./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-01_false-unreach-call_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-01_false-unreach-call_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31de2fb67e84e52bb7705ac8720e6b139fef2d91 ................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 18:46:33,217 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 18:46:33,218 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 18:46:33,225 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 18:46:33,225 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 18:46:33,226 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 18:46:33,226 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 18:46:33,228 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 18:46:33,229 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 18:46:33,229 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 18:46:33,230 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 18:46:33,230 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 18:46:33,230 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 18:46:33,231 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 18:46:33,232 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 18:46:33,232 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 18:46:33,233 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 18:46:33,234 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 18:46:33,235 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 18:46:33,236 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 18:46:33,237 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 18:46:33,238 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 18:46:33,239 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 18:46:33,240 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 18:46:33,240 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 18:46:33,240 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 18:46:33,241 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 18:46:33,241 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 18:46:33,242 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 18:46:33,243 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 18:46:33,243 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 18:46:33,243 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 18:46:33,243 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 18:46:33,244 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 18:46:33,244 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 18:46:33,245 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 18:46:33,245 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-02 18:46:33,253 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 18:46:33,253 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 18:46:33,253 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 18:46:33,253 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-02 18:46:33,254 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 18:46:33,254 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 18:46:33,254 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 18:46:33,254 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 18:46:33,254 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 18:46:33,254 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 18:46:33,254 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 18:46:33,254 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 18:46:33,254 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 18:46:33,254 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 18:46:33,255 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 18:46:33,255 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 18:46:33,255 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 18:46:33,255 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 18:46:33,255 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 18:46:33,255 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 18:46:33,255 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 18:46:33,255 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 18:46:33,255 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 18:46:33,255 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 18:46:33,255 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 18:46:33,255 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 18:46:33,256 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 18:46:33,256 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 18:46:33,256 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 18:46:33,256 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml 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(__VERIFIER_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 -> 31de2fb67e84e52bb7705ac8720e6b139fef2d91 [2018-12-02 18:46:33,272 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 18:46:33,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 18:46:33,282 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 18:46:33,283 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 18:46:33,283 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 18:46:33,283 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/sll-01_false-unreach-call_false-valid-deref.i [2018-12-02 18:46:33,320 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/bin-2019/ukojak/data/40421aaf5/c8b9e767cbb84c7aac12f1b040c47411/FLAG909a0fea7 [2018-12-02 18:46:33,670 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 18:46:33,670 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/sv-benchmarks/c/forester-heap/sll-01_false-unreach-call_false-valid-deref.i [2018-12-02 18:46:33,676 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/bin-2019/ukojak/data/40421aaf5/c8b9e767cbb84c7aac12f1b040c47411/FLAG909a0fea7 [2018-12-02 18:46:34,059 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/bin-2019/ukojak/data/40421aaf5/c8b9e767cbb84c7aac12f1b040c47411 [2018-12-02 18:46:34,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 18:46:34,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 18:46:34,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 18:46:34,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 18:46:34,066 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 18:46:34,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:46:34" (1/1) ... [2018-12-02 18:46:34,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211e4e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:34, skipping insertion in model container [2018-12-02 18:46:34,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:46:34" (1/1) ... [2018-12-02 18:46:34,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 18:46:34,095 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 18:46:34,242 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 18:46:34,247 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 18:46:34,324 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 18:46:34,344 INFO L195 MainTranslator]: Completed translation [2018-12-02 18:46:34,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:34 WrapperNode [2018-12-02 18:46:34,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 18:46:34,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 18:46:34,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 18:46:34,345 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 18:46:34,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:34" (1/1) ... [2018-12-02 18:46:34,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:34" (1/1) ... [2018-12-02 18:46:34,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 18:46:34,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 18:46:34,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 18:46:34,372 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 18:46:34,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:34" (1/1) ... [2018-12-02 18:46:34,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:34" (1/1) ... [2018-12-02 18:46:34,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:34" (1/1) ... [2018-12-02 18:46:34,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:34" (1/1) ... [2018-12-02 18:46:34,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:34" (1/1) ... [2018-12-02 18:46:34,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:34" (1/1) ... [2018-12-02 18:46:34,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:34" (1/1) ... [2018-12-02 18:46:34,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 18:46:34,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 18:46:34,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 18:46:34,391 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 18:46:34,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 18:46:34,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 18:46:34,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-02 18:46:34,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-02 18:46:34,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 18:46:34,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 18:46:34,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 18:46:34,873 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 18:46:34,873 INFO L280 CfgBuilder]: Removed 34 assue(true) statements. [2018-12-02 18:46:34,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:46:34 BoogieIcfgContainer [2018-12-02 18:46:34,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 18:46:34,874 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 18:46:34,874 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 18:46:34,880 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 18:46:34,880 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:46:34" (1/1) ... [2018-12-02 18:46:34,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:46:34,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:34,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 74 states and 118 transitions. [2018-12-02 18:46:34,908 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 118 transitions. [2018-12-02 18:46:34,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 18:46:34,910 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:34,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:34,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 72 states and 113 transitions. [2018-12-02 18:46:34,999 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 113 transitions. [2018-12-02 18:46:34,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 18:46:34,999 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:35,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:35,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:35,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 70 states and 108 transitions. [2018-12-02 18:46:35,053 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 108 transitions. [2018-12-02 18:46:35,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-02 18:46:35,053 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:35,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:35,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:35,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 70 states and 103 transitions. [2018-12-02 18:46:35,074 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2018-12-02 18:46:35,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-02 18:46:35,074 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:35,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:35,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:35,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 68 states and 98 transitions. [2018-12-02 18:46:35,113 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 98 transitions. [2018-12-02 18:46:35,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 18:46:35,113 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:35,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:35,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:35,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 72 states and 104 transitions. [2018-12-02 18:46:35,202 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 104 transitions. [2018-12-02 18:46:35,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 18:46:35,202 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:35,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:35,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:35,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 70 states and 99 transitions. [2018-12-02 18:46:35,229 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 99 transitions. [2018-12-02 18:46:35,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 18:46:35,229 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:35,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:35,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 72 states and 100 transitions. [2018-12-02 18:46:35,279 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2018-12-02 18:46:35,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 18:46:35,280 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:35,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:35,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:35,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 70 states and 95 transitions. [2018-12-02 18:46:35,333 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 95 transitions. [2018-12-02 18:46:35,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 18:46:35,333 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:35,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:35,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:35,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 72 states and 95 transitions. [2018-12-02 18:46:35,361 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 95 transitions. [2018-12-02 18:46:35,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 18:46:35,361 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:35,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:35,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:35,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 70 states and 91 transitions. [2018-12-02 18:46:35,422 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 91 transitions. [2018-12-02 18:46:35,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 18:46:35,423 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:35,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:37,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:37,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 81 states and 106 transitions. [2018-12-02 18:46:37,256 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 106 transitions. [2018-12-02 18:46:37,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 18:46:37,257 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:37,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 18:46:37,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:37,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 79 states and 104 transitions. [2018-12-02 18:46:37,360 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2018-12-02 18:46:37,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 18:46:37,361 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:37,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:42,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 93 states and 123 transitions. [2018-12-02 18:46:42,376 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 123 transitions. [2018-12-02 18:46:42,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 18:46:42,379 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:42,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 18:46:42,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:42,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 86 states and 114 transitions. [2018-12-02 18:46:42,686 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 114 transitions. [2018-12-02 18:46:42,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 18:46:42,686 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:42,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:44,457 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-12-02 18:46:44,949 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-12-02 18:46:45,535 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-12-02 18:46:46,101 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-12-02 18:46:46,672 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2018-12-02 18:46:47,175 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-12-02 18:46:48,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:48,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 96 states and 134 transitions. [2018-12-02 18:46:48,270 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 134 transitions. [2018-12-02 18:46:48,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 18:46:48,271 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:48,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:48,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:48,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 97 states and 134 transitions. [2018-12-02 18:46:48,453 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 134 transitions. [2018-12-02 18:46:48,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 18:46:48,454 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:49,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:49,835 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-12-02 18:46:51,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:51,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 105 states and 146 transitions. [2018-12-02 18:46:51,301 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 146 transitions. [2018-12-02 18:46:51,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 18:46:51,302 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:51,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:53,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:53,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 116 states and 160 transitions. [2018-12-02 18:46:53,070 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 160 transitions. [2018-12-02 18:46:53,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-02 18:46:53,071 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:46:53,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:46:54,547 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-12-02 18:46:59,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 18:46:59,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 126 states and 182 transitions. [2018-12-02 18:46:59,324 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 182 transitions. [2018-12-02 18:46:59,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 18:46:59,326 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 18:46:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 18:46:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 18:46:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 18:46:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 18:46:59,431 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 20 iterations. [2018-12-02 18:46:59,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 06:46:59 ImpRootNode [2018-12-02 18:46:59,464 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 18:46:59,464 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 18:46:59,464 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 18:46:59,464 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 18:46:59,465 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:46:34" (3/4) ... [2018-12-02 18:46:59,467 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 18:46:59,511 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c1b3961c-65e3-4764-8643-fa4beb2a5799/bin-2019/ukojak/witness.graphml [2018-12-02 18:46:59,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 18:46:59,512 INFO L168 Benchmark]: Toolchain (without parser) took 25450.19 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 246.4 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -122.3 MB). Peak memory consumption was 124.1 MB. Max. memory is 11.5 GB. [2018-12-02 18:46:59,513 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 18:46:59,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -148.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-12-02 18:46:59,513 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 18:46:59,514 INFO L168 Benchmark]: Boogie Preprocessor took 19.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 18:46:59,514 INFO L168 Benchmark]: RCFGBuilder took 482.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. [2018-12-02 18:46:59,514 INFO L168 Benchmark]: CodeCheck took 24589.80 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 131.6 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -37.4 MB). Peak memory consumption was 94.2 MB. Max. memory is 11.5 GB. [2018-12-02 18:46:59,515 INFO L168 Benchmark]: Witness Printer took 47.63 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2018-12-02 18:46:59,517 INFO L336 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, 84 locations, 13 error locations. UNSAFE Result, 24.5s OverallTime, 20 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3021296 SDtfs, 630612 SDslu, 398016 SDs, 0 SdLazy, 3207816 SolverSat, 1670184 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2636 GetRequests, 2373 SyntacticMatches, 39 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17992 ImplicationChecksByTransitivity, 22.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 382 NumberOfCodeBlocks, 382 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 333 ConstructedInterpolants, 0 QuantifiedInterpolants, 71713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 15 PerfectInterpolantSequences, 7/12 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1025]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L991] SLL* list = malloc(sizeof(SLL)); [L992] list->next = ((void*)0) [L993] COND FALSE !(!(list != ((void*)0))) [L993] COND FALSE !(__VERIFIER_nondet_int()) [L993] list->inner = malloc(sizeof(SLL)) [L993] EXPR list->inner [L993] list->inner->next = ((void*)0) [L993] EXPR list->inner [L993] list->inner->inner = ((void*)0) [L993] EXPR list->inner [L993] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L993] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L995] SLL* end = list; [L998] COND FALSE !(__VERIFIER_nondet_int()) [L1008] end = ((void*)0) [L1009] end = list [L1012] COND FALSE !(!(((void*)0) != end)) [L1014] COND TRUE ((void*)0) != end [L1016] int len = 0; [L1017] EXPR end->inner [L1017] SLL* inner = end->inner; [L1018] COND TRUE ((void*)0) != inner [L1020] COND TRUE len == 0 [L1021] len = 1 [L1024] COND FALSE !(!(((void*)0) != inner)) [L1025] EXPR inner->inner [L1025] COND FALSE !(!(((void*)0) == inner->inner)) [L1026] EXPR inner->next [L1026] COND FALSE !(!(((void*)0) == inner->next)) [L1027] EXPR inner->inner [L1027] inner = inner->inner [L1028] COND TRUE len == 1 [L1029] EXPR inner->inner [L1029] inner = inner->inner [L1018] COND TRUE ((void*)0) != inner [L1020] COND FALSE !(len == 0) [L1023] len = 2 [L1024] COND FALSE !(!(((void*)0) != inner)) [L1025] EXPR inner->inner [L1025] COND TRUE !(((void*)0) == inner->inner) [L1025] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 281.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -148.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 482.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. * CodeCheck took 24589.80 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 131.6 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -37.4 MB). Peak memory consumption was 94.2 MB. Max. memory is 11.5 GB. * Witness Printer took 47.63 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...