./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-token_false-unreach-call_false-valid-memcleanup.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_f4082488-3c83-4e4c-8808-a8dfee1210b0/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f4082488-3c83-4e4c-8808-a8dfee1210b0/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f4082488-3c83-4e4c-8808-a8dfee1210b0/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f4082488-3c83-4e4c-8808-a8dfee1210b0/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-token_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f4082488-3c83-4e4c-8808-a8dfee1210b0/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f4082488-3c83-4e4c-8808-a8dfee1210b0/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 35a5ccff58935eefedf723cd2243fac7c8b8e61b ............................................................................................................................................................................................................................................................................... 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 23:23:19,810 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 23:23:19,811 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 23:23:19,817 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 23:23:19,818 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 23:23:19,818 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 23:23:19,819 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 23:23:19,819 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 23:23:19,820 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 23:23:19,821 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 23:23:19,821 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 23:23:19,821 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 23:23:19,822 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 23:23:19,822 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 23:23:19,823 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 23:23:19,823 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 23:23:19,823 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 23:23:19,824 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 23:23:19,825 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 23:23:19,826 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 23:23:19,827 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 23:23:19,827 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 23:23:19,828 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 23:23:19,829 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 23:23:19,829 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 23:23:19,829 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 23:23:19,830 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 23:23:19,830 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 23:23:19,830 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 23:23:19,831 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 23:23:19,831 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 23:23:19,832 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 23:23:19,832 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 23:23:19,832 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 23:23:19,832 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 23:23:19,833 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 23:23:19,833 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f4082488-3c83-4e4c-8808-a8dfee1210b0/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-02 23:23:19,840 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 23:23:19,840 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 23:23:19,841 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 23:23:19,841 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-02 23:23:19,841 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 23:23:19,841 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 23:23:19,841 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 23:23:19,841 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 23:23:19,841 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 23:23:19,841 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 23:23:19,841 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 23:23:19,842 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 23:23:19,842 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 23:23:19,842 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 23:23:19,842 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 23:23:19,842 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 23:23:19,842 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 23:23:19,842 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 23:23:19,842 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 23:23:19,842 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 23:23:19,842 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 23:23:19,842 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 23:23:19,842 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 23:23:19,842 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 23:23:19,843 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 23:23:19,843 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 23:23:19,843 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 23:23:19,843 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 23:23:19,843 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 23:23:19,843 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_f4082488-3c83-4e4c-8808-a8dfee1210b0/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 -> 35a5ccff58935eefedf723cd2243fac7c8b8e61b [2018-12-02 23:23:19,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 23:23:19,866 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 23:23:19,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 23:23:19,869 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 23:23:19,869 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 23:23:19,870 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f4082488-3c83-4e4c-8808-a8dfee1210b0/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/dll-token_false-unreach-call_false-valid-memcleanup.i [2018-12-02 23:23:19,903 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f4082488-3c83-4e4c-8808-a8dfee1210b0/bin-2019/ukojak/data/9ba2206b2/6f46e52710a54026ad5e95e71690f255/FLAGdef2fa0c8 [2018-12-02 23:23:20,312 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 23:23:20,313 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f4082488-3c83-4e4c-8808-a8dfee1210b0/sv-benchmarks/c/forester-heap/dll-token_false-unreach-call_false-valid-memcleanup.i [2018-12-02 23:23:20,319 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f4082488-3c83-4e4c-8808-a8dfee1210b0/bin-2019/ukojak/data/9ba2206b2/6f46e52710a54026ad5e95e71690f255/FLAGdef2fa0c8 [2018-12-02 23:23:20,327 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f4082488-3c83-4e4c-8808-a8dfee1210b0/bin-2019/ukojak/data/9ba2206b2/6f46e52710a54026ad5e95e71690f255 [2018-12-02 23:23:20,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 23:23:20,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 23:23:20,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 23:23:20,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 23:23:20,332 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 23:23:20,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:23:20" (1/1) ... [2018-12-02 23:23:20,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a6ee20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:20, skipping insertion in model container [2018-12-02 23:23:20,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:23:20" (1/1) ... [2018-12-02 23:23:20,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 23:23:20,358 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 23:23:20,500 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 23:23:20,537 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 23:23:20,561 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 23:23:20,581 INFO L195 MainTranslator]: Completed translation [2018-12-02 23:23:20,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:20 WrapperNode [2018-12-02 23:23:20,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 23:23:20,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 23:23:20,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 23:23:20,582 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 23:23:20,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:20" (1/1) ... [2018-12-02 23:23:20,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:20" (1/1) ... [2018-12-02 23:23:20,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 23:23:20,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 23:23:20,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 23:23:20,610 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 23:23:20,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:20" (1/1) ... [2018-12-02 23:23:20,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:20" (1/1) ... [2018-12-02 23:23:20,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:20" (1/1) ... [2018-12-02 23:23:20,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:20" (1/1) ... [2018-12-02 23:23:20,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:20" (1/1) ... [2018-12-02 23:23:20,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:20" (1/1) ... [2018-12-02 23:23:20,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:20" (1/1) ... [2018-12-02 23:23:20,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 23:23:20,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 23:23:20,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 23:23:20,628 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 23:23:20,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4082488-3c83-4e4c-8808-a8dfee1210b0/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 23:23:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 23:23:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 23:23:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 23:23:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-02 23:23:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-02 23:23:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 23:23:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 23:23:20,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 23:23:20,889 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 23:23:20,890 INFO L280 CfgBuilder]: Removed 19 assue(true) statements. [2018-12-02 23:23:20,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:23:20 BoogieIcfgContainer [2018-12-02 23:23:20,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 23:23:20,890 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 23:23:20,890 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 23:23:20,897 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 23:23:20,897 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:23:20" (1/1) ... [2018-12-02 23:23:20,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 23:23:20,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 23:23:20,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 41 states and 64 transitions. [2018-12-02 23:23:20,924 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2018-12-02 23:23:20,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 23:23:20,926 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 23:23:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 23:23:20,997 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 23:23:21,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 23:23:21,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 41 states and 59 transitions. [2018-12-02 23:23:21,002 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2018-12-02 23:23:21,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 23:23:21,003 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 23:23:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 23:23:21,056 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 23:23:21,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 23:23:21,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 41 states and 59 transitions. [2018-12-02 23:23:21,096 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2018-12-02 23:23:21,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-02 23:23:21,097 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 23:23:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 23:23:21,138 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 23:23:21,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 23:23:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 45 states and 66 transitions. [2018-12-02 23:23:21,208 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2018-12-02 23:23:21,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 23:23:21,208 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 23:23:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 23:23:21,221 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 23:23:21,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 23:23:21,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 45 states and 62 transitions. [2018-12-02 23:23:21,224 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2018-12-02 23:23:21,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 23:23:21,224 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 23:23:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 23:23:21,245 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 23:23:21,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 23:23:21,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2018-12-02 23:23:21,336 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2018-12-02 23:23:21,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 23:23:21,336 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 23:23:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 23:23:21,398 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 23:23:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 23:23:21,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 37 states and 51 transitions. [2018-12-02 23:23:21,446 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2018-12-02 23:23:21,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 23:23:21,446 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 23:23:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 23:23:21,563 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 23:23:21,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 23:23:21,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 44 states and 58 transitions. [2018-12-02 23:23:21,893 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2018-12-02 23:23:21,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 23:23:21,893 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 23:23:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 23:23:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 23:23:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 23:23:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 23:23:22,024 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2018-12-02 23:23:22,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:23:22 ImpRootNode [2018-12-02 23:23:22,050 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 23:23:22,050 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 23:23:22,050 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 23:23:22,050 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 23:23:22,051 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:23:20" (3/4) ... [2018-12-02 23:23:22,053 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 23:23:22,085 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f4082488-3c83-4e4c-8808-a8dfee1210b0/bin-2019/ukojak/witness.graphml [2018-12-02 23:23:22,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 23:23:22,086 INFO L168 Benchmark]: Toolchain (without parser) took 1756.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 70.3 MB). Free memory was 957.1 MB in the beginning and 803.4 MB in the end (delta: 153.7 MB). Peak memory consumption was 223.9 MB. Max. memory is 11.5 GB. [2018-12-02 23:23:22,087 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 23:23:22,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 70.3 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -95.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-02 23:23:22,087 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.92 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 23:23:22,088 INFO L168 Benchmark]: Boogie Preprocessor took 18.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 23:23:22,088 INFO L168 Benchmark]: RCFGBuilder took 261.72 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: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2018-12-02 23:23:22,088 INFO L168 Benchmark]: CodeCheck took 1159.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 810.8 MB in the end (delta: 207.0 MB). Peak memory consumption was 207.0 MB. Max. memory is 11.5 GB. [2018-12-02 23:23:22,089 INFO L168 Benchmark]: Witness Printer took 35.13 ms. Allocated memory is still 1.1 GB. Free memory was 810.8 MB in the beginning and 803.4 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. [2018-12-02 23:23:22,091 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, 44 locations, 6 error locations. UNSAFE Result, 1.1s OverallTime, 8 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1036 SDtfs, 358 SDslu, 698 SDs, 0 SdLazy, 1024 SolverSat, 452 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 447 GetRequests, 400 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 1599 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 2/2 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: 1026]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L993] SLL* head = malloc(sizeof(SLL)); [L994] head->next = ((void*)0) [L995] head->prev = ((void*)0) [L996] head->data = 0 [L998] SLL* x = head; [L1001] COND FALSE !(__VERIFIER_nondet_int()) [L1010] x->data = 1 [L1011] x->next = malloc(sizeof(SLL)) [L1012] EXPR x->next [L1012] x->next->prev = x [L1013] EXPR x->next [L1013] x->next->data = 2 [L1015] x = head [L1017] COND FALSE !(!(((void*)0) != x)) [L1019] EXPR x->data [L1019] COND FALSE !(1 != x->data) [L1024] EXPR x->data [L1024] COND FALSE !(!(1 == x->data)) [L1025] EXPR x->next [L1025] x = x->next [L1026] EXPR x->data [L1026] COND TRUE !(2 != x->data) [L1026] __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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 252.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 70.3 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -95.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.92 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 261.72 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: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. * CodeCheck took 1159.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 810.8 MB in the end (delta: 207.0 MB). Peak memory consumption was 207.0 MB. Max. memory is 11.5 GB. * Witness Printer took 35.13 ms. Allocated memory is still 1.1 GB. Free memory was 810.8 MB in the beginning and 803.4 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...