./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-optional-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_7eecb8f5-b257-4982-9dbc-a0d6331950f0/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7eecb8f5-b257-4982-9dbc-a0d6331950f0/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_7eecb8f5-b257-4982-9dbc-a0d6331950f0/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7eecb8f5-b257-4982-9dbc-a0d6331950f0/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-optional-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7eecb8f5-b257-4982-9dbc-a0d6331950f0/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_7eecb8f5-b257-4982-9dbc-a0d6331950f0/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 88a09c8f9046119952ab983278979c8bac528a0f4e69aababe99c00b4eccdca0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:53:51,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:53:51,941 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7eecb8f5-b257-4982-9dbc-a0d6331950f0/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 22:53:51,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:53:51,949 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:53:51,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:53:51,991 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:53:51,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:53:51,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:53:51,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:53:51,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:53:51,996 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:53:51,996 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:53:51,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:53:51,997 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:53:51,997 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:53:51,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:53:51,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:53:51,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:53:51,999 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:53:51,999 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:53:52,000 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:53:52,000 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:53:52,001 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:53:52,001 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:53:52,001 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:53:52,002 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:53:52,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:53:52,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:53:52,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:53:52,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:53:52,004 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:53:52,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:53:52,005 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_7eecb8f5-b257-4982-9dbc-a0d6331950f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7eecb8f5-b257-4982-9dbc-a0d6331950f0/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88a09c8f9046119952ab983278979c8bac528a0f4e69aababe99c00b4eccdca0 [2024-11-08 22:53:52,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:53:52,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:53:52,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:53:52,303 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:53:52,304 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:53:52,305 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7eecb8f5-b257-4982-9dbc-a0d6331950f0/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/forester-heap/sll-optional-2.i Unable to find full path for "g++" [2024-11-08 22:53:54,395 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:53:54,675 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:53:54,675 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7eecb8f5-b257-4982-9dbc-a0d6331950f0/sv-benchmarks/c/forester-heap/sll-optional-2.i [2024-11-08 22:53:54,688 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7eecb8f5-b257-4982-9dbc-a0d6331950f0/bin/ukojak-verify-ImItNfHLgk/data/a2ac5f440/d692197b589c406e801aa68a2b7e5e27/FLAG6bacf7125 [2024-11-08 22:53:54,703 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7eecb8f5-b257-4982-9dbc-a0d6331950f0/bin/ukojak-verify-ImItNfHLgk/data/a2ac5f440/d692197b589c406e801aa68a2b7e5e27 [2024-11-08 22:53:54,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:53:54,707 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:53:54,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:53:54,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:53:54,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:53:54,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:53:54" (1/1) ... [2024-11-08 22:53:54,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50511654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:54, skipping insertion in model container [2024-11-08 22:53:54,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:53:54" (1/1) ... [2024-11-08 22:53:54,772 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:53:55,165 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_7eecb8f5-b257-4982-9dbc-a0d6331950f0/sv-benchmarks/c/forester-heap/sll-optional-2.i[22641,22654] [2024-11-08 22:53:55,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:53:55,192 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:53:55,253 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_7eecb8f5-b257-4982-9dbc-a0d6331950f0/sv-benchmarks/c/forester-heap/sll-optional-2.i[22641,22654] [2024-11-08 22:53:55,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:53:55,292 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:53:55,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:55 WrapperNode [2024-11-08 22:53:55,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:53:55,295 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:53:55,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:53:55,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:53:55,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:55" (1/1) ... [2024-11-08 22:53:55,319 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:55" (1/1) ... [2024-11-08 22:53:55,345 INFO L138 Inliner]: procedures = 119, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 110 [2024-11-08 22:53:55,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:53:55,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:53:55,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:53:55,347 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:53:55,357 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:55" (1/1) ... [2024-11-08 22:53:55,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:55" (1/1) ... [2024-11-08 22:53:55,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:55" (1/1) ... [2024-11-08 22:53:55,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:55" (1/1) ... [2024-11-08 22:53:55,369 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:55" (1/1) ... [2024-11-08 22:53:55,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:55" (1/1) ... [2024-11-08 22:53:55,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:55" (1/1) ... [2024-11-08 22:53:55,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:55" (1/1) ... [2024-11-08 22:53:55,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:53:55,383 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:53:55,383 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:53:55,383 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:53:55,384 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:55" (1/1) ... [2024-11-08 22:53:55,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:53:55,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7eecb8f5-b257-4982-9dbc-a0d6331950f0/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:53:55,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7eecb8f5-b257-4982-9dbc-a0d6331950f0/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:53:55,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7eecb8f5-b257-4982-9dbc-a0d6331950f0/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:53:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 22:53:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 22:53:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 22:53:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:53:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 22:53:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 22:53:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 22:53:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:53:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:53:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:53:55,645 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:53:55,648 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:53:55,957 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-08 22:53:55,958 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:53:56,158 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:53:56,158 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-08 22:53:56,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:53:56 BoogieIcfgContainer [2024-11-08 22:53:56,159 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:53:56,160 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:53:56,160 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:53:56,171 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:53:56,172 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:53:56" (1/1) ... [2024-11-08 22:53:56,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:53:56,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:56,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2024-11-08 22:53:56,258 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2024-11-08 22:53:56,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:53:56,261 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:56,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:53:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:56,601 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 22:53:56,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:56,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2024-11-08 22:53:56,700 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-11-08 22:53:56,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 22:53:56,700 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:56,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:53:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:53:56,908 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:53:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:53:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:53:57,236 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:53:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:53:57,337 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-08 22:53:57,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:53:57 ImpRootNode [2024-11-08 22:53:57,372 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:53:57,372 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:53:57,373 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:53:57,373 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:53:57,373 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:53:56" (3/4) ... [2024-11-08 22:53:57,378 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 22:53:57,428 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7eecb8f5-b257-4982-9dbc-a0d6331950f0/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 22:53:57,428 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:53:57,430 INFO L158 Benchmark]: Toolchain (without parser) took 2721.73ms. Allocated memory was 132.1MB in the beginning and 186.6MB in the end (delta: 54.5MB). Free memory was 98.1MB in the beginning and 145.3MB in the end (delta: -47.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 22:53:57,431 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 132.1MB. Free memory was 72.4MB in the beginning and 72.2MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:53:57,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 585.04ms. Allocated memory is still 132.1MB. Free memory was 97.7MB in the beginning and 77.7MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 22:53:57,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.19ms. Allocated memory is still 132.1MB. Free memory was 77.4MB in the beginning and 75.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:53:57,434 INFO L158 Benchmark]: Boogie Preprocessor took 32.04ms. Allocated memory is still 132.1MB. Free memory was 75.5MB in the beginning and 73.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:53:57,436 INFO L158 Benchmark]: RCFGBuilder took 775.69ms. Allocated memory was 132.1MB in the beginning and 186.6MB in the end (delta: 54.5MB). Free memory was 73.5MB in the beginning and 137.2MB in the end (delta: -63.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2024-11-08 22:53:57,437 INFO L158 Benchmark]: CodeCheck took 1212.34ms. Allocated memory is still 186.6MB. Free memory was 137.2MB in the beginning and 147.4MB in the end (delta: -10.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:53:57,437 INFO L158 Benchmark]: Witness Printer took 56.01ms. Allocated memory is still 186.6MB. Free memory was 147.4MB in the beginning and 145.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:53:57,442 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 55 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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: 1007]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L996] SLL* head = malloc(sizeof(SLL)); [L997] head->next = ((void*)0) [L998] COND FALSE !(__VERIFIER_nondet_int()) [L998] COND FALSE !(__VERIFIER_nondet_int()) [L998] head->data = 0 [L998] head->opt = head [L999] SLL* x = head; VAL [head={-1:0}, x={-1:0}] [L1001] COND FALSE !(__VERIFIER_nondet_int()) [L1004] x = head VAL [head={-1:0}, x={-1:0}] [L1005] COND FALSE !(x != ((void*)0)) VAL [head={-1:0}, x={-1:0}] [L1005] COND TRUE x != ((void*)0) VAL [head={-1:0}, x={-1:0}] [L1007] EXPR x->data [L1007] EXPR x->data == 2 && x->opt == x VAL [head={-1:0}, x={-1:0}] [L1007] COND TRUE !(x->data == 2 && x->opt == x) [L1007] reach_error() VAL [head={-1:0}, x={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 132.1MB. Free memory was 72.4MB in the beginning and 72.2MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 585.04ms. Allocated memory is still 132.1MB. Free memory was 97.7MB in the beginning and 77.7MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.19ms. Allocated memory is still 132.1MB. Free memory was 77.4MB in the beginning and 75.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.04ms. Allocated memory is still 132.1MB. Free memory was 75.5MB in the beginning and 73.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 775.69ms. Allocated memory was 132.1MB in the beginning and 186.6MB in the end (delta: 54.5MB). Free memory was 73.5MB in the beginning and 137.2MB in the end (delta: -63.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * CodeCheck took 1212.34ms. Allocated memory is still 186.6MB. Free memory was 137.2MB in the beginning and 147.4MB in the end (delta: -10.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 56.01ms. Allocated memory is still 186.6MB. Free memory was 147.4MB in the beginning and 145.3MB 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 22:53:57,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7eecb8f5-b257-4982-9dbc-a0d6331950f0/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