./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm/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_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm --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-826ab2b [2024-11-13 21:35:35,690 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:35:35,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 21:35:35,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:35:35,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:35:35,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:35:35,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:35:35,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:35:35,798 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:35:35,798 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:35:35,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:35:35,799 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:35:35,799 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 21:35:35,799 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:35:35,799 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 21:35:35,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:35:35,799 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:35:35,800 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:35:35,800 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:35:35,800 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:35:35,800 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 21:35:35,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:35:35,800 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:35:35,801 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:35:35,801 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:35:35,801 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:35:35,801 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:35:35,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:35:35,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:35:35,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:35:35,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:35:35,802 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:35:35,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:35:35,802 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_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm 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 [2024-11-13 21:35:36,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:35:36,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:35:36,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:35:36,209 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:35:36,209 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:35:36,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-1.i Unable to find full path for "g++" [2024-11-13 21:35:38,162 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:35:38,512 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:35:38,514 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-1.i [2024-11-13 21:35:38,527 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm/data/d9709256b/014aad33d58546b3ad4413177b4f5c2d/FLAG0ae2b4b9b [2024-11-13 21:35:38,546 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm/data/d9709256b/014aad33d58546b3ad4413177b4f5c2d [2024-11-13 21:35:38,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:35:38,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:35:38,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:35:38,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:35:38,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:35:38,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:35:38" (1/1) ... [2024-11-13 21:35:38,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2883c547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:35:38, skipping insertion in model container [2024-11-13 21:35:38,562 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:35:38" (1/1) ... [2024-11-13 21:35:38,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:35:38,972 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_6d71dff3-76d6-4238-bfab-d4698c6e1f74/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-1.i[24291,24304] [2024-11-13 21:35:38,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:35:38,990 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:35:39,039 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_6d71dff3-76d6-4238-bfab-d4698c6e1f74/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-1.i[24291,24304] [2024-11-13 21:35:39,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:35:39,068 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:35:39,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:35:39 WrapperNode [2024-11-13 21:35:39,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:35:39,070 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:35:39,070 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:35:39,070 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:35:39,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:35:39" (1/1) ... [2024-11-13 21:35:39,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:35:39" (1/1) ... [2024-11-13 21:35:39,130 INFO L138 Inliner]: procedures = 122, calls = 54, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 196 [2024-11-13 21:35:39,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:35:39,131 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:35:39,131 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:35:39,131 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:35:39,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:35:39" (1/1) ... [2024-11-13 21:35:39,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:35:39" (1/1) ... [2024-11-13 21:35:39,149 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:35:39" (1/1) ... [2024-11-13 21:35:39,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:35:39" (1/1) ... [2024-11-13 21:35:39,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:35:39" (1/1) ... [2024-11-13 21:35:39,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:35:39" (1/1) ... [2024-11-13 21:35:39,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:35:39" (1/1) ... [2024-11-13 21:35:39,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:35:39" (1/1) ... [2024-11-13 21:35:39,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:35:39,188 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:35:39,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:35:39,190 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:35:39,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:35:39" (1/1) ... [2024-11-13 21:35:39,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:35:39,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:35:39,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:35:39,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:35:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-11-13 21:35:39,260 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-11-13 21:35:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 21:35:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 21:35:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 21:35:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:35:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 21:35:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 21:35:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:35:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:35:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:35:39,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:35:39,374 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:35:39,376 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:35:39,417 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-11-13 21:35:39,877 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-13 21:35:39,877 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:35:40,054 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:35:40,055 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-13 21:35:40,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:35:40 BoogieIcfgContainer [2024-11-13 21:35:40,056 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:35:40,057 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:35:40,057 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:35:40,088 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:35:40,088 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:35:40" (1/1) ... [2024-11-13 21:35:40,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:35:40,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:40,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 37 states and 55 transitions. [2024-11-13 21:35:40,161 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2024-11-13 21:35:40,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 21:35:40,163 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:40,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:35:40,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:40,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2024-11-13 21:35:40,441 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2024-11-13 21:35:40,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 21:35:40,442 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:40,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:40,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:35:40,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:40,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 41 states and 56 transitions. [2024-11-13 21:35:40,800 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2024-11-13 21:35:40,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 21:35:40,802 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:40,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:35:40,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:40,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 41 states and 55 transitions. [2024-11-13 21:35:40,890 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2024-11-13 21:35:40,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 21:35:40,890 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:40,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:40,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:35:41,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:41,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 41 states and 54 transitions. [2024-11-13 21:35:41,019 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2024-11-13 21:35:41,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 21:35:41,019 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:41,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:41,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:35:41,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:41,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 52 states and 75 transitions. [2024-11-13 21:35:41,600 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2024-11-13 21:35:41,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 21:35:41,602 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:41,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:41,864 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:35:42,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:42,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 52 states and 73 transitions. [2024-11-13 21:35:42,026 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 73 transitions. [2024-11-13 21:35:42,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 21:35:42,026 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:42,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:42,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:35:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:42,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 52 states and 71 transitions. [2024-11-13 21:35:42,446 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2024-11-13 21:35:42,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 21:35:42,446 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:42,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:43,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:35:44,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:44,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 63 states and 92 transitions. [2024-11-13 21:35:44,142 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 92 transitions. [2024-11-13 21:35:44,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 21:35:44,147 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:44,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:44,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:35:45,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:45,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 74 states and 111 transitions. [2024-11-13 21:35:45,960 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 111 transitions. [2024-11-13 21:35:45,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 21:35:45,961 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:45,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:35:49,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:49,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 92 states and 145 transitions. [2024-11-13 21:35:49,614 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 145 transitions. [2024-11-13 21:35:49,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 21:35:49,615 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:49,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:35:52,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:52,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 103 states and 165 transitions. [2024-11-13 21:35:52,087 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 165 transitions. [2024-11-13 21:35:52,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-13 21:35:52,089 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:52,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:52,965 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:35:53,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:53,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 105 states and 173 transitions. [2024-11-13 21:35:53,474 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 173 transitions. [2024-11-13 21:35:53,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-13 21:35:53,475 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:53,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:54,358 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:35:54,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:54,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 107 states and 181 transitions. [2024-11-13 21:35:54,888 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 181 transitions. [2024-11-13 21:35:54,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-13 21:35:54,889 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:54,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:55,502 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:35:55,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:35:55,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 109 states and 189 transitions. [2024-11-13 21:35:55,776 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 189 transitions. [2024-11-13 21:35:55,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 21:35:55,778 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:35:55,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:35:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:35:57,468 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:36:00,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:36:00,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 118 states and 215 transitions. [2024-11-13 21:36:00,942 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 215 transitions. [2024-11-13 21:36:00,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 21:36:00,943 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:36:00,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:36:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:36:00,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:36:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:36:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:36:01,798 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:36:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:36:02,236 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 16 iterations. [2024-11-13 21:36:02,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:36:02 ImpRootNode [2024-11-13 21:36:02,266 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:36:02,267 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:36:02,267 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:36:02,267 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:36:02,268 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:35:40" (3/4) ... [2024-11-13 21:36:02,269 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 21:36:02,310 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:36:02,310 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:36:02,311 INFO L158 Benchmark]: Toolchain (without parser) took 23761.09ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 118.2MB in the beginning and 422.1MB in the end (delta: -303.9MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. [2024-11-13 21:36:02,312 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:36:02,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.68ms. Allocated memory is still 142.6MB. Free memory was 118.2MB in the beginning and 100.2MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:36:02,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.45ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 98.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:36:02,313 INFO L158 Benchmark]: Boogie Preprocessor took 56.84ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 96.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:36:02,313 INFO L158 Benchmark]: RCFGBuilder took 868.12ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 62.7MB in the end (delta: 33.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 21:36:02,315 INFO L158 Benchmark]: CodeCheck took 22209.27ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 62.7MB in the beginning and 422.2MB in the end (delta: -359.5MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2024-11-13 21:36:02,316 INFO L158 Benchmark]: Witness Printer took 43.47ms. Allocated memory is still 520.1MB. Free memory was 422.2MB in the beginning and 422.1MB in the end (delta: 68.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:36:02,318 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: 22.1s, OverallIterations: 16, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1928 SdHoareTripleChecker+Valid, 10.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 810 mSDsluCounter, 1494 SdHoareTripleChecker+Invalid, 9.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 853 mSDsCounter, 560 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2657 IncrementalHoareTripleChecker+Invalid, 3217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 560 mSolverCounterUnsat, 641 mSDtfsCounter, 2657 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3214 GetRequests, 2957 SyntacticMatches, 83 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13641 ImplicationChecksByTransitivity, 12.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 422 NumberOfCodeBlocks, 422 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 374 ConstructedInterpolants, 0 QuantifiedInterpolants, 2655 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={-2:0}] [L555] COND FALSE !(__VERIFIER_nondet_int()) [L574] n = ((void *)0) [L575] struct TreeNode* pred; VAL [root={-2:0}] [L576] COND TRUE \read(*root) [L577] pred = ((void *)0) [L578] n = root VAL [n={-2:0}, pred={0:0}, root={-2:0}] [L579] EXPR n->left [L579] n->left || n->right [L579] EXPR n->right [L579] n->left || n->right VAL [n={-2:0}, pred={0:0}, root={-2:0}] [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={-2:0}] [L597] List t; [L598] List p = a; VAL [a={-2:0}, p={-2:0}] [L599] COND TRUE __VERIFIER_nondet_int() [L600] p->h = 1 [L601] t = (List) malloc(sizeof(struct node)) [L602] COND FALSE !(t == 0) VAL [a={-2:0}, p={-2:0}, t={-3:0}] [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={-2:0}, p={-3:0}, t={-1:0}] [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={-2:0}] [L615] EXPR p->h VAL [p={-2:0}] [L615] COND FALSE !(p->h == 2) [L617] EXPR p->h VAL [p={-2:0}] [L617] COND TRUE p->h == 1 [L618] EXPR p->n [L618] p = p->n VAL [p={-3:0}] [L617] EXPR p->h VAL [p={-3:0}] [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 0.36ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 517.68ms. Allocated memory is still 142.6MB. Free memory was 118.2MB in the beginning and 100.2MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.45ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 98.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.84ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 96.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 868.12ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 62.7MB in the end (delta: 33.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 22209.27ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 62.7MB in the beginning and 422.2MB in the end (delta: -359.5MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * Witness Printer took 43.47ms. Allocated memory is still 520.1MB. Free memory was 422.2MB in the beginning and 422.1MB in the end (delta: 68.3kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 21:36:02,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d71dff3-76d6-4238-bfab-d4698c6e1f74/bin/ukojak-verify-EEHR8qb7sm/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