./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/tree-4.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_7fb60f2c-05ef-4759-b40b-9c31217c4f14/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/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_7fb60f2c-05ef-4759-b40b-9c31217c4f14/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/tree-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/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_7fb60f2c-05ef-4759-b40b-9c31217c4f14/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 93cf6e13715dcd5309cb599b4358d41a64464f02c52b3716bc554a9d0e833f5e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:40:25,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:40:25,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:40:25,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:40:25,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:40:25,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:40:25,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:40:25,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:40:25,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:40:25,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:40:25,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:40:25,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:40:25,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:40:25,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:40:25,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:40:25,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:40:25,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:40:25,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:40:25,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:40:25,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:40:25,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:40:25,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:40:25,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:40:25,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:40:25,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:40:25,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:40:25,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:40:25,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:40:25,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:40:25,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:40:25,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:40:25,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:40:25,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:40:25,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:40:25,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:40:25,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:40:25,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:40:25,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:40:25,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:40:25,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:40:25,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:40:25,169 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:40:25,227 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:40:25,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:40:25,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:40:25,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:40:25,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:40:25,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:40:25,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:40:25,238 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:40:25,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:40:25,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:40:25,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:40:25,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:40:25,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:40:25,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:40:25,241 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:40:25,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:40:25,241 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:40:25,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:40:25,242 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:40:25,242 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:40:25,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:40:25,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:40:25,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:40:25,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:40:25,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:40:25,243 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:40:25,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:40:25,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:40:25,244 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_7fb60f2c-05ef-4759-b40b-9c31217c4f14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93cf6e13715dcd5309cb599b4358d41a64464f02c52b3716bc554a9d0e833f5e [2021-11-23 01:40:25,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:40:25,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:40:25,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:40:25,568 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:40:25,569 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:40:25,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/heap-manipulation/tree-4.i [2021-11-23 01:40:25,689 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/bin/ukojak-LBtLqBUTdQ/data/7b48c9b9c/9560d39dc1374801a24b6f403fd4dcf1/FLAG620605e3d [2021-11-23 01:40:26,370 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:40:26,371 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/sv-benchmarks/c/heap-manipulation/tree-4.i [2021-11-23 01:40:26,392 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/bin/ukojak-LBtLqBUTdQ/data/7b48c9b9c/9560d39dc1374801a24b6f403fd4dcf1/FLAG620605e3d [2021-11-23 01:40:26,662 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/bin/ukojak-LBtLqBUTdQ/data/7b48c9b9c/9560d39dc1374801a24b6f403fd4dcf1 [2021-11-23 01:40:26,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:40:26,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:40:26,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:40:26,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:40:26,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:40:26,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:40:26" (1/1) ... [2021-11-23 01:40:26,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6836db0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:26, skipping insertion in model container [2021-11-23 01:40:26,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:40:26" (1/1) ... [2021-11-23 01:40:26,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:40:26,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:40:27,144 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_7fb60f2c-05ef-4759-b40b-9c31217c4f14/sv-benchmarks/c/heap-manipulation/tree-4.i[22626,22639] [2021-11-23 01:40:27,187 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:40:27,197 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:40:27,251 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_7fb60f2c-05ef-4759-b40b-9c31217c4f14/sv-benchmarks/c/heap-manipulation/tree-4.i[22626,22639] [2021-11-23 01:40:27,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:40:27,292 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:40:27,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:27 WrapperNode [2021-11-23 01:40:27,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:40:27,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:40:27,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:40:27,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:40:27,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:27" (1/1) ... [2021-11-23 01:40:27,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:27" (1/1) ... [2021-11-23 01:40:27,356 INFO L137 Inliner]: procedures = 122, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2021-11-23 01:40:27,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:40:27,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:40:27,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:40:27,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:40:27,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:27" (1/1) ... [2021-11-23 01:40:27,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:27" (1/1) ... [2021-11-23 01:40:27,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:27" (1/1) ... [2021-11-23 01:40:27,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:27" (1/1) ... [2021-11-23 01:40:27,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:27" (1/1) ... [2021-11-23 01:40:27,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:27" (1/1) ... [2021-11-23 01:40:27,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:27" (1/1) ... [2021-11-23 01:40:27,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:40:27,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:40:27,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:40:27,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:40:27,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:27" (1/1) ... [2021-11-23 01:40:27,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:40:27,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:40:27,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:40:27,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:40:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:40:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-11-23 01:40:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-11-23 01:40:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:40:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:40:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:40:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:40:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:40:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:40:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:40:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:40:27,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:40:27,660 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:40:27,661 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:40:28,018 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:40:28,123 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:40:28,123 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-23 01:40:28,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:40:28 BoogieIcfgContainer [2021-11-23 01:40:28,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:40:28,127 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:40:28,127 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:40:28,139 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:40:28,139 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:40:28" (1/1) ... [2021-11-23 01:40:28,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:40:28,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:28,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 28 states and 47 transitions. [2021-11-23 01:40:28,214 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2021-11-23 01:40:28,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:40:28,215 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:28,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:28,327 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 01:40:28,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:28,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2021-11-23 01:40:28,380 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2021-11-23 01:40:28,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:40:28,381 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:28,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:28,458 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 01:40:28,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:28,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 33 states and 49 transitions. [2021-11-23 01:40:28,691 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2021-11-23 01:40:28,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:40:28,692 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:28,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:28,775 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 01:40:28,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:28,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 34 states and 52 transitions. [2021-11-23 01:40:28,986 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2021-11-23 01:40:28,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:40:28,986 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:28,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:29,161 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 01:40:29,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:29,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 50 transitions. [2021-11-23 01:40:29,276 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2021-11-23 01:40:29,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 01:40:29,279 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:29,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:29,378 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 01:40:29,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:29,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 33 states and 46 transitions. [2021-11-23 01:40:29,649 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2021-11-23 01:40:29,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:40:29,650 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:29,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:29,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:30,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:40:31,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:31,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 40 states and 67 transitions. [2021-11-23 01:40:31,392 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 67 transitions. [2021-11-23 01:40:31,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:40:31,395 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:31,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:31,828 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 01:40:34,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:34,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 49 states and 96 transitions. [2021-11-23 01:40:34,031 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 96 transitions. [2021-11-23 01:40:34,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:40:34,032 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:34,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:34,144 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 01:40:34,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:34,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 50 states and 96 transitions. [2021-11-23 01:40:34,398 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 96 transitions. [2021-11-23 01:40:34,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:40:34,399 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:34,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:34,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:40:34,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:34,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 51 states and 96 transitions. [2021-11-23 01:40:34,780 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 96 transitions. [2021-11-23 01:40:34,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 01:40:34,781 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:34,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:35,215 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 01:40:36,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:36,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 55 states and 105 transitions. [2021-11-23 01:40:36,477 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 105 transitions. [2021-11-23 01:40:36,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 01:40:36,478 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:36,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:36,598 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 01:40:37,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:37,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 56 states and 110 transitions. [2021-11-23 01:40:37,496 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 110 transitions. [2021-11-23 01:40:37,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:40:37,497 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:37,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:38,005 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 01:40:39,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:39,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 58 states and 121 transitions. [2021-11-23 01:40:39,454 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 121 transitions. [2021-11-23 01:40:39,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:40:39,456 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:39,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:40,392 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 01:40:42,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:42,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 59 states and 127 transitions. [2021-11-23 01:40:42,085 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 127 transitions. [2021-11-23 01:40:42,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:40:42,086 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:42,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:40:42,482 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 01:40:43,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:40:43,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 60 states and 141 transitions. [2021-11-23 01:40:43,912 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 141 transitions. [2021-11-23 01:40:43,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:40:43,913 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:40:43,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:40:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:40:43,942 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:40:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:40:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:40:44,609 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:40:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:40:45,331 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 15 iterations. [2021-11-23 01:40:45,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:40:45 ImpRootNode [2021-11-23 01:40:45,389 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:40:45,389 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:40:45,389 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:40:45,390 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:40:45,390 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:40:28" (3/4) ... [2021-11-23 01:40:45,406 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:40:45,512 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:40:45,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:40:45,513 INFO L158 Benchmark]: Toolchain (without parser) took 18846.66ms. Allocated memory was 115.3MB in the beginning and 192.9MB in the end (delta: 77.6MB). Free memory was 80.8MB in the beginning and 135.9MB in the end (delta: -55.1MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2021-11-23 01:40:45,513 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 81.8MB. Free memory is still 37.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:40:45,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 625.80ms. Allocated memory is still 115.3MB. Free memory was 80.6MB in the beginning and 82.3MB in the end (delta: -1.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 01:40:45,514 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.10ms. Allocated memory is still 115.3MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:40:45,515 INFO L158 Benchmark]: Boogie Preprocessor took 45.19ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 78.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:40:45,515 INFO L158 Benchmark]: RCFGBuilder took 722.35ms. Allocated memory is still 115.3MB. Free memory was 78.1MB in the beginning and 83.7MB in the end (delta: -5.6MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2021-11-23 01:40:45,516 INFO L158 Benchmark]: CodeCheck took 17261.97ms. Allocated memory was 115.3MB in the beginning and 192.9MB in the end (delta: 77.6MB). Free memory was 83.7MB in the beginning and 138.0MB in the end (delta: -54.3MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2021-11-23 01:40:45,517 INFO L158 Benchmark]: Witness Printer took 122.61ms. Allocated memory is still 192.9MB. Free memory was 138.0MB in the beginning and 135.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:40:45,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.2s, 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, 1255 SdHoareTripleChecker+Valid, 26.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 502 mSDsluCounter, 836 SdHoareTripleChecker+Invalid, 25.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 616 mSDsCounter, 633 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2379 IncrementalHoareTripleChecker+Invalid, 3012 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 633 mSolverCounterUnsat, 332 mSDtfsCounter, 2379 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2255 GetRequests, 2069 SyntacticMatches, 52 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5800 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 238 NumberOfCodeBlocks, 238 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 204 ConstructedInterpolants, 0 QuantifiedInterpolants, 2573 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 5 PerfectInterpolantSequences, 27/54 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: [L632] 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={-2:0}, nodelast={-2:0}, value=0] [L587] COND FALSE !(__VERIFIER_nondet_int()) [L599] COND TRUE node != ((void *)0) [L600] node->parent = ((void *)0) VAL [node={-2:0}, nodelast={-2:0}, value=0] [L601] COND TRUE node != ((void *)0) [L602] node->left = malloc(sizeof *node) [L603] COND FALSE !(!node) [L605] EXPR node->left [L605] node->left->left = ((void *)0) [L606] EXPR node->left [L606] node->left->right = ((void *)0) [L607] EXPR node->left [L607] node->left->value = 42 [L608] EXPR node->left [L608] node->left->parent = node [L609] EXPR node->right [L609] node = node->right [L601] COND FALSE !(node != ((void *)0)) [L611] return nodelast; [L632] RET, EXPR create_tree() [L632] struct node *data = create_tree(); [L633] COND FALSE !(!data) [L635] CALL inspect(data) [L575] COND FALSE !(!(node)) VAL [node={-2:0}, node={-2:0}] [L576] COND TRUE node != ((void *)0) [L577] node->left VAL [node={-2:0}, node={-2:0}, node->left={-1:0}] [L577] COND TRUE node->left [L578] EXPR node->left [L578] EXPR node->left->value VAL [node={-2:0}, node={-2:0}, node->left={-1:0}, node->left->value=42] [L578] COND FALSE !(!(node->left->value == 42)) [L579] EXPR node->value VAL [node={-2:0}, node={-2:0}, 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 0.21ms. Allocated memory is still 81.8MB. Free memory is still 37.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 625.80ms. Allocated memory is still 115.3MB. Free memory was 80.6MB in the beginning and 82.3MB in the end (delta: -1.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.10ms. Allocated memory is still 115.3MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.19ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 78.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 722.35ms. Allocated memory is still 115.3MB. Free memory was 78.1MB in the beginning and 83.7MB in the end (delta: -5.6MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * CodeCheck took 17261.97ms. Allocated memory was 115.3MB in the beginning and 192.9MB in the end (delta: 77.6MB). Free memory was 83.7MB in the beginning and 138.0MB in the end (delta: -54.3MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * Witness Printer took 122.61ms. Allocated memory is still 192.9MB. Free memory was 138.0MB in the beginning and 135.9MB 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 01:40:45,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb60f2c-05ef-4759-b40b-9c31217c4f14/bin/ukojak-LBtLqBUTdQ/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