./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-1.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_61e26726-2200-4807-b1a6-2bcfae7a519a/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/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_61e26726-2200-4807-b1a6-2bcfae7a519a/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/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_61e26726-2200-4807-b1a6-2bcfae7a519a/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 2971ec3e9ef2eef1d2151174358645d6ce0c6d4fe66ae89c00ded0f196979d8a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:15:37,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:15:37,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:15:37,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:15:37,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:15:37,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:15:37,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:15:37,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:15:37,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:15:37,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:15:37,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:15:37,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:15:37,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:15:37,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:15:37,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:15:37,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:15:37,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:15:37,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:15:37,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:15:37,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:15:37,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:15:37,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:15:37,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:15:37,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:15:37,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:15:37,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:15:37,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:15:37,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:15:37,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:15:37,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:15:37,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:15:37,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:15:37,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:15:37,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:15:37,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:15:37,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:15:37,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:15:37,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:15:37,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:15:37,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:15:37,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:15:37,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:15:37,493 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:15:37,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:15:37,495 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:15:37,495 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:15:37,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:15:37,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:15:37,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:15:37,497 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:15:37,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:15:37,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:15:37,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:15:37,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:15:37,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:15:37,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:15:37,509 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:15:37,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:15:37,509 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:15:37,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:15:37,510 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:15:37,510 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:15:37,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:15:37,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:15:37,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:15:37,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:15:37,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:15:37,512 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:15:37,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:15:37,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:15:37,513 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_61e26726-2200-4807-b1a6-2bcfae7a519a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2971ec3e9ef2eef1d2151174358645d6ce0c6d4fe66ae89c00ded0f196979d8a [2021-11-22 23:15:37,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:15:37,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:15:37,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:15:37,843 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:15:37,844 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:15:37,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-1.i [2021-11-22 23:15:37,913 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/bin/ukojak-LBtLqBUTdQ/data/c7ede0173/a379b9fa7a234b58aa741051a6024d38/FLAG2d34cddac [2021-11-22 23:15:38,487 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:15:38,494 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-1.i [2021-11-22 23:15:38,514 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/bin/ukojak-LBtLqBUTdQ/data/c7ede0173/a379b9fa7a234b58aa741051a6024d38/FLAG2d34cddac [2021-11-22 23:15:38,728 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/bin/ukojak-LBtLqBUTdQ/data/c7ede0173/a379b9fa7a234b58aa741051a6024d38 [2021-11-22 23:15:38,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:15:38,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:15:38,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:15:38,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:15:38,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:15:38,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:15:38" (1/1) ... [2021-11-22 23:15:38,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ac92d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:38, skipping insertion in model container [2021-11-22 23:15:38,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:15:38" (1/1) ... [2021-11-22 23:15:38,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:15:38,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:15:39,177 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_61e26726-2200-4807-b1a6-2bcfae7a519a/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-1.i[24291,24304] [2021-11-22 23:15:39,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:15:39,202 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:15:39,273 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_61e26726-2200-4807-b1a6-2bcfae7a519a/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-1.i[24291,24304] [2021-11-22 23:15:39,287 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:15:39,324 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:15:39,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:39 WrapperNode [2021-11-22 23:15:39,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:15:39,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:15:39,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:15:39,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:15:39,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:39" (1/1) ... [2021-11-22 23:15:39,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:39" (1/1) ... [2021-11-22 23:15:39,429 INFO L137 Inliner]: procedures = 122, calls = 54, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 205 [2021-11-22 23:15:39,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:15:39,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:15:39,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:15:39,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:15:39,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:39" (1/1) ... [2021-11-22 23:15:39,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:39" (1/1) ... [2021-11-22 23:15:39,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:39" (1/1) ... [2021-11-22 23:15:39,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:39" (1/1) ... [2021-11-22 23:15:39,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:39" (1/1) ... [2021-11-22 23:15:39,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:39" (1/1) ... [2021-11-22 23:15:39,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:39" (1/1) ... [2021-11-22 23:15:39,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:15:39,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:15:39,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:15:39,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:15:39,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:15:39" (1/1) ... [2021-11-22 23:15:39,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:15:39,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:15:39,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:15:39,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:15:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-22 23:15:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-22 23:15:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:15:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:15:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 23:15:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:15:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 23:15:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 23:15:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:15:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:15:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:15:39,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:15:39,754 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:15:39,755 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:15:39,799 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-11-22 23:15:40,196 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:15:40,296 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:15:40,296 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-22 23:15:40,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:15:40 BoogieIcfgContainer [2021-11-22 23:15:40,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:15:40,300 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:15:40,300 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:15:40,311 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:15:40,311 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:15:40" (1/1) ... [2021-11-22 23:15:40,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:15:40,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:40,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 37 states and 55 transitions. [2021-11-22 23:15:40,420 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2021-11-22 23:15:40,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-22 23:15:40,422 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:40,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:40,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:15:40,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:40,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2021-11-22 23:15:40,689 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2021-11-22 23:15:40,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-22 23:15:40,691 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:40,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:40,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:15:40,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:40,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 41 states and 56 transitions. [2021-11-22 23:15:40,941 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2021-11-22 23:15:40,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 23:15:40,943 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:40,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:41,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:15:41,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:41,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 41 states and 55 transitions. [2021-11-22 23:15:41,038 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2021-11-22 23:15:41,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:15:41,039 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:41,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:41,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:15:41,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:41,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 41 states and 54 transitions. [2021-11-22 23:15:41,100 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2021-11-22 23:15:41,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:15:41,101 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:41,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:41,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:15:41,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:41,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 52 states and 75 transitions. [2021-11-22 23:15:41,351 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2021-11-22 23:15:41,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-22 23:15:41,352 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:41,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:41,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:15:41,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:41,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 52 states and 73 transitions. [2021-11-22 23:15:41,560 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 73 transitions. [2021-11-22 23:15:41,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-22 23:15:41,563 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:41,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:41,675 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:15:41,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:41,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 52 states and 71 transitions. [2021-11-22 23:15:41,806 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2021-11-22 23:15:41,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 23:15:41,810 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:41,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:42,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:15:42,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:42,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 63 states and 91 transitions. [2021-11-22 23:15:42,677 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 91 transitions. [2021-11-22 23:15:42,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 23:15:42,680 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:42,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:15:43,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:43,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 74 states and 109 transitions. [2021-11-22 23:15:43,607 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 109 transitions. [2021-11-22 23:15:43,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-22 23:15:43,608 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:43,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:44,035 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:15:45,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:45,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 92 states and 141 transitions. [2021-11-22 23:15:45,689 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 141 transitions. [2021-11-22 23:15:45,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-22 23:15:45,690 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:45,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:45,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:15:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:47,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 103 states and 160 transitions. [2021-11-22 23:15:47,014 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 160 transitions. [2021-11-22 23:15:47,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 23:15:47,016 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:47,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:47,449 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:15:47,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:47,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 105 states and 168 transitions. [2021-11-22 23:15:47,848 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 168 transitions. [2021-11-22 23:15:47,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 23:15:47,849 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:47,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:48,320 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:15:48,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:48,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 107 states and 176 transitions. [2021-11-22 23:15:48,733 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 176 transitions. [2021-11-22 23:15:48,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 23:15:48,734 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:48,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:49,183 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:15:49,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:49,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 109 states and 184 transitions. [2021-11-22 23:15:49,408 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 184 transitions. [2021-11-22 23:15:49,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-22 23:15:49,409 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:49,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:50,171 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:15:52,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:52,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 118 states and 206 transitions. [2021-11-22 23:15:52,735 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 206 transitions. [2021-11-22 23:15:52,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-22 23:15:52,736 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:52,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:15:52,770 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:15:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:15:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:15:53,288 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:15:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:15:53,704 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 16 iterations. [2021-11-22 23:15:53,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.11 11:15:53 ImpRootNode [2021-11-22 23:15:53,770 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-22 23:15:53,771 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 23:15:53,771 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 23:15:53,771 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 23:15:53,772 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:15:40" (3/4) ... [2021-11-22 23:15:53,774 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 23:15:53,897 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-22 23:15:53,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 23:15:53,898 INFO L158 Benchmark]: Toolchain (without parser) took 15165.25ms. Allocated memory was 83.9MB in the beginning and 144.7MB in the end (delta: 60.8MB). Free memory was 44.0MB in the beginning and 96.6MB in the end (delta: -52.6MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-11-22 23:15:53,899 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 61.9MB in the beginning and 61.8MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:15:53,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 590.62ms. Allocated memory was 83.9MB in the beginning and 115.3MB in the end (delta: 31.5MB). Free memory was 43.7MB in the beginning and 80.4MB in the end (delta: -36.7MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2021-11-22 23:15:53,901 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.95ms. Allocated memory is still 115.3MB. Free memory was 80.4MB in the beginning and 78.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:15:53,901 INFO L158 Benchmark]: Boogie Preprocessor took 81.59ms. Allocated memory is still 115.3MB. Free memory was 78.3MB in the beginning and 76.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:15:53,902 INFO L158 Benchmark]: RCFGBuilder took 783.80ms. Allocated memory is still 115.3MB. Free memory was 76.2MB in the beginning and 48.3MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-22 23:15:53,903 INFO L158 Benchmark]: CodeCheck took 13470.63ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 48.3MB in the beginning and 100.8MB in the end (delta: -52.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:15:53,904 INFO L158 Benchmark]: Witness Printer took 126.28ms. Allocated memory is still 144.7MB. Free memory was 100.8MB in the beginning and 96.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 23:15:53,909 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, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.4s, OverallIterations: 16, 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, 1904 SdHoareTripleChecker+Valid, 8.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 786 mSDsluCounter, 1494 SdHoareTripleChecker+Invalid, 7.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 929 mSDsCounter, 600 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2601 IncrementalHoareTripleChecker+Invalid, 3201 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 600 mSolverCounterUnsat, 641 mSDtfsCounter, 2601 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3182 GetRequests, 2909 SyntacticMatches, 101 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13806 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 422 NumberOfCodeBlocks, 422 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 374 ConstructedInterpolants, 0 QuantifiedInterpolants, 2892 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 15/60 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: 620]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L552] struct TreeNode* root = malloc(sizeof(*root)), *n; [L552] struct TreeNode* root = malloc(sizeof(*root)), *n; [L553] root->left = ((void *)0) [L554] root->right = ((void *)0) VAL [root={-1:0}] [L555] COND FALSE !(__VERIFIER_nondet_int()) [L574] n = ((void *)0) [L575] struct TreeNode* pred; VAL [n={0:0}, root={-1:0}] [L576] COND TRUE \read(*root) [L577] pred = ((void *)0) [L578] n = root VAL [n={-1:0}, pred={0:0}, root={-1:0}] [L579] EXPR n->left [L579] n->left || n->right [L579] EXPR n->right [L579] n->left || n->right VAL [n={-1:0}, n->left={0:0}, n->left || n->right=0, n->right={0:0}, pred={0:0}, root={-1:0}] [L579] COND FALSE !(n->left || n->right) [L586] COND FALSE !(\read(*pred)) [L592] root = ((void *)0) [L576] COND FALSE !(\read(*root)) [L595] List a = (List) malloc(sizeof(struct node)); [L596] COND FALSE !(a == 0) VAL [a={-3:0}, n={-1:0}, pred={0:0}, pred->left={13:14}, root={0:0}] [L597] List t; [L598] List p = a; VAL [a={-3:0}, n={-1:0}, p={-3:0}, pred={0:0}, pred->left={13:14}, root={0:0}] [L599] COND TRUE __VERIFIER_nondet_int() [L600] p->h = 1 [L601] t = (List) malloc(sizeof(struct node)) [L602] COND FALSE !(t == 0) VAL [a={-3:0}, n={-1:0}, p={-3:0}, pred={0:0}, pred->left={13:14}, root={0:0}, t={-2:0}] [L603] p->n = t [L604] EXPR p->n [L604] p = p->n [L599] COND FALSE !(__VERIFIER_nondet_int()) [L606] COND TRUE __VERIFIER_nondet_int() [L607] p->h = 2 [L608] t = (List) malloc(sizeof(struct node)) [L609] COND FALSE !(t == 0) VAL [a={-3:0}, n={-1:0}, p={-2:0}, pred={0:0}, pred->left={13:14}, root={0:0}, t={16688:0}] [L610] p->n = t [L611] EXPR p->n [L611] p = p->n [L606] COND FALSE !(__VERIFIER_nondet_int()) [L613] p->h = 3 [L614] p = a VAL [a={-3:0}, n={-1:0}, p={-3:0}, pred={0:0}, pred->left={13:14}, root={0:0}, t={16688:0}] [L615] EXPR p->h VAL [a={-3:0}, n={-1:0}, p={-3:0}, p->h=1, pred={0:0}, pred->left={13:14}, root={0:0}, t={16688:0}] [L615] COND FALSE !(p->h == 2) [L617] EXPR p->h VAL [a={-3:0}, n={-1:0}, p={-3:0}, p->h=1, pred={0:0}, pred->left={13:14}, root={0:0}, t={16688:0}] [L617] COND TRUE p->h == 1 [L618] EXPR p->n [L618] p = p->n [L617] EXPR p->h VAL [a={-3:0}, n={-1:0}, p={-2:0}, p->h=2, pred={0:0}, pred->left={13:14}, root={0:0}, t={16688:0}] [L617] COND FALSE !(p->h == 1) [L619] EXPR p->h VAL [a={-3:0}, n={-1:0}, p={-2:0}, p->h=2, pred={0:0}, pred->left={13:14}, root={0:0}, t={16688:0}] [L619] COND TRUE p->h != 3 [L620] reach_error() VAL [a={-3:0}, n={-1:0}, p={-2:0}, pred={0:0}, pred->left={13:14}, root={0:0}, t={16688:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 61.9MB in the beginning and 61.8MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 590.62ms. Allocated memory was 83.9MB in the beginning and 115.3MB in the end (delta: 31.5MB). Free memory was 43.7MB in the beginning and 80.4MB in the end (delta: -36.7MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.95ms. Allocated memory is still 115.3MB. Free memory was 80.4MB in the beginning and 78.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.59ms. Allocated memory is still 115.3MB. Free memory was 78.3MB in the beginning and 76.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 783.80ms. Allocated memory is still 115.3MB. Free memory was 76.2MB in the beginning and 48.3MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * CodeCheck took 13470.63ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 48.3MB in the beginning and 100.8MB in the end (delta: -52.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 126.28ms. Allocated memory is still 144.7MB. Free memory was 100.8MB in the beginning and 96.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-22 23:15:53,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e26726-2200-4807-b1a6-2bcfae7a519a/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