./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL --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 fc03d948b3133d1e09e5b9df570e018433e0831cbe27440ede702c2678003704 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:51:30,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:51:31,028 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:51:31,032 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:51:31,033 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:51:31,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:51:31,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:51:31,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:51:31,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:51:31,060 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:51:31,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:51:31,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:51:31,062 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:51:31,062 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:51:31,063 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:51:31,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:51:31,064 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:51:31,064 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:51:31,065 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:51:31,065 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:51:31,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:51:31,067 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:51:31,067 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:51:31,068 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:51:31,068 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:51:31,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:51:31,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:51:31,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:51:31,070 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:51:31,070 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:51:31,071 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:51:31,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:51:31,072 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:51:31,072 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_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc03d948b3133d1e09e5b9df570e018433e0831cbe27440ede702c2678003704 [2023-11-19 02:51:31,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:51:31,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:51:31,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:51:31,347 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:51:31,347 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:51:31,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2023-11-19 02:51:34,547 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:51:34,820 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:51:34,821 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2023-11-19 02:51:34,846 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/data/f8e5f1306/ce0d218186f64fd9b1fa84bc600fcd85/FLAGb04ad99c2 [2023-11-19 02:51:35,129 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/data/f8e5f1306/ce0d218186f64fd9b1fa84bc600fcd85 [2023-11-19 02:51:35,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:51:35,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:51:35,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:51:35,135 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:51:35,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:51:35,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:35" (1/1) ... [2023-11-19 02:51:35,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54242c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:35, skipping insertion in model container [2023-11-19 02:51:35,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:35" (1/1) ... [2023-11-19 02:51:35,223 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:51:35,616 WARN L240 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_3aa57920-abb8-4453-8a45-fcabe1bd18ee/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i[22617,22630] [2023-11-19 02:51:35,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:51:35,644 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:51:35,702 WARN L240 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_3aa57920-abb8-4453-8a45-fcabe1bd18ee/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i[22617,22630] [2023-11-19 02:51:35,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:51:35,745 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:51:35,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:35 WrapperNode [2023-11-19 02:51:35,746 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:51:35,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:51:35,748 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:51:35,748 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:51:35,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:35" (1/1) ... [2023-11-19 02:51:35,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:35" (1/1) ... [2023-11-19 02:51:35,837 INFO L138 Inliner]: procedures = 119, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 115 [2023-11-19 02:51:35,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:51:35,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:51:35,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:51:35,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:51:35,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:35" (1/1) ... [2023-11-19 02:51:35,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:35" (1/1) ... [2023-11-19 02:51:35,876 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:35" (1/1) ... [2023-11-19 02:51:35,876 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:35" (1/1) ... [2023-11-19 02:51:35,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:35" (1/1) ... [2023-11-19 02:51:35,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:35" (1/1) ... [2023-11-19 02:51:35,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:35" (1/1) ... [2023-11-19 02:51:35,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:35" (1/1) ... [2023-11-19 02:51:35,910 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:51:35,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:51:35,912 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:51:35,912 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:51:35,913 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:35" (1/1) ... [2023-11-19 02:51:35,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:51:35,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:51:35,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:51:35,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:51:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 02:51:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 02:51:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 02:51:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:51:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 02:51:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 02:51:36,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:51:36,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:51:36,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:51:36,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:51:36,133 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:51:36,135 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:51:36,423 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:51:36,481 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:51:36,484 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-19 02:51:36,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:36 BoogieIcfgContainer [2023-11-19 02:51:36,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:51:36,491 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:51:36,491 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:51:36,502 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:51:36,503 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:36" (1/1) ... [2023-11-19 02:51:36,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:51:36,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:36,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2023-11-19 02:51:36,583 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2023-11-19 02:51:36,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:51:36,585 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:36,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:51:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:51:36,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:51:36,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:36,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-11-19 02:51:36,865 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-11-19 02:51:36,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 02:51:36,866 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:36,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:51:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:36,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:51:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:37,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:51:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:37,137 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 02:51:37,175 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-19 02:51:37,176 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem17 could not be translated [2023-11-19 02:51:37,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:51:37 ImpRootNode [2023-11-19 02:51:37,183 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:51:37,184 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:51:37,184 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:51:37,184 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:51:37,185 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:36" (3/4) ... [2023-11-19 02:51:37,186 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 02:51:37,195 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-19 02:51:37,196 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem17 could not be translated [2023-11-19 02:51:37,255 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:51:37,255 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:51:37,256 INFO L158 Benchmark]: Toolchain (without parser) took 2122.23ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 93.3MB in the beginning and 125.7MB in the end (delta: -32.4MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2023-11-19 02:51:37,256 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 146.8MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:51:37,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 611.40ms. Allocated memory is still 146.8MB. Free memory was 92.9MB in the beginning and 75.5MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 02:51:37,258 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.05ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 75.5MB in the beginning and 173.6MB in the end (delta: -98.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2023-11-19 02:51:37,258 INFO L158 Benchmark]: Boogie Preprocessor took 72.76ms. Allocated memory is still 205.5MB. Free memory was 173.6MB in the beginning and 173.1MB in the end (delta: 494.4kB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2023-11-19 02:51:37,259 INFO L158 Benchmark]: RCFGBuilder took 578.59ms. Allocated memory is still 205.5MB. Free memory was 173.1MB in the beginning and 154.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 02:51:37,259 INFO L158 Benchmark]: CodeCheck took 692.49ms. Allocated memory is still 205.5MB. Free memory was 154.2MB in the beginning and 127.8MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 02:51:37,260 INFO L158 Benchmark]: Witness Printer took 70.93ms. Allocated memory is still 205.5MB. Free memory was 127.8MB in the beginning and 125.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:51:37,275 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 17 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1053]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L999] SLL* head = malloc(sizeof(SLL)); [L1000] head->next = ((void*)0) [L1001] head->data = 0 [L1003] SLL* x = head; VAL [head={-1:0}, x={-1:0}] [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1016] COND TRUE __VERIFIER_nondet_int() [L1017] x = malloc(sizeof(SLL)) [L1018] x->data = 1 [L1019] x->next = head [L1020] head = x VAL [head={-2:0}, x={-2:0}] [L1040] x = head VAL [head={-2:0}, x={-2:0}] [L1043] EXPR x->data VAL [head={-2:0}, x={-2:0}] [L1043] COND FALSE !(x->data != 1) [L1049] EXPR x->next [L1049] x = x->next [L1050] COND TRUE \read(*x) [L1052] EXPR x->data VAL [head={-2:0}, x={-1:0}] [L1052] COND TRUE x->data != 1 [L1053] reach_error() VAL [head={-2:0}, x={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 146.8MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 611.40ms. Allocated memory is still 146.8MB. Free memory was 92.9MB in the beginning and 75.5MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.05ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 75.5MB in the beginning and 173.6MB in the end (delta: -98.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.76ms. Allocated memory is still 205.5MB. Free memory was 173.6MB in the beginning and 173.1MB in the end (delta: 494.4kB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * RCFGBuilder took 578.59ms. Allocated memory is still 205.5MB. Free memory was 173.1MB in the beginning and 154.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 692.49ms. Allocated memory is still 205.5MB. Free memory was 154.2MB in the beginning and 127.8MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 70.93ms. Allocated memory is still 205.5MB. Free memory was 127.8MB in the beginning and 125.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem17 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem17 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 02:51:37,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa57920-abb8-4453-8a45-fcabe1bd18ee/bin/ukojak-verify-G8NBE6pJGL/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