./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_68eba8e5-42af-4e2e-a7de-9a84b15e928a/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_68eba8e5-42af-4e2e-a7de-9a84b15e928a/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_68eba8e5-42af-4e2e-a7de-9a84b15e928a/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_68eba8e5-42af-4e2e-a7de-9a84b15e928a/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_68eba8e5-42af-4e2e-a7de-9a84b15e928a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_68eba8e5-42af-4e2e-a7de-9a84b15e928a/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 60dcf5da7f0124de96473d8010137f60c5cb2803 ......................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-10-26 20:58:30,566 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:58:30,569 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:58:30,580 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:58:30,581 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:58:30,581 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:58:30,582 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:58:30,583 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:58:30,584 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:58:30,585 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:58:30,586 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:58:30,586 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:58:30,590 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:58:30,592 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:58:30,598 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:58:30,600 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:58:30,601 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:58:30,602 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:58:30,603 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:58:30,604 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:58:30,604 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:58:30,605 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:58:30,611 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:58:30,611 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:58:30,612 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:58:30,612 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:58:30,613 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:58:30,613 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:58:30,614 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:58:30,615 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:58:30,615 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:58:30,615 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 20:58:30,615 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 20:58:30,615 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 20:58:30,616 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 20:58:30,616 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 20:58:30,617 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_68eba8e5-42af-4e2e-a7de-9a84b15e928a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-26 20:58:30,633 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:58:30,633 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:58:30,633 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:58:30,634 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 20:58:30,634 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 20:58:30,635 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 20:58:30,635 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:58:30,635 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 20:58:30,635 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 20:58:30,635 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 20:58:30,635 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:58:30,635 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:58:30,636 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:58:30,636 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:58:30,636 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 20:58:30,636 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:58:30,636 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:58:30,636 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 20:58:30,636 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 20:58:30,637 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:58:30,637 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:58:30,637 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 20:58:30,637 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:58:30,637 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:58:30,637 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:58:30,637 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 20:58:30,637 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:58:30,638 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 20:58:30,638 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_68eba8e5-42af-4e2e-a7de-9a84b15e928a/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 -> 60dcf5da7f0124de96473d8010137f60c5cb2803 [2018-10-26 20:58:30,664 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:58:30,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:58:30,676 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:58:30,677 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:58:30,677 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:58:30,678 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_68eba8e5-42af-4e2e-a7de-9a84b15e928a/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i [2018-10-26 20:58:30,723 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68eba8e5-42af-4e2e-a7de-9a84b15e928a/bin-2019/ukojak/data/c545ca7fa/0f7151d30cb044ca9097736fcd5aae80/FLAGef64498f6 [2018-10-26 20:58:31,124 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:58:31,125 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_68eba8e5-42af-4e2e-a7de-9a84b15e928a/sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i [2018-10-26 20:58:31,135 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68eba8e5-42af-4e2e-a7de-9a84b15e928a/bin-2019/ukojak/data/c545ca7fa/0f7151d30cb044ca9097736fcd5aae80/FLAGef64498f6 [2018-10-26 20:58:31,147 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_68eba8e5-42af-4e2e-a7de-9a84b15e928a/bin-2019/ukojak/data/c545ca7fa/0f7151d30cb044ca9097736fcd5aae80 [2018-10-26 20:58:31,150 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:58:31,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 20:58:31,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:58:31,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:58:31,155 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:58:31,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:58:31" (1/1) ... [2018-10-26 20:58:31,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@893e0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:31, skipping insertion in model container [2018-10-26 20:58:31,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:58:31" (1/1) ... [2018-10-26 20:58:31,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:58:31,203 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:58:31,435 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:58:31,444 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:58:31,498 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:58:31,536 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:58:31,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:31 WrapperNode [2018-10-26 20:58:31,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:58:31,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 20:58:31,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 20:58:31,538 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 20:58:31,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:31" (1/1) ... [2018-10-26 20:58:31,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:31" (1/1) ... [2018-10-26 20:58:31,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 20:58:31,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:58:31,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:58:31,638 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:58:31,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:31" (1/1) ... [2018-10-26 20:58:31,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:31" (1/1) ... [2018-10-26 20:58:31,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:31" (1/1) ... [2018-10-26 20:58:31,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:31" (1/1) ... [2018-10-26 20:58:31,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:31" (1/1) ... [2018-10-26 20:58:31,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:31" (1/1) ... [2018-10-26 20:58:31,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:31" (1/1) ... [2018-10-26 20:58:31,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:58:31,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:58:31,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:58:31,673 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:58:31,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:58:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68eba8e5-42af-4e2e-a7de-9a84b15e928a/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 [2018-10-26 20:58:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 20:58:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 20:58:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-26 20:58:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-10-26 20:58:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-10-26 20:58:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 20:58:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:58:31,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:58:32,863 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:58:32,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:58:32 BoogieIcfgContainer [2018-10-26 20:58:32,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:58:32,864 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 20:58:32,865 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 20:58:32,874 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 20:58:32,874 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:58:32" (1/1) ... [2018-10-26 20:58:32,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:58:32,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:58:32,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 43 states and 66 transitions. [2018-10-26 20:58:32,916 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 66 transitions. [2018-10-26 20:58:32,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-26 20:58:32,919 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:58:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:58:33,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:58:33,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:58:33,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 41 states and 60 transitions. [2018-10-26 20:58:33,106 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2018-10-26 20:58:33,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-26 20:58:33,106 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:58:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:58:33,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:58:33,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:58:33,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 46 states and 64 transitions. [2018-10-26 20:58:33,274 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2018-10-26 20:58:33,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-26 20:58:33,274 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:58:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:58:33,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:58:33,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:58:33,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 46 states and 60 transitions. [2018-10-26 20:58:33,300 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2018-10-26 20:58:33,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 20:58:33,301 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:58:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:58:33,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 20:58:33,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:58:33,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 39 states and 51 transitions. [2018-10-26 20:58:33,491 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2018-10-26 20:58:33,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 20:58:33,492 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:58:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:58:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:58:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:58:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:58:33,582 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2018-10-26 20:58:33,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 08:58:33 ImpRootNode [2018-10-26 20:58:33,606 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 20:58:33,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 20:58:33,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 20:58:33,607 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 20:58:33,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:58:32" (3/4) ... [2018-10-26 20:58:33,609 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 20:58:33,646 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_68eba8e5-42af-4e2e-a7de-9a84b15e928a/bin-2019/ukojak/witness.graphml [2018-10-26 20:58:33,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 20:58:33,647 INFO L168 Benchmark]: Toolchain (without parser) took 2495.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -136.8 MB). Peak memory consumption was 49.9 MB. Max. memory is 11.5 GB. [2018-10-26 20:58:33,648 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:58:33,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.07 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 927.6 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-10-26 20:58:33,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 927.6 MB in the beginning and 1.2 GB in the end (delta: -256.6 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2018-10-26 20:58:33,649 INFO L168 Benchmark]: Boogie Preprocessor took 35.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-10-26 20:58:33,650 INFO L168 Benchmark]: RCFGBuilder took 1191.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-10-26 20:58:33,650 INFO L168 Benchmark]: CodeCheck took 741.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.7 MB). Peak memory consumption was 41.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:58:33,651 INFO L168 Benchmark]: Witness Printer took 39.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-10-26 20:58:33,653 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, 77 locations, 6 error locations. UNSAFE Result, 0.6s OverallTime, 5 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 152 SDtfs, 80 SDslu, 92 SDs, 0 SdLazy, 128 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 244 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 732 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 1020]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] SLL* head = malloc(sizeof(SLL)); [L993] FCALL head->next = ((void*)0) [L994] FCALL head->data = 0 [L996] SLL* x = head; [L999] COND FALSE !(__VERIFIER_nondet_int()) [L1007] FCALL x->data = 1 [L1008] EXPR, FCALL malloc(sizeof(SLL)) [L1008] FCALL x->next = malloc(sizeof(SLL)) [L1009] EXPR, FCALL x->next [L1009] FCALL x->next->data = 2 [L1011] x = head [L1013] COND FALSE !(!(((void*)0) != x)) [L1013] COND FALSE !(0) [L1015] EXPR, FCALL x->data [L1015] COND FALSE !(1 != x->data) [L1020] EXPR, FCALL x->data [L1020] COND TRUE !(2 == x->data) [L1020] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 385.07 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 927.6 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 99.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 927.6 MB in the beginning and 1.2 GB in the end (delta: -256.6 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1191.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * CodeCheck took 741.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.7 MB). Peak memory consumption was 41.7 MB. Max. memory is 11.5 GB. * Witness Printer took 39.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...