. Free memory was 66.5MB in the beginning and 65.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 17:06:37,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e057c47-aff2-4356-8586-2b1bab28d71c/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE