./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk --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 0209a5ecd1f90a7dc207e0462366045d25daa538d59f8499c5199765a86166a3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:19:42,508 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:19:42,615 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 23:19:42,624 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:19:42,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:19:42,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:19:42,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:19:42,674 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:19:42,675 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:19:42,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:19:42,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:19:42,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:19:42,677 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:19:42,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:19:42,680 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:19:42,680 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:19:42,681 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:19:42,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:19:42,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:19:42,682 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:19:42,682 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:19:42,685 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:19:42,688 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:19:42,688 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:19:42,689 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:19:42,690 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:19:42,690 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:19:42,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:19:42,693 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:19:42,693 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:19:42,693 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:19:42,694 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:19:42,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:19:42,694 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0209a5ecd1f90a7dc207e0462366045d25daa538d59f8499c5199765a86166a3 [2024-11-08 23:19:43,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:19:43,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:19:43,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:19:43,091 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:19:43,092 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:19:43,093 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i Unable to find full path for "g++" [2024-11-08 23:19:45,240 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:19:45,594 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:19:45,595 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2024-11-08 23:19:45,639 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/data/46a7d0189/81ae39a4e77e46c5a55de67e30db47c3/FLAGd6055b1e7 [2024-11-08 23:19:45,822 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/data/46a7d0189/81ae39a4e77e46c5a55de67e30db47c3 [2024-11-08 23:19:45,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:19:45,827 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:19:45,829 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:19:45,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:19:45,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:19:45,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:19:45" (1/1) ... [2024-11-08 23:19:45,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e934b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:45, skipping insertion in model container [2024-11-08 23:19:45,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:19:45" (1/1) ... [2024-11-08 23:19:45,894 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:19:46,341 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_faa79a59-fae5-41da-ac32-b40f472b06a9/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22575,22588] [2024-11-08 23:19:46,347 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_faa79a59-fae5-41da-ac32-b40f472b06a9/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22647,22660] [2024-11-08 23:19:46,350 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_faa79a59-fae5-41da-ac32-b40f472b06a9/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22815,22828] [2024-11-08 23:19:46,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:19:46,370 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:19:46,418 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_faa79a59-fae5-41da-ac32-b40f472b06a9/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22575,22588] [2024-11-08 23:19:46,420 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_faa79a59-fae5-41da-ac32-b40f472b06a9/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22647,22660] [2024-11-08 23:19:46,423 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_faa79a59-fae5-41da-ac32-b40f472b06a9/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22815,22828] [2024-11-08 23:19:46,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:19:46,469 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:19:46,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:46 WrapperNode [2024-11-08 23:19:46,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:19:46,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:19:46,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:19:46,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:19:46,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:46" (1/1) ... [2024-11-08 23:19:46,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:46" (1/1) ... [2024-11-08 23:19:46,524 INFO L138 Inliner]: procedures = 119, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 114 [2024-11-08 23:19:46,524 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:19:46,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:19:46,525 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:19:46,526 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:19:46,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:46" (1/1) ... [2024-11-08 23:19:46,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:46" (1/1) ... [2024-11-08 23:19:46,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:46" (1/1) ... [2024-11-08 23:19:46,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:46" (1/1) ... [2024-11-08 23:19:46,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:46" (1/1) ... [2024-11-08 23:19:46,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:46" (1/1) ... [2024-11-08 23:19:46,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:46" (1/1) ... [2024-11-08 23:19:46,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:46" (1/1) ... [2024-11-08 23:19:46,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:19:46,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:19:46,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:19:46,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:19:46,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:46" (1/1) ... [2024-11-08 23:19:46,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:19:46,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:19:46,607 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:19:46,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:19:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 23:19:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 23:19:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 23:19:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:19:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 23:19:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 23:19:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 23:19:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:19:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:19:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:19:46,783 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:19:46,792 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:19:47,133 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-08 23:19:47,134 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:19:47,247 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:19:47,247 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-08 23:19:47,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:19:47 BoogieIcfgContainer [2024-11-08 23:19:47,248 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:19:47,249 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:19:47,249 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:19:47,266 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:19:47,266 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:19:47" (1/1) ... [2024-11-08 23:19:47,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:19:47,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:19:47,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 25 states and 39 transitions. [2024-11-08 23:19:47,352 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 39 transitions. [2024-11-08 23:19:47,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 23:19:47,354 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:19:47,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:19:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:19:47,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:19:47,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:19:47,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2024-11-08 23:19:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2024-11-08 23:19:47,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 23:19:47,984 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:19:47,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:19:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:19:48,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:19:48,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:19:48,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2024-11-08 23:19:48,800 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2024-11-08 23:19:48,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 23:19:48,800 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:19:48,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:19:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:19:49,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:19:50,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:19:50,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2024-11-08 23:19:50,632 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-11-08 23:19:50,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 23:19:50,633 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:19:50,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:19:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:19:52,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:19:54,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:19:54,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2024-11-08 23:19:54,477 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2024-11-08 23:19:54,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 23:19:54,481 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:19:54,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:19:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:19:59,994 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:20:01,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:20:01,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2024-11-08 23:20:01,147 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-11-08 23:20:01,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 23:20:01,148 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:20:01,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:20:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:20:01,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:20:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:20:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:20:01,221 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:20:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:20:01,252 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-08 23:20:01,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:20:01 ImpRootNode [2024-11-08 23:20:01,280 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:20:01,281 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:20:01,281 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:20:01,281 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:20:01,282 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:19:47" (3/4) ... [2024-11-08 23:20:01,284 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 23:20:01,323 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 23:20:01,324 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:20:01,324 INFO L158 Benchmark]: Toolchain (without parser) took 15497.25ms. Allocated memory was 161.5MB in the beginning and 304.1MB in the end (delta: 142.6MB). Free memory was 132.1MB in the beginning and 189.0MB in the end (delta: -56.9MB). Peak memory consumption was 86.4MB. Max. memory is 16.1GB. [2024-11-08 23:20:01,325 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 117.4MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:20:01,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 640.89ms. Allocated memory is still 161.5MB. Free memory was 132.1MB in the beginning and 111.3MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 23:20:01,326 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.64ms. Allocated memory is still 161.5MB. Free memory was 111.3MB in the beginning and 109.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:20:01,327 INFO L158 Benchmark]: Boogie Preprocessor took 38.98ms. Allocated memory is still 161.5MB. Free memory was 109.2MB in the beginning and 107.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:20:01,327 INFO L158 Benchmark]: RCFGBuilder took 683.04ms. Allocated memory is still 161.5MB. Free memory was 107.1MB in the beginning and 84.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 23:20:01,328 INFO L158 Benchmark]: CodeCheck took 14031.43ms. Allocated memory was 161.5MB in the beginning and 304.1MB in the end (delta: 142.6MB). Free memory was 84.0MB in the beginning and 191.1MB in the end (delta: -107.1MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2024-11-08 23:20:01,328 INFO L158 Benchmark]: Witness Printer took 42.78ms. Allocated memory is still 304.1MB. Free memory was 191.1MB in the beginning and 189.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:20:01,331 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, 25 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 14.0s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 10.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 119 SdHoareTripleChecker+Invalid, 10.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 155 IncrementalHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 55 mSDtfsCounter, 155 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 355 GetRequests, 318 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 349 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 0/8 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: 1051]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1005] SLL* list = malloc(sizeof(SLL)); [L1006] list->next = ((void*)0) [L1007] list->prev = ((void*)0) [L1008] list->colour = BLACK [L1010] SLL* end = list; VAL [end={22707:0}, list={22707:0}] [L1013] COND FALSE !(__VERIFIER_nondet_int()) [L1036] end = ((void*)0) [L1037] end = list VAL [end={22707:0}, list={22707:0}] [L1040] COND FALSE !(!(((void*)0) != end)) VAL [end={22707:0}, list={22707:0}] [L1041] EXPR end->colour VAL [end={22707:0}, list={22707:0}] [L1041] COND FALSE !(!(BLACK == end->colour)) [L1043] COND FALSE !(((void*)0) != end) VAL [end={22707:0}, list={22707:0}] [L1043] COND TRUE ((void*)0) != end [L1045] EXPR end->colour [L1045] COND FALSE !(RED == end->colour) [L1051] EXPR end->next VAL [end={22707:0}, list={22707:0}] [L1051] COND TRUE !(end->next) [L1051] reach_error() VAL [end={22707:0}, list={22707:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 117.4MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 640.89ms. Allocated memory is still 161.5MB. Free memory was 132.1MB in the beginning and 111.3MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.64ms. Allocated memory is still 161.5MB. Free memory was 111.3MB in the beginning and 109.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.98ms. Allocated memory is still 161.5MB. Free memory was 109.2MB in the beginning and 107.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 683.04ms. Allocated memory is still 161.5MB. Free memory was 107.1MB in the beginning and 84.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * CodeCheck took 14031.43ms. Allocated memory was 161.5MB in the beginning and 304.1MB in the end (delta: 142.6MB). Free memory was 84.0MB in the beginning and 191.1MB in the end (delta: -107.1MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * Witness Printer took 42.78ms. Allocated memory is still 304.1MB. Free memory was 191.1MB in the beginning and 189.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-08 23:20:01,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa79a59-fae5-41da-ac32-b40f472b06a9/bin/ukojak-verify-ImItNfHLgk/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