./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/tree-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/tree-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ff6ec4010c0396675f743c4c0d5de68176a7292a1f0bcf6c389633f85d936d1a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:30:06,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:30:06,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:30:06,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:30:06,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:30:06,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:30:06,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:30:06,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:30:06,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:30:06,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:30:06,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:30:06,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:30:06,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:30:06,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:30:06,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:30:06,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:30:06,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:30:06,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:30:06,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:30:06,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:30:06,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:30:06,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:30:06,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:30:06,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:30:06,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:30:06,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:30:06,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:30:06,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:30:06,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:30:06,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:30:06,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:30:06,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:30:06,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:30:06,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:30:06,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:30:06,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:30:06,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:30:06,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:30:06,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:30:06,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:30:06,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:30:06,678 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:30:06,731 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:30:06,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:30:06,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:30:06,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:30:06,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:30:06,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:30:06,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:30:06,735 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:30:06,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:30:06,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:30:06,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:30:06,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:30:06,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:30:06,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:30:06,739 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:30:06,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:30:06,739 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:30:06,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:30:06,740 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:30:06,740 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:30:06,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:30:06,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:30:06,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:30:06,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:30:06,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:30:06,742 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:30:06,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:30:06,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:30:06,742 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_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff6ec4010c0396675f743c4c0d5de68176a7292a1f0bcf6c389633f85d936d1a [2021-11-23 01:30:07,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:30:07,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:30:07,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:30:07,102 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:30:07,104 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:30:07,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/heap-manipulation/tree-2.i [2021-11-23 01:30:07,195 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/data/6ad750c13/4077e47a6ef74658aa0631a59663155a/FLAG83a43be3e [2021-11-23 01:30:07,781 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:30:07,782 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/sv-benchmarks/c/heap-manipulation/tree-2.i [2021-11-23 01:30:07,798 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/data/6ad750c13/4077e47a6ef74658aa0631a59663155a/FLAG83a43be3e [2021-11-23 01:30:08,075 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/data/6ad750c13/4077e47a6ef74658aa0631a59663155a [2021-11-23 01:30:08,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:30:08,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:30:08,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:30:08,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:30:08,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:30:08,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:30:08" (1/1) ... [2021-11-23 01:30:08,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@116f4c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:08, skipping insertion in model container [2021-11-23 01:30:08,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:30:08" (1/1) ... [2021-11-23 01:30:08,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:30:08,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:30:08,573 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_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/sv-benchmarks/c/heap-manipulation/tree-2.i[22626,22639] [2021-11-23 01:30:08,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:30:08,616 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:30:08,650 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_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/sv-benchmarks/c/heap-manipulation/tree-2.i[22626,22639] [2021-11-23 01:30:08,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:30:08,692 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:30:08,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:08 WrapperNode [2021-11-23 01:30:08,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:30:08,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:30:08,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:30:08,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:30:08,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:08" (1/1) ... [2021-11-23 01:30:08,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:08" (1/1) ... [2021-11-23 01:30:08,748 INFO L137 Inliner]: procedures = 122, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2021-11-23 01:30:08,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:30:08,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:30:08,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:30:08,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:30:08,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:08" (1/1) ... [2021-11-23 01:30:08,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:08" (1/1) ... [2021-11-23 01:30:08,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:08" (1/1) ... [2021-11-23 01:30:08,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:08" (1/1) ... [2021-11-23 01:30:08,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:08" (1/1) ... [2021-11-23 01:30:08,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:08" (1/1) ... [2021-11-23 01:30:08,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:08" (1/1) ... [2021-11-23 01:30:08,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:30:08,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:30:08,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:30:08,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:30:08,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:08" (1/1) ... [2021-11-23 01:30:08,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:30:08,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:30:08,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:30:08,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:30:08,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:30:08,885 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-11-23 01:30:08,885 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-11-23 01:30:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:30:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:30:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:30:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:30:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:30:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:30:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:30:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:30:08,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:30:09,040 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:30:09,041 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:30:09,488 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:30:09,632 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:30:09,633 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-23 01:30:09,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:30:09 BoogieIcfgContainer [2021-11-23 01:30:09,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:30:09,638 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:30:09,638 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:30:09,651 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:30:09,652 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:30:09" (1/1) ... [2021-11-23 01:30:09,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:30:09,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:09,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 27 states and 46 transitions. [2021-11-23 01:30:09,746 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 46 transitions. [2021-11-23 01:30:09,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:30:09,747 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:09,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:09,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:30:10,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:10,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2021-11-23 01:30:10,037 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2021-11-23 01:30:10,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:30:10,037 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:10,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:10,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:30:10,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:10,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2021-11-23 01:30:10,394 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2021-11-23 01:30:10,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 01:30:10,395 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:10,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:10,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:30:10,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:10,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 32 states and 50 transitions. [2021-11-23 01:30:10,737 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2021-11-23 01:30:10,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:30:10,738 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:10,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:10,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:30:11,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:11,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 48 transitions. [2021-11-23 01:30:11,016 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2021-11-23 01:30:11,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:30:11,018 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:11,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:30:11,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:11,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2021-11-23 01:30:11,406 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2021-11-23 01:30:11,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:30:11,407 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:11,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:11,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:30:13,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:13,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 40 states and 69 transitions. [2021-11-23 01:30:13,484 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 69 transitions. [2021-11-23 01:30:13,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:30:13,488 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:13,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:13,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:30:15,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:15,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 46 states and 87 transitions. [2021-11-23 01:30:15,438 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 87 transitions. [2021-11-23 01:30:15,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:30:15,439 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:15,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:15,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:30:15,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:15,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 47 states and 87 transitions. [2021-11-23 01:30:15,820 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 87 transitions. [2021-11-23 01:30:15,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:30:15,822 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:15,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:15,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:30:16,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:16,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 48 states and 87 transitions. [2021-11-23 01:30:16,213 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 87 transitions. [2021-11-23 01:30:16,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:30:16,214 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:16,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:16,502 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:30:17,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:17,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 51 states and 95 transitions. [2021-11-23 01:30:17,565 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 95 transitions. [2021-11-23 01:30:17,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:30:17,566 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:17,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:17,911 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:30:19,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 54 states and 115 transitions. [2021-11-23 01:30:19,974 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 115 transitions. [2021-11-23 01:30:19,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 01:30:19,975 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:19,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:20,111 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:30:20,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:20,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 55 states and 121 transitions. [2021-11-23 01:30:20,795 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 121 transitions. [2021-11-23 01:30:20,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 01:30:20,801 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:20,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:21,288 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:30:22,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:22,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 56 states and 132 transitions. [2021-11-23 01:30:22,629 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 132 transitions. [2021-11-23 01:30:22,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 01:30:22,631 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:22,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:23,208 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:30:25,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:25,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 58 states and 153 transitions. [2021-11-23 01:30:25,780 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 153 transitions. [2021-11-23 01:30:25,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 01:30:25,783 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:25,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:30:25,815 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:30:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:30:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:30:26,333 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:30:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:30:26,730 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 15 iterations. [2021-11-23 01:30:26,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:30:26 ImpRootNode [2021-11-23 01:30:26,811 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:30:26,812 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:30:26,812 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:30:26,812 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:30:26,813 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:30:09" (3/4) ... [2021-11-23 01:30:26,815 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:30:26,936 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:30:26,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:30:26,939 INFO L158 Benchmark]: Toolchain (without parser) took 18857.00ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 67.7MB in the beginning and 34.9MB in the end (delta: 32.8MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2021-11-23 01:30:26,939 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 109.1MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:30:26,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 612.59ms. Allocated memory is still 109.1MB. Free memory was 67.5MB in the beginning and 75.1MB in the end (delta: -7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:30:26,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.16ms. Allocated memory is still 109.1MB. Free memory was 75.1MB in the beginning and 72.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:30:26,942 INFO L158 Benchmark]: Boogie Preprocessor took 39.52ms. Allocated memory is still 109.1MB. Free memory was 72.8MB in the beginning and 71.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:30:26,942 INFO L158 Benchmark]: RCFGBuilder took 847.38ms. Allocated memory is still 109.1MB. Free memory was 71.1MB in the beginning and 48.4MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 01:30:26,943 INFO L158 Benchmark]: CodeCheck took 17173.87ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 48.4MB in the beginning and 37.0MB in the end (delta: 11.4MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2021-11-23 01:30:26,946 INFO L158 Benchmark]: Witness Printer took 123.97ms. Allocated memory is still 132.1MB. Free memory was 37.0MB in the beginning and 34.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:30:26,951 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, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.1s, OverallIterations: 15, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1122 SdHoareTripleChecker+Valid, 25.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 376 mSDsluCounter, 902 SdHoareTripleChecker+Invalid, 23.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 558 mSDsCounter, 547 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1963 IncrementalHoareTripleChecker+Invalid, 2510 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 547 mSolverCounterUnsat, 390 mSDtfsCounter, 1963 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2135 GetRequests, 1956 SyntacticMatches, 39 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6278 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 189 ConstructedInterpolants, 0 QuantifiedInterpolants, 1694 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 5 PerfectInterpolantSequences, 30/53 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 565]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L630] CALL, EXPR create_tree() [L585] struct node *nodelast = ((void *)0); [L586] struct node *node = ((void *)0); VAL [node={0:0}, nodelast={0:0}] [L587] COND TRUE __VERIFIER_nondet_int() [L588] node = malloc(sizeof *node) [L589] COND FALSE !(!node) [L591] node->left = ((void *)0) [L592] node->right = nodelast [L593] COND FALSE !(\read(*nodelast)) [L595] int value = __VERIFIER_nondet_int(); [L596] node->value = value [L597] nodelast = node VAL [node={5:0}, nodelast={5:0}, value=0] [L587] COND FALSE !(__VERIFIER_nondet_int()) [L599] COND TRUE node != ((void *)0) [L600] node->left = malloc(sizeof *node) [L601] COND FALSE !(!node) [L603] EXPR node->left [L603] node->left->left = ((void *)0) [L604] EXPR node->left [L604] node->left->right = ((void *)0) [L605] EXPR node->left [L605] node->left->value = 42 [L606] EXPR node->left [L606] node->left->parent = node [L607] EXPR node->right [L607] node = node->right [L599] COND FALSE !(node != ((void *)0)) [L609] return nodelast; [L630] RET, EXPR create_tree() [L630] struct node *data = create_tree(); [L631] COND FALSE !(!data) [L633] CALL inspect(data) [L575] COND FALSE !(!(node)) VAL [node={5:0}, node={5:0}] [L576] COND TRUE node != ((void *)0) [L577] node->left VAL [node={5:0}, node={5:0}, node->left={3:0}] [L577] COND TRUE node->left [L578] EXPR node->left [L578] EXPR node->left->value VAL [node={5:0}, node={5:0}, node->left={3:0}, node->left->value=42] [L578] COND FALSE !(!(node->left->value == 42)) [L579] EXPR node->value VAL [node={5:0}, node={5:0}, node->value=0] [L579] COND TRUE !(node->value) [L579] CALL fail() [L565] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 109.1MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 612.59ms. Allocated memory is still 109.1MB. Free memory was 67.5MB in the beginning and 75.1MB in the end (delta: -7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.16ms. Allocated memory is still 109.1MB. Free memory was 75.1MB in the beginning and 72.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.52ms. Allocated memory is still 109.1MB. Free memory was 72.8MB in the beginning and 71.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 847.38ms. Allocated memory is still 109.1MB. Free memory was 71.1MB in the beginning and 48.4MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * CodeCheck took 17173.87ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 48.4MB in the beginning and 37.0MB in the end (delta: 11.4MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. * Witness Printer took 123.97ms. Allocated memory is still 132.1MB. Free memory was 37.0MB in the beginning and 34.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 01:30:27,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2c6119e-0d5e-481b-8a6f-46eb79ae748f/bin/ukojak-LBtLqBUTdQ/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