./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/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_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/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_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/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 95643fe6222ef6bf06c5549a97aa2ed3c03be56764b1592b76d2122ae82e7069 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:23:45,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:23:46,061 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 23:23:46,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:23:46,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:23:46,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:23:46,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:23:46,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:23:46,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:23:46,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:23:46,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:23:46,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:23:46,108 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:23:46,110 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:23:46,111 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:23:46,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:23:46,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:23:46,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:23:46,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:23:46,112 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:23:46,112 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:23:46,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:23:46,115 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:23:46,116 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:23:46,116 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:23:46,116 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:23:46,117 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:23:46,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:23:46,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:23:46,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:23:46,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:23:46,118 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:23:46,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:23:46,119 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_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95643fe6222ef6bf06c5549a97aa2ed3c03be56764b1592b76d2122ae82e7069 [2024-11-08 23:23:46,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:23:46,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:23:46,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:23:46,401 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:23:46,402 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:23:46,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i Unable to find full path for "g++" [2024-11-08 23:23:48,398 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:23:48,706 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:23:48,706 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i [2024-11-08 23:23:48,719 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/bin/ukojak-verify-ImItNfHLgk/data/3b517b7e1/c32b0d5ea9404b86b205b23e26cc9fa5/FLAG858b60e06 [2024-11-08 23:23:48,735 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/bin/ukojak-verify-ImItNfHLgk/data/3b517b7e1/c32b0d5ea9404b86b205b23e26cc9fa5 [2024-11-08 23:23:48,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:23:48,739 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:23:48,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:23:48,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:23:48,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:23:48,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:23:48" (1/1) ... [2024-11-08 23:23:48,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a2ab88e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:23:48, skipping insertion in model container [2024-11-08 23:23:48,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:23:48" (1/1) ... [2024-11-08 23:23:48,794 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:23:49,156 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_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22480,22493] [2024-11-08 23:23:49,163 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_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22552,22565] [2024-11-08 23:23:49,165 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_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22720,22733] [2024-11-08 23:23:49,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:23:49,189 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:23:49,239 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_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22480,22493] [2024-11-08 23:23:49,240 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_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22552,22565] [2024-11-08 23:23:49,244 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_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22720,22733] [2024-11-08 23:23:49,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:23:49,280 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:23:49,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:23:49 WrapperNode [2024-11-08 23:23:49,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:23:49,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:23:49,282 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:23:49,282 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:23:49,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:23:49" (1/1) ... [2024-11-08 23:23:49,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:23:49" (1/1) ... [2024-11-08 23:23:49,325 INFO L138 Inliner]: procedures = 119, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 107 [2024-11-08 23:23:49,326 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:23:49,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:23:49,327 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:23:49,327 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:23:49,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:23:49" (1/1) ... [2024-11-08 23:23:49,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:23:49" (1/1) ... [2024-11-08 23:23:49,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:23:49" (1/1) ... [2024-11-08 23:23:49,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:23:49" (1/1) ... [2024-11-08 23:23:49,350 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:23:49" (1/1) ... [2024-11-08 23:23:49,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:23:49" (1/1) ... [2024-11-08 23:23:49,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:23:49" (1/1) ... [2024-11-08 23:23:49,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:23:49" (1/1) ... [2024-11-08 23:23:49,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:23:49,361 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:23:49,361 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:23:49,361 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:23:49,362 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:23:49" (1/1) ... [2024-11-08 23:23:49,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:23:49,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:23:49,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:23:49,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:23:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 23:23:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 23:23:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 23:23:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:23:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 23:23:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 23:23:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 23:23:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:23:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:23:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:23:49,563 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:23:49,565 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:23:49,786 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-08 23:23:49,787 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:23:49,885 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:23:49,885 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-08 23:23:49,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:23:49 BoogieIcfgContainer [2024-11-08 23:23:49,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:23:49,887 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:23:49,892 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:23:49,905 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:23:49,905 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:23:49" (1/1) ... [2024-11-08 23:23:49,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:23:49,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:23:49,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 25 states and 39 transitions. [2024-11-08 23:23:49,969 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 39 transitions. [2024-11-08 23:23:49,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 23:23:49,972 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:23:49,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:23:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:23:50,146 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 23:23:50,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:23:50,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2024-11-08 23:23:50,203 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2024-11-08 23:23:50,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 23:23:50,203 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:23:50,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:23:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:23:50,325 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 23:23:50,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:23:50,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2024-11-08 23:23:50,490 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2024-11-08 23:23:50,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 23:23:50,491 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:23:50,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:23:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:23:50,809 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 23:23:51,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:23:51,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2024-11-08 23:23:51,223 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-11-08 23:23:51,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 23:23:51,224 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:23:51,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:23:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:23:52,239 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 23:23:52,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:23:52,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2024-11-08 23:23:52,708 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2024-11-08 23:23:52,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 23:23:52,711 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:23:52,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:23:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:23:53,976 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 23:23:54,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:23:54,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2024-11-08 23:23:54,466 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-11-08 23:23:54,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 23:23:54,466 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:23:54,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:23:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:23:54,485 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:23:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:23:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:23:54,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:23:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:23:54,597 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-08 23:23:54,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:23:54 ImpRootNode [2024-11-08 23:23:54,641 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:23:54,642 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:23:54,643 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:23:54,643 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:23:54,644 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:23:49" (3/4) ... [2024-11-08 23:23:54,645 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 23:23:54,699 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 23:23:54,703 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:23:54,704 INFO L158 Benchmark]: Toolchain (without parser) took 5964.20ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 142.0MB in the beginning and 137.6MB in the end (delta: 4.4MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2024-11-08 23:23:54,704 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:23:54,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 540.32ms. Allocated memory is still 172.0MB. Free memory was 142.0MB in the beginning and 121.0MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 23:23:54,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.31ms. Allocated memory is still 172.0MB. Free memory was 121.0MB in the beginning and 118.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:23:54,708 INFO L158 Benchmark]: Boogie Preprocessor took 33.63ms. Allocated memory is still 172.0MB. Free memory was 118.9MB in the beginning and 117.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:23:54,709 INFO L158 Benchmark]: RCFGBuilder took 525.32ms. Allocated memory is still 172.0MB. Free memory was 117.4MB in the beginning and 96.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 23:23:54,709 INFO L158 Benchmark]: CodeCheck took 4754.55ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 96.4MB in the beginning and 139.7MB in the end (delta: -43.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:23:54,710 INFO L158 Benchmark]: Witness Printer took 60.82ms. Allocated memory is still 207.6MB. Free memory was 139.7MB in the beginning and 137.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:23:54,716 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: 4.7s, 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, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 119 SdHoareTripleChecker+Invalid, 1.6s 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, 315 SyntacticMatches, 8 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 341 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: 1049]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1006] SLL* list = malloc(sizeof(SLL)); [L1007] list->next = ((void*)0) [L1008] list->colour = BLACK [L1010] SLL* end = list; VAL [end={7201:0}, list={7201:0}] [L1013] COND FALSE !(__VERIFIER_nondet_int()) [L1034] end = ((void*)0) [L1035] end = list VAL [end={7201:0}, list={7201:0}] [L1038] COND FALSE !(!(((void*)0) != end)) VAL [end={7201:0}, list={7201:0}] [L1039] EXPR end->colour VAL [end={7201:0}, list={7201:0}] [L1039] COND FALSE !(!(BLACK == end->colour)) [L1041] COND FALSE !(((void*)0) != end) VAL [end={7201:0}, list={7201:0}] [L1041] COND TRUE ((void*)0) != end [L1043] EXPR end->colour [L1043] COND FALSE !(RED == end->colour) [L1049] EXPR end->next VAL [end={7201:0}, list={7201:0}] [L1049] COND TRUE !(end->next) [L1049] reach_error() VAL [end={7201:0}, list={7201:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 540.32ms. Allocated memory is still 172.0MB. Free memory was 142.0MB in the beginning and 121.0MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.31ms. Allocated memory is still 172.0MB. Free memory was 121.0MB in the beginning and 118.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.63ms. Allocated memory is still 172.0MB. Free memory was 118.9MB in the beginning and 117.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 525.32ms. Allocated memory is still 172.0MB. Free memory was 117.4MB in the beginning and 96.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 4754.55ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 96.4MB in the beginning and 139.7MB in the end (delta: -43.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 60.82ms. Allocated memory is still 207.6MB. Free memory was 139.7MB in the beginning and 137.6MB 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 23:23:54,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4ab51c-fbfe-4109-aeb0-6c2ff373568e/bin/ukojak-verify-ImItNfHLgk/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