./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-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_b86e92ba-9304-47ea-a0c4-4723575c7c2c/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b86e92ba-9304-47ea-a0c4-4723575c7c2c/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_b86e92ba-9304-47ea-a0c4-4723575c7c2c/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b86e92ba-9304-47ea-a0c4-4723575c7c2c/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b86e92ba-9304-47ea-a0c4-4723575c7c2c/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_b86e92ba-9304-47ea-a0c4-4723575c7c2c/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 4bb6c46a4de77c33ebd5db0d25fe513601ef52929336922ed8d1cb2e429dd77c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:31:50,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:31:50,933 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b86e92ba-9304-47ea-a0c4-4723575c7c2c/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 20:31:50,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:31:50,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:31:50,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:31:50,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:31:50,982 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:31:50,982 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:31:50,983 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:31:50,983 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:31:50,983 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:31:50,983 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:31:50,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:31:50,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:31:50,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:31:50,983 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:31:50,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:31:50,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:31:50,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:31:50,984 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:31:50,984 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:31:50,987 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:31:50,988 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:31:50,988 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:31:50,988 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:31:50,988 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:31:50,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:31:50,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:31:50,989 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:31:50,989 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:31:50,989 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:31:50,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:31:50,989 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_b86e92ba-9304-47ea-a0c4-4723575c7c2c/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 -> 4bb6c46a4de77c33ebd5db0d25fe513601ef52929336922ed8d1cb2e429dd77c [2024-11-13 20:31:51,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:31:51,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:31:51,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:31:51,334 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:31:51,335 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:31:51,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b86e92ba-9304-47ea-a0c4-4723575c7c2c/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i Unable to find full path for "g++" [2024-11-13 20:31:53,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:31:53,799 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:31:53,803 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b86e92ba-9304-47ea-a0c4-4723575c7c2c/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2024-11-13 20:31:53,827 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b86e92ba-9304-47ea-a0c4-4723575c7c2c/bin/ukojak-verify-EEHR8qb7sm/data/fd09d3621/3917225a29e849a4aef59060c2ad5d74/FLAGc9b2e6b7b [2024-11-13 20:31:53,947 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b86e92ba-9304-47ea-a0c4-4723575c7c2c/bin/ukojak-verify-EEHR8qb7sm/data/fd09d3621/3917225a29e849a4aef59060c2ad5d74 [2024-11-13 20:31:53,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:31:53,952 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:31:53,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:31:53,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:31:53,961 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:31:53,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:31:53" (1/1) ... [2024-11-13 20:31:53,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ed66c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:31:53, skipping insertion in model container [2024-11-13 20:31:53,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:31:53" (1/1) ... [2024-11-13 20:31:54,028 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:31:54,454 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_b86e92ba-9304-47ea-a0c4-4723575c7c2c/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i[22793,22806] [2024-11-13 20:31:54,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:31:54,485 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:31:54,582 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_b86e92ba-9304-47ea-a0c4-4723575c7c2c/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i[22793,22806] [2024-11-13 20:31:54,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:31:54,628 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:31:54,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:31:54 WrapperNode [2024-11-13 20:31:54,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:31:54,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:31:54,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:31:54,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:31:54,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:31:54" (1/1) ... [2024-11-13 20:31:54,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:31:54" (1/1) ... [2024-11-13 20:31:54,692 INFO L138 Inliner]: procedures = 119, calls = 39, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 118 [2024-11-13 20:31:54,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:31:54,694 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:31:54,694 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:31:54,694 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:31:54,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:31:54" (1/1) ... [2024-11-13 20:31:54,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:31:54" (1/1) ... [2024-11-13 20:31:54,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:31:54" (1/1) ... [2024-11-13 20:31:54,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:31:54" (1/1) ... [2024-11-13 20:31:54,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:31:54" (1/1) ... [2024-11-13 20:31:54,726 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:31:54" (1/1) ... [2024-11-13 20:31:54,728 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:31:54" (1/1) ... [2024-11-13 20:31:54,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:31:54" (1/1) ... [2024-11-13 20:31:54,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:31:54,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:31:54,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:31:54,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:31:54,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:31:54" (1/1) ... [2024-11-13 20:31:54,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:31:54,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b86e92ba-9304-47ea-a0c4-4723575c7c2c/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:31:54,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b86e92ba-9304-47ea-a0c4-4723575c7c2c/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:31:54,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b86e92ba-9304-47ea-a0c4-4723575c7c2c/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:31:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 20:31:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 20:31:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 20:31:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:31:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 20:31:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 20:31:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 20:31:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:31:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:31:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:31:54,989 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:31:54,991 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:31:55,311 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-13 20:31:55,311 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:31:55,379 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:31:55,379 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-13 20:31:55,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:31:55 BoogieIcfgContainer [2024-11-13 20:31:55,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:31:55,381 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:31:55,381 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:31:55,398 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:31:55,398 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:31:55" (1/1) ... [2024-11-13 20:31:55,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:31:55,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:31:55,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2024-11-13 20:31:55,473 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2024-11-13 20:31:55,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 20:31:55,476 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:31:55,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:31:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:31:55,749 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 20:31:55,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:31:55,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2024-11-13 20:31:55,835 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2024-11-13 20:31:55,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 20:31:55,835 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:31:55,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:31:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:31:55,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:31:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:31:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:31:56,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:31:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:31:56,188 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 20:31:56,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:31:56 ImpRootNode [2024-11-13 20:31:56,214 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:31:56,215 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:31:56,215 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:31:56,216 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:31:56,216 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:31:55" (3/4) ... [2024-11-13 20:31:56,217 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 20:31:56,267 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b86e92ba-9304-47ea-a0c4-4723575c7c2c/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 20:31:56,270 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:31:56,271 INFO L158 Benchmark]: Toolchain (without parser) took 2319.27ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 72.4MB in the end (delta: 19.2MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2024-11-13 20:31:56,272 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:31:56,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 676.84ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 73.9MB in the end (delta: 17.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:31:56,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.53ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 72.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:31:56,273 INFO L158 Benchmark]: Boogie Preprocessor took 38.34ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 71.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:31:56,273 INFO L158 Benchmark]: RCFGBuilder took 647.48ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 51.8MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:31:56,273 INFO L158 Benchmark]: CodeCheck took 833.48ms. Allocated memory is still 117.4MB. Free memory was 51.5MB in the beginning and 74.5MB in the end (delta: -23.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:31:56,274 INFO L158 Benchmark]: Witness Printer took 55.23ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 72.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:31:56,279 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 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 16 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 1063]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1000] SLL* head = malloc(sizeof(SLL)); [L1001] head->next = ((void*)0) [L1002] head->prev = ((void*)0) [L1003] head->data = 0 [L1005] SLL* x = head; VAL [head={-1:0}, x={-1:0}] [L1008] COND FALSE !(__VERIFIER_nondet_int()) [L1019] COND TRUE __VERIFIER_nondet_int() [L1020] x = malloc(sizeof(SLL)) [L1021] x->data = 1 [L1022] x->next = head [L1023] x->prev = ((void*)0) [L1024] head = x VAL [head={-2:0}, x={-1:0}] [L1050] x = head VAL [head={-2:0}, x={-2:0}] [L1053] EXPR x->data VAL [head={-2:0}, x={-2:0}] [L1053] COND FALSE !(x->data != 1) [L1059] EXPR x->next [L1059] x = x->next [L1060] COND TRUE \read(*x) [L1062] EXPR x->data VAL [head={-2:0}, x={-1:0}] [L1062] COND TRUE x->data != 1 [L1063] reach_error() VAL [head={-2:0}, x={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 676.84ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 73.9MB in the end (delta: 17.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.53ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 72.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.34ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 71.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 647.48ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 51.8MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 833.48ms. Allocated memory is still 117.4MB. Free memory was 51.5MB in the beginning and 74.5MB in the end (delta: -23.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 55.23ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 72.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 20:31:56,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b86e92ba-9304-47ea-a0c4-4723575c7c2c/bin/ukojak-verify-EEHR8qb7sm/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