./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/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_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --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 0.3.0-dev-d790fec [2024-12-06 02:50:28,075 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:50:28,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 02:50:28,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 02:50:28,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 02:50:28,184 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:50:28,185 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:50:28,186 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:50:28,186 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:50:28,186 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:50:28,187 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:50:28,187 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:50:28,187 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 02:50:28,187 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 02:50:28,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 02:50:28,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:50:28,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:50:28,187 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:50:28,188 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:50:28,188 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 02:50:28,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:50:28,188 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:50:28,188 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:50:28,188 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:50:28,188 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:50:28,188 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:50:28,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:50:28,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:50:28,189 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:50:28,189 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:50:28,189 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:50:28,189 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 02:50:28,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 02:50:28,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 [2024-12-06 02:50:28,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:50:28,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:50:28,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:50:28,516 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:50:28,516 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:50:28,518 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-1.i [2024-12-06 02:50:32,012 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/data/799bb5593/7b4cf19a010945b58119ae1d973b3908/FLAGd0f22a6b0 [2024-12-06 02:50:32,311 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:50:32,312 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-1.i [2024-12-06 02:50:32,324 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/data/799bb5593/7b4cf19a010945b58119ae1d973b3908/FLAGd0f22a6b0 [2024-12-06 02:50:32,341 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/data/799bb5593/7b4cf19a010945b58119ae1d973b3908 [2024-12-06 02:50:32,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:50:32,345 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:50:32,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:50:32,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:50:32,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:50:32,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:50:32" (1/1) ... [2024-12-06 02:50:32,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4870af2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:32, skipping insertion in model container [2024-12-06 02:50:32,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:50:32" (1/1) ... [2024-12-06 02:50:32,381 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:50:32,653 WARN L250 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_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-1.i[24291,24304] [2024-12-06 02:50:32,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:50:32,668 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:50:32,721 WARN L250 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_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-1.i[24291,24304] [2024-12-06 02:50:32,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:50:32,750 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:50:32,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:32 WrapperNode [2024-12-06 02:50:32,750 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:50:32,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:50:32,752 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:50:32,752 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:50:32,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:32" (1/1) ... [2024-12-06 02:50:32,771 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:32" (1/1) ... [2024-12-06 02:50:32,797 INFO L138 Inliner]: procedures = 122, calls = 54, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 196 [2024-12-06 02:50:32,797 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:50:32,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:50:32,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:50:32,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:50:32,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:32" (1/1) ... [2024-12-06 02:50:32,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:32" (1/1) ... [2024-12-06 02:50:32,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:32" (1/1) ... [2024-12-06 02:50:32,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:32" (1/1) ... [2024-12-06 02:50:32,821 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:32" (1/1) ... [2024-12-06 02:50:32,822 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:32" (1/1) ... [2024-12-06 02:50:32,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:32" (1/1) ... [2024-12-06 02:50:32,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:32" (1/1) ... [2024-12-06 02:50:32,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:32" (1/1) ... [2024-12-06 02:50:32,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:50:32,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:50:32,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:50:32,835 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:50:32,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:50:32" (1/1) ... [2024-12-06 02:50:32,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:50:32,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:50:32,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:50:32,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:50:32,901 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-12-06 02:50:32,901 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-12-06 02:50:32,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 02:50:32,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 02:50:32,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 02:50:32,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:50:32,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 02:50:32,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 02:50:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 02:50:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 02:50:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:50:32,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:50:33,007 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:50:33,009 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:50:33,058 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-12-06 02:50:33,398 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-12-06 02:50:33,398 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:50:33,520 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:50:33,521 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2024-12-06 02:50:33,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:50:33 BoogieIcfgContainer [2024-12-06 02:50:33,521 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:50:33,522 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:50:33,522 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:50:33,533 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:50:33,534 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:50:33" (1/1) ... [2024-12-06 02:50:33,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:50:33,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:33,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 37 states and 55 transitions. [2024-12-06 02:50:33,588 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2024-12-06 02:50:33,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 02:50:33,590 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:33,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:33,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:50:33,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:33,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2024-12-06 02:50:33,904 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2024-12-06 02:50:33,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 02:50:33,905 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:33,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:34,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:50:34,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:34,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 41 states and 56 transitions. [2024-12-06 02:50:34,196 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2024-12-06 02:50:34,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 02:50:34,197 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:34,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:50:34,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:34,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 41 states and 55 transitions. [2024-12-06 02:50:34,271 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2024-12-06 02:50:34,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-06 02:50:34,272 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:34,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:34,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 02:50:34,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:34,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 52 states and 76 transitions. [2024-12-06 02:50:34,696 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 76 transitions. [2024-12-06 02:50:34,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-06 02:50:34,697 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:34,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:34,921 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 02:50:35,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:35,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 52 states and 74 transitions. [2024-12-06 02:50:35,061 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 74 transitions. [2024-12-06 02:50:35,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-06 02:50:35,062 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:35,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:35,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 02:50:35,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:35,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 52 states and 72 transitions. [2024-12-06 02:50:35,391 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2024-12-06 02:50:35,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 02:50:35,392 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:35,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:35,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 02:50:36,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:36,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 63 states and 93 transitions. [2024-12-06 02:50:36,400 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 93 transitions. [2024-12-06 02:50:36,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 02:50:36,403 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:36,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:36,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 02:50:37,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:37,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 74 states and 112 transitions. [2024-12-06 02:50:37,715 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 112 transitions. [2024-12-06 02:50:37,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-06 02:50:37,716 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:37,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:50:40,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:40,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 92 states and 145 transitions. [2024-12-06 02:50:40,933 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 145 transitions. [2024-12-06 02:50:40,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-06 02:50:40,934 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:40,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:41,549 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:50:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:43,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 103 states and 166 transitions. [2024-12-06 02:50:43,114 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 166 transitions. [2024-12-06 02:50:43,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-06 02:50:43,115 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:43,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:43,871 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 02:50:44,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:44,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 105 states and 174 transitions. [2024-12-06 02:50:44,351 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 174 transitions. [2024-12-06 02:50:44,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-06 02:50:44,352 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:44,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:44,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:45,076 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 02:50:45,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:45,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 107 states and 182 transitions. [2024-12-06 02:50:45,577 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 182 transitions. [2024-12-06 02:50:45,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-06 02:50:45,578 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:45,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:46,210 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 02:50:46,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:46,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 109 states and 190 transitions. [2024-12-06 02:50:46,418 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 190 transitions. [2024-12-06 02:50:46,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-06 02:50:46,419 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:46,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:50:47,540 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:50:50,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:50:50,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 118 states and 216 transitions. [2024-12-06 02:50:50,271 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 216 transitions. [2024-12-06 02:50:50,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-06 02:50:50,272 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:50:50,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:50:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:50:50,308 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:50:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:50:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:50:50,956 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:50:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:50:51,385 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 15 iterations. [2024-12-06 02:50:51,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 02:50:51 ImpRootNode [2024-12-06 02:50:51,421 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 02:50:51,422 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 02:50:51,422 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 02:50:51,422 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 02:50:51,423 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:50:33" (3/4) ... [2024-12-06 02:50:51,423 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 02:50:51,472 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 17. [2024-12-06 02:50:51,527 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 02:50:51,527 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 02:50:51,527 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 02:50:51,529 INFO L158 Benchmark]: Toolchain (without parser) took 19183.04ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 116.4MB in the beginning and 184.4MB in the end (delta: -68.0MB). Peak memory consumption was 95.6MB. Max. memory is 16.1GB. [2024-12-06 02:50:51,529 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:50:51,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.25ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 98.3MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 02:50:51,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.47ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 96.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:50:51,530 INFO L158 Benchmark]: Boogie Preprocessor took 36.25ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 94.3MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:50:51,530 INFO L158 Benchmark]: RCFGBuilder took 686.56ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 58.9MB in the end (delta: 35.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-06 02:50:51,531 INFO L158 Benchmark]: CodeCheck took 17899.37ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 58.7MB in the beginning and 187.9MB in the end (delta: -129.2MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2024-12-06 02:50:51,531 INFO L158 Benchmark]: Witness Printer took 105.58ms. Allocated memory is still 310.4MB. Free memory was 187.9MB in the beginning and 184.4MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:50:51,533 INFO L338 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: 17.8s, OverallIterations: 15, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1759 SdHoareTripleChecker+Valid, 10.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 804 mSDsluCounter, 1375 SdHoareTripleChecker+Invalid, 9.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 847 mSDsCounter, 577 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2664 IncrementalHoareTripleChecker+Invalid, 3241 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 577 mSolverCounterUnsat, 528 mSDtfsCounter, 2664 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3060 GetRequests, 2803 SyntacticMatches, 87 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12952 ImplicationChecksByTransitivity, 10.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 399 NumberOfCodeBlocks, 399 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 352 ConstructedInterpolants, 0 QuantifiedInterpolants, 2641 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 13/58 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, ConComCheckerStatistics: 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 [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}, 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={-1:0}] [L597] List t; [L598] List p = a; VAL [a={-1:0}, p={-1:0}] [L599] COND TRUE __VERIFIER_nondet_int() [L600] p->h = 1 [L601] t = (List) malloc(sizeof(struct node)) [L602] COND FALSE !(t == 0) VAL [a={-1:0}, p={-1:0}, t={27530:0}] [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={-1:0}, p={27530:0}, t={27529:0}] [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 [p={-1:0}] [L615] EXPR p->h VAL [p={-1:0}] [L615] COND FALSE !(p->h == 2) [L617] EXPR p->h VAL [p={-1:0}] [L617] COND TRUE p->h == 1 [L618] EXPR p->n [L618] p = p->n VAL [p={27530:0}] [L617] EXPR p->h VAL [p={27530:0}] [L617] COND FALSE !(p->h == 1) [L619] EXPR p->h [L619] COND TRUE p->h != 3 [L620] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.25ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 98.3MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.47ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 96.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.25ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 94.3MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 686.56ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 58.9MB in the end (delta: 35.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * CodeCheck took 17899.37ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 58.7MB in the beginning and 187.9MB in the end (delta: -129.2MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * Witness Printer took 105.58ms. Allocated memory is still 310.4MB. Free memory was 187.9MB in the beginning and 184.4MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 02:50:51,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21adfc32-aa0e-4657-b2df-0e5d3ff52e23/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE