./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/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_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/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 0.1.23-1dbac8b [2018-11-10 02:58:46,736 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 02:58:46,737 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 02:58:46,744 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 02:58:46,744 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 02:58:46,745 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 02:58:46,746 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 02:58:46,747 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 02:58:46,748 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 02:58:46,748 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 02:58:46,749 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 02:58:46,749 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 02:58:46,750 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 02:58:46,750 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 02:58:46,751 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 02:58:46,752 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 02:58:46,752 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 02:58:46,754 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 02:58:46,755 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 02:58:46,756 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 02:58:46,757 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 02:58:46,758 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 02:58:46,759 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 02:58:46,759 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 02:58:46,760 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 02:58:46,760 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 02:58:46,761 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 02:58:46,762 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 02:58:46,762 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 02:58:46,763 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 02:58:46,763 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 02:58:46,764 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 02:58:46,764 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 02:58:46,764 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 02:58:46,764 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 02:58:46,765 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 02:58:46,765 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 02:58:46,775 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 02:58:46,775 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 02:58:46,776 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 02:58:46,776 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 02:58:46,776 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 02:58:46,776 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 02:58:46,777 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 02:58:46,777 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 02:58:46,777 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 02:58:46,777 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 02:58:46,777 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 02:58:46,777 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 02:58:46,777 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 02:58:46,778 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 02:58:46,778 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 02:58:46,778 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 02:58:46,778 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 02:58:46,778 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 02:58:46,778 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 02:58:46,779 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 02:58:46,779 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 02:58:46,779 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 02:58:46,779 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 02:58:46,779 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 02:58:46,779 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 02:58:46,779 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 02:58:46,780 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 02:58:46,780 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 02:58:46,780 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_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/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 [2018-11-10 02:58:46,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 02:58:46,811 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 02:58:46,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 02:58:46,814 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 02:58:46,814 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 02:58:46,815 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/dll-token_false-unreach-call_false-valid-memcleanup.i [2018-11-10 02:58:46,850 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/bin-2019/ukojak/data/ba42d8a61/d9087b3e28834ec4a8f85c7d25febc88/FLAG3a6a4dacf [2018-11-10 02:58:47,273 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 02:58:47,274 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/sv-benchmarks/c/forester-heap/dll-token_false-unreach-call_false-valid-memcleanup.i [2018-11-10 02:58:47,280 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/bin-2019/ukojak/data/ba42d8a61/d9087b3e28834ec4a8f85c7d25febc88/FLAG3a6a4dacf [2018-11-10 02:58:47,289 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/bin-2019/ukojak/data/ba42d8a61/d9087b3e28834ec4a8f85c7d25febc88 [2018-11-10 02:58:47,291 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 02:58:47,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 02:58:47,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 02:58:47,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 02:58:47,295 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 02:58:47,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:58:47" (1/1) ... [2018-11-10 02:58:47,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4943cf3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:47, skipping insertion in model container [2018-11-10 02:58:47,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:58:47" (1/1) ... [2018-11-10 02:58:47,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 02:58:47,334 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 02:58:47,514 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 02:58:47,521 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 02:58:47,551 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 02:58:47,576 INFO L193 MainTranslator]: Completed translation [2018-11-10 02:58:47,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:47 WrapperNode [2018-11-10 02:58:47,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 02:58:47,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 02:58:47,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 02:58:47,577 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 02:58:47,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:47" (1/1) ... [2018-11-10 02:58:47,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:47" (1/1) ... [2018-11-10 02:58:47,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 02:58:47,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 02:58:47,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 02:58:47,652 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 02:58:47,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:47" (1/1) ... [2018-11-10 02:58:47,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:47" (1/1) ... [2018-11-10 02:58:47,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:47" (1/1) ... [2018-11-10 02:58:47,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:47" (1/1) ... [2018-11-10 02:58:47,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:47" (1/1) ... [2018-11-10 02:58:47,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:47" (1/1) ... [2018-11-10 02:58:47,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:47" (1/1) ... [2018-11-10 02:58:47,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 02:58:47,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 02:58:47,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 02:58:47,671 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 02:58:47,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/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 [2018-11-10 02:58:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 02:58:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 02:58:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 02:58:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 02:58:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 02:58:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 02:58:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 02:58:47,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 02:58:48,247 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 02:58:48,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:58:48 BoogieIcfgContainer [2018-11-10 02:58:48,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 02:58:48,248 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 02:58:48,248 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 02:58:48,257 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 02:58:48,258 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:58:48" (1/1) ... [2018-11-10 02:58:48,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:58:48,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:58:48,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 43 states and 66 transitions. [2018-11-10 02:58:48,295 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 66 transitions. [2018-11-10 02:58:48,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 02:58:48,297 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:58:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:58:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:58:48,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:58:48,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 43 states and 61 transitions. [2018-11-10 02:58:48,387 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 61 transitions. [2018-11-10 02:58:48,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 02:58:48,387 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:58:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:58:48,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:58:48,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:58:48,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 43 states and 61 transitions. [2018-11-10 02:58:48,532 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 61 transitions. [2018-11-10 02:58:48,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 02:58:48,532 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:58:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:58:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:58:48,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:58:48,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 48 states and 69 transitions. [2018-11-10 02:58:48,640 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2018-11-10 02:58:48,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 02:58:48,640 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:58:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:58:48,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:58:48,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:58:48,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 48 states and 65 transitions. [2018-11-10 02:58:48,663 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2018-11-10 02:58:48,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 02:58:48,664 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:58:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:58:48,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:58:48,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:58:48,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 46 states and 63 transitions. [2018-11-10 02:58:48,829 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 63 transitions. [2018-11-10 02:58:48,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 02:58:48,829 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:58:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:58:48,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:58:49,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:58:49,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 54 states and 72 transitions. [2018-11-10 02:58:49,348 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 72 transitions. [2018-11-10 02:58:49,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 02:58:49,351 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:58:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:58:49,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 02:58:49,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:58:49,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 57 states and 76 transitions. [2018-11-10 02:58:49,473 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 76 transitions. [2018-11-10 02:58:49,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 02:58:49,473 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:58:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:58:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 02:58:49,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:58:49,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 47 states and 62 transitions. [2018-11-10 02:58:49,622 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2018-11-10 02:58:49,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 02:58:49,622 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:58:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:58:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:58:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:58:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:58:49,702 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2018-11-10 02:58:49,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 02:58:49 ImpRootNode [2018-11-10 02:58:49,726 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 02:58:49,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 02:58:49,727 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 02:58:49,727 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 02:58:49,727 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:58:48" (3/4) ... [2018-11-10 02:58:49,729 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 02:58:49,770 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_84d8fabe-53e8-4a56-aa35-cc4fbae2b24b/bin-2019/ukojak/witness.graphml [2018-11-10 02:58:49,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 02:58:49,771 INFO L168 Benchmark]: Toolchain (without parser) took 2480.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -137.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:58:49,773 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:58:49,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.93 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 933.5 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-10 02:58:49,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -189.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-10 02:58:49,774 INFO L168 Benchmark]: Boogie Preprocessor took 19.19 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 02:58:49,775 INFO L168 Benchmark]: RCFGBuilder took 576.77 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2018-11-10 02:58:49,775 INFO L168 Benchmark]: CodeCheck took 1477.88 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: -38.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:58:49,776 INFO L168 Benchmark]: Witness Printer took 44.24 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-10 02:58:49,779 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, 6 error locations. UNSAFE Result, 1.4s OverallTime, 9 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2608 SDtfs, 1040 SDslu, 1724 SDs, 0 SdLazy, 2096 SolverSat, 928 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 592 GetRequests, 543 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2744 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 4/4 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] EXPR, FCALL malloc(sizeof(SLL)) [L993] SLL* head = malloc(sizeof(SLL)); [L994] FCALL head->next = ((void*)0) [L995] FCALL head->prev = ((void*)0) [L996] FCALL head->data = 0 [L998] SLL* x = head; [L1001] COND FALSE !(__VERIFIER_nondet_int()) [L1010] FCALL x->data = 1 [L1011] EXPR, FCALL malloc(sizeof(SLL)) [L1011] FCALL x->next = malloc(sizeof(SLL)) [L1012] EXPR, FCALL x->next [L1012] FCALL x->next->prev = x [L1013] EXPR, FCALL x->next [L1013] FCALL x->next->data = 2 [L1015] x = head [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND FALSE !(1 != x->data) [L1024] EXPR, FCALL x->data [L1024] COND FALSE !(!(1 == x->data)) [L1024] COND FALSE !(0) [L1025] EXPR, FCALL x->next [L1025] x = x->next [L1026] EXPR, FCALL 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 284.93 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 933.5 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 74.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -189.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.19 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 576.77 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * CodeCheck took 1477.88 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: -38.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 44.24 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...